User Manual SDM3055 Digital Multimeter UM06035-E02A 2014 SIGLENT TECHNOLOGIES CO.
SIGLENT Copyright and Statement Copyright SIGLENT TECHNOLOGIES CO., LTD. All rights reserved. Trademark Information SIGLENT is registered trademark of SIGLENT TECHNOLOGIES CO., LTD. Statement ● SIGLENT products are protected by patent laws in and outside of the P.R. China. ● SIGLENT reserves the rights to change the specification and price. ● Information in this publication replaces all previous corresponding published material.
SIGLENT General Safety Summary Read the following safety precautions carefully to avoid any personal injuries or damages to the instrument and any products connected to it. To avoid potential hazards, please use the instrument as specified. Use proper power line. It’s only allowed to use the special power line which is approved by local state. Ground the instrument. The instrument is grounded through the protective terra conductor of the power line.
SIGLENT Antistatic protection. Static electricity will cause damages to the instrument, so test in antistatic areas as far as possible. Ground its inner and outer conductors to release the static electricity temporarily before connecting the cable to the instrument. Keep good ventilation. Improper ventilation will cause the rise of the instrument’s temperature. Keep good ventilation and check the vent and fan regularly when using it. Keep the surface of the instrument clean and dry.
SIGLENT 3. Current input (I) terminal I and LO terminals are used for current measurement. The maximum current which go through the I terminal is limited to 10A by the fuse on the back panel. NOTE: Voltage on the current input terminal corresponds to voltage on LO terminal. To keep good protection, only use the fuse of specified type and level to replace this fuse.
SIGLENT Safety Terms and Symbols Terms in this manual. Terms may appear in this manual. WARNING: Warning statements indicate the conditions and behaviors that could result in injury or loss of life. CAUTION: Caution statements indicate the conditions and behaviors that could result in damage to this product or other properties. CAT I (1000V): IEC Measurement Category I. The highest measurable voltage is 1000Vpk in the HI-LO terminal. properties. CAT II (600V): IEC Measurement Category II.
SIGLENT Introduction of SDM3055 SDM3055 is a 5½ dual-display instrument designed with 5½ digits readings resolution and dual-display, especially fitting to the needs of high-precision, multifunction, and automation measurements. It realized a combination of basic measurement functions, multiple math functions, and display functions, etc. SDM3055 holds a 4.3 inch color TFT-LCD display screen. Its clear keyboard layout and operation hints make it easier and agility to use.
SIGLENT Abstract The manual mainly introduces corresponding information of operating the SDM3055 Digital Multimeter. It contains these chapters: Chapter 1 Quick Start Guide you to prepare the SDM3055 Digital Multimeter and know about the Front/Back panel and user interface. Chapter 2 Function and Operation Introduce the functions and operations of SDM3055 in details. Chapter 3 Application Examples Introduce you how to use strong measurement functions of this instrument easily through some examples.
SIGLENT Content Copyright and Statement .............................................................................. II General Safety Summary............................................................................... II Safety Terms and Symbols .......................................................................... V Introduction of SDM3055 ............................................................................. VI Abstract ....................................................................
SIGLENT Auto Trigger ..................................................................................... 57 Single Trigger .................................................................................. 58 External Trigger ............................................................................... 59 Help System ........................................................................................... 60 Math Function ...............................................................................
SIGLENT Chapter 1 Quick Start General Inspection Handle Adjustment The Front Panel The Back Panel To Connect Power Line User Interface To Use Safety Lock SDM3055 Digital Multimeter 1
SIGLENT General Inspection 1. Inspect the shipping container. Please keep the damaged container or cushioning material until the contents of the shipment have been checked completely and the instrument has passed the electrical and mechanical test. Damages of the instrument caused by the shipment will be compensated by the shipper or carrier. SIGLENT will not be responsible for the free repair or replacement. 2. Inspect the instrument.
SIGLENT To adjust the Handle Adjust the handle position of SDM3055 properly to place the instrument stably so that users can manipulate and observe the display better. Please grip the handle by the two sides and pull it outward. Then rotate the handle to the appropriate position. Please operate as the following diagram.
SIGLENT Front Panel SDM3055 Digital Multimeter provides users with brief and clear front panel. These control buttons are group by logic and users only need choose corresponding buttons to carry out basic operations, as shown in Diagram 1-4.
SIGLENT Back Panel SDM3055 Digital Multimeter’s Back Panel provides users with abundant interfaces, including USB Device、USB Host、LAN and GPIB（Only for SDM3055A）, as shown in the following diagram.
SIGLENT Power On Please power on the instrument as the following steps: 1. Adjust AC Voltage Selector to 110 (100~120V, 45~440Hz, AC) or 220 (200~240V, 50/60Hz, AC) in accordance with power standards in your country; 2. Connect the instrument to AC supply via power cord supplied by SIGLENT; 3. The power indicator light on the front panel will glitter slowly; 4. Press the power key on the front panel, the instrument will be started a few seconds later.
SIGLENT User Interface Single Display： Trigger Mode Main Display Function Reading Display Softkey Menu Measurement Range Unit Diagram 1- 6 Single Display Interface Dual-Display： Main Display Function Main Display Vice-display Diagram 1-7 User Interface SDM3055 Digital Multimeter 7
SIGLENT Chapter 2 Function and Operation To Measure DC Voltage / Current To Measure AC Voltage / Current To Measure 2-Wire / 4-Wire Resistance To Measure Frequency / Capacitance To Test Continuity / Diode To Measure Temperature / Optional Multiple Scan Card To use Dual-display Function or Set Up the Utility Acquire Function or Help System Math Function or Display Function Run / Stop Single Trigger / Hold Measurement Function To Switch Functions or Return to
SIGLENT To Select Measurement Range The Multimeter has two kinds of modes of selecting measurement range: “Auto” and “Manual”. It can select appropriate range according to the signals input in Auto mode, which is very convenient for users. While in Manual mode, you can obtain higher reading precision. Range selection keys are on the right side of the front panel as the following diagram.
SIGLENT Diagram 2- 2 Range selection menus Explanations: 1. When the input signal is beyond the current scope of the measurement range, the Multimeter will show “overload”. 2. Range option will turn back to default setting “Auto” after restarting and remote reset. 3. Users are suggested to select “Auto” range so as to protect the instrument against damage and get exact data as much as possible when it’s hard to predict the range of measurement. 4.
SIGLENT To Select Measurement Speed The instrument provides three types of measurement rate: 5 reading/s, 50 reading/s and 150 reading/s. 5 reading/s belongs to “Slow” rate; 50 reading/s belongs to “Middle” rate; 150 reading/s belongs to “Fast” rate. Measurement speed can be controlled by softkey menu. Press 【Speed】 and then press 【Slow】,【Middle】or【Fast】to choose measurement speed. Diagram 2- 3 Range selection menu Explanations: 1.
SIGLENT Basic Measurement Functions SDM3055 Digital Multimeters have following basic functions: To Measure DC Voltage To Measure AC Voltage To Measure DC Current To Measure AC Current To Measure 2/4-Wire Resistance To Measure Capacitance To Test Continuity To Test Diode To Measure Frequency or Period To Measure Temperature 12 SDM3055 Digital Multimeter
SIGLENT To Measure DC Voltage The Multimeter enables to measure DC Voltage up to 1000V. The method to connect and measure DC Voltage will be introduced in details as the following steps. (NOTE: DC Voltage is always the selected function when the Multimeter is turned on) Operating Steps: 1. Press on the front panel to enter the DC Voltage measurement interface, as shown in Diagram 2- 4. Diagram 2- 4 DC Voltage Measurement Interface 2.
SIGLENT 3. Choose a proper voltage range according to the measured circuit. Table 2- 1 Measurement Characteristics of DC Voltage Ranges* Input Protection Configurable 200mV、2V、20V、200V、1000V 1000V on all ranges（HI terminal） Range, DC input impedance, Rel NOTE*: All the ranges enable to obtain 20% value higher than original except 1000V. Besides, both Manual and Auto are available for setting every range.
SIGLENT To Measure DC Current The Multimeter enables to measure DC Current up to 10A. The method to connect and measure DC Current will be introduced in details as the following steps. Operating Steps: 1. Press and on the front panel to enter the DC Current measurement interface, as shown in Diagram 2- 6. Diagram 2- 6 DC Voltage Measurement Interface 2. Connect the red lead to terminal Input-I and black lead to terminal Input-LO as the following diagram.
SIGLENT 3. Choose a proper current range according to the measured circuit. Table 2- 2 Measurement Characteristics of DC Current Ranges* Input Protection Configurable 200μA、2mA、20mA、200mA、2A、10A 10A(back panel), 20A(inside the instrument) Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original except 10A. Besides, both Manual and Auto are available for setting every range. 4. Set AC Filter function. Press 【Filter】to open or close the AC Filter. 5.
SIGLENT To Measure AC Voltage The Multimeter enables to measure AC Voltage up to 750V. The method to connect and measure DC Voltage will be introduced in details as the following steps. Operating Steps: 1. Press on the front panel to enter the AC Voltage measurement interface, as shown in Diagram 2- 8. Diagram 2- 8 AC Voltage Measurement Interface 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as the following diagram.
SIGLENT 3. Choose a proper voltage range according to the measured circuit. Table 2- 3 Measurement Characteristics of AC Voltage Ranges* Input Protection Configurable 200mV、2V、20V、200V、750V 750Vrms on all ranges（HI terminal） Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original except 750V. Besides, both Manual and Auto are available for setting every range. When inputting range is higher than 750V at 750V Level, “overload” will be shown on the screen.
SIGLENT To Measure AC Current The Multimeter enables to measure AC Current up to 10A. The method to connect and measure AC Current will be introduced in details as the following steps. Operating Steps: 1. Press and on the front panel to enter the AC Current measurement interface, as shown in Diagram 2- 11. Diagram 2- 11 AC Voltage Measurement Interface 2. Connect the red lead to terminal Input-I and black lead to terminal Input-LO as the following diagram.
SIGLENT 3. Choose a proper current range according to the measured circuit. Table 2- 4 Measurement Characteristics of AC Current Ranges* 200μA、2mA、20mA、200mA、2A、10A Input Protection 10A(back panel), 250V(fuse), 20A(inside the instrument) Configurable Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original except 10A. Besides, both Manual and Auto are available for setting every range. 4. Set relative value (Optional operation).
SIGLENT To Measure 2-Wire/4-Wire Resistance The Multimeter enables to measure 2-Wire Resistance and 4-Wire Resistance. The method to connect and measure 2-Wire/4-Wire Resistance will be introduced in details separately. 2-Wire Resistance Operating Steps: 1. Press on the front panel to enter the 2-Wire Resistance measurement interface, as shown in Diagram 2- 13. Diagram 2- 13 2-Wire Resistance Measurement Interface 2.
SIGLENT 3. Choose a proper resistance range according to the scope. Table 2- 5 Measurement Characteristics of 2-Wire Resistance Ranges* Open-circuit Voltage 200μA、2mA、20mA、200mA、2A、10A <8V Input Protection 1000V on every range (HI terminal) Configurable Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original. Besides, both Manual and Auto are available for setting every range. 4. Set relative value (Optional operation). Press 【Rel】to open or close Relative math function.
SIGLENT 4-Wire Resistance Operating Steps: 1. Press and on the front panel to enter the 4-Wire Resistance measurement interface, as shown in Diagram 2- 14. Diagram 2- 15 4-Wire Resistance Measurement Interface 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as the following diagram.
SIGLENT 3. Choose a proper resistance range according to the scope. Table 2- 6 Measurement Characteristics of 4-Wire Resistance Ranges* Open-circuit Voltage 200Ω、2kΩ、20kΩ、200kΩ、2MΩ、10MΩ、100MΩ <8V Input Protection (1) 1000V on each range (HI terminal) (2) 200V on each range (HI Sense, LO Sense) Configurable Parameters Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original. Besides, both Manual and Auto are available for setting every range. 4.
SIGLENT To Measure Capacitance The Multimeter enables to measure Capacitance up to 1000μF. The method to connect and measure Capacitance will be introduced in details as the following steps. Operating Steps: 1. Press on the front panel to enter the Capacitance measurement interface, as shown in Diagram 2- 16. Diagram 2- 17 Capacitance Measurement Interface 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as the following diagram.
SIGLENT 3. Choose a proper capacitance range according to the measured circuit. Table 2- 7 Measurement Characteristics of Capacitance Ranges* 2nF、20nF、200nF、2μF、200μF、200μF、10000μF Input Protection 1000V on all ranges (HI terminal) Configurable Parameters Range, Rel NOTE*: All the ranges enable to obtain 20% value higher than original. Besides, both Manual and Auto are available for setting every range. 4. Set relative value (Optional operation). Press 【Rel】to open or close Relative math function.
SIGLENT To Measure Frequency or Period The Frequency or Period of a signal could be obtained by Dual-display Function during measuring its voltage or current or by the function button on the front panel. The method to connect and measure Frequency or Period will be introduced in details as the following steps. To Measure Frequency Operating Steps: 1. Press and on the front panel to enter the Frequency measurement interface.
SIGLENT 3. Choose a proper voltage range according to the measured circuit. Table 2- 8 Measurement Characteristics of Frequency Ranges Measurement Range Input Protection Configurable 200mV, 2V, 20V, 200V, 750V 20Hz ~ 1MHz 750Vrms on all ranges (HI terminal) Rel 4. Set relative value (Optional operation). Press 【Rel】to open or close Relative math function.
SIGLENT To Measure Period Operating Steps: 1. Press and on the front panel and select 【Period】to enter the Period measurement interface. The lower right corner of the screen shows the unit of Period, as shown in Diagram 2- 21. Diagram 2- 21 Period Measurement Interface 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as the following diagram. Diagram 2- 22 Sketch Map for Measuring Period 3. Choose a proper voltage range according to the measured circuit.
SIGLENT 4. Set relative value (Optional operation). Press 【Rel】to open or close Relative math function. When it is open, the reading displayed is a relative value which comes from the result of actual measurement value subtracts the value that has been set. (Please refer to “ Math Functions” in Chapter 2 to know about the details.) 5. Read measurement result. Period measurement is fixed at “Slow” rate. Therefore, you can’t adjust the reading rate while reading the result. 6. View history data.
SIGLENT To Test Continuity Continuity test uses double leads method to measure the resistance of the measured circuit via about 0.5mA current. When the measured resistance in circuit is lower than the selected one, it is considered being connected with instrument. The method to test Continuity will be introduced in details as the following steps. Operating Steps: 1. Press on the front panel to enter the Continuity test interface, as shown in Diagram 2- 23.
SIGLENT 3. Set the Short-circuit resistance. The default value is set as 50Ω before leaving factory. The value can be changed by using direction keys. You also can execute the Continuity measurement directly without modification. Table 2- 10 Measurement Characteristics of Continuity Test Current Ranges* Open-circuit Voltage 1mA Fixed at 2kΩ <8V Input Protection 1000V on all ranges (HI terminal) Beep Condition 0≤Rtesting≤Short-circuit impedance 1Ω≤Short-circuit impedance≤2kΩ 4.
SIGLENT To Test Diode If input voltage is under +0.7V (about 1.4kΩ), the Beeper will beep one time. If input voltage is under 50mV (about 100Ω) the Beeper will beep persistently. The method to test Diode will be introduced in details as the following steps. Operating Steps: 1. Press and on the front panel to enter the Diode test interface, as shown in Diagram 2- 25. Diagram 2- 25 Diode Test Interface 2.
SIGLENT 3. Set the Beeper function. Press 【Beeper】to turn on or off the Beeper. If the circuit is continuous, the nstrument will beep once when the Beeper is turned on. Table 2- 11 Characteristics of Checking Diodes Test Current Ranges* Open-circuit Voltage 1mA Fixed at 2V <8V Input Protection 1000V (HI terminal) Beep Condition 0.1V≤V measured≤2.0V 4. Read measurement result. 5. Reverse the probes and measure the voltage in the diode once more.
SIGLENT To Measure Temperature The Multimeter supports for two types of temperature sensor: TC and RTD. The method to connect and measure Temperature will be introduced in details as the following steps. Operating Steps: 1. Press on the front panel to enter the Temperature measurement interface, as shown in Diagram 2- 27. Diagram 2- 27 Temperature Measurement Interface 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as the following diagram.
SIGLENT Diagram 2- 29 Load a Configuration File 4. Press 【Define】to view the configuration, as shown in the following diagram: Diagram 2- 30 Configuration of the Sensor 5. Press 【Display】to choose a display mode. The Multimeter supports three display modes: Temperature Value, Measured Value and All.
SIGLENT Press 【All】, the measured value will be shown on the Vice display and the corresponding value will be shown on the Main display at the same time, which is convenient for users to observe temperature and voltage values. Diagram 2- 32 Show Temperature And Voltage Values 6. Press 【Units】to choose the unit of temperature. The Multimeter supports three units: °C 、 °F 、 K. Diagram 2- 33 Unit Selection Interface 7. Set relative value (Optional operation).
SIGLENT Measurement Parameters The parameters have been configured before the Multimeter leaving factory. Users can either measure directly or modify them to meet your own requirements. AC Filter AC Filter is applicable for DC Voltage and DC Current measurement. When DC Voltage or DC Current function is selected, press 【Filter】 to open the filter, as shown in the following diagram. If AC component existing in inputted DC signal, it can be filtered by AC Filter so as to make the data more exactly.
SIGLENT DC Input Impedance DC input impedance is only applicable for DC voltage measurement. When DC Voltage function is selected, press【Range】 and select 【200mV】 or 【2V】 to show the menu【Input Z】, as the following diagram shows. Diagram 2- 35 Choose DC Input Impedance The options of input impedance for DC voltage measurements are 10MΩ and 10GΩ. 10MΩ impedance is general for the Multimeter, but for 200mV and 2V manual ranges, 10GΩ should be chosen for better result.
SIGLENT Short-circuit Resistance Set up the short-circuit resistance value in the short-circuit test menu. When the measured resistance is lower than the short-circuit resistance, the circuit is considered as connected, and the beeper sounds (if sound is turned on). The short-circuit resistance is only applicable to the continuity test. Operating Steps: 1. When Continuity function is selected, press【Threshold】to enter interface as the following diagram.
SIGLENT Dual-display Function Dual-display function is used to improve test and measurement functions. Press to open Dual-display function and the upper right corner will show “Dual”. By this time, press a function key if this function can be used as the vice display, it will be displayed in the Vice Display. The Main Display will display the function that is selected before the Dual-display function is turned on. All the available combinations are listed in table 2-12.
SIGLENT 2. If different measurement functions are used in both Main and Vice Display. The readings in both of the display will update alternately. If math function (dBm, dB) is used in Main Display, when opening Vice Display, math operation will be closed automatically and Vice Display will show the second selected function normally.
SIGLENT Utility Function The Utility function enables users to set up system parameters, interface parameters of the multimeters. Press and to enter the operating menu of Utility function, as the following diagram shows. Diagram 2- 37 Utility Function Configuration Interface Table 2- 13 Utility Function Menu Description Function Menu Store/Recall Manage File I/O Config Test/Admin System Setup Description Store or recall setting files. Create a new file, copy, rename or delete a file.
SIGLENT Store and Recall The Store/Recall function enables users to store and recall the instrument parameters and data files in the local storage as well as in USB storage. Operating Steps: 1. After entering into the function menu of Utility, press 【Store/Recall】to enter the interface as shown in diagram 2-38. Diagram 2- 38 Store and Recall Interface 2. Press【Store Settings】to enter the following interface.
SIGLENT Table 2- 14 Storage Function Menu Description Function Settings Menu Browse File Name Type .xml / .csv Store MS Data Done Description Choose the location that file will be saved. Input a file name. Choose the type that the file is saved. Save the file as input file name to the current selected location. Save all changes and return to the higher level menu. 3. Press【Recall Settings】to enter the following interface.
SIGLENT Manage File The Manage File function enables users to create a new folder and save, copy, rename or delete files in the local storage as well as in USB storage. Operating Steps: 1. After entering into the function menu of Utility, press【Manage File】to enter the interface as shown in diagram 2-41. Diagram 2- 41 Manage File Interface 2. Choose the file location. Press【Browse】and use direction keys to select the corresponding file. 3. Press【File Name】to enter the following interface.
SIGLENT The method of inputting file name: Press direction keys to select a desired char in the input area. Press “OK” key on the front panel to input selected char in the input area. Press【Clear All】to clear all input chars. Press【Delete Char】to delete the letter on which the cursor taking place. Press【Previous Char】to move the cursor in the file name area to the previous char. Press【Next Char】to move the cursor in the file name area to the next char.
SIGLENT I/O Configuration Press【I/O Config】to enter the following interface and set up the parameters. Diagram 2- 43 I/O Configuration Interface LAN Settings The Multimeter enables users to operate instrument remotely by LAN interface and store or recall internet settings. You can look over current LAN settings and set up IP address and subnet mask. After entering into the function menu of Utility, press 【I/O Config】. Select【On】 →【LAN Settings】→【Modify Settings】to enter the following interface.
SIGLENT Table 2- 16 LAN Settings Function Menu IP Address Subnet Mask Cancel Done Description Set up IP address and the default setting is 10.11.11.104. Set up subnet mask and the default setting is 255.0.0.0. Cancel current operation and return to the higher level menu. Save all changes and return to the higher level menu. GPIB Settings (Only for SDM3055A) Each device on the GPIB (IEEE–488) interface must have a unique address. The default address is 30 when the instrument is leaving the factory.
SIGLENT Board Test SDM3055 provides self-test functions, including Key Test, LCD Test, Beeper Test and Chip Test. Operating Steps: 1. Press and , then choose【Test/Admin】→【Board Test】 to enter the following interface. Diagram 2- 46 Board Test Interface Table 2- 17 Board Test Function Description Function Menu Key LCD Beeper Chip Done Description Test the instrument’s keys. Test the instrument’s LCD screen. Test the instrument’s beeper. Test the instrument’s chips. Return the higher level menu. 2.
SIGLENT Diagram 2- 47 Key Test Interface NOTE: Before you operate, the shapes on the screen display blue color. The corresponding area of tested buttons or knobs would display green color. Press【Done】to exit the test. 3. Test the LCD screen. Select【LCD】to enter the screen test interface, the screen shows the message:” Press ‘Change’ to change Press ‘Done’ to exit“. Press【Change】 to start the test and observe if the screen has severe color or other display error. As the Diagram 2-48 shows.
SIGLENT 4. Test the beeper. Press 【Beeper】to test the beeper. Under regular circumstance, press 【Beeper】 one time and the instrument will beep one time. 5. Test the chips. Press【Chip】→【Start】to enter chip test interface, as Diagram 2-49 shows. Diagram 2- 49 Chip Test Interface NOTE: If the test is passed, the corresponding result shows “pass”. If the test is failed, the corresponding result shows “fail”. 6. Press【Done】to exit the board test.
SIGLENT Firmware Update The software of the Multimeter can be updated directly via USB flash drive, updating current software version to desired software version. Operating Steps: 1. Copy the update file to the USB flash drive. 2. Insert USB flash drive to USB host interface on the front panel of the Multimeter. 3. Press → →【Test/Admin】→【Firmware Update】, then press 【Browse】and select the update file. Next, press【Update】→【Yes】to start updating the system software. 4.
SIGLENT System Setup Press and , then select【System Setup】to enter the following interface. Diagram 2- 51 System Setup Interface Table 2- 18 System Settings Menu Description Function Menu Language Screen System Info Done Description Select the display interface language. Set up the screen protection function. View system information. Return to the higher level menu. 1. Select language. The Multimeter supports two kinds of languages, English and Chinese.
SIGLENT 2. Set up the time of screen protection. Press【Screen】to set screen protection as 1 Min, 5 Mins, 15 Mins, 30 Mins, 1 Hour, 2 Hours or 5 Hours according to different demands. Activate the screen saver program and screen saver will be on if no action is taken within the time that you have selected. Press any button the resume. 3. View system information.
SIGLENT Acquire Sampling is a process of acquiring and digitizing signal. The optional Trigger methods of the Multimeter include Auto Trigger, Single Trigger and External Trigger. Press to enter the interface shown as the following diagram: Diagram 2- 52 Acquire Interface Table 2- 19 Function Menu of triggering parameter Function Menu Trg Src Slope Delay Samples/Trigger VMC Out 56 Description Set the source of trigger. Set the slope polarity of external trigger. Set the delay.
SIGLENT Auto Trigger Auto Trigger parameters that need to be set up include delay, samples/ trigger and VMC out. Operating Steps: 1. Press , then select 【Trg Src】→【Auto】or press panel directly to enable Auto Trigger. on the front 2. Set the delay. Delay is the waiting time after the trigger signal is sent out and before the auquiring starts. Press 【Delay】to select Auto or Manual mode.
SIGLENT Single Trigger Single Trigger parameters that need to be set up include delay, samples /trigger and VMC out. Operating Steps: 1. Press , then select 【Trg Src】→【Single】or press on the front panel directly to enable Single Trigger. See the diagram below. Diagram 2- 53 Setting interface of Auto Trigger 2. Set the delay. Press 【Delay】to select Auto or Manual mode. 3. Set the number of samples or trigger. Press 【Samples/Trigger】to set sample count. 4. Set the VMC Out.
SIGLENT External Trigger The external trigger signal will be input via EXT TRIG interface on the rear panel. External trigger parameters that need to be set up include delay, samples /trigger, slope and VMC out. Operating Steps: 1. Press , then select 【Trg Src】→【Ext】or press panel directly to enable External Trigger. on the front Diagram 2- 54 Setting interface of Ext Trigger 2. Set the polarity of slope. Press 【Slope】to choose Positive or Negative polarity. 3. Set the delay.
SIGLENT Help System SDM3055 provides powerful built-in help system. You can recall help information at any time during using the instrument. You also can get a particularly help for every button on the front panel or menu softkey by using the built-in help system. Or you can get help about familiar operations with the help list. Press shows. and to enter the help list, as the following diagram Diagram 2- 55 Help Menu Table 2- 20 Help System Operating Menu Function Menu Up Down Select Done 1.
SIGLENT 3. Measuring Capacitance. Get the method to measure temperature. 4. Math Function. Introduce how to use the math function while you are measuring. 5. Dual-display Function. Get the method to use the dual-display function while you are measuring. 6. Saving and Recalling Information. Introduce how to store and recall the data/parameter/ sensors files. 7. Optional Multiple Scan Card. Get help about operating optional multiple scan cards. 8. The convention and Tips of Softkeys.
SIGLENT Math Function The Multimeter provides five math functions: Statistics, Limits, dBm, dB and Relative. Choose different math functions to meet different measurement demands. Math functions can only be used in DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period and Temperature measurement. Among these functions, dBm and dB are only used in DC Voltage and AC Voltage measurement.
SIGLENT Table 2- 21 Math Function Menu Description Function Menu Settings Statistics Limits dBm dB Rel Value Value/Off Description Reading statistic functions, including: max, min, average, span, std dev and samples. The Limits function performs Pass/Fail testing according to the specified upper and lower limits. The dBm is based on a calculation of power delivered to a reference resistance, 0dBm = 1mW. The dB measurement is the difference between the input signal and a stored relative value.
SIGLENT Statistics There are many kinds of reading statistic functions, including: Max, Min, Average, Standard deviation and so on. The Statistic function is available for DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency， Period, Capacitance and Temperature measurement. Press →【Statistics】→【Show】 to enter the interface shown in the following diagram.
SIGLENT Statistics Function: In statistic function, the first reading is usually set to the maximum or minimum value. When getting more readings, current displaying value is always the maximum/minimum reading among all the measured values. The maximum, minimum, average and reading quantities are stored in volatile memory.
SIGLENT Limits Limits function is available to prompt signals beyond ranges according to the upper and lower parameters. Following are some measurement functions which are able to do limit operation: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period, Capacitance and Temperature. Press diagram.
SIGLENT 1. How to Set Limits Select 【High】,【Low】,【Center】or【Span】 and then switch to the needed digit by Left or Right Direction keys and input numerical value by Up and Down Direction keys. 2. Unit The unit of Limits is decided by the current measurement function. 3. Over hint When the reading is lower than the set lower limit, the color of main display will switch blue to red. When the reading is higher than the set higher limit, the color of main display will switch blue to red.
SIGLENT dBm The dBm function is logarithmic and based on a calculation of power delivered to a reference resistance, relative to 1 mill watt. Besides，this function only applies to AC voltage and DC voltage measurements. Press →【dB/dBm】→【On】and select【Function dBm】to enter the interface shown in the following diagram.
SIGLENT dB Each dB measurement is different between the input signal and a stored relative value, with both values converted to dBm. The dB function applies to AC voltage and DC voltage measurements only. Press →【dB/dBm On】and select【Function dB】to enter the interface shown in the following diagram.
SIGLENT Relative Value Relative value is used for relative measurement. Actual measurement reading is the depression between measurement value and preset value. The Multimeter allows operating for the following parameters: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period, Capacitance and Temperature. Press diagram.
SIGLENT Display Mode The Multimeter supports four types of way to view measured data: “Number”, “Bar Meter” ”Trend Chart” and “Histogram”. Number Press and to open the menu of display mode and press【Display】 to enter the following interface. “Number” is always the selected mode when the Multimeter is turned on.
SIGLENT Bar Meter Operating Steps: 1. Press【Bar Meter】to enter Bar Meter display mode. Diagram 2- 64 Bar Meter Display Mode 2. Press【Horizontal Scale】to choose the way to set the vertical scale as Default or Manual mode. Table 2- 27 To Set the Vertical Scale of Bar Meter manually Function Menu Low High Center Span Done 72 Description Set the low value of horizontal scale. Set the high value of horizontal scale. Set the center value of horizontal scale. Set the span of horizontal scale.
SIGLENT Trend Chart Operating Steps: 1. Press【Trend Chart】to enter Trend Chart display mode. The default vertical scale is -2V to 2V when DC Voltage measurement is selected. Diagram 2- 65 Trend Chart Display Mode Table 2- 28 Trend Chart Display Mode Function Menu Display Trend Recent All Horizontal Scale Autoscale Once Clear Readings Description Currently selected display mode is Trend Chart. Show recent or all readings. Choose the mode of Horizontal Scale. Automatically set the horizontal scale once.
SIGLENT Press【Manual】and you can set the vertical scale manually, as the following diagram shows.
SIGLENT Histogram Operating Steps: 1. Press【Histogram】to enter Histogram display mode. Diagram 2- 68 Histogram Display Mode Table 2- 29 Histogram Display Mode Function Menu Display Histogram Binning Bin Set Cumulative Clear Readings Settings Description Currently selected display mode is Histogram. On/Off Set Binning as Auto or Manual mode. Set the parameters of Bin. Turn on or off Cumulative function. Clear all current readings and restart statistics. 2.
SIGLENT Table 2- 30 Bin Set Function Menu Settings Num.Bins Low High Center Span Outer Bins On/Off Done 76 Description Set the number of Bins, 10, 20, 40, 100, 200 or 400 selected. Set the low value of horizontal scale. Set the high value of horizontal scale. Set the center value of horizontal scale. Set the span of horizontal scale. Show the bins beyond the scope or not. Save all changes and return to the higher level menu.
SIGLENT Trigger The Multimeter supports Trigger function. Press or on the front panel to trigger the Multimeter by Auto or Single mode .Auto trigger is considered as a default when the power is on. Auto Trigger Press on the front panel one time and Auto Trigger will be started to capture continuous readings automatically. By the time, the black field of the screen will show “·Auto Trigger”. Press again and the trigger is stopped.
SIGLENT Hold Measurement Function Hold Measurement function provides users with a stable reading on the screen of the front panel. When the test leads are put away, the reading is still held on the screen, which makes users can view measured history data. Press and to open Hold measurement function interface, the black field just above the screen will show “·Probe Hold”, as shown in the following diagram.
SIGLENT Chapter 3 Application Examples This chapter mainly introduces few application examples to help users control and manipulate SDM3055 quickly.
SIGLENT Example 1: Reading Statistic Functions Introduce how to realize the statistic function during measuring. When continually measuring few readings, the Multimeter will update statistic values constantly. Operating Steps： 1. Press on the front panel to select AC Voltage measurement function and choose a proper voltage range. 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as Diagram 2-9. 3. Set the Statistics function parameters.
SIGLENT Example 2: To Eliminate Leads Impedance Relative Operation could eliminate impedance errors from leads when measuring smaller resistance. Operating Steps: 1. Press on the front panel to select 2-Wire Resistance measurement function. 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as Diagram 2-14. 3. Choose a proper resistance range according to the scope. The default is Auto Range. 4.
SIGLENT 6. Besides, pressing【Rel】on the softkey menu could also open Relative operation. The Relative Operation has been turned on.
SIGLENT Example 3: dBm Measurement dBm is commonly used in audio signal measurement. The following will introduce you how to measure dBm value. Operating Steps： 1. Press on the front panel to select AC Voltage measurement function and choose a proper voltage range. 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as Diagram 2-9. 3. Set the dBm parameters.
SIGLENT Example 4: dB Measurement As a common measuring unit, dB has been widely used in electrical engineering, radio science, mechanics, shock and vibration, mechanical power and acoustics areas. The following will introduce you how to measure dB between two circuits. Operating Steps: Method 1: Measure dBm1 and dBm2 existing in two circuits separately according to Example 3, and then dB could be got:. dB = dBm1-dBm2 Method 2: 1.
SIGLENT 5. Press【Done】to return to the higher level menu. At this time, the reading shown on the screen is the power difference between two circuits.
SIGLENT Example 5: Limits Test Limits Operation hints you the signal is overstep its range according to the selected High and Low Limit parameters; meanwhile the beeper makes a sound to alarm (if sound is on.) Operating Steps: 1. Press on the front panel to select AC Voltage measurement function and choose a proper voltage range. 2. Connect the red lead to terminal Input-HI and black lead to terminal Input-LO as Diagram 2-9. 3. Press →【Limits】to set the Limits parameters.
SIGLENT 4. Turn on the beeper and start Limits Test. As shown in Diagram 3-11. The measured result is between the Low and High limits, so the test status is “True”. 5. If changing the high limit value to 1V, the measured result is not between the Low and High limits. So the instrument beep once, and the main display is red. The test status is “Fail” and High Failures is shown. As the following diagram shows.
SIGLENT Example 6: Thermocouple setting and measurement Thermocouple is a common temperature sensor. Type, voltage and cold-side temperature are required for thermocouple measurement. The instrument can measure temperature of HI and LO terminals (cold-side), and calculate absolute temperature of hot-side. Besides, only the relationship between thermocouple voltage and cold-side temperature is need to be input according thermocouple type when you set the thermocouple sensor. Operating Steps: 1.
SIGLENT Diagram 3- 14 Select the Type of Thermocouple 3. Use direction keys to select corresponding file and press【Read】to recall the sensor settings file. Diagram 3- 15 Select Sensor Settings File 4. Press 【Units】to choose the unit of temperature. 5. View measured result. Press 【Display】and select display mode of measurement result as “All” to view measurement value and its corresponding value.
SIGLENT Example 7: To Use Hold Measurement Function Reading Hold can help user to obtain a stable reading and hold it on the display of Front Panel. The reading would be held all the same although testing pen had been moved away. Then we will introduce how to keep the readings displayed on screen. Operating Steps: 1. Press on the front panel to select DC Voltage measurement function and choose a proper voltage range. 2.
SIGLENT Diagram 3- 18 Result 2 SDM3055 Digital Multimeter 91
SIGLENT Example 8: To Use Application Software EasySDM Remote Control function based on EasySDM enables users to operate instrument remotely. The software supports basic measurements, Acquire, Statistics, Trend Chart and Histogram, etc. The method to use the software will be introduced in details as the following steps. Operating Steps: 1. Connect the Multimeter to your computer by using USB data wire. 2.
SIGLENT Chapter 4 Measurement Tutorial True RMS AC Measurement The AC measurement of the Multimeter has true RMS response. The power dissipated in a resistor within a time is proportional to the square of the measured true RMS voltage, independent of wave shape. The instrument can accurately measure true RMS voltage or current, as long as the wave shape contains negligible energy above the effective bandwidth.
SIGLENT Crest Factor Errors (non-sinusoidal inputs) A common misconception is that "since an ac Multimeter is true RMS, its sine wave accuracy specifications apply to all waveforms." Actually, the shape of the input signal can dramatically affect measurement accuracy. A common way to describe signal wave shapes is “crest factor”. Crest factor is the ratio of the peak value to RMS value of a waveform.
SIGLENT Loading Errors (AC Voltage) In the AC Voltage function, the input of SDM3055 appears as a 1MΩ resistance in parallel with 100pF of capacitance. The test lead that you use to connect signals to the Multimeter will also add additional capacitance and loading. The approximate input resistances of the Multimeter at different frequencies are listed in the following table.
SIGLENT Application of the Analog Filter The analog filter of the Multimeter can be used to reduce the influence of the AC component in DC measurement. Generally the filter may not be required, but sometimes it can improve the DC measurement. For example, if the measured DC electrical source has a big AC ripple, the analog filter can reduce the influence. The analog filter can’t be used to filter the internal noise of the instrument.
SIGLENT Chapter 5 General Troubleshooting The following is a list of the troubles that you may meet while using the Multimeter and their solutions. Please handle as the corresponding steps when meeting these troubles. If you still can’t handle them, please contact SIGLENT in time. 1. If the screen of the Multimeter is still dark with nothing displaying after pressing the power key: (1) Check if the power has been connected correctly.
SIGLENT Chapter 6 Appendix Appendix A: Accessories Standard Accessories: A Power Cord that fits the standard of destination country. Two test leads (black and red) An USB Cable One backup fuses A Quick Start An Application software NOTE: We suggest that the length of USB data wire and LAN cable connected to the instrument should be less than 3m to avoid affecting the product performance. All the accessories are available by contacting your local SIGLENT office.
SIGLENT Appendix B: Warranty summary SIGLENT warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three years from the date of shipment from an authorized SIGLENT distributor. If a product proves defective within the respective period, SIGLENT will provide repair or replacement as described in the complete warranty statement.
SIGLENT Appendix C: Daily Maintenance and Cleaning Maintenance When storing or placing the instrument, please avoid the liquid crystal display from direct sunlight for a long time. NOTE: To avoid damages to the instrument or probe, please don’t place them in mist, liquid or solvent. Cleaning Please often clean the instrument or probe according to the use of them. Wipe the external ash of the instrument and probe by a soft rag.
SIGLENT Appendix D: Contact SIGLENT SIGLENT TECHNOLOGIES CO., LTD. Address: 3F, NO.4 building, Antongda Industrial Zone, 3rd Liuxian Road, 68th District, Baoan District, Shenzhen, P.R. China Tel: +86-755-36615186 Fax: +86-755-3591582 Post Code: 518101 E-mail: sales@siglent.com Http://www.siglent.
