User manual

ManualsBrandsBK PRECISION ManualsLaboratory & Bench PSUsBench PSU (adjustable voltage) 0 - 70 Vdc 0 - 6 A

Model: 9171, 9172, 9173, 9174, 9181, 9182,

9183, 9184, 9185

Programmable DC Power

Supplies

USER MANUAL

Summary of content (187 pages)

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Model: 9171, 9172, 9173, 9174, 9181, 9182, 9183, 9184, 9185 Programmable DC Power Supplies USER MANUAL
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Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operation, service, and repair of this instrument. Before applying power, follow the installation instructions and become familiar with the operating instructions for this instrument. If this device is damaged or something is missing, contact the place of purchase immediately.
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KEEP AWAY FROM LIVE CIRCUITS Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments must be made by qualified maintenance personnel. Disconnect the power cord before removing the instrument covers and replacing components. Under certain conditions, even with the power cable removed, dangerous voltages may exist. To avoid injuries, always disconnect power and discharge circuits before touching them.
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A CAUTION statement calls attention to an operating procedure, practice, or condition, which, if not followed correctly, could result in damage to or destruction of part or all of the product. WARNING: Do not alter the ground connection. Without the protective ground connection, all accessible conductive parts (including control knobs) can render an electric shock. The power jack and mating plug of the power cable meet IEC safety standards.
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Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE) , and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
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CE Declaration of Conformity The power supplies models 9171, 9172, 9173, 9174, 9181, 9182, 9183, 9184, 9185 meet the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnet Compatibility Directive with the following standards. Low Voltage Directive - EN61010-1: 2001 Safety requirements for electrical equipment for measurement, control, and laboratory use.
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Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Chassis (earth ground) symbol. On (Power). This is the In position of the power switch when instrument is ON. Off (Power). This is the Out position of the power switch when instrument is OFF. On (Supply). This is the AC mains connect/disconnect switch at the back of the instrument. Off (Supply). This is the AC mains connect/disconnect switch at the back of the instrument.
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Table of Contents 1 General Information ........................................................... 1 1.1 Product Overview ................................................................ 1 1.2 Package Contents ................................................................. 2 1.3 Front Panel Overview........................................................... 3 Front Panel Description ................................................................. 5 1.4 Rear Panel Overview .............................
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3.1 Menu Options .................................................................... 28 How to Access the Menu............................................................. 29 3.2 Remote Interface Setup ..................................................... 32 USB Interface (virtual COM) ........................................................ 32 GPIB Interface ............................................................................. 34 Ethernet (LAN) Interface ..........................................
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3.10 Save/Recall Output Settings .............................................. 68 3.11 Sequence Program Mode .................................................. 71 3.12 External Analog Control ..................................................... 72 3.13 Digital I/O ........................................................................... 77 INPUT .......................................................................................... 79 OUTPUT ...........................................................
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Voltage Calibration ................................................................... 163 External Analog Input Calibration............................................. 165 Index ........................................................................................... 170 SERVICE INFORMATION ........................................................ 171 LIMITED THREE-YEAR WARRANTY .................................
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1 General Information 1.1 Product Overview The 917x and 918x series are high-performance dual range linear DC power supplies that provide clean and reliable power with high resolution and accuracy. All models are programmable via standard USB interface or optional RS232, GPIB and LAN interface. Interface cards and I/O cards come in a modular form factor. Selected models feature high voltage outputs or dual channels to provide series/parallel tracking functionality.
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1.2 Package Contents Please inspect the instrument mechanically and electrically upon receiving it. Unpack all items from the shipping carton, and check for any obvious signs of physical damage that may have occurred during transportation. Report any damage to the shipping agent immediately. Save the original packing carton for possible future reshipment.
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1.
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4 3 2 6 10 5 7 11 8 9 12 13 14 15 16 18 1 17 19 20 21 Figure 3 - Front Panel for 9182/9183 2 3 4 5 6 10 7 11 8 9 12 13 14 15 16 18 1 17 19 Figure 4 - Front Panel for 9184/9185 4
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Front Panel Description 1 Power ON/OFF button 2 LCD display 3 Esc / CLR button 4 Menu button 5 ISET button 6 VSET button 7 Decimal/LCL(Local) button 8 Numeric keypad 9 RCL (Recall) button 10 OVP indicator 11 OCP indicator 12 RMT (Remote mode) indicator 13 LOCK (Key lock) indicator 14 Enter button 15 Up, Down arrow keys 16 Left, Right arrow keys 17 Output button (Dual channel models have CH1 and CH2 output buttons) 18 Output ON/OFF indicator light 19 Main output terminals
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1.
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25 25 24 31 26 27 28 29 30 23 22 Figure 7- Rear View for 9182/9183 24 31 26 27 28 29 30 22 23 Figure 8- Rear View for 9184/9185 7
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Rear Panel Description 22 S1 interface slot (shown with optional LAN/GPIB interface card) 23 S2 interface slot (shown with optional DIO/Analog interface card) 24 USB interface 25 Temperature controlled cooling fan(s) 26 AC input fuse box 27 Line input receptacle 28 Rear panel outputs (++/--) and sense (+S/-S) terminals 29 Shorting pins 30 Line voltage selection switch (bottom of power supply) See “2.2Line Voltage Selection” for details. 31 Chassis ground 1.
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Rack mount Options Rackmount kits are available for all 9 models. Refer to the following to determine your power supply rack mount size. 2U size: Models 9171, 9172, 9181 3U size: Models 9173, 9174, 9182, 9183, 9184, 9185 Model Description DRRM2U1 Rackmount kit for single 2U power supply Rackmount kit for two 2U power supplies mounted side by side Rackmount kit for single 3U power supply Rackmount kit for two l 3U power supplies mounted side by side DRRM2U2 DRRM3U1 DRRM3U2 1.
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4 1 2 3 CH1CV 5 . 000 V1 . 000 A CH2CV 5 . 000 V1 . 000 A Figure 10- Dual Channel Main Display Display Description 1 2 3 4 Output Mode (CV, CC, OFF) Voltage display (When output is OFF, it shows VSET voltage. When output is ON, it shows measured voltage) Current display (When output is OFF, it shows ISET current. When output is ON, it shows measured current) Selected channel indicators 1.
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Adds RS-485 interface for multi power supply control Option 5: RS232 Card Adds RS-232 interface How to Install Interface Cards 1. Power off the instrument and disconnect the AC power cord in the rear panel. Remove the back faceplate covering the S1 or S2 slot in the rear panel by removing the two screws on each side. S1 2. Make note of the metal notches that indicate where the card should slide into. Inside the slot, there are two rails (left and right side) where the card should slide smoothly into.
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both sides. Slide the card down carefully. When it touches the 48-pin connector, slowly push the card all the way in until the panel of the interface card aligns with the rear panel of the power supply. Interface card 4. Place the two screws to tighten and secure the installed card. 5. Connect the power cord and turn on the power supply. The newly installed card will be detected during boot up, indicated next to S1: or S2: (depending on which slot the card is installed into). Removing Interface Cards 1.
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use the screwdriver to pry the top part of the card until the card has slid out with enough room to pull out the card by hand. 3. Be sure to ground yourself before pulling out or touching any parts of the printed board on the interface card. 1.
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1 2 Step 1: 3 Remove the parts 1 2 3 4 4 5 5 5 5 5 Step 3 7 Step 1 8 5 Step 3: Fas ten the parts 5 5 7 8 9 5 5 7 9 Step 2 5 Step 4 5 6 5 Step 4: 5 Fas ten the parts 6 Step 2: 5 Remove the parts 5 6 Figure 11- 2U Single Supply Rackmount Installation 14
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1 2 3 Step 1: 4 Remove the parts 1 2 3 4 Step 2: 6 6 Fasten the parts 5 6 5 6 6 Step 1 Step 2 Step 3 7 7 Step 4 Step 3: Remove the parts 7 8 7 7 Step 5 6 9 Step 4: 6 Fasten the parts Step 5: 6 Remove the parts 6 6 9 6 9 6 6 6 Step 6 6 Step 6: Step 7 Fasten the parts 6 6 6 6 6 6 Step 7: Fasten the parts Figure 12- 2U Dual Supplies Rackmount Installation 15 7 8
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1 2 3 Step 1: 4 Rem ove th e parts 1 2 3 4 5 5 5 5 5 Step 3 7 Step 1 8 5 Step 3: 5 Fas ten the p arts 5 7 8 9 5 5 7 9 Step 4 Step 2 5 6 Step 4: 5 Fas ten th e parts 5 6 Step 2: 5 Rem ove th e parts 5 6 Figure 13- 3U Single Supply Rackmount Installation 16 5
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1 2 3 Step 1: 4 Remove the parts 1 2 3 4 6 6 5 6 6 Step 2: Step 1 Fasten the parts 5 6 Step 2 Step 3 7 Step 3: Step 4 7 Remove the parts 7 Step 5 6 9 8 Step 4: 6 7 7 Fasten the parts 7 8 6 Step 5: Remove the parts 6 9 6 6 9 6 6 6 6 Step 6 Step 7 6 Step 6: Fasten the parts 6 6 6 6 6 Step 7: Fasten the parts Figure 14–3U Dual Supplies Rackmount Installation 17
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2 Getting Started 2.1 Input Power and Fuse Requirements Input Power The rated AC input power source for powering the supplies must be within: 115V Operation:103.5V-126.
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Table 1- Input Fuse Table Model 9171 9172 9173 9174 9181 9182 9183 9184 9185 115 V AC 2.5 A 2.5 A 4A 4A 3.15 A 5A 4A 4A 4A 230 V AC 1.25 A 1.25 A 2A 2A 1.6 A 2.5 A 2A 2A 2A Note: All fuses listed have the specifications: T250V, slow blow (slow acting), 5 x 20mm. 2.2 Line Voltage Selection The power supplies can be selected to operate with 115V input or 230 V input.
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Step 1 - Check and/or Change Fuse - Locate the fuse box next to the AC input connector in the rear panel. - With a small flat blade screwdriver, insert into the fuse box slit to pull and slide out the fuse box as indicated below. - Check and replace fuse (if necessary) for the desired line voltage operation (see Table 1). Fuse box slit Check/Remove Fuse Fuse box Step 2 - Check and/or Change Line Voltage Switch - Carefully lift and turn the instrument upside down.
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Rear Panel (Bottom View) Rear Feet Line Voltage Switch Front Feet Front Panel WARNING: Do not connect power to the instrument until the line voltage selection is setup correctly. Applying an incorrect line voltage or configuring the line voltage selection improperly may damage the instrument and void all warranty. 2.3 Output Connections These power supplies have both front panel binding posts and rear panel terminals for output connections, and they are paralleled together.
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For 10 A or higher current output Rear Panel Output Front Panel Output +S + - +S + + - -S Remove shorting bars - -S + DUT WARNING: DO NOT output 10 A or more with only one pair of (+) and (-) terminals. Both (+) and (-) terminals must all be connected for applications requiring more than 10 A output. Each terminal can only accept a maximum of 10 A. Exceeding this may damage the power supply. Table 2- Wire Gauge Rating AWG Imax(A) mΩ/meter 10 40 3.3 12 25 5.2 14 20 8.3 16 13 13.
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WARNING: Before connecting wires to the front or rear panel output terminals, turn OFF the power supply to avoid damage to the instrument and the device under test (DUT). For safety, load wires must have a wire gauge size large enough to prevent overheating when the power supply operates at maximum short circuit output current. It will also prevent large voltage drops from resistances in the wires. 2.4 Preliminary Check Complete the following steps to verify that the power supply is ready for use. 1.
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SRAM TEST ................... MAIN TEST . . . . . . . . . . . . . . . . . . .OK CHECKING FOR EEPROM DATA CHECKING FOR OPTION CARD . . S1 : GPIB/LAN CARD S2 : RS485 B&K PRECISION 9181 VER : 2 .
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Output Check Voltage Check Follow the steps below to check basic voltage output with no load connected. 1. Turn on the power supply. The display will show the OFF annunciator next to the setting voltage on the left side of the display. 2. Enable the output by pressing OUTPUT (or CH1 and CH2 for dual channel models). The output indicator light will be lit and display will show the measured output voltage. The OFF annunciator will change to CV. 3.
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Current Check Follow the steps below to check basic current output of the power supply. 1. Turn on the power supply. The display will show the OFF annunciator next to the setting voltage on the left side of the display. 2. Short the (+) and (-) output terminals with test leads, shorting bar, or clip. (Refer to Table 2 to select appropriate test leads) 3. Enable the output by pressing OUTPUT (or CH1 and CH2 for dual channel models).
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7. Press POWER to turn off the power supply and remove the short on the output terminals. Check Model and Firmware Version The model and firmware version can be verified from one of the boot up screens, or from using the *IDN? query remote command, described in “4.2 Remote Commands”. Additionally, other system version and information can be found by following the steps below: 1. Press Menu , then 8 to enter INFORMATION. The following screen will be displayed. LCD VER = 2.00 MODULE VER = / WEB VER = 1.
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3 Front Panel Operation 3.1 Menu Options All settings and parameters can be configured from the built-in menu system of the power supply. To access the menu, press Menu . The menu system is divided into 8 categories and organized as follows: 1. SYSTEM SETTING • • • • • • • • • • • • • • REMOTE(USB,ETHERNET,GPIB,RS232 (optional)) GPIB ADDR(1-30) KEY LOCK(ON,OFF) IP CONFIG(STATIC) IP ADDRESS(xxx.xxx.xxx.
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• Low Current Mode (ON,OFF)** 3. PROTECTION 1. OVP SETTING • OVP (ON,OFF) • SET (0 – Max. Voltage) 2. OCP SETTING • OCP (ON,OFF) • SET (0 – Max. Current) 4. MEMORY SETTING(0-9) 5. PROGRAM MODE 6. TIMER FUNCTION • TIMER (ON,OFF) • TIME (hr:min:sec) 7. CALIBRATION 8. INFORMATION 9. CHAIN SETTING (optional) • CHAIN ON/OFF (ON,OFF) • CHAIN ADDRESS(1-31) *Dual channel models 9173 and 9174 only. **Models 9184 and 9185 only.
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1. From the front panel, press Menu to enter the main menu and the below screen will display. The on the bottom right indicates that there are more categories below that can be displayed. 1 . SYSTEM SETTING 2 . OUTPUT SETTING 3 . PROTECTION 2. Press to display those categories. The on the upper right indicates that there are categories above the current displayed categories shown. Press and the screen will display the previous menu categories. 4 . MEMORY SETTING 5 . PROGRAM MODE 6 . TIMER FUNCTION 3.
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the and keys to select the setting you want to change. Below is an example of the Remote settings being selected. Note the underline below the first character of the setting “USB”. REMOTE GPIB ADDR KEY LOCK = = = USB 1 OFF 5. Settings have selectable options that are not numeric (i.e. REMOTE settings shown above). To change them, press or . To save the changes, press the Enter key. 6. Parameters have numerical set values (i.e. GPIB ADDR parameter shown above).
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3.2 Remote Interface Setup The standard remote interface available on all models in the series is the USB (virtual COM) interface. Other optional supported interfaces such as GPIB, Ethernet (LAN), RS-232, and RS-485are available, but dependent on the interface card(s) installed on the instrument. This section will describe how to setup all the supported interfaces. Note: The RMT LED will automatically light up when the power supply is successfully connected to a PC remotely through any remote interface.
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2. Install the USB driver. Visit www.bkprecision.com to download the driver. Run the setup executable after unzipping the downloaded file. Note: Do this before connecting the USB cable from the power supply to the PC. 3. Once the installation is successful, connect the USB cable between the power supply and the PC. Drivers should be automatically recognized. To verify, go to “Device Manager” in Windows, and under “Ports (COM & LPT)”, a new device listed as “210x USB to UART Bridge (COM#)” will be listed.
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GPIB Interface GPIB interface is available when the LAN/GPIB card is installed in the “S1” or “S2” slots in the rear panel. To setup the power supply for GPIB interface, follow the steps below: 1. Press Menu , then 1 to enter SYSTEM SETTING. Select REMOTE and press Press Enter or until “GPIB” is displayed. to save changes. 2. Select GPIB ADDR and use the numeric keypad to enter the GPIB address (1 – 30). Press Enter to save changes.
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3. If STATIC is selected, then select IP ADDRESS and use the numerical keypad to enter the static IP. After entering each group of 3 digits, press Enter to go to the next group. The cursor will automatically move to the next group. Do this until all 12 digits are entered. Be sure to press Enter one more time after entering the last 3 digits for the complete IP address entry to be saved.
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BAUDRATE: 57600 PARITY: NONE DATA BITS: 8 STOP BIT: 1 FLOW CONTROL: NONE RS-485 Interface Multiple power supplies (up to 31) can be connected together in series and be controlled via USB (virtual COM) interface.
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Note:The cables are used to link the power supplies together. It is recommended to keep the cables as short as possiblebetween each unit. Communicate via USB 1. Take one Ethernet CAT5 cable and connect one end to labeled “OUT” on the RS485 interface card of the first power supply (the one that will be connected to the PC via USB cable). 2. Connect the other end to labeled “IN” on the RS485 interface card of the second power supply. 3.
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7. With the connections setup properly, on the first power supply, press Menu , then 1 to enter SYSTEM SETTING. Select REMOTE and verify that “USB” is selected. Press Enter to save changes. 8. Press Esc once to go back to the main menu and press 9 to enter CHAIN SETTING. 9. Select CHAIN ON/OFF and press Press Enter or to set it to “ON”. to save changes. 10. Select CHAIN ADDRESS and set it to “1”. Press save changes and then press Esc Enter to twice to exit the menu. 11.
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3.3 Adjusting LCD Display, Key Lock, Key Sound LCD Backlight Timer The LCD backlight has a timer that can be set to dim its brightness within a set time from when the instrument is idle. To set this: 1. Press Menu , then 1 to enter SYSTEM SETTING. Select LCD BACKLIT. Press or to change the backlight timer setting. Selectable options are: Options ALWAYS ON 1 MINS OFF 5 MINS OFF 10 MINS OFF 30 MINS OFF 2. Press Enter Description Default – Display never dims.
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Options OFF ON 2. Press Enter Description Default Lock keypad to save changes. Press Esc twice to exit the menu. 3. If ON is selected, all keys from the front panel, except for . , will be locked. The Lock LED indicator will be lit. 4. To unlock, press . and the Lock LED indicator will turn off. The KEY LOCK option under SYSTEM SETTING category will automatically default back to OFF. Disabling Key Sound To disable the beep from key presses: 1. Press Menu , then 1 to enter SYSTEM SETTING.
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3.4 Restore to Factory Default All instrument settings can be reset back to their factory default values by doing the following: WARNING: Restoring the instrument to factory default will change all current instrument settings and parameters back to their default values. 1. Press Menu , then 1 to enter SYSTEM SETTING. Select RECALL DEFAULT. Press or to change it. Selectable options are: Options OFF ON Description Default Resets instrument with factory default settings and parameters 2.
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3. To cancel this action, press Enter with NO marked by the cursor. To confirm resetting the instrument to factory default, press to select YES and press Enter . 4. After approximately 5 seconds, the instrument will automatically jump back to the normal display. All settings are now set back to their factory default values.
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3.5 Configure Voltage and Current Output Voltage and Current Limit Settings The power supply has software voltage and current limit protection settings that can be configured to limit the settable range for output from front panel or remote operation. Follow the steps in this section to adjust these settings. Voltage Limit Set 1. Press Menu , then 2 to enter OUTPUT SETTING. Press 1 to select VOLT LIMIT SETTING. 2. VOLT LIMIT MAX should be selected.
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CH1 VOLT LIMIT MAX = _20.400 V CH1 VOLT LIMIT MIN = 0 V CH2 VOLT LIMIT MAX = _20.400 V CH2 VOLT LIMIT MIN = _ 0.000 V Current Limit Set 1. Press Menu , then 2 to enter OUTPUT SETTING. Press 2 to select CURR LIMIT SETTING. 2. CURR LIMIT MAX should be selected. Use the keypad to enter the maximum current set limit and press Enter to save changes. The maximum current that can be set depends on the power supply’s maximum output current. 3. CURR LIMIT MIN is now selected.
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CH1 CH1 CH2 CURR LIMIT MAX = _10.200 A CURR LIMIT MIN= 0.000 A CURR LIMIT MAX = _10.200 A CH2 CURR LIMIT MIN = _ 0.000 A Configure Voltage and Current Output Voltage and current can be set and output from the front panel and the rear panel terminals. Refer to “3.7 Remote Sense” for setup instructions if remote sense will be used for voltage compensation at the output. Setting Voltage Follow the steps below to set the output voltage: 1. For single channel models, skip to step 2 below.
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SET = 5.000 V OFF 5 . 000 V 1 . 000 A For Dual Channel models: SET = 5.000 V CH1 OFF 5 . 000 V CH2 OFF 5 . 000 V 1 . 000 A 1 . 000 A 3. Models 9184 and 9185 do not have auto ranging available. The range must be selected manually and can be set as HIGH or LOW range. 9184: HIGH range – 200 V / 1 A LOW range – 100 V / 2 A 9185: HIGH range – 600 V / 0.35 A LOW range – 400 V / 0.5 A To select HIGH range, press from the normal display where VOLT RANGE is indicated. OFF 200 . 00 V 1 .
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OFF100 . 00 V 2 . 000 A VOLT RANGE = LOW ( : H / :L) Note:The voltage setting range is dependent on the unit’s maximum voltage output specification as well as the voltage limits set from the system menu. Verify VOLT LIMIT MAX and VOLT LIMIT MIN settings if you are unable to set a voltage within the specifications of the power supply. Setting Current Follow the steps below to set the output current: 1. For single channel models, skip to step 2 below.
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For Dual Channel models: SET = 2.000 A CH1 OFF 5 . 000 V CH2 OFF 5 . 000 V 2 . 000 A 2 . 000 A 3. Models 9184 and 9185 do not have auto ranging available. The range must be selected manually and can be set as HIGH or LOW range. 9184: HIGH range – 200 V / 1 A LOW range – 100 V / 2 A 9185: HIGH range – 600 V / 0.35 A LOW range – 400 V / 0.5 A To select HIGH range, press from the normal display To select LOW range, press instead.
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Enable/Disable Output WARNING: Before connecting wires to the front or rear panel output terminals, output should remain OFF to avoid shocks and damage to the device under test (DUT), especially when setting the supply for high voltage output. For safety, load wires must have a wire gauge size large enough to prevent overheating when the power supply operates at maximum short circuit output current. It will also prevent large voltage drops from resistances in the wires.
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Controlling Voltage/Current Output with Keys When the output is ON (enabled), the voltage (CV mode) or current (CC mode) output can be controlled incrementally by key presses. To do this, press or and a cursor will appear, highlighting the last digit of the measured voltage or current display. Use or to change and select the digit you want to change, and press or to increase or decrease that digit. The output voltage or current will change immediately as you change the digits.
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LIMIT MAX and VOLT LIMIT MIN settings if you are unable to set a voltage within the specifications of the power supply. Slew Rate Configuration Voltage and current slew rate of the output can be configured by doing the following: 1. Press Menu , then 2 to enter OUTPUT SETTING. Press 3 to select VOLT SLEWRATE SETTING. The following will be displayed: V SLEWRATE = _ 7.000 V / ms For Dual Channel models: CH1 CH2 V SLEWRATE = _ 7.000 V / ms V SLEWRATE = _ 7.000 V / ms 2.
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I SLEWRATE = _ 0.600 A / ms For Dual Channel models: CH1 CH2 I SLEWRATE = _ 0.600 A / ms I SLEWRATE = _ 0.600 A / ms 4. Use the keypad to enter the current slew rate, then press Enter to save changes. 5. Press Esc once to return to previous menu items, or press three times to exit the menu when finished. Table 4- Voltage and Current Slew Rate Ranges Model 9171 9172 9173 9174 9181 9182 9183 9184 9185 V Slew Rate (V/ms) 0.001 – 2.500 0.001 – 7.000 0.001 – 2.500 0.001 – 7.000 0.001 – 4.500 0.001 – 2.
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Output Timer Function The power supply has a built-in output timer function that can be enabled to allow setting a time in which output is remained ON. Follow the steps below to setup this function: 1. Press Menu , then 6 to select TIMER FUNCTION. The following screen will be displayed: TIMER = OFF TIME = 0 Hr 0 Min 0 Sec 2. While the cursor is selecting TIMER, press selected, then press Enter so that ON is to set and selectTIME. This will be the time for which the output will remain ON. 3.
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TIMER = 000 : 00 : 00 Sec OFF10 . 000 V1 . 000 A For Dual Channel models: TIMER = 000 : 00 : 00 Sec CH1OFF10 . 000 V1 . 000 A CH2OFF10 . 000 V1 . 000 A 7. Press OUTPUT ( CH1 or CH2 for dual channel models) to turn the output ON, and the TIMER on the display will start running. The ON annunciator will display, and the output will remain ON until the configured time period (from step 3) ends.
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Measurement Average Setting The averaging measurements used to display a reading can be adjusted by following the stepsbelow: 1. Press Menu , then 2 to enter OUTPUT SETTING. Press 5 to select MEASURE AVERAGE. The following will display: AVERAGE TIME = _ 2 2. Use the numeric keypad to enter the number of measurements the instrument will average out prior to displaying the value. Valid numbers are from 1 to 10. 3. Press Enter to save changes, then press Esc three times to exit the menu. 3.
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Note: When multiple output control is setup, there will be a maximum of 3 ms delay between channel 1 and channel 2 when both channels change output from OFF (disable) state to ON (enable) state. Follow the steps below to configure this setting: 1. Press Menu , then 1 to enter SYSTEM SETTING. Go down the list of settings and select OUTPUT MODE. 2. Press to select MULTI. Press Enter to confirm the changes, and press Esc twice to exit the menu.
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3. The TRK annunciator will appear on the display to indicate tracking mode is enabled. Both channels are now synchronized. CH1OFF CH2OFF 10 . 000 V 10 . 000 V TRK 1 . 000 A 1 . 000 A 3.7 Remote Sense Single channel models 9171, 9172, 9181, 9182, and 9183 have both front and rear panel remote sense terminals. Dual channel models 9173 and 9174, and high voltage single channel models 9184 and 9185 have rear panel remote sense terminals only.
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+S + - -S +S + + - - - S Front Panel Shorting Bar Rear Panel Shorting Bar Figure 16-Local Sense with Shorting Bar For front panel, +S and + terminals are shorted together, and –S and – terminals are shorted together with shorting bars. For rear panel, +S and + (next to +S) are shorted together, and –S and – (next to –S) are shorted together with small metal shorting bars. Note:For calibration, local sense should be used.
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Figure 17- Front Panel Remote Sense Setup To use remote sense from the rear panel, both front panel (if available) and rear panel shorting bars must also be removed. The rear +S and –S ports are connected directly to the DUT, like Figure 18 below: Figure 18- Rear Panel Remote Sense Setup WARNING: In remote sense where both the front and/or rear panel shorting bars are removed, never connect a device directly to the front (if applicable) and/or back +S and –S terminals only.
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DO NOT CONNECT LIKE BELOW: For operating with output current higher than 10 A, the connection is the same as Figure 18 above, with the addition of connecting the second pair of (+) and (-) terminals in the rear panel, like below: 60
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Rear Panel Output Rear Panel Output Remove Shorting bars +S + + - - - S +S + + - - - S Front Panel Output +S + - -S + DUT Remove shorting bars Figure 19- Remote Sense Setup for 10A or Higher Current Output Operation WARNING: DO NOT output 10A or more with only one pair of (+) and (-) terminals in the rear panel. Both (+) terminals and both (-) terminals must all be connected for applications requiring more than 10A output. Each terminal can only accept maximum of 10A.
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3.8 LED and Low Current Test Modes LED Mode All of these power supplies have LED mode, which enables them to function specifically for LED test applications. When this mode is ON (enabled), the power supply can operate in such a way as to minimize or almost eliminate the inrush current drawn by the LED load, which normally exists when the output switches from an OFF state to an ON state. To enable LED mode, follow these steps: 1. Press Menu , then 2 to enter OUTPUT SETTING.
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Figure 20- LED Testing Example The 9184 supply output is initially OFF (disabled). The LED light bar is rated for 170 V. A 10 Ω resistor is placed in series with the LED light bar. The power supply current setting (ISET) is 20 mA. Using an oscilloscope to probe between the resistor to measure current, the power supply’s output is then turned ON.
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With LED mode ON (enabled), the power supply can minimize or eliminate any inrush current from turning the output ON, which in turn will minimize damage or life of the LEDs under test. Note: For LED mode to function correctly, the output must be turned OFF when connecting between the power supply and the LEDs under test. Turn ON the output after LED mode is enabled and all other settings are configured. WARNING: For models 9184 and 9185, Low Current MODE must be set to OFF when using LED mode.
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2. Press to select ON, then press Enter to confirm the changes. Press Esc twice to exit the menu. LED MODE = OFF Low Current MODE = ON Consider the following example screenshots measuring a voltage chance from 0 V to 60 V with a load of 100 mA connected to the output.
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3.9 Output Protection Configure OVP Overvoltage protection (OVP) is available to limit the voltage output and to protect a connected DUT from an overvoltage condition. When the power supply trips the OVP, a short beep will sound and the OVP (OVP1/OVP2 for dual channel models) LED indicator on the front panel will be lit. The green output light will also disappear and output will turn OFF (disable) immediately.
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2. Press to select ON. Press Enter to confirm the changes, and use the numeric keypad to set the voltage limit for the protection to trip. Press Enter again to save changes. When the power supply voltage output reaches this limit, the OVP will trip. 3. Press Esc twice to exit the menu. To disable it, select OFF. Configure OCP Overcurrent protection (OCP) is available to limit the current output and to protect a connected DUT from an overcurrent condition.
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For Dual Channel models: CH1 OCP = ON CH2 OCP = OFF 2. Press SET = SET = to select ON. Press Enter 10.000 A 10.000 A to confirm the changes, and use the numeric keypad to set the current limit for the protection to trip. Press Enter again to save changes. When the power supply current output reaches this limit, the OCP will trip. 3. Press Esc twice to exit the menu. To disable it, select OFF. 3.
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MEM = 0 V = 0.000 V I = 0.000 A For Dual Channel models: MEM = 0 CH1 V = CH2 V = 2. Press or 0.000 V 0.000 V I = I = 0.000 A 0.000 A or use the keypad to select the memory location to store settings into. Choose between 0 – 9. 3. Press Enter to set, and use the keypad to enter a value for voltage. Afterwards, press Press Enter Enter and enter a value for current. once more and the voltage and current values will be stored into the selected memory location. 4.
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Recall Output Settings To recall a saved setting: 1. Press RCL and the screen will display as follows: RECALL = OFF 0.000 V 0.000 A For Dual Channel models: RECALL = CH1OFF 10 . 000 V CH2OFF 10 . 000 V 1 . 000 A 1 . 000 A 2. Use the keypad to enter the memory location that contains the voltage and current values to recall. The voltage and current settings will change immediately to the recalled settings.
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for setting the power on state to last known configuration. Select OFF to turn it off. 2. Press Enter to confirm the change. 3.11 Sequence Program Mode Up to 10 (1 – 10) programmed sequences can be stored into the internal memory of the power supply and be executed from the front panel or via remote commands. A sequence consists of various steps of voltage and current values with a user defined time to hold at each step.
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PROGRAM NUMBER = 0 PROGRAM OFF 2. Use the keypad to select the program number where the sequence is stored. Valid number is 1 – 10. Press Enter to confirm the program. 3. Press OUTPUT ( CH1 or CH2 for dual channel models) to enable the output and execute the programmed sequence. For dual channel models, both outputs will turn ON. 4. To disable the sequence at any time, press ( CH1 or CH2 OUTPUT for dual channel models) again. This will also turn OFF the output.
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WARNING: The terminals for external analog control of voltage and current have no input protection. Therefore take caution when connecting to a DC source or a resistance. For voltage source control, do not input a voltage outside of the range -0.7 V to 5.7 V for the 0-5 V scale, or -0.7 V to 10.7 V for 0-10 V scale. This will damage the supply. For resistance control, do not connect with resistance greater than 5 kΩ. Doing so may damage the instrument and cause it to go out of calibration.
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Dual channel DIO/Analog Card I 0–5V OR 0 – 10 V 0–5V OR 0 – 10 V + - + - DC DC + - + - V EXT CTL Single channel DIO/Analog Card Figure 23- External Voltage Control Note: Two separate DC voltage sources must be used for the setup. One for controlling voltage and one for current. Using one for either voltage or current will not operate correctly. If source is used for voltage, current setting will remain 0. If source is used for current, voltage setting will remain 0.
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See the setup below: 0 – 5 kΩ Dual channel DIO/Analog Card I 0 – 5 kΩ + - + - V EXT CTL Single channel DIO/Analog Card Figure 24- External Resistance Control Note: Two separate variable resistances must be used for the setup. One for controlling voltage and one for current. Using one for either voltage or current will not operate correctly. If resistance is used for voltage, current setting will remain 0. If resistance is used for current, voltage setting will remain 0.
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2. Go down to EXTERN CONTROL (this option is only available with DIO/Analog Card installed) and press or to select between OFF, VOLT, or RES. Select VOLT for external voltage control or RES for external resistance control. Select OFF to disable external analog control. 3. Press Enter to save the change. If VOLT is selected in the previous step, go to EXTERN LEVEL setting right below EXTERN CONTROL and press or to select between 5V or 10V.
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0.00 V 0.00 V CH1 OFF CH2OFF 5. Press OUTPUT 0.00 A 0.00 A to turn the output ON (enabled), and output voltage and current will change as your external DC voltage sources or resistances change. Note: When external analog control is enabled, all front panel keys are locked except for Menu and OUTPUT ( CH1 or CH2 for dual channel models). Output voltage and current is locked to be controlled with the connected external voltage sources or resistances only.
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Dual Channel DIO/Analog Card Single Channel DIO/Analog Card 5 4 9 3 8 2 7 1 6 Figure 25- Digital I/O Interface Below are the pin assignments for each of the 9 pins. Table 5- Digital I/O Pin Assignment Pin# 9 8 7 6 Type I/O I/O I/O I/O Binary Bit # 7 6 5 4 Decimal 128 64 32 16 Representation I/O – Can be set to either input or output. GND – Ground pin 5 GND - 4 I/O 3 3 I/O 2 2 I/O 1 1 I/O 0 8 4 2 1 WARNING: Do not input more than 5 V to any of the digital I/O pins.
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INPUT Digital input for representing logic high (1) is 5 V, and for logic low (0) is 0 V. Minimum voltage for logic high (1) must be at least 3.15 V. Maximum voltage for logic low (0) must not exceed 1.35 V. To setup any of the 8 pins (except pin 5) as input pins, the remote command GPIO:DIR is used. All pins (except pin 5) are represented as 8-bits binary, according to Table 5 above. A “1” represents OUTPUT, and a “0” represents INPUT.
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For example, suppose all pins are set as INPUT pins, but only pin 2 and 1 have a 5 V logic high (1) signal, then only these two pins return “1” and the rest “0”. Sending GPIO? command will return: 3. The complete 8-bit binary would be 00000011. Pin 9 0 8 0 7 0 6 0 5 - 4 0 3 0 2 1 1 1 Note if there are output pins configured, those pins are ignored and will have the value “0”. OUTPUT To setup any of the 8 pins (except pin 5) as output pins, the remote command GPIO:DIR is used.
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(0) is 0 V. To set an output pin’s logic level, use the GPIO remote command. Again, all pins (except pin 5) are represented as 8-bits binary, according to Table 5 above. When using the GPIO command, the decimal representation of the 8-bits binary is used. Taking the example above with pins 8, 6, and 3 set as OUTPUT pins, if pins 8 and 3 are to be set with logic high (5 V) and pin 6 set with logic low (0 V), send the following command: GPIO 68 68 is used to represent 01000100 in binary.
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3.15 Connecting in Series and Parallel Some of the models in the series are capable of connecting to another model of the same kind in series or in parallel to double the voltage output or current output respectively. While these are possible for some models, some models cannot be connected in such a way. Please see the below list of warnings pertaining to such connections. WARNING: • Do not connect multiple units of models 9184 or 9185 in series or in parallel.
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4 Remote Operation 4.1 Interface Connection USB (Virtual COM) & RS-232 All models have a standard USB interface (virtual COM) that can be used for remote communication. Optionally, an RS232 interface card is available for remote control via RS-232 interface.
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Table 6- RS-232 Pin Out PIN 1 2 3 4 5 6 7 8 9 Description Transmit Data Receive Data GND - A straight pin-to-pin DB9female to DB9male serial cable is required for using RS-232 interface. Do not use a null modem or crossover DB9 serial cable. GPIB GPIB option is available when the supply is installed with the optional LAN/GPIB interface card. Each model can be configured with a GPIB address from 1 – 30.
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Ethernet (LAN) Ethernet (LAN) option is available when the supply is installed with the optional LAN/GPIB interface card. There are three ways to control the power supply via LAN interface: Web server, Telnet connection, Socket connection. Web Server There is an embedded web server GUI that can access the power supply via LAN interface using a java enabled web browser.
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4. A password is required to login and access any of the menu items on the page. DEFAULT ADMIN PASSWORD:123456 Menu Items This table describes each of the menu items available on the left frame of the web browser GUI. Table 7- Web Browser Menu Description Home Configuration Status Web Control Provides general information of the power supply: Model Number, Manufacturer, Short Description, MAC Address, IP Address, Firmware Version.
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Iset, Output state, Output On Timer.
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Telnet Connection The power supply can be connected via Ethernet (LAN) interface using Telnet client with the following port: Telnet Port: 5024 Windows XP Users 1. Open a command prompt window, which can be found by going to Start > All Programs > Accessories > Command Prompt. Alternatively, you can click on Start, select Run…, and type in cmd in the Open: input box. Click OK to open Command Prompt. 2. At the prompt, type in Telnet5024 where: is a space.
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Windows Vista/7 Users By default, Telnet client is not installed on the system. There are two ways to install it manually: 1. Open command prompt: a. Select Windows Start > All Programs > Accessories > Command Prompt b. Select Windows Start and type in cmd in the Search programs and files box and click on cmd.exe in the search list.
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2. Alternatively, go to Control Panel, select Programs, and select Turn Windows features on or off. Wait until the list gets populated. Then, Click the box next to Telnet Client. When finished, follow steps 1a or 1b to open Command Prompt and follow the same steps 2 and 3 from “Windows XP users” instructions above. Socket Connection Socket connection is available for communication via Ethernet (LAN) interface.
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Parameter Definitions Unless otherwise noted, the following table of parameter definitions applies to all supported remote commands. Commands that have [ ] around them are optional. For example, [SOURce] is not required for the SOURCE subsystem. Table 8- Parameter Definitions Parameter Description “ON” or “1”, “OFF” or 0 Data format for integers. Zero, positive, and negative integer numeric values are valid data. Data format for floating numeric representation.
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section do not have the termination character shown, but it is required for successful communication with the power supply. All returned strings after a query command will terminate with both and characters. For example, sending VOLT?command may return: 1.234 Common SCPI Commands The following commands are standard SCPI commands (1995) supported by the instrument.
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*SAV Description: Syntax: Example: Saves power supply settings into a memory location *SAV - Memory location number to save settings into. 0 – 9 are valid numbers. *SAV 2 Saves instrument settings into memory location 2. *RCL Description: Syntax: Example: Recalls power supply settings *RCL - Memory location number to recall settings from. 0 – 9 are valid numbers. *RCL 3 Recalls instrument settings from memory location 3.
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:ISET2 :SAV Output Subsystem OUTput :ALL :LIMit :VOLTage :VOLT2 :CURRent :CURR2 :MAX :VOLTage :VOLT2 :CURRent :CURR2 :MIN :VOLTage :VOLT2 :CURRent :CURR2 :SR :VOLTage :VOLT2 :CURRent :CURR2 :STATE? :PROTection :CLEar Channel 2 Output Subsystem (dual channel models only) OUT2 :STATe? Program Subsystem PROGram :CLEar :ALL :NEXT :REPeat :RUN :SAV :STEP :CURRent :CURR2 :ONTime 94
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:VOLTage :VOLT2 :TOTAl Protection Subsystem PROTection :CLEar :OCP :LEVel :OCP2 :LEVel :OVP :LEVel :OVP2 :LEVel Source Subsystem [SOURce] :CURRent :PROTection :LEVel :CURR2 :PROTection :LEVel :VOLTage :PROTection :LEVel :RANGe :VOLT2 :PROtection :LEVel System Subsystem SYStem :AVErage :BEEP :ERRor? :EXTernal :LEVel :GPIB :ADDRess :IP :ADDRess :CONFig :KEY :LOCK :LCD 95
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:BL :LED :LOW :CURR :OUTput :MODE :RECall :DEFault :REMote :SERies? :TRACK Timer Subsystem TIMER :HOUR :MINute :SECond GPIOSubsystem Note: The optional Analog/DIO interface card must be installed to use all GPIO commands. Table 9- Digital I/O Representation Pin# 9 8 7 6 Type I/O I/O I/O I/O Binary Bit # 7 6 5 4 Decimal 128 64 32 16 Representation I/O – Can be set to either input or output.
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GPIO Description: Syntax: Example: Configures digital I/O pins level to high (1) 5V or low (0) 0V for output pins. Nothing happens if the pin is an input. GPIO - Decimal representation of the binary value representing the GPIO pins. 0 – 255 are valid. GPIO 46 Sets pins 7, 4, 3, and 2 to logic high(1) 5 V output if these pins are configured as output pins using GPIO:DIRection command (See “Table 9” to convert the binary representation). Refer to section “3.
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Return String: Format: 237 Pins 9, 8, 7, 4, 3, and 1 are outputs and the rest are inputs. (See “Table 9” to convert the binary representation). Refer to section “3.13 Digital I/O” for more details. Measure Subsystem MEASure:CURRent? Description: Query: Return String: Format: Queries the measured current value MEAS:CURR? MEASure:CURRent? 1.234 The measured current is 1.234 A. MEASure:CURR2? Note: Description: Query: Return String: Format: For dual channel models only.
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Format: The measured current is 1.234 V. Memory Subsystem MEMory Description: Syntax: Example: Query: Return String: Format: Selects the memory location/Returns the selected memory location. MEMory - Memory location. 0 – 9 are valid. MEM 2 Selects memory location 2. MEM? 8 Currently selected memory location is 8.
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Example: Query: Return String: Format: - Voltage value. 0 – max. rated voltage value are valid. MEM:VSET2 4.132 Sets 4.132 V as voltage for the selected memory location. MEM:VSET2? 4.132 Voltage is currently set to 4.132 V in the selected memory location for channel 2.
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Format: MEMory:SAV Description: Syntax: Example: Saves the configured voltage and current (using MEM:VSET and MEM:ISET commands) values into the selected memory location (using MEM command). MEMory:SAV MEM:SAV Output Subsystem OUTput Description: Syntax: Example: Query: Return String: Format: Configure/Query the state of the output. OUTput OUTput? OUT 1 OUT ON Enables the output. For dual channel models, it enables output on channel 1.
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Example: Query: Return String: Format: OUTput:LIMit:VOLTage? - Voltage value. 0 – max. rated voltage value are valid. OUT:LIM:VOLT 70.123 Sets the voltage maximum limit to 70.123 V. OUT:LIM:VOLT? 70.123 OUTput:LIMit:VOLT2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the voltage maximum limit for channel 2. OUTput:LIMit:VOLT2 OUTput:LIMit:VOLT2? - Voltage value. 0 – max.
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OUTput:LIMit:CURR2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the current maximum limit for channel 2. OUTput:LIMit:CURR2 OUTput:LIMit:CURR2? - Current value. 0 – max. rated current value are valid. OUT:LIM:CURR 3.456 Sets the current maximum limit to 3.456 A. OUT:LIM:CURR? 3.456 OUTput:MAX:VOLTage Note: See OUTput:LIMit:VOLTage command. OUTput:MAX:VOLT2 Note: See OUTput:LIMit:VOLT2 command.
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Format: OUTput:MIN:VOLT2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the voltage minimum limit for channel 2. OUTput:MIN:VOLT2 OUTput:MIN:VOLT2? - Voltage value. Less than max. voltage set limit value are valid. OUT:MIN:VOLT2 0 Sets the voltage set maximum limit to 0 V for channel 2.
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Format: OUTput:SR:VOLTage Description: Syntax: Example: Query: Return String: Format: Configures/Queries the voltage slew rate in unit of V/ms. For dual channel models, this will configure the slew rate for channel 1. OUTput:SR:VOLTage OUTput:SR:VOLTage? - Voltage value. 0 – max. voltage slew rate value. See “Slew Rate Configuration” in section 3.5. OUT:SR:VOLT 7.000 Sets the voltage slew rate to 7.000 V/ms OUT:SR:VOLT? 7.
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Example: Query: Return String: Format: OUT:SR:CURR 1.000 Sets the current slew rate to 1.000 A/ms. OUT:SR:CURR? 1.000 OUTput:SR:CURR2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the current slew rate for channel 2. OUTput:SR:CURR2 OUTput:SR:CURR2? - Current value. 0 – max. current slew rate value. See “Slew Rate Configuration” in section 3.5. OUT:SR:CURR2 1.000 Sets the current slew rate to 1.000 A/ms.
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Format: ON or OFF OUT2:STATe? Description: Syntax: Query: Return String: Format: Queries the output mode for channel 2. OUT2:STATe? OUT2:STAT? CV CV or CC Program Subsystem The commands in this subsystem are for the program sequence function. Examples on how to use these commands to create sequences can be found in “4.3Sequence Programming”.
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PROGram:CLEar:ALL Description: Syntax: Example: Clears all programmed sequences stored in all 10 program locations. PROGram:CLEar:ALL PROG:CLE:ALL Clears all the programmed sequences in all 10 program locations. PROGram:NEXT Description: Syntax: Example: Query: Return String: Format: Configures/Queries the next program location’s sequence to run. PROGram:NEXT PROGram:NEXT? - 1 – 10 are valid program locations.
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PROGram:RUN Description: Syntax: Example: Query: Return String: Format: Configure/Query the state of the program. PROGram:RUN PROG:RUN? PROG:RUN 1 PROG:RUN ON Enables the programmed sequence to start. PROG:RUN? OFF Currently the selected program sequence is not running.
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PROGram:STEP:CURRent Description: Syntax: Example: Query: Return String: Format: Configures/Queries the current setting for the selected step (use PROGram:STEP command to select step). For dual channel models, this will be for channel 1. PROGram:STEP:CURRent PROGram:STEP:CURRent? - 0 – max. rated current. PROG:STEP:CURR 1.234 Set 1.234 A as current setting for the selected step in the program sequence. PROG:STEP:CURR? 1.
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Return String: Format: 0.050 PROGram:STEP:VOLTage Description: Syntax: Example: Query: Return String: Format: Configures/Queries the voltage setting for the selected step (use PROGram:STEP command to select step). For dual channel models, this will be for channel 1. PROGram:STEP:VOLTage PROGram:STEP:VOLTage? - 0 – max. rated voltage. PROG:STEP:VOLT 1.234 Set 1.234 V as voltage setting for the selected step in the program sequence. PROG:STEP:VOLT? 1.
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Query: Return String: Format: PROG:TOTA? 30 Currently the sequence will have 30 steps for setup. Protection Subsystem PROTection Note: See STATUS command in the next section. PROTection:CLEar Description: Syntax: Example: Clears/resets all latched protection (when protection is flagged/tripped) PROTection:CLEar PROT:CLE PROTection:OCP Description: Syntax: Example: Query: Return String: Format: Configure/Query the state of OCP (over current protection).
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Format: PROTection:OCP2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the state of OCP channel 2. PROTection:OCP2 PROT:OCP2? PROT:OCP2 1 PROT:OCP2 ON Enables OCP on channel 2. PROT:OCP2? OFF Currently OCP for channel 2 is disabled. ON or OFF PROTection:OCP2:LEVel Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only.
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Format: ON or OFF PROTection:OVP:LEVel Description: Syntax: Example: Query: Return String: Format: Configures/Queries the voltage level for OVP. PROTection:OVP:LEVel PROTection:OVP:LEVel? - 0 – max. rated voltage. PROT:OVP:LEV 20.000 Set 20.000 V as the OVP voltage level. PROT:OVP:LEV? 20.000 PROTection:OVP2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only.
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Source Subsystem [SOURce]:CURRent Description: Syntax: Example: Query: Return String: Format: Configures/Queries the ISET current setting. For dual channel models, use [SOURce]:CURR2 command for channel 2. [SOURce]:CURRent [SOURce]:CURRent? - 0 – max. rated current. SOUR:CURR 1.456 Set current to 1.456 A. SOUR:CURR? 1.456 [SOURce]:CURRent:PROTection Note: See PROTection:OCP command. [SOURce]:CURRent:PROTection:LEVel Note: See PROTection:OCP:LEVel command.
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[SOURce]:CURR2:PROTection Note: See PROTection:OCP2 command. [SOURce]:CURR2:PROTection:LEVel Note: See PROTection:OCP2:LEVel command. [SOURce]:VOLTage Description: Syntax: Example: Query: Return String: Format: Configures/Queries the VSET voltage setting. For dual channel models, use [SOURce]:VOLT2 command for channel 2. [SOURce]:VOLTage [SOURce]:VOLTage? - 0 – max. rated voltage. SOUR:VOLT 20.000 Set voltage to 20.000 V. SOUR:VOLT? 20.
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Return String: Format: LOW [SOURce]:VOLT2 Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries theVISET voltage setting for channel 2. [SOURce]:VOLT2 [SOURce]:VOLT2? - 0 – max. rated voltage. SOUR:VOLT2 20.000 Set voltage of channel 2 to 20.000 V. SOUR:VOLT2? 20.000 [SOURce]:VOLT2:PROTection Note: See PROTection:OVP2 command. [SOURce]:VOLT2:PROTection:LEVel Note: See PROTection:OVP2:LEVel command.
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SYStem:BEEP Description: Syntax: Configure/Query the state of the key sound. SYStem:BEEP SYStem:BEEP? SYS:BEEP 0 SYS:BEEP OFF Disables the key sound. SYS:BEEP? OFF Key sound is disabled. ON or OFF Example: Query: Return String: Format: SYStem:ERRor? Description: Syntax: Return Syntax: Query: Return String: Format: Queries the error from the error queue. SYStem:ERRor? - 0 – 4. Refer to their description in the table below. SYS:ERR? 0 No errors.
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SYStem:EXTernal Description: Syntax: Example: Query: Return String: Format: Configure/Query the state/type of the analog external control. SYStem:EXTernal SYStem:EXTernal? - 0/OFF, 1/VOLT, 2/RES SYS:EXT 1 SYS:EXT VOLT Set to use voltage source for external analog control SYS:EXT? 2 Currently set to resistance external control. SYStem:EXTernal:LEVel Description: Syntax: Example: Query: Return String: Format: Configure/Query voltage scale to use for external voltage control.
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SYStem:IP:ADDRess Description: Syntax: Example: Query: Return String: Format: Configure/Query the LAN IP address SYStem:IP:ADDRess SYStem:IP:ADDRess? - NR1.NR1.NR1.NR1. NR1 can be from 000 – 255. SYS:IP:ADDR 192.168.001.150 Sets the IP address to 192.168.1.150 SYS:IP:ADDR? 192.168.001.150 ... SYStem:IP:CONFig Description: Syntax: Example: Query: Return String: Format: Configure/Query the configuration of the IP.
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SYStem:LCD:BL Description: Syntax: Example: Query: Return String: Format: Configures/Queries the LCD backlight state SYStem:LCD:BL SYStem:LCD:BL? - 0/ON, 1/OFF1, 2/OFF5, 3/OFF10, 4/OFF30 (For Always ON, ON 1 minutes, ON 5 minutes, ON 10 minutes, ON 30 minutes respectively) SYS:LCD:BL Enables key lock. SYS:LCD:BL? ON ON or OFF SYStem:LED Description: Syntax: Example: Query: Return String: Format: Configures/Queries the state of LED test mode.
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SYStem:OUTput:MODE Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the state of the output mode. SYStem:OUTput:MODE SYStem:OUTput:MODE? - 0/MULTI or 1/SINGLE SYS:OUT:MODE 0 SYS:OUT:MODE MULTI Sets output mode to MULTI. SYS:OUT:MODE? MULTI SINGLE or MULTI SYStem:RECall:DEFault Description: Syntax: Example: Resets back to default factory settings.
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SYStem:TRACK Note: Description: Syntax: Example: Query: Return String: Format: For dual channel models only. Configures/Queries the state of tracking mode. SYStem:TRACK SYStem:TRACK? SYS:TRACK 1 SYS:TRACK ON Enables tracking mode. SYS:TRACK? ON ON or OFF Timer Subsystem TIMER Description: Syntax: Example: Query: Return String: Format: Configures/Queries the state of the output timer function. The timer starts once output is enabled.
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TIMER:MINute Description: Syntax: Example: Query: Return String: Format: Configures/Queries the output timer hours. TIMER:MINute TIMER:MINute? - 0 - 59 TIMER:MIN 40 Sets the output timer to 40 minutes. TIMER:MIN? 40 TIMER:SECond Description: Syntax: Example: Query: Return String: Format: Configures/Queries the output timer seconds. TIMER:SECond TIMER:SECond? - 0 – 59 TIMER:SEC 20 Sets the output timer to 20 seconds.
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ADDRess Description: Syntax: Example: Query: Return String: Format: Configures/Queries the GPIB address ADDRess
ADDRess?
- GPIB address. 0 – 30 are valid addresses. ADDR 10 Sets the GPIB address to 10. ADDR? 10 BEEP Description: Syntax: Example: Query: Return String: Format: Configures/Queries the key sound state BEEP BEEP? - ON or 1 to turn ON - OFF or 0 to turn OFF BEEP ON Turns on key beep.
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CURRent/CURR2 Note: Description: CURR2 command is for dual channel models only. Configures/Queries the ISET current setting. For dual channel models, use CURR2 command for channel 2. CURRent CURR2 CURRent? CURR2? - 0 – max. rated current output CURR2 1.234 Sets the second channel ISET current to 1.234 A on a dual channel model. CURR? 1.
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IOUT?/IOUT2? Note: Description: Syntax: Example: Return String: Format: IOUT2 command is for dual channel models only. Queries the measured/readback current output value. For dual channel models, use IOUT2 command for channel 2. IOUT? IOUT2? IOUT? 2.156 Output current measured is 2.156 A. ISET/ISET2 Description: Example: Format: This command is the same as CURRent/CURR2 command. See CURRent/CURR2 for details. ISET? ISET 1.
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OCP/OCP2 Note: Description: Syntax: Example: Query: Return String: Format: OCP2 command is for dual channel models only. Configures/Queries the over current protection state. For dual channel models, use OCP2 command for channel 2. OCP OCP2 OCP? OCP2? - ON or 1 to turn ON - OFF or 0 to turn OFF OCP2 ON Enables OCP for channel 2 on a dual channel model.
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OUT/OUT2 Note: Description: Syntax: Example: Query: Return String: Format: OUT2 command is for dual channel models only. Configures/Queries the output state. For dual channel models, use OUT2 command to configure/query channel 2 output state. OUT OUT2 OUT? OUT2? - ON or 1 to turn ON - OFF or 0 to turn OFF OUT 1 Turns ON (enables) the output OUT? OUT2? ON Output is enabled.
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OVP/OVP2 Note: Description: Syntax: Example: Query: Return String: Format: OVP2 command is for dual channel models only. Configures/Queries the over voltage protection state. For dual channel models, use OVP2 command for channel 2. OVP OVP2 OVP? OVP2? - ON or 1 to turn ON - OFF or 0 to turn OFF OVP2 ON Enables OVP for channel 2 on a dual channel model.
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STATUS? Description: Syntax: Example: Return String: Format: Queries the instrument status STATUS? STATUS? 000000 No OVP, OCP, OTP, and other failure or flagged status. Outputs are off, LCD backlight always ON, and output mode set to MULTI. Refer to the table and description below for details on the returned data. When STATUS?command is used, the power supply will return an ASCII string of 6 alphanumeric characters, which is a representation of 3-bytes data encoded in hex.
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Example 2: Return string: 00008C Byte 2: 0 Byte 1: 0 Byte 0: 8C 8C = 10001100 (bits 7 – bit 0) Representation: - Channel 1 OVP status is ON - Channel 1 output is ON - Channel 2 output is ON - LCD backlight is ALWAYS ON - Output mode is MULTI - No protection flag status (instrument is operating normally) TRACK Note: Description: Syntax: Example: Query: Return String: Format: This command is for dual channel models only. Configures/Queries the tracking mode state.
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VOLTage/VOLT2 Note: Description: Syntax: Example: Query: Return String: Format: VOLT2 command is for dual channel models only. Configures/Queries the VSET voltage setting. For dual channel models, use VOLT2 command for channel 2. VOLTage VOLT2 VOLTage? VOLT2? - 0 – max. rated voltage output VOLT2 12.000 Sets the second channel VSET voltage to 12.000 V on a dual channel model. VOLT? 12.
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4.3 Sequence Programming The power supply has the ability to store custom programmed sequences and run them, as described in “3.11Sequence Program Mode”. This section provides some examples of how to create some sequences using remote commands described in the previous section.
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PROG:STEP:VOLT 5 PROG:STEP:ONT 0.1 PROG:STEP 2 PROG:STEP:CURR 1 PROG:STEP:VOLT 10 PROG:STEP:ONT 0.1 PROG:STEP 3 PROG:STEP:CURR 1 PROG:STEP:VOLT 15 PROG:STEP:ONT 0.1 PROG:STEP 4 PROG:STEP:CURR 1 PROG:STEP:VOLT 20 PROG:STEP:ONT 0.1 PROG:STEP 5 PROG:STEP:CURR 1 PROG:STEP:VOLT 15 PROG:STEP:ONT 0.1 PROG:STEP 6 PROG:STEP:CURR 1 OG S O 10 PROG:STEP:VOLT 10 PROG:STEP:ONT 0.1 PROG:STEP 7 PROG:STEP:CURR 1 PROG:STEP:VOLT 5 PROG:STEP:ONT 0.1 PROG:STEP 8 PROG:STEP:CURR 1 PROG:STEP:VOLT 0 PROG:STEP:ONT 0.
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PROG 1 PROG:RUN ON Select program 1 Use RUN ON command to execute Example 2: To create an output sequence like above, send the following list of commands in order: PROG 2 PROG:CLE PROG:REP 0 PROG:TOTA 8 PROG:STEP 1 PROG:STEP:CURR 2 PROG:STEP:VOLT 20 PROG:STEP:ONT 0.5 PROG:STEP 2 PROG:STEP:CURR 2 PROG:STEP:VOLT 15 PROG:STEP:ONT 0.5 PROG:STEP 3 PROG:STEP:CURR 2 PROG:STEP:VOLT 20 PROG:STEP:ONT 0.
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PROG:STEP:ONT 0.5 PROG:STEP 5 PROG:STEP:CURR 1 PROG:STEP:VOLT 20 PROG:STEP:ONT 0.5 PROG:STEP 6 PROG:STEP:CURR 2 PROG:STEP:VOLT 5 PROG:STEP:ONT 0.5 PROG:STEP 7 PROG:STEP:CURR 2 PROG:STEP:VOLT 20 PROG:STEP:ONT 0.5 PROG:STEP 8 PROG:STEP:CURR 2 PROG:STEP:VOLT 0 PROG:STEP:ONT 0.
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waveform sequence shown above. PROG 1 Select program 1 PROG:NEXT 2 Change the NEXT command from NEXT 0 to NEXT 2 PROG:SAV After edit is complete use Save command to store changes in the hardware PROG 1 Select program 1 PROG:RUN ON Use RUN ON command to execute 4.4 Multi Unit Programming The instrument can be connected together with multiple units via RS-485 interface, as described in section “3.
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The following describes the specific commands that may be used to communicate with each connected instrument with this specific setup. Remote Commands via USB The following lists all the available commands to control multiple power supplies with the multi unit programming configuration illustrated in “Figure 30”. For all configuration commands (except for commands listed under Synchronous Control Commands section), the instrument will return a string “OK” to indicate command sent successfully.
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CADR Note: Description: Syntax: Example: This command must be used first prior to any other commands to control individually addressed power supplies with RS-485 connection. Selects the address of the power supply to be controlled. CADR

- 1 – 31 are valid numbers. CADR 5 This will select power supply with address = 5. CCLS Description: Syntax: Clears the status of the selected power supply. CCLS CRST Description: Syntax: Resets the selected power supply to a known state.
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Return String: 123D19238 Serial number is 123D19238. CST? Description: Query: Queries the status of the selected power supply. This command functions the same as STATUS? command, however this is used in a multi unit programming setup for the selected power supply. CST? CCLR Description: Syntax: Clears the protection flag/trip of the selected power supply. CCLR Output Control Command This set of commands controls the outputs of the selected instrument (based on their address).
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COCP/COCP2 CMODE?/CMODE2? CPV/CPV2 Description: Example: Configures/Queries the VSET voltage setting of the selected power supply. See VOLTage/VOLT2command for similar syntax.CPV2 is for dual channel models only. CPV 15.698 Sets the selected power supply’s VSET voltage setting to 15.698 V. CPV2? Queries the selected power supply’s second channel VSET voltage setting. CMV?/CMV2? Description: Query: Return String: Queries the measured/readback voltage output value of the selected power supply.
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CMC?/CMC2? Description: Query: Return String: Queries the measured/readback current output value of the selected power supply. See IOUT?/IOUT2? Command for similar syntax.CMC2?is for dual channel models only. CMC? 1.234 A The selected power supply has a measured output current of 1.234 A. CDVC?/CDVC2? Description: Example: Return String: Format: Queries the display voltage and current of the selected power supply. CDVC2? Is for dual channel models only.
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COV/COV2 Description: Example: Configures/Queries the over voltage protection value of the selected power supply. See OVSET/OVSET2 command for similar syntax. COV2 is for dual channel models only. COV 70.000 Sets the selected power supply’s OVP value to 70.000V. COV2? Queries the selected power supply’s second channel OVP value. COVP/COVP2 Description: Example: Configures/Queries the over voltage protection state of the selected power supply. See OVP/OVP2 command for similar syntax.
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COCP/COCP2 Description: Example: Configures/Queries the over current protection state of the selected power supply. See OCP/OCP2 command for similar syntax. COCP2 is for dual channel models only. COCP ON Sets the selected power supply’s OCP state to ON. COCP2? Queries the selected power supply’s second channel OCP state. CMODE?/CMODE2? Description: Query: Return String: Format: Queries the output mode (CV or CC) of the selected power supply. CMODE2? Is for dual channel models only.
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Return String: OK - Enable both channels’ output for a dual channel supply with address 2 CADR 2 COUTA ON Return String: OK - Query the measured/readback current output of power supply with address 6 CADR 6 CMC? Synchronous Control Command This set of commands can be used to control all the power supplies connected in the RS-485 chain at once. Note that these commands will not return an “OK” string upon making a configuration.
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GOCP/GOCP2 GRST Description: Syntax: Resets all the power supplies connected in the chain to a known state. GRST GCLS Description: Syntax: Clears the status of all the power supplies connected in the chain. GCLS GCLR Description: Syntax: Clears the protection flag/trip of all the power supplies connected in the chain. GCLR GPV/GPV2 Description: Example: Configures/Queries the VSET voltage setting of all the power supplies connected in the chain. See VOLTage/VOLT2 command for similar syntax.
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GOUT/GOUT2 Description: Example: Configures/Queries the output state of all the power supplies in the chain. See OUT/OUT2 command for similar syntax. GOUT2 is for dual channel models only. GOUT ON Sets all the power supplies’ output to ON. GOUTA Note: Description: Example: For dual channel models only. Configures the output state of both channels of the selected power supply. GOUTA ON Enables both channel outputs of all the dual channel power supplies in the chain.
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Example: GOC 3.000 Sets all the power supplies’ OCP value to 3.000 A. GOCP/GOCP2 Description: Configures/Queries the over current protection state of all the power supplies connected in the chain. See OCP/OCP2 command for similar syntax. GOCP2 is for dual channel models only. GOCP ON Sets all the power supplies’ OCP state to ON. Example: Error List Using any of the commands for multi unit programming for configuration, a response string is returned.
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5 Troubleshooting Guide Below are some frequently asked questions and answers. Please check if any applies to your power supply before contacting B&K Precision. General Q: I cannot power up the power supply. - Check that the power cord is securely connected to the AC input and there is live power from your electrical AC outlet. - Check that the correct fuse is inserted into the fuse box in the rear panel, and the line voltage switch is selected to the appropriate voltage. See section “2.1” and “2.
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under test), which causes a drop in voltage. To minimize this drop, use remote sense terminals to compensate and output a more accurate voltage to the DUT. Q: On my dual channel power supply, how do I set a timer output for each channel? - The two channels are dependent on the same timer function. Therefore, when used it will affect both outputs. Q: I want to use the external analog control from the DIO/Analog interface card. However, I only want to adjust voltage.
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Remote Control Q: I am trying to send the commands over USB/RS232, but it does not seem to respond. - Check that you are sending ASCII strings that are terminated with a CR (carriage return) and LF (linefeed) character. - For USB, check that the correct USB drivers are installed and that you are communicating with the right COM port, which can be verified under “Device Manager” in Windows. - For USB and RS232, be sure to use 57600 baudrate, no parity, 8 data bits, 1 stop bit, no flow control setting.
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6 Specifications Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 °C ± 5 °C. Specifications are subject to change without notice. Model 9171 9172 Low Range 0–10V/0 -10A 0–35V/0–3A High Range 0–70V/0 – 1.
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Model 9181 9182 Output Rating Low Range 0–18V/0–8A 0–10V/0–20A High Range 0–36V/0–4A 0–20V/0–10A Output Channel 1 Output Power 144W 200W 330VA 680VA General Maximum Rated Input Power Weight 210mmx87mmx414m 210mmx130.5mmx4 m 15mm 7.7kg 12kg Model 9183 Dimension(W*H*D) Output Rating Low Range 0–35V/0–6A High Range 0–70V/0–3A Output Channel 1 Output Power 210W General Maximum Rated Input Power Dimension(W*H*D) 510VA Weight 11kg 210mmx130.
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General Maximum Rated Input Power Dimension(W*H*D) 210mmx130.5mmx415mm Weight 10.5kg 510VA Note: The specifications below apply to all models in the series. Some specifications have model number(s) in ( ) to indicate which model(s) they apply to. Line Regulation ≤0.01%+1mV Voltage ≤ 0.01%+250uA Current 1 Load Regulation Voltage ≤ 0.01%+1mV Current ≤ 0.01%+250uA Ripple and Noise (20Hz-20MHz) Normal Mode Voltage ≤ 0.35mVrms/≤ 3mVpp (9171,9173,9181,9182) ≤ 0.5mVrms/≤ 5mVpp (9172,9174,9183) ≤ 1.
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Programming and Readback Accuracy ±(% output+offset) ≤ 0.05%+5mV(9171,9173,9181, 9182) ≤ 0.05%+10mV(9172,9174,9183) ≤ 0.05%+50 mV(9184) ≤ 0.05%+100mV(9185) ≤ 0.1%+2mA (9171,9173,9181,9183) ≤ 0.1%+1mA (9172,9174,9184) ≤ 0.1%+5 mA (9182) ≤ 0.1%+0.1 mA (9185) Voltage Current Temperature Coefficient per °C ±(% output+offset) Voltage ≤ 0.005%+1mV ≤ 0.005%+10 mV (9184) ≤ 0.005 %+20 mV (9185) Current ≤ 0.01%+3mA Stability (8 hrs) ±(% output+offset) ≤ 0.02%+2mV ≤ 0.02 %+10 mV(9184) ≤ 0.
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Rising Time at No Load Falling Time at Full Load ≤ 30mS (9184) ≤ 40mS (9185) ≤ 8mS (9171,9173,9181,9182) ≤ 10mS (9172,9174,9183) ≤ 30mS (9184) ≤ 40mS (9185) ≤ 8mS (9171,9173,9181,9182) ≤ 10mS (9172,9174,9183) ≤ 30mS (9184) ≤ 40mS (9185) Falling Time at No Load ≤ 250mS Standard Interface USB 5 Optional Interface Cards LAN/GPIB Card, Digital I/O and Analog Control Cards (1CH and 2CH), RS485 Card, RS232 Card General Power Requirements 115/230 VAC± 10%, 47Hz - 63Hz Operating Temperature 0°C- 40°C S
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7 Calibration Access Calibration Menu Follow the steps below to access the calibration menu. 1. Press Menu , then 7 to enter CALIBRATION. The following screen will be displayed: PLEASE KEYIN PASSWORD : _ 2. Enter the password: 13579 with the numeric keypad. 3. There will be two options. 1. CURRENT CALIBRATION, and 2. VOLTAGE CALIBRATION, as shown in the screen below. A third option 3. EXT. INPUT CALIB is available if the supply has an optional DIO/Analog Interface Card installed. 1.
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Requirements Before calibrating, the “+”output terminal must be connected to the “+S” terminal and the “–”output terminal must be connected to the “–S” terminal using the included shorting bars/pins.
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6 ½ Digit DMM Figure 31 - Current Calibration Setup 160
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6 ½ Digit DMM Figure 32- Current Calibration with Shunt Follow the steps below to proceed with current calibration: 1. From the calibration menu, press 1 to enter CURRENT CALIBRATION. The following screen will be shown. CURRENT CALIBRATION CH: 1 IL Set = X . XXXXA Read = XXX IML Set = X . XXXXA Read = XXX 2. Select the channel (for dual channel models), then press Enter . The calibration process will automatically start. 3. The power supply will output a pre-set current to the DMM.
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IL Set = __.____A on the display. Press Enter to proceed to IML. If current shunt is used for the calibration, divide the DMM readings (in DCV) by the resistance (Rs) of the shunt. The result should be DCV/Rs. Enter this current result into IL. 4. The power supply will then pre-set another current value for IML. Repeat the same process in step 3. Once finished, repeat the same process for IMH and IH, as shown below. IMH Set = X . XXXXA Read = XXXXX IH Set = X .
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Voltage Calibration - Use the setup diagram shown in Figure 34 below for voltage calibration. Connect the rear output terminals of the power supply to the DMM. 6 ½ Digit DMM Figure 33- Voltage Calibration Setup Follow the steps below to proceed with current calibration: 1. From the calibration menu, press 2 to enter VOLTAGE CALIBRATION. The following screen will be shown. VOLTAGE CALIBRATION CH: 1 VL Set = X . XXXXV Read = XXXX VML Set = XX . XXXXV Read = XXXXX 2.
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3. The power supply will output a pre-set voltage to the DMM. Wait for the DMM reading to settle, then enter it into where it shows VL Set = __.____V on the display. Press Enter to proceed to the next setp. 4. The power supply will then pre-set another voltage value for VML. Repeat the same process in step 3. Once finished, repeat the same process for VMH and VH, as shown below. VMH Set = XX . XXXXV Read = XXXXX VH Set = XX . XXXXV Read = XXXXX CALIB OVP Lo = Start CALIB OVP Hi = Start 5.
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External Analog Input Calibration This calibration option is only available if the optional DIO/Analog Interface Card is installed in the power supply. Follow the steps below to proceed with external analog input calibration. 1. From the calibration menu, press 3 to enter EXT. INPUT CALIB. If the single channel DIO/Analog Interface Card is installed, then Figure 35 will be shown. If the dual channel version is installed, Figure 36 will be displayed. Calib EXT . Lo Volt = 1 . 000 V Calib EXT .
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Calib EXT . Lo Volt = 1 . 000 V Calib EXT . Lo Volt = 9 . 000 V CH 1 EXT . VOLT Res = Start CH 1 EXT . CURR Res = CH 2 EXT . VOLT Res = CH 2 EXT . CURR Res = Start Start Start Figure 35- Dual Channel External Analog Input Calibration 2. Connect the 10VDC source to the analog inputs on the DIO/Analog Interface Card as shown in Figure 37 for single channel. Figure 36- Single Channel Analog Control Calibration Setup 3. Set the DC source to output 1.
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5. To begin calibration with the external resistor, remove the DC source and connect the precision resistor to the control card, as shown in Figure 38(right) below. Figure 37- External Resistance Control Calibration setup (left) Current (right) Voltage 6. The supply will display CH1 EXT. VOLT Res. Press Enter to calibrate. 7. Once finished, CH1 EXT. CURR Res will be selected. Connect the precision resistor as shown in Figure 38(left). Press Enter to proceed with the calibration. 8.
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Figure 38- Dual Channel External Analog Voltage Input Calibration Setup 10. (Dual channel) For the external resistor calibration, connect like for channel 1 for current and voltage, and connect like for channel 2 for current and voltage. 11. Once finished, the supply will return to the calibration menu. To exit and go back to the main display, press Esc twice.
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Figure 40- Channel 2 Setup for External Analog Resistor Input Calibration 169
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Index AC input, 18 OVP, 66 Calibration, 158 Power-On State, 70 CHAIN SETTING, 38 Rackmount, 9 Current Limit, 44 rear output terminals, 21 Digital I/O, 77 Recall, 70 Dual Channel, 49, 55 Remote Commands, 91 Enable/Disable Output, 49 Remote Sense, 57 errors, 81 Resistance, 74 Ethernet (LAN), 34, 88 RMT, 32 External Analog Control, 72 RS-232, 35 Factory Default, 41 RS-485, 36, 138 Firmware Version, 27 Save, 68 Fuse, 18 SCPI, 92 GPIB, 34 Self Test, 23 GPIO:DIR, 79 Sequence Program,
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SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #.
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LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three year from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt. To obtain warranty coverage in the U.S.A.
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