ASHCROFT ATE-2 Operation and Maintenance Manual PS 54 0.0 I in 6 0.8 H2 0 All specifications are subject to change without notice. All sales subject to standard terms and conditions. © 2014 Ashcroft Inc.
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Congratulations on your purchase of a Ashcroft ATE-2, one of the finest precision pressure measuring instruments available anywhere. These instruments are precision devices, designed to measure, indicate pressure, temperature, DC voltage or current with an extremely high degree of accuracy and are rugged enough to provide laboratory performance in field service.
TABLE OF CONTENTS (cont.) g. h. i. j. k. l. m. Switch Test ...........................................................................................................35 Percent (%) Error Function ..................................................................................37 Dual Mode Functions ...........................................................................................41 RTD Temperature Measurement..........................................................................
ASHCROFT ATE-2 The information in this manual pertains to Ashcroft ATE-2 Hand Held Calibrators; referred to as the HHC or ATE-2. This manual also covers sensing modules used with the HHC; referred to as AM2 modules.
PURPOSE AND SCOPE OF MANUAL IMPORTANT Please read the entire manual thoroughly before using the instrument or attempting any service or repair work. The instructions in this manual are intended to be performed by qualified instrumentation or technical personnel only. This manual should be kept with the instrument or in a place of safe keeping at all times, as it contains pertinent information for operation and maintenance. Additional manuals can be ordered through Customer Service.
WARNINGS CONT. Warning to avoid shock or personal injury • Follow all applicable equipment safety procedures. • Inspect the calibrator before use. Do not use the calibrator if it appears damaged. • Close battery door and secure with lock screw before using the calibrator. • Check all test leads for continuity, damaged insulation or exposed metal. Replace any damaged leads. • Use the proper terminals, mode and range for any measuring and sourcing application.
ADDITIONAL WARNINGS CONT. 2 5 0 E A S T M A I N S T. S TR ATF O R D , CT 0 6 6 1 4 w w w. a s h c rof t .c o m 0518 INTRINSICALLY SAFE/SÈCURITÈ INTRINSÈQUE Exia CL I, DIV 1, GR A, B, C, D. T4 -20°C≤Ta≤+50°C II 1 G FM12ATEX0035X Ex ia II C T4 Ga -20°C≤Ta≤+50°C ENTITY PARAMETERS Ui=33Vdc Ii=300mA Ci=0 Li=0 Pi=1.5W Uo=5.735Vdc Io=586 A Co=46 f L0=1H Po=840 W WARNING: See Dwg #825A028 for installation, batteries and warnings HAND HELD CALIBRATOR 6D49 E171189 Unit contains a lithium battery.
INTRODUCTION The ATE-2 is a simple, yet sophisticated, high accuracy, battery or USB powered, handheld calibrator device. Used together with interchangeable pressure and temperature modules, this device measures, displays and can record pressure, temperature, DC voltage or milliamp current. Up to three measurements can be simultaneously displayed. A standard system consists of a base unit and one or two Quick-Select modules.
SECTION 3.0 PRODUCT SPECIFICATIONS BASE UNIT PHYSICAL SPECIFICATION Dimensions Weight Case Material Sensor Module Capacity Display Power Source/Requirements Real Time Clock Battery Battery Life AC/DC adaptor (USB Port) Electrical Connection Electrical Output Current Input Voltage Input Interface Removable Data Storage 8.7” L X 5.1” W X 3.8” H 2.4 pounds (includes two modules installed) High Impact PC-ABS with rubberized sections 2, hot swappable, modules are fully recognized automatically 1.5” X 2.
SECTION 3.0 PRODUCT SPECIFICATIONS CONT. Feature or Function On/Off X Backlight X Esc X Menu X Flip Screen X Navigation Keys (4) X Port Select X Zero X mA / V X Damping X Tare Capability X Min / Max Tracking X Data-Logging w/auto start/auto stop Field Calibration (Base Unit and pressure modules) Passcode Lock Selectable Eng.
SECTION 4 BASE UNIT OVERVIEW The base unit functions as a host for the Quick-Select pressure and temperature modules. The base unit includes two bays for installation of pressure or temperature modules, an LCD graphic display with back light, a key pad, a USB micro B receptacle for communication with a PC, an SD memory card slot and banana jack connections for DC voltage supply and signal monitoring. The enclosure is rated to IP65 water resistant.
SECTION 4 The operator can program several parameters in the calibrator which are further detailed in this manual.
SECTION 6 QUICK-SELECT MODULE OVERVIEW CONT. Quick-Select modules when installed in the base unit are referred to as Channel 1 and Channel 2. Channel 1 is always the module on the left side of the calibrator when it is held upright with modules at the top of the calibrator and the LCD display facing the operator. Channel 2 is on the right side when the base unit is held in the same position.
SECTION 6 QUICK-SELECT MODULE OVERVIEW CONT. AM2-TC1 temperature modules read types J, K, T, E, R, S, B and N thermocouples and display the measurement in units of degrees Fahrenheit, Celsius, Kelvin, Rankin or millivolts. System protection modules AM2-XS are used to protect unused sensor bays in the base unit from moisture or other contamination ingress as well as EMI/RFI interference.
SECTION 7 UNPACKING Prior to removing the HHC from the packaging material, inspect all cartons for shipping damage. Document any damage evident in the event that a damage claim must be made against the shipper. After inspection, remove the base unit, module(s), manual and any accessories purchased from the packaging material. Retain the packaging for use in returning the HHC to the factory for future calibration or repair.
SECTION 11 MODULE INSTALLATION 1. Hold the base unit, in one hand, with the keypad side DOWN. 2. Holding the Quick-Select module to be installed in the other hand, align the module with the locking tab up, with the module bay on the base unit. 3. Slide the Quick-Select module into the base unit until the retaining/release tab catches in the square cutout in the module bay of the base unit. This will lock the Quick-Select module into the base unit.
SECTION 12 STARTUP BASIC FUNCTION CONT. number, range and calibration data for each module will be briefly displayed before booting up in Measurement Mode. -0.17 -0.004 inH20 PSi The HHC is now ready for basic pressure or temperature measurement. Pressure readings from installed modules will be displayed in the engineering unit in which the module was originally calibrated. Connect the pressure port(s) of the Quick-Select pressure module(s) to be used to the pressure source to be measured.
SECTION 13 KEY FUNCTION OVERVIEW The most common functions are accessible by dedicated keys on the keypad. More complex and less often used functions and programmable features are accessible through an easy-to-navigate MENU system. A number of the keys have different functions depending in which mode the HHC is operating. These keys have white and yellow lettering and icons. The white lettering indicates the primary key function. Yellow is the secondary function.
SECTION 14 a. ESCFUNCTION During any programming operation pressing the ESC key will cause the HHC to exit any special display mode or, step back one programming level if in Programming Mode. SECTION 14 b. PORT SELECT FUNCTION PORT SELECT function is used in several programming applications including zero, min/max, tare and damping. This allows the user to choose between installed modules to which an action is to be performed.
SECTION 14 f. DAMPING FUNCTION The Damping Function stabilizes a measured pressure signal. When damping is activated, the value displayed, saved to a Datalog or transmitted to a journal (eg. To HyperTerminal) is a filtered value. The filtering is programmable to 16 incremental levels, allowing the damping function to be tailored to the specific requirements of most any application. The default damping level is 1.
SECTION 14 f. DAMPING FUNCTION CONT. SECTION 14 g. MANUAL DATALOG FUNCTION CONT. To close a Datalog and prepare the HHC to begin a new Datalog press the ESC key. The next press of the DATA STORE key will begin a new Datalog and will continue to record data in the new log with every subsequent press of the key. Up to 64 individual logs can be stored in the on board memory with a total of 16,000 individual records. SECTION 14 h.
SECTION 14 h. TARE FUNCTION CONT. –0.000 -0.24 PSi Tare inH20 0.000 mA Exit Tare Mode Press TARE key Press PORT SELECT key repeatedly to select Channel 1, Channel 2, or both active pressure modules Press ENTER Selected modules are now in Measurement Mode without a tare value.
SECTION 14 i. mA/V FUNCTION SECTION 14 j. WIRING DIAGRAMS The HHC has the capability to monitor either DC milliamp current 0-22 mA or DC voltage 0-33 Vdc. Use of this feature requires connection to the voltage or current source via the 4mm “Banana Jacks” located above the units LCD. Note that this calibrator can monitor only one parameter, either voltage or current, at a time.
24Vdc Out SECTION 14 j. 0-22mA In COM 0-33Vdc In 0-22mA In 24Vdc Out WIRING DIAGRAMS CONT. COM 0-33Vdc In SWITCH HOOKUP USING INTERNAL SUPPLY SWITCH NORMALLY OPEN EXTERNAL 24 VOLT DC RESISTOR* + – 24Vdc Out 0-22mA In COM 0-33Vdc In *Resistor should be sized to allow current as follows: 2 mA < I < 36 mA, 2 mA 12 k , 35 mA 686 SECTION 14 k.
SECTION 14 k. 24 VDC POWER SUPPLY ENABLE AND DISABLE 0.10 15.34 inH2O PSi 0.000 mA Loop supply overloaded Remove the excessive load from the circuit and attempt to activate the 24v loop power supply via the MENU as described above. If the excessive load is not removed from the circuit upon activation, the loop supply will be disabled and the following warning message will be displayed 0.11 15.29 inH2O PSi 0.033 mA Loop supply reset failed SECTION 14 l.
SECTION 14 l. MIN/MAX FUNCTION CONT. Max: 6.21 Min: –11.20 inH20 –0.010 PSi 0.000 mA To clear active Min/Max measurements press the ZERO key. To exit Min/Max mode completely press the ESC key. Note: Datalogs recorded while in Min/Max Mode will record the real time pressure measurements at the time of writing to the Datalog, not the min/max values. If minimum and maximum values occur between log entries, the data will NOT be included in the Datalog. SECTION 15 MENU MODE FUNCTIONS SECTION 15 a.
SECTION 15 a. MENU MODE GENERAL KEY FUNCTIONS CONT. to move the selection box in a MENU UP or DOWN, and are also used to scroll through programmable parameters such as alpha numeric characters when programming names. LEFT and RIGHT ARROW Keys DAMP/LEFT ARROW and TARE/RIGHT ARROW keys are dual function keys which are used in MENU Mode to move the cursor to the right or left. FLIP/DEL key when in Programming Mode is used to zero a numeric character or advance an alpha character to a blank space.
SECTION 15 b. ii. Programming Owner Name Programming Owner Name (15 Characters max) Press MENU key Press DOWN or UP ARROW key to highlight “Setup…” Press ENTER Press DOWN or UP ARROW key to highlight “System” Press ENTER Press DOWN or UP ARROW key to highlight “Owner…” Press ENTER Owner Password screen appears. If the Owner Password is not known, see section 5 to obtain owners password.
SECTION 15 b. iii Program Auto Off Timers Cont. Press ENTER Use DOWN or UP ARROW to highlight “Auto off timer…” Press ENTER Use DOWN or UP ARROW to highlight “Power off”… OR Use DOWN or UP ARROW to highlight “Backlight off”… Auto Off Modes Power Off… Backlight Off… Press ENTER Use DOWN or UP ARROW to highlight desired time in minutes or “Never” Power Off Times Never 5 Minutes 15 Minutes 30 Minutes 60 Minutes Press ENTER HHC will return to Measurement Mode with values being saved SECTION 15 c.
SECTION 15 d. H2O TEMPERATURE CONVERSION SELECTION If the user selects an engineering unit which references water column pressure, they can select a water temperature to factor into the conversion. The pressure generated by a column of water will vary with the temperature of the water.
SECTION 15 e. PROGRAMMING USER DEFINED UNIT OF MEASURE CONT. Press left and RIGHT ARROWs to position cursor beneath desired character Press UP and DOWN ARROWs to increment alpha and numeric characters When the Unit name is correct press ENTER HHC will return to “User Units” screen Note: Unit of Measure names are limited to six characters.
SECTION 15 f. i. Program Channel Tag Names Program Channel Tag Names (up to 7 characters) The default channel names, Channel 1, Channel 2 and Ext can be re-programmed by the user.
SECTION 15 f. ii. Program Auto Datalog Time Cont. Set log interval Desired: 00001.0 sec Actual: 00001.2 sec Enter to accept Esc to cancel “^ “Beneath a digit indicates which character in the time interval name is being configured. Press UP or DOWN ARROW to scroll through numeric values Use left or RIGHT ARROW to move cursor to next desired position. When the desired time interval in seconds is displayed, press ENTER The HHC will return to Measurement Mode.
SECTION 15 f. iv. Initate Manual Datalog Cont. Use DOWN or UP ARROW to highlight “Manual/Auto…” Press ENTER Use DOWN or UP ARROW to highlight Manual or Auto, select “Manual…” Press ENTER Display will return to Measurement Mode. Press DATA STORE to begin a new manual Datalog. Display will briefly show “Data point Taken” then will display “Manual log enabled” -0.11 -0.011 inH20 PSi 0.000 volts Manual log enabled Subsequent presses of DATA STORE will add one new data point for each key press.
SECTION 15 f. v. Review Datalogs Cont. Or Press ESC to go back to “Select Datalog” screen and choose another log to review. SECTION 15 f. vi. Export Datalogs to SD Card The HHC contains a slot for a standard SD memory card. When a card is installed Datalogs can be exported to the card in .CSV (Comma Separated Values) files which are able to be read by Microsoft Excel or other spread sheet software. One .CSV file is generated per Datalog.
SECTION 15 f. vii Clear Internal Memory Storage Cont. Delete all logs? Are you sure you want to clear all internal storage? Yes No Use DOWN or UP ARROW to highlight Yes or No Press ENTER Selecting “no” will return to the Datalog MENU Selecting “yes” will proceed to “Clearing Logs…” screen. Clearing logs… Clearing all internal storage: this may take a little while. When the operation is complete the HHC will return to Measurement Mode. SECTION 15 g.
SECTION 15 g. SWITCH TESTING FUNCTION CONT.
SECTION 15 h. PERCENT (%) ERROR FUNCTION The Percent Error Function allows the user to display the output from a device under test in terms of percent error of the full scale range of that device. This function applies to the calibration of both temperature and pressure devices. Percent error mode eliminates the need for manual calculations to determine the level of accuracy of the device under test.
SECTION 15 h. PERCENT (%) ERROR FUNCTION CONT. Output refers to any output signal from the device under test. Output channel refers to the channel on which the device under test is sending its output signal. For example a pressure transducer with 0-10 VDC output would be connected to the HHC’s External input, referring to the banana jacks labeled COM and 0-33 Vdc In. Output range refers to the numeric range of the output of the device under test. In the example above the range would be 0 to 10.
SECTION 15 h. PERCENT (%) ERROR FUNCTION CONT. Input range 4-20 0-x 1-x Custom Use DOWN or UP ARROW to highlight 4-20, 0-X, 1-X or Custom Note: If a range ending in “–X” or “Custom” is selected the operator can program the numeric value for the variable as follows If a custom range is required: Use DOWN or UP ARROW to highlight “Custom”… Note: programming of Custom and “X” values uses similar procedures for setting numeric values and decimal positions. Input Zero screen will be displayed.
SECTION 15 h. PERCENT (%) ERROR FUNCTION CONT. When desired FS input value is displayed on screen for example 00110.00000 Press ENTER to accept HHC will go back to Percent Error MENU and advance to the next programmable parameter. Use DOWN or UP ARROW to highlight “Output channel…” Press ENTER Use DOWN or UP ARROW to highlight “CH1” (Channel 1 Module) or “CH2” (Channel 2 module) or “External Input…” Note: Typically external input is used with transducers that provide voltage or current output signals.
SECTION 15 h. PERCENT (%) ERROR FUNCTION CONT. Output FS 00006.00000 ^ Enter to accept Esc to cancel Press left and RIGHT ARROWs to position cursor beneath desired numeric character Press UP and DOWN ARROWs to scroll numeric values. When desired numeric value is displayed in proper decimal position Press left or RIGHT ARROW to move cursor beneath the next digit to be programmed When desired Full scale value is displayed on screen for example 00006.
SECTION 15 i. DUAL MODE FUNCTION CONT. Dual sensor differential measurements will have similar accuracy specifications.
SECTION 15 j. RTD TEMPERATURE MEASUREMENT CONT. XXX-RT1 XXX-RT2 Ohms Measurement Range 0 - 400 ohms 0 - 4000 ohms Factory Programmed RTD Probe 01 Pt100 385: -200 to 500C ±0.15C Pt1000: 184 to 275C ±0.15C Factory Programmed RTD Probe 02 Pt100 392: 550 to 850C ±0.2C ---- Factory Programmed RTD Probe 03 Ni 120: 80 to 260C ± 0.1C ---- Factory Programmed RTD Probe 04 Cu 10: 70 to 150C ± 0.6C ---- Available User ProgrammableR TD Probes 4 7 Ohms +0.01% reading +0.02ohms +0.01% reading +0.
SECTION 15 j. RTD TEMPERATURE MEASUREMENT CONT. RTD Module Channel… Probe connection… Probe Select… Resolution… Apply Use DOWN or UP ARROW to highlight “Channel”… Press ENTER Use DOWN or UP ARROW to highlight “CH1” “CH2” Press ENTER Note: If the incorrect type of module is installed a “MODULE ERROR” message will be shown.
SECTION 15 j. RTD TEMPERATURE MEASUREMENT CONT. 0.01 degrees C. Supported Resolutions for Factory Programmed Probes: XXX-RT1 Pt100 0.01 degrees C (385 & 392) XXX-RT1 Ni 120 0.1 degrees C XXX-RT1 Cu 10 0.1 degrees C XXX-RT2 Pt1000 1.0 degrees C SECTION 15 k. THERMOCOUPLETEMPERATURE MEASUREMENT The HHC can be used with several standard Thermocouple types for precision temperature measurements.
SECTION 15 k. THERMOCOUPLETEMPERATURE MEASUREMENT CONT. TC Module Channel… Junction type… Auto/manual ref… Resolution… Apply settings Use DOWN or UP ARROW to highlight “Channel…” Press ENTER Use DOWN or UP ARROW to highlight “CH1” “CH2” Press ENTER Note: If the incorrect type of module is installed a “MODULE ERROR” message will be shown. Return to TC Module screen Use DOWN or UP ARROW to highlight “Junction type”… Press ENTER TC Junction type screen appears.
SECTION 15 k. THERMOCOUPLE TEMPERATURE MEASUREMENT CONT. Press left and RIGHT ARROWs to position cursor beneath desired numeric character. Press UP and DOWN ARROWs to scroll numeric values. When desired numeric value is displayed in proper decimal position, press LEFT or RIGHT ARROW to move cursor beneath the next digit to be programmed. Continue until all required digits are populated on the display.
SECTION 15 l. FIRMWARE UPDATE CONT.
SECTION 15 l. FIRMWARE UPDATE CONT.
SECTION 15 l. FIRMWARE UPDATE CONT. 3) Download the HHC Firmware Image to the Host PC: HHC Firmware images have the filename extension “.cyacd”. Example: “pte2 v_050-083.cyacd” Simply copy this file onto your local hard drive, making a note of its path so you can find it. 4) Connect the HHC to the Host PC: Using the supplied USB cable, connect the HHC to an open USB port on your Host PC.
SECTION 15 l. FIRMWARE UPDATE CONT. Select the appropriate COM port. TIP: When you pull DOWN “Select Com Port” it scans your computer and presents a list of available COM Ports. If you do this before and after connecting the USB cable to the HCC, you should see an extra com port with the HHC connected. Select that new port. If the HHC does not appear as a COM Port, make sure that you have installed the FTDI USB Driver.
SECTION 15 l. FIRMWARE UPDATE CONT. Click [Connect]. Both the “Com port status” and the “Device Status” should indicate “Connected”. NOTE: If the “Com Port Status” is “Connected” and the “Device Status” is “Disconnected” you most likely have the wrong COM port or the device is not in the “Firmware Update” mode. If unsure of the correct COM port number disconnect the USB cable from the PC then reconnect to have the PC display a message stating the new COM port number.
SECTION 15 l. FIRMWARE UPDATE CONT. Note: The File Transfer can take up to 15 Minutes.
SECTION 15 l. FIRMWARE UPDATE CONT. When the “Transfer Successful” message is displayed the process has completed. You can verify the update was successful by powering on the HHC base unit and noting the new firmware revision number displayed during boot up and in the “about this HHC…” MENU under Setup/System.
SECTION 15 m. COMMUNICATIONS INTERFACE The HHC can be connected to a PC running Windows XP or Windows 7 or 8 via the USB port. Windows will recognize the HHC as a Communications Port. The HHC has three communication protocol modes: Inquiry/Journal mode: These communications modes are included in standard HHC models. HHC acquisition data can be accessed via a Windows terminal emulation programs including Windows HyperTerminal or TeraTerm.
SECTION 15 m. i. SECTION 15 m. ii. USB Cable Installation Cont. IMPORTANT NOTE for INTRINSICALLY SAFE APPROVED VERSIONS OF THE Hand Held Calibrator 1. When access port is open, the device is not operating in an Intrinsically Safe mode. As such it is not possible to use the HHC in a hazardous area whenever the USB port is exposed or if the port access door is not secured with Philip’s head screw. 2.
SECTION 15 m. ii. Driver Installation Cont. If the following dialog box appears, click “Browse my Computer” The dialog below will appear. Click “Browse and navigate to the drive with the memory stick, then click Next. Windows will install the driver. Once complete an HHC will enumerate as a Communications Port on this computer. The driver installation should not have to be performed again.
SECTION 15 m. ii. Driver Installation Cont. The HHC will appear as a Communications Port on a Windows PC. It will be assigned the port number of the first available port on the PC. To determine which port number has been assigned look in the Windows Device Manager. This can be accessed by the Windows Control Panel under System or by right clicking on your My Computer Icon, selecting Properties and Device Manager. In Device Manager expand Ports to see which USB Serial Port is assigned to the HHC.
SECTION 15 m. iv Inquiry Mode Set up Inquiry Mode Inquiry mode is similar to manual datalogging where a data point will be sent to the PC based on a user defined character or the Enter key being pressed from the PC keyboard.
SECTION 15 m. v. Journal Mode Set up Journal Mode Journal mode is similar to Automatic Datalogging mode where the operator can set a timed interval between data points being communicated to the PC. In Journal Mode the HHC will output the data string at a time interval set by the user. No command from the PC is needed to start the Journal output.
SECTION 15 n. CALIBRATE BASE UNIT CONT. Obtaining “As found” and “As Left” data procedure consists of applying precision voltage and current signals to the proper terminations and reading the values displayed on the HHC display. Base unit recalibration is a firmware based, menu driven procedure that provides prompts on the HHC display directing the operator to apply precision voltage and current signals to designated terminals. Recalibration is accessed via the menu system.
SECTION 15 n. CALIBRATE BASE UNIT CONT. 2. Connect the positive lead of the voltage standard to the red ringed “0-33Vdc In” jack 3. Power on a voltage standard capable of delivering up to 10.000v DC and allow it to warm up to its specified accuracy as defined by the manufacturer 4. Power on the HHC using either USB or battery power and allow it warm up to its specified accuracy (5 minutes) 5. Set the voltage standard to 0.000 volts dc 6.
SECTION 15 n. CALIBRATE BASE UNIT CONT. 3. Power on a DC current source capable of delivering up to 20.000mA and allow it to warm up to its specified accuracy as defined by the manufacturer 4. Power on the HHC using either USB or battery power and allow it warm up to its specified accuracy (5 minutes) 5. Set the current source to 0.000 mA 6. With the HHC in measure mode press the Ma/V key repeatedly until a mA reading appears on the display 7.
SECTION 15 n. CALIBRATE BASE UNIT CONT. 9. Select Volts Engineering Units a. Press MENU key b. Press DOWN or UP ARROW key to highlight “Units…” c. Press ENTER d. Press DOWN or UP ARROW key to highlight “Select Units” e. Press ENTER f. Press DOWN or UP ARROW key to highlight “Channel 1 Module”, “ g. Press ENTER h. Press DOWN or UP ARROW key to highlight volts i. Press ENTER 10. Voltage displayed on Channel 1 is the compensated 0-1 volt signal. Record this “As Found/Left” value. 11.
SECTION 15 n. CALIBRATE BASE UNIT CONT. Cal Password 00000 ^ Enter to accept Esc to cancel f. Press left and RIGHT ARROWs to position cursor beneath desired character g. Press UP and DOWN ARROWs to increment numeric characters h. When the password is correct press ENTER i. “Calibrate” screen appears Note: If the incorrect password is entered, the HHC display will show a message “Bad Cal PW”, and the user will be asked to Retry or Abort. j. Press DOWN or UP ARROW key to highlight “System” k.
SECTION 15 n. CALIBRATE BASE UNIT CONT. 20. Power on the voltage standard and allow it to warm up to its specified accuracy as defined by the manufacturer. 21. The HHC Base Unit will prompt the operator to apply precision voltage and current values to specific terminals, data collection will take a few seconds then the HHC will prompt the operator to move to the next step in the following sequence : a. Apply 0.000 volts to the voltage input jacks press ENTER b. Apply 30.
SECTION 15 o. PRESSURE MODULE CALIBRATION CONT. 0.025% - 0.07% standard accuracy 11 points (approximately 10% increment) 0.1% standard accuracy 6 points (approximately 20% increment 0.25% standard accuracy 5 points (approximately 25% increment) When calibrating linearity, the HHC will automatically choose the number and pressure value of data points based on the module’s full scale pressure range and it’s base accuracy specification.
SECTION 15 o. PRESSURE MODULE CALIBRATION CONT. Pres Mod CH1 Cal Cal Zero Cal Full Scale Cal Linearity Apply new cal NOTE: Cal Zero function must be performed prior to proceeding to Cal Full Scale; Cal Zero & Cal Full Scale functions must be performed prior to proceeding to Cal Linearity. The “Cal Full Scale” & the “Cal Linearity” keys are activated only when this sequence is observed.
SECTION 15 o. PRESSURE MODULE CALIBRATION CONT. The target Full Scale Pressure cardinal value and Min and Max allowable limits will be displayed. Use a pressure standard to apply target pressure value to a pressure module. If the pressure standard does not achieve exactly the target cardinal pressure value, actual target pressure can be edited within the Min and Max limits. This value is the pressure reading which is displayed on the external pressure calibration standard.
SECTION 15 o. PRESSURE MODULE CALIBRATION CONT. 8. Upon completion of the Linearization process, the HHC will prompt “Apply new cal” function to save the results of the entire procedure. Also at this time, each individual component of calibration (Cal Zero, Cal Full Scale & Cal Linearity) can be returned to, redone and saved individually. 9. To proceed with saving the entire Calibration, press “ENTER”. The system will display: “Saving Parameters.
MPa bar mbar inH2O (4°C) inH2O (20°C) inH2O (60°F) cmH2O (4°C) cmH2O (20°C) 71 mmH2O (4°C) mmH2O (20°C) mmH2O (60°F) 0.036063 0.002535 0.248646 0.000249 0.002486 2.486456 0.998248 0.036091 0.002537 0.24884 0.000249 0.002488 0.001422 0.014198 0.000998 0.097892 0.0000979 0.000979 0.97892 0.393011 0.393701 0.393393 9.982478 0.014209 0.000999 0.097969 0.000098 0.00098 0.979685 0.393318 0.394009 0.393701 9.990282 1.000782 inH2O (20°C) inH2O (60°F) cmH2O (4°C; 39.
SECTION 16 b. APPENDIX B Trouble Shooting and Error codes UNIT WILL NOT POWER UP ON BATTERIES Verify batteries (quantity 4, size AA) are fresh and that they are placed in the battery holder in the correct direction, matching the polarity shown on the battery holder, and that they are properly seated. For Intrinsically Safe approved units the batteries are required to be DURACELL MN1500 type.
SECTION 16 b. TROUBLE SHOOTING CONT. UNIT WILL NOT DELIVER 24Vdc LOOP SUPPLY OUTPUT If the HHC is an Intrinsically Safe base unit , then loop supply is not available. Reference the manual section 14k to enable and disable the power supply. Attempt to enable the supply. Ensure that the “24V” icon appears on the display of the HHC.
SECTION 16 b. WILL NOT READ VOLTAGES ON ITS “0-33Vdc In” INPUT JACK TROUBLE SHOOTING CONT. Consult the suggested wiring diagrams in section 14j referring to the proper voltage measurement setup With the unit powered up ensure that the input voltage is selected from the front keypad (refer to manual) by pressing the “mA/V” key in the lower left hand corner of the key pad. Multiple presses of the key will rotate through” Volts”, “mA”, and pressure only (blank displayed in the middle of the LCD display).
SECTION 16 b. TROUBLE SHOOTING CONT. available. If the 2nd module functions properly consult the factory about the faulty module if both modules fail consult the factory regarding the HHC base unit. WILL NOT DISPLAY TEMPERATURE MODULE DATA For both Thermocouple and RTD modules, ensure that the module is connected to either a thermocouple or RTD probe and that the sections of the manual relating to their set up has been observed .
SECTION 16 b. TROUBLE SHOOTING CONT.
SECTION 16 b. TROUBLE SHOOTING CONT. Dual Sensor Operation messages • DS err: CH1 unplugged: no module is installed in Channel 1 bay • DS err: CH2 unplugged: no module is installed in Channel 2 bay • DS err: units mismatch: engineering units of installed modules are different. Use units MENU to make both modules display same engineering units.
SECTION 16 c.
SECTION 16 d.
SECTION 16 e. SYSTEM ACCURACY WITH THERMOCOUPLE INTERFACE TABLE I System Accuracy (reading in temperature units): Includes the HHC base unit and XXX interface module. (Does not include inaccuracy of the thermocouple device. Consult thermocouple manufacturer or ISA MC96.1 for thermocouple accuracy specifications. Typical inaccuracies range from ±1 to ±2.2°C.) Accuracy @ 25°C Ambient (including internal Reference Junction) Expressed as ±°C Max.
WARRANTY AND LIMITATION OF LIABILITY WARRANTY INFORMATION A. Seller warrants that its products and parts, when shipped, and its work (including installation, construction and start-up), when performed, will meet all applicable specifications and other specific product and work requirements (including those of performance), if any, of this agreement, will be of good quality and will be free from defects in material and workmanship.
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For the name and location of the nearest sales representative, contact the Stratford sales office. World Headquarters Ashcroft Inc. 250 E. Main Street Stratford, CT 06614-5145 U.S.A. Tel: (203) 378-8281 Fax: (203) 385-0402 (Domestic) Fax: (203) 385-0357 (International) email: info@ashcroft.com www.ashcrodt.com Visit our web site at www.ashcroft.com All specifications are subject to change without notice. All sales subject to standard terms and conditions. © 2014 Ashcroft Inc.
