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National Instruments PXI-4130 Скачать руководство пользователя страница 2

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ni.com

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NI PXI-4130 Calibration Procedure

To calibrate the NI 4130, you must install the NI-DCPower instrument driver version 1.2 or later
on the Windows calibration system. You can download the latest version of NI-DCPower at

ni.com/downloads

. NI-DCPower supports LabVIEW and LabWindows

™

/CVI

™

. When you

install NI-DCPower, you need to install only the application software that you intend to use.

LabVIEW support is in the

nidcpower.llb file

, and all calibration VIs are accessible from

the NI-DCPower Calibration palette. For LabWindows/CVI users, the

nidcpower.fp

provides access to the calibration functions. Refer to Table 1 for file locations.

C function calls are valid for any compiler capable of calling a 32-bit or 64-bit DLL. Many of
the functions use constants defined in the

nidcpower.h

file. To use these constants in C, you

must include

nidcpower.h

in the calibration program.

For more information about calibration VIs and functions, refer to the

Programming with

NI-DCPower

book in the

NI DC Power Supplies and SMUs Help

. The

NI DC Power Supplies

and SMUs Help is

accessible at

Start»All Programs»National Instruments»NI-DCPower»

Documentation»NI DC Power Supplies and SMUs Help

.

Table 1.

Calibration File Locations (NI-DCPower 1.2 or Later)

File Name and Location

Description

IVI\Bin\nidcpower_32.dll

NI-DCPower driver containing the entire
NI-DCPower API, including calibration functions.

IVI\Bin\nidcpower_64.dll

NI-DCPower driver containing the entire
NI-DCPower API, including calibration functions.

IVI\Lib\msc\nidcpower.lib

NI-DCPower library for Microsoft C containing
the entire NI-DCPower API, including calibration
functions.

<LabVIEW

>\instr.lib\

niDCPower\niDCPower.llb

LabVIEW VI library containing VIs for calling the
NI-DCPower calibration API. You can access
calibration functions from the NI-DCPower
calibration section of the LabVIEW function
palette.

IVI\Drivers\niDCPower\

nidcpower.fp

LabWindows/CVI function panel file that includes
calibration function prototypes and help on using
NI-DCPower in the LabWindows/CVI
environment.

IVI\Include\nidcpower.h

NI-DCPower header file, which you must include
in any C program accessing calibration functions.
This file includes the entire NI-DCPower API,
including calibration functions.

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Содержание PXI-4130

Страница 1: ...bration Procedures 5 Initial Setup 5 Verification 6 Verifying Voltage Programming Accuracy 8 Verifying Voltage Measurement Accuracy 10 Verifying Current Programming Accuracy 11 Verifying Current Measu...

Страница 2: ...d SMUs Help The NI DC Power Supplies and SMUs Help is accessible at Start All Programs National Instruments NI DCPower Documentation NI DC Power Supplies and SMUs Help Table 1 Calibration File Locatio...

Страница 3: ...f your application Refer to Where to Go for Support for more information NI DC Power Supplies and SMUs Getting Started Guide Contains instructions for NI DCPower installation hardware installation and...

Страница 4: ...empty slots contain filler panels For more information refer to the Maintain Forced Air Cooling Note to Users document available at ni com manuals Keep relative humidity between 10 and 90 noncondensin...

Страница 5: ...s whether the device is operating within its specified range prior to calibration 3 Adjustment Perform an external adjustment of the device that adjusts the calibration constants with respect to a kno...

Страница 6: ...Voltage programming accuracy Voltage measurement accuracy Current programming accuracy Current measurement accuracy Voltage load regulation Current load regulation Voltage line regulation Current line...

Страница 7: ...ation for Current Programming and Measurement Verification Adjustment NI 4130 DMM Calibrator Resistance Channel Range Function Range Input Impedance Resolution in Digits 0 1 A DC Current 1 A N A 6 5 N...

Страница 8: ...sure with the DMM to complete verification Take voltage measurements using the DMM at each test point and compare the result to the programmed voltage value from the Output column of Table 5 to calcul...

Страница 9: ...ming Accuracy Verification Channel Voltage Level Range V Iteration Output V Test Limit mV 0 6 1 0 4 00 2 1 5 4 75 3 3 5 50 4 4 5 6 25 5 6 7 00 1 6 1 0 1 50 2 1 5 2 01 3 3 2 52 4 4 5 3 03 5 6 3 54 6 1...

Страница 10: ...er test limits using the gain and offset listed in the Test Limit column for the iteration of channel x in Table 6 Table 6 lists tolerances instead of absolute limits because the test limit is based o...

Страница 11: ...t by the DMM Connect an NI APS 4100 auxiliary power supply for this verification procedure Refer to Figure 3 and Figure 4 for the necessary connections Table 6 NI 4130 Output Parameters and Test Limit...

Страница 12: ...m the NI 4130 in DC Voltage mode and measure with the DMM to complete verification For each iteration set the current limit of the NI 4130 to the value in the Output column of Table 7 To ensure the sy...

Страница 13: ...he Output value for the iteration of channel x in Table 7 from the output current calculated above to obtain the output error Compare the output error to the Test Limit for the iteration of channel x...

Страница 14: ...2 00 mA 1 60 A 20 mA 20 V 1 0 40 mA 10 1 A 2 5 00 mA 11 5 A 3 10 0 mA 13 0 A 4 15 0 mA 14 5 A 1 20 mA 20 V 20 V 5 20 0 mA 16 0 A 20 V 6 0 40 mA 10 1 A 7 5 00 mA 11 5 A 8 10 0 mA 13 0 A 9 15 0 mA 14 5...

Страница 15: ...130 mA 9 150 mA 0 145 mA 10 200 mA 0 160 mA 2 A 20 V 1 40 0 mA 1 05 mA 2 0 5 A 1 60 mA 3 1 0 A 2 70 mA 4 1 5 A 4 68 mA 5 2 0 A 8 40 mA 20 V 6 40 0 mA 1 05 mA 7 0 5 A 1 60 mA 8 1 0 A 2 70 mA 9 1 5 A 4...

Страница 16: ...tput values other than 0 connect the NI 4130 channel x to the DMM or to the Fluke 5700A 5720A 5730A calibrator as illustrated in Figure 3 or Figure 4 When applicable configure the Fluke 5700 5720A 573...

Страница 17: ...it Range Voltage Level Range V Voltage Level V Iteration Output Test Limit of reading offset 0 1 A 6 0 1 350 mA 0 15 4 mA1 6 2 350 mA 3 700 mA 1 200 A 20 0 1 50 0 A 0 03 0 02 A 20 2 50 0 A 3 0 10 mA 4...

Страница 18: ...0 03 2 0 A 8 15 0 mA 9 20 0 mA 200 mA 0 1 50 0 mA 0 03 40 A 20 2 50 0 mA 3 100 mA 4 150 mA 5 200 mA 20 6 50 0 mA 7 100 mA 8 150 mA 9 200 mA Table 8 NI 4130 Output Parameters and Test Limits for Curren...

Страница 19: ...ment Verification or Current Measurement Verification steps may result in a failure of the Load Regulation Verification steps Connect the NI APS 4100 to the Aux Power Input connections for load regula...

Страница 20: ...ram 1 For each test connect the first specified resistance R1 to the specified channel of the NI 4130 2 While taking a current measurement with the NI 4130 I1 use the DMM to measure the voltage across...

Страница 21: ...ents 21 Table 10 NI 4130 Voltage Load Regulation Verification Points Channel V Range V Level I Range I Limit Load R 1 Load R 2 Measured Voltage Change Limit V Voltage Change V I 1 A V 1 V I 2 A V 2 V...

Страница 22: ...rification Connection Diagram Complete the following steps to verify current load regulation 1 For each test connect the first specified resistance R1 to the specified channel of the NI 4130 2 While t...

Страница 23: ...ments I1 I2 to calculate the Current Change The test passes if the Current Change falls within the calculated Current Change Limit Table 11 NI 4130 Current Load Regulation Current Change Limit Formula...

Страница 24: ...el V Range I Range V Limit I Level Load R 1 Load R 2 Measured Current Change Limit A Current Change A I 1 A V 1 V I 2 A V 2 V 0 6 V 1 A 6 V 500 mA 10 4 1 20 V 200 A 20 V 100 A 180 k 20 k 1 20 V 2 mA 2...

Страница 25: ...ning these measurement accuracy tests Voltage Line Regulation To verify voltage line regulation use the NI PXI 4130 in constant voltage mode and confirm that the output voltage change falls within cal...

Страница 26: ...ange Limit using the formula in Table 13 7 Subtract the two voltage measurements V1 V2 to calculate the Voltage Change The test passes if the Voltage Change falls within the calculated Voltage Change...

Страница 27: ...tional Instruments 27 Table 14 NI PXI 4130 Voltage Line Regulation Verification Points Channel V Range V Level I Range I Limit V ext1 V ext2 Measured Voltage Change Limit V Voltage Change V V 1 V V 2...

Страница 28: ...ble 16 2 Set the NI 4130 to output the current specified in Table 16 3 Use the DMM to measure the current across the output of the specified channel of the NI 4130 I1 4 Change the external variable po...

Страница 29: ...the calculated Current Change Limit Table 16 NI 4130 Current Line Regulation Verification Points Channel V Range I Range V Limit I Level V ext1 V ext2 Measured Current Change Limit A Current Change A...

Страница 30: ...it of 100 mA generate 10 V in the 20 V range 4 Measure the HI Lead Drop with the DMM DMM Measurement 1 from the HI terminal of the NI 4130 to the HI side of the 1 k resistor 5 Measure the LO Lead Drop...

Страница 31: ...ruments 31 Table 17 NI 4130 Remote Sense Output Verification Points V Range V Level I Range I Limit Measured Load Voltage V Measured HI Lead Drop V Measured LO Lead Drop Load Voltage Upper Limit V Loa...

Страница 32: ...wer_InitExtCal function to initiate a special type of NI DCPower session The default calibration password is NI 2 Configure the instrument Call a series of standard NI DCPower VIs functions specific t...

Страница 33: ...to skip adjustment run the niDCPower Initialize External Calibration VI and end with the niDCPower Close External Calibration VI with action set to Commit to update the calibration date and onboard c...

Страница 34: ...8 NI 4130 Output Parameters for Voltage Programming Accuracy Adjustment Channel Iteration Voltage Level Range V Output Current Limit A 0 1 6 0 V 0 5 2 3 V 3 6 V 1 1 6 1 mV 2 3 V 3 6 V 4 0 1 mV 5 3 V 6...

Страница 35: ...measurement with the DMM Set the Samples to Average property to 300 Use the niDCPower Cal Adjust Voltage Measurement VI niDCPower_ CalAdjustVoltageMeasurement function to calculate the new calibratio...

Страница 36: ...tage measurement you recorded with the DMM by the resistance measurement you recorded from the calibrator to calculate the output current For the 1 A current range of channel 0 and the 2 A current ran...

Страница 37: ...acy Adjustment Channel Current Limit Range Voltage Level Range Voltage Level Iteration Output 0 1 A 6 V 6 V 1 20 mA 2 350 mA 3 700 mA 1 200 A 20 V 20 V 1 2 00 A 2 24 0 A 3 46 0 A 4 68 0 A 5 90 0 A 6 1...

Страница 38: ...10 2 00 mA 20 V 11 20 0 A 12 0 240 mA 13 0 460 mA 14 0 680 mA 15 0 900 mA 16 1 12 mA 17 1 34 mA 18 1 56 mA 19 1 78 mA 20 2 00 mA 20 mA 20 V 1 0 200 mA 2 2 40 mA 3 4 60 mA Table 20 NI 4130 Output Param...

Страница 39: ...A 9 17 8 mA 10 20 0 mA 20 V 11 0 200 mA 12 2 40 mA 13 4 60 mA 14 6 80 mA 15 9 00 mA 16 11 2 mA 17 13 4 mA 18 15 6 mA 19 17 8 mA 20 20 0 mA Table 20 NI 4130 Output Parameters and Test Limits for Curren...

Страница 40: ...0 0 mA 6 112 mA 7 134 mA 8 156 mA 9 178 mA 10 200 mA 20 V 11 2 00 mA 12 24 0 mA 13 46 0 mA 14 68 0 mA 15 90 0 mA 16 112 mA Table 20 NI 4130 Output Parameters and Test Limits for Current Programming Ac...

Страница 41: ...4 680 mA 5 900 mA 6 1 12 A 7 1 34 A 8 1 56 A 9 1 78 A 10 2 00 A 20 V 11 20 0 mA 12 240 mA 13 460 mA 14 680 mA 15 900 mA 16 1 12 A 17 1 34 A 18 1 56 A 19 1 78 A 20 2 00 A Table 20 NI 4130 Output Parame...

Страница 42: ...function to calculate the new calibration coefficients Call this VI or function once per range For the 200 A 2 mA 20 mA and 200 mA current ranges of channel 1 divide the voltage measurement you recor...

Страница 43: ...Measurement Accuracy Adjustment Channel Current Limit Range Voltage Level Range Voltage Level Iteration Output 0 1 A 6 V 0 V 1 350 mA 6 V 2 350 mA 3 700 mA 1 200 A 20 V 0 V 1 200 A 20 V 2 20 V 3 2 mA...

Страница 44: ...is your complete resource for technical support At ni com support you have access to everything from troubleshooting and application development self help resources to email and phone assistance from...

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