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NHR CAL Series User Manual

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NHR CAL Series
User Manual
Part No. 09-0346
REVISION E
March 8, 2022
INTERNAL - NI CONFIDENTIAL

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  • Page 1 NHR CAL Series User Manual Part No. 09-0346 REVISION E March 8, 2022 INTERNAL - NI CONFIDENTIAL...
  • Page 2 Document History Rev A 9/4/2018 R. W. Rev B Add 9200/9300 ECO 17838 1/9/2019 R.W. Rev C Add 47xx ECO 17863 3/8/2019 R.W. Rev D Add additional operational warning ECO 17907 6/6/2019 R.W. Rev E Update DC PM Cal Screen ECO XXXXX 12/16/2019 R.W.

  • Page 3: Table Of Contents

    NHR 9400 Series Calibration ........................21 Pre-Requisites ............................. 21 NHR 9400 Calibration Software ......................23 NHR 9200 / 9300 Calibration ........................32 Pre-Requisites ............................. 32 NHR 9200-9300 Calibration Configuration ..................32 Wiring Diagrams – 9200-9300 Connected to Cal R440 Loads in Parallel ..........39 Wiring Diagrams –...
  • Page 4 NHR unit Series Programmer’s Reference Manual Other Calibration ............................ 53 Measuring Current ..........................53 Measuring Very Low (Energy Star) Current ..................54 Using the Low Voltage Reference ....................... 54 SCPI P ..................... 56 ROGRAMMING Common SCPI Commands ........................56 *CLS (Clear Status) ..........................56 *ESE (Event Status Enable) .........................
  • Page 5 Programmer’s Reference Manual NHR unit Series [INSTrument:]MODE ........................... 64 [INSTrument:]LOAD ..........................64 [INSTrument:]XDCR:GAIN:AC [INSTrument:]XDCR:GAIN:DC .............. 64 [INSTrument:]XDCR:VPA ........................65 DiagnosticsCommands ..........................65 DIAGnostic:NHR:RELay ........................65 DIAGnostic:NHR:SIMulate? ......................... 65 Calibration Commands ..........................66 CALibration:DATE? ..........................66 CALibration:SAVE ..........................66 ......................67 ALIBRATION Method 1 –...

  • Page 7: Safety

    Programmer’s Reference Manual NHR unit Series SAFETY WARNING: LIVE CIRCUITS NO INTERNAL ADJUSTMENT OR COMPONENT REPLACEMENT IS ALLOWED BY NON-NH RESEARCH QUALIFIED PERSONNEL. COMPLETE THE FOLLOWING BEFORE ACCESSING THE INSTRUMENT INTERNALS: • REMOVE ALL EXTERNAL VOLTAGE SOURCES • DISCONNECT POWER CORD •...

  • Page 8: Overview

    It also includes load resistors to allow calibration of very low current (energy star) measurements. In addition, the cal series can provide a +/- 3V reference for calibrating the NHR CAL series AC/DC power modules. An optional external resistor box can be used for power loading.

  • Page 9: Communications

    Communications IP Address & Port Numbers The CAL Series uses TCP/IP (Ethernet) and requires a unique IP Address for each system. The IP address is set by using a browser to connect to the unit. IMPORTANT! The PC running the browser MUST be on the same IP subnet as the unit. For example, if the unit is at IP 19.168.0.2 then the PC must have an IP address that starts with 192.168.0 and the last...

  • Page 10: Nhr Pc-Based Tools

    Contact NH Research Customer Support for a copy of this software if required. SCPI Test Panel NHR Supplies a SCPI test panel which may also be accessed through the start menu. Windows 7: Start→All Programs→NH Research→CAL Series→SCPI Test Panel Windows 10: Start→NH Research→SCPI Test Panel...

  • Page 11: Operation

    IMPORTANT! This calibrator requires use and calibration in a controlled environment. It is specified to be accurate at 23 deg C +/- 5 deg C. The Calibrator facilitates calibration of NHR Test Equipment. The Calibrator relies on an external traceable reference meter for ALL voltage measurements and for extreme low current (<= 1A) measurements.

  • Page 12: Nhr 9500 Series Calibration

    NHR 9500 Series Calibration Pre-Requisites 1. The NHR 9500 Calibration software. It is included in the 9500 Instrument Software Package (PN 1906687) and after installation, can be found as a shortcut in the Windows Start Menu: All Apps \ NH Research \ NHR 9400-9500 Utilities \ NHR 9500 Calibration.

  • Page 13: Nhr 9500 Calibration Software

    NHR unit Series NHR 9500 Calibration Software Launch “NHR 9500 Calibration” which is installed as part of the NHR 9500 Software Package. The shortcut is found at: Start Menu / All Apps / NH Research / NHR 9500 Calibration. The software is a series of pages which guide you through the calibration 1.
  • Page 14 2. Configure Equipment page: a. Select the calibration equipment i. Fully hands-off calibration can only be completed if using the NHR Cal300. ii. Manual calibration is possible by choosing “User Fixturing”. However, this is a very time consuming and tedious method.
  • Page 15 Programmer’s Reference Manual NHR unit Series 3. Connect the NHR Cal300 Calibrator page: a. The Cal300 is a LAN SCPI device that needs to be connected to the PC running the calibration software (see section “Communications” for more information). b. Enter the appropriate resource id string and press “Connect”...
  • Page 16 NHR unit Series Programmer’s Reference Manual 4. Configure the 9500 page: e. IMPORTANT: The 9500 MUST be powered up in calibration mode. i. Start with the unit off ii. Set option switch 2 on the back of the 9500 ON iii.
  • Page 17 Programmer’s Reference Manual NHR unit Series 5. Prepare for Calibration page: g. Select Action i. Calibrate Only – Perform the steps to calibrate the system. A verification test will not be run. ii. Verify Only – Perform a calibration verification only. No calibration is performed.
  • Page 18 NHR unit Series Programmer’s Reference Manual 6. Execution – This screen will display the current activity and the log of all steps performed. After the calibration is complete, the report can be saved to an .RTF file by selecting the “Save to File”...
  • Page 19 Programmer’s Reference Manual NHR unit Series 7. Finished page: a. This page displays all of the calibration factors in the 9500. It will show the previous calibration factors and the new calibration factors. b. Where there is a difference between the previous (“Was”) and the new (“Is”) the new will be highlighted in some color.
  • Page 20 NHR unit Series Programmer’s Reference Manual 8. Power off the 9500 9. Power off the Cal300 10. Disconnect all calibration equipment 11. Turn 9500 option switch 2 to OFF 12. The unit is now ready for use. INTERNAL - NI CONFIDENTIAL...

  • Page 21: Nhr 9400 Series Calibration

    4. The NHR Cal300 cable set appropriate to your model 9400 5. If your 9400 is a single channel model (4kW), you will also need the NHR Cal300 Load Refer to the following diagrams and hook up the 9400 as shown.
  • Page 22 NHR unit Series Programmer’s Reference Manual Figure 3 - Single Channel 9400 Hook-Up INTERNAL - NI CONFIDENTIAL...

  • Page 23: Nhr 9400 Calibration Software

    NHR unit Series NHR 9400 Calibration Software Launch “NHR 9400 Calibration” which is installed as part of the NHR 9400 Software Package. The shortcut is found at: Start Menu / All Apps / NH Research / NHR 9400 Calibration. The software is a series of pages which guide you through the calibration 3.
  • Page 24 4. Configure Equipment page: d. Select the calibration equipment i. Fully hands-off calibration can only be completed if using the NHR Cal300 or the NHR 9400 Calibrator. ii. Manual calibration is possible by choosing “User Fixturing”. However, this is a very time consuming and tedious method.
  • Page 25 Programmer’s Reference Manual NHR unit Series 13. Connect the NHR Cal300 Calibrator page: The Cal300 is a LAN SCPI device that needs to be connected to the PC running the calibration software (see section “Communications” for more information). m. Enter the appropriate resource id string and press “Connect”...
  • Page 26 NHR unit Series Programmer’s Reference Manual 14. Configure the 9400 page: p. IMPORTANT: The 9400 MUST be powered up in calibration mode. i. Start with the unit off ii. Set option switch 2 on the back of the 9400 ON iii.
  • Page 27 Programmer’s Reference Manual NHR unit Series 15. Prepare for Calibration page: r. Select Action i. Prepare a New Auxiliary -- This is a quick method to add an auxiliary to an existing system without requiring any external calibration equipment. It is used to update the calibration factors in the master for a newly added auxiliary.
  • Page 28 NHR unit Series Programmer’s Reference Manual INTERNAL - NI CONFIDENTIAL...
  • Page 29 Programmer’s Reference Manual NHR unit Series 16. Execution – This screen will display the current activity and the log of all steps performed. After the calibration is complete, the report can be saved to an .RTF file by selecting the “Save to File”...
  • Page 30 NHR unit Series Programmer’s Reference Manual 17. Finished page: a. This page displays all of the calibration factors in the 9400. It will show the previous calibration factors and the new calibration factors. b. Where there is a difference between the previous (“Was”) and the new (“Is”) the new will be highlighted in some color.
  • Page 31 Programmer’s Reference Manual NHR unit Series 18. Power off the 9400 19. Power off the Cal300 20. Disconnect all calibration equipment 21. Turn 9400 option switch 2 to OFF 22. The unit is now ready for use. INTERNAL - NI CONFIDENTIAL...

  • Page 32: Nhr 9200 / 9300 Calibration

    NHR 9200 / 9300 Calibration Pre-Requisites 1. The NHR 9200 / 9300 Calibration software. It is included in the “9200-9300 IVI System Software” (PN 1906647) or “9200-9300 SCPI System Software” (PN 1906693). After installation, it can be found as a shortcut in the Windows Start Menu: All Apps \ NH Research \ 9200-9300 Calibrator.
  • Page 33 Programmer’s Reference Manual NHR unit Series 3. Press OK to close. 4. Launch “Windows Start Menu / All Apps / NH Research / System Configurator” 5. Note the name of the currently loaded file (you will need to know this to restore when completed).
  • Page 34 NHR unit Series Programmer’s Reference Manual 8. Make this the default configuration. 9. Close the configurator by clicking the OK button. 10. Launch “Windows Start Menu / All Apps / NH Research / Port Configurator” 11. Set the system Online by checking the “Online” checkbox.
  • Page 35 Programmer’s Reference Manual NHR unit Series 13. Launch “Windows Start Menu / All Apps / NH Research / System Configurator” 14. Select menu item “Autofill / Setup” 15. Drag the “EthernetHost Port” to the “Current Configuration” pane. 16. Select the menu item “Autofill / Search for Devices” and follow the dialogs (except defaults) for devices found.
  • Page 36 NHR unit Series Programmer’s Reference Manual 17. Find the reference DMM you are using in the “Supported Devices” pane and drag it to the “Current Configuration” pane. 18. Select the host. 19. Then configure the meter. Pay particular attention to the GPIB Primary Instrument Address and whether you are using the front or rear terminals.
  • Page 37 Programmer’s Reference Manual NHR unit Series 20. Create a logical name 21. Press Ok to save the logical name. 22. Press OK to exit the configurator. NOTE: After calibration is complete, you should re-launch the System Configurator and load the previous configuration file and set it to the default.
  • Page 38 NHR unit Series Programmer’s Reference Manual INTERNAL - NI CONFIDENTIAL...

  • Page 39: Wiring Diagrams - 9200-9300 Connected To Cal R440 Loads In Parallel

    Programmer’s Reference Manual NHR unit Series Wiring Diagrams – 9200-9300 Connected to Cal R440 Loads in Parallel R440 CAL LOAD(x2) UUT POWER CABLES 9200 or 9300 UUT RETURN CABLE (x2) Current Transducer Vout INTERNAL - NI CONFIDENTIAL...

  • Page 40: Wiring Diagrams - 9200-9300 Connected To Cal R440 Loads In Series

    NHR unit Series Programmer’s Reference Manual Wiring Diagrams – 9200-9300 Connected to Cal R440 Loads in Series R440 CAL LOAD R440 CAL LOAD UUT POWER CABLES SERIES LOAD CABLE 9200 or 9300 UUT RETURN CABLE (x2) Current Transducer Vout INTERNAL - NI CONFIDENTIAL...

  • Page 41: Nhr 9200-9300 Calibration Software

    GPIB address. b. Pick the load being used. The choices are the “NHR Cal R440 Load” or “Other”. If using the “Other” load, it must be capable of being programmed in constant voltage mode with an appropriate power and current rating for the unit being calibrated.
  • Page 42 NHR unit Series Programmer’s Reference Manual iv. 4960 1. Load minimum current >= 40A 2. Load minimum power >= 4500W 3. Load minimum voltage >= 112.5V v. 9300 (low range) 1. Load minimum current >= 334A 2. Load minimum power >= 37500W 3.
  • Page 43 Programmer’s Reference Manual NHR unit Series 8. Verification will start (if selected). Again, follow the on-screen prompts. INTERNAL - NI CONFIDENTIAL...

  • Page 44: Nhr 47Xx Calibration

    NHR 47XX Calibration Pre-Requisites 1. The NHR 47XX Calibration software called CalSCPI which is included in the (PN 1906713). After installation, it can be found as a shortcut in the Windows Start Menu: All Apps \ NH Research \ CalSCPI.

  • Page 45: Calibration Software

    Calibration Software If not already installed, install NHR CalSCPI software (NH PN 1906713). Launch “CalSCPI”. The shortcut is found at: Start Menu / All Apps / NHR Calibration. Figure 1 - CalSCPI Main Screen The application has a settings section on the top. Settings are displayed on two tabs. The Cal Setup tab is where the calibration UUT and calibration equipment is defined.
  • Page 46 NHR unit Series Programmer’s Reference Manual Properties Tab Figure 2 - CalSCPI Properties Tab • Set the path where PASS and FAIL results will be stored. They can be the same directory or separate. If the directory specified doesn’t exist, it will be created.
  • Page 47 Programmer’s Reference Manual NHR unit Series If you have problems connecting, the most likely issues are: • Wrong IP address • The PC running the CalSCPI software is on a different subnet than the UUT. For example, if the PC is at 192.168.100.220 it CANNOT talk to a device at 192.168.0.17. The first three groups MUST match.
  • Page 48 NHR unit Series Programmer’s Reference Manual Cal Setup Tab – Current Reference Figure 5 - Cal Setup Tab -- Current Reference During calibration, current must be measured. This setup allows you to choose the type of meter for automated control, or you can use any suitable meter and enter the readings manually.
  • Page 49 If using a shunt or other current transducer, select “Use Generic Shunt” and enter the appropriate data. If using a Cal300, select “Use NHR Cal Series” and enter the IP address of the Cal300. Then press the “Connect” button. If all goes well, the button should turn green.
  • Page 50 NHR unit Series Programmer’s Reference Manual Figure 8 - Power Supply Requirements After continuing, the calibration will begin. Prompts are displayed when the one of the power supplies are to be connected. Carefully read and COMPLY with the dialog BEFORE continuing.
  • Page 51 Programmer’s Reference Manual NHR unit Series Everything written in the results log will be written to an .RTF file at the end of the run. The file will be written to either the pass or fail path (as defined in the properties tab). The file name will be: <prefix>...
  • Page 52 NHR unit Series Programmer’s Reference Manual Verification Verification is the process to make sure that the unit is passing the specifications throughout the operating range. The voltage will be stepped from 10 to 100% in 10 steps and verified at each setpoint.

  • Page 53: Other Calibration

    Programmer’s Reference Manual NHR unit Series Other Calibration Measuring UUT Voltage MODE UUTV The calibrator will route the UUT V sense point to the DMM V In terminal. Measuring voltage on the Reference DMM will read the voltage at the V Sense point.

  • Page 54: Measuring Very Low (Energy Star) Current

    MODE VREFPOS and MODE VREFNEG The calibrator has two low (approximately +2.7 V DC and -2.7 V DC) reference voltage outputs. These are designed to be used to calibrate the analog ADC input on the NHR 9400. INTERNAL - NI CONFIDENTIAL...
  • Page 55 Programmer’s Reference Manual NHR unit Series The calibrator will route the positive or negative reference to both J5 and the DMM V In terminal. Measuring voltage on the DMM will read the reference voltage. INTERNAL - NI CONFIDENTIAL...

  • Page 56: Scpi Programming

    The unit responds to IEEE 488.2 standard-based common interface commands used for reporting, synchronization & internal operating status. The CAL series also responds to the optional 488.2 commands which control triggers, power-on conditions, and stored operating parameters. *CLS (Clear Status) Command clears the error message queue and multiple status registers Registers cleared: Status Byte, Event Status, and Questionable Status.

  • Page 57: Idn (Identify)

    Programmer’s Reference Manual NHR unit Series Event Status Register Bit Status Description Hex Value Dec Value Operation Complete 0x01 Request Control 0x02 Query Error 0x04 Device Dependent Error 0x08 Execution Error 0x10 Command Error 0x20 User Request 0x40 Power On...

  • Page 58: Rst (Reset)

    NHR unit Series Programmer’s Reference Manual *RST (Reset) Command resets the module to initial power on state. Command Parameters None *SRE (Service Request Enable) This command sets the condition of the Service Request Enable Register. This register determines which bits from the Status Byte Register (see *STB for its bit configuration) are allowed to set the Master Status Summary (MSS) bit and the Request for Service (RQS) summary bit.

  • Page 59: Tst (Selftest)

    Programmer’s Reference Manual NHR unit Series OPER Operation event summary (See STATus:OPERation) 0x80 Bit is not defined in SCPI standard and is implemented as described *TST (Selftest) Query causes the module to reset, run a self-test, and returns the self-test result.

  • Page 60: Status:questionable:condition

    NHR unit Series Programmer’s Reference Manual The Questionable Status register is a read-only register that holds (latches) all questionable status events that pass into it until it has been read. Reading the Questionable Event register clears it. Query Parameters None Query Returns <NR1>...

  • Page 61: System:error

    Programmer’s Reference Manual NHR unit Series The Operation Enable register determines which events will set the QUES (bit 3) of the Status Byte Register (see *STB) The Operation Enable register has the same bit-level definitions as the Questionable Register (see STATus: QUEStionable).
  • Page 62 NHR unit Series Programmer’s Reference Manual Query Returns <NR1>{,<NR1>} INTERNAL - NI CONFIDENTIAL...

  • Page 63: [Instrument:]Capabilities:estar:resistance:list

    Programmer’s Reference Manual NHR unit Series [INSTrument:]CAPabilities:ESTar:RESistance:LIST Query returns a list of ESTAR resistors. Use the index into this list to set the desired range in INST:MODE. Query Parameters None Query Returns <NR1>{,<NR1>} [INSTrument:]CAPabilities:LOAD:POWer:LIST Query returns a list of maximum continuous power (W) for the optional external load resistors. Use the index into this list to set the desired range in INST:LOAD.

  • Page 64: Settings Commands

    NHR unit Series Programmer’s Reference Manual Settings Commands [INSTrument:]MODE WARNING! Do NOT switch XDCR to a range less than the actual UUT current. Command programs the operating MODE of the unit. Query returns theselected mode. Command Parameters <mode>[,<range index>] Query Parameters None Query Returns <mode>[,<index>]...

  • Page 65: [Instrument:]Xdcr:vpa

    Programmer’s Reference Manual NHR unit Series UUTA DC = (XDCR:GAIN:DC?) * DMMV / (XDCR:VPA? <index>) To calculate the gain: 1. Set the transducer to the lowest range. “MODE XDCR,0” 2. Apply a reference current at approximately 90% of range (REFA) 3.

  • Page 66: Calibration Commands

    NHR unit Series Programmer’s Reference Manual Calibration Commands CALibration:DATE? This query returns the last date the calibration factors were saved to flash. Query Parameters None Query Returns <NR1>,<NR1>,<NR1>,<NR1>,<NR1>,<NR1> representing year, month, day, hour, minute, second CALibration:SAVE Use XDCR:GAIN:AC and XDCR:GAIN:DC, commands to set the new cal factors in RAM then use this command to saves the calibration factors to flash.

  • Page 67: Calibration

    1. Power up NHR CAL Series 2. Connect a PC with the NHR SCPI Test software installed or with any other communications terminal. In the following, SEND “this is the scpi command” is a SCPI command sent via LAN and QUERY “this is a scpi query?”...
  • Page 68 NHR unit Series Programmer’s Reference Manual b. Verify the calculated gain is between 0.98 and 1.02. If not, verify setup and repeat the calibration. c. SEND “XDCR:GAIN:AC <Gain> 13. Determine DC current values required a. QUERY “CAPabilities:XDCR:CURRent:DC:LIST?” returns the AC current ranges for the transducer.

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