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CALIBRATION PROCEDURE
NI 9207
16-channel, ±2- mA/±10 V, 24-bit Analog Input Module
This document contains the verification and adjustment procedures for the National
Instruments 9207. For more information about calibration solutions, visit
.
calibration
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 2
Test Conditions......................................................................................................................... 3
Initial Setup............................................................................................................................... 3
Verification............................................................................................................................... 3
Voltage Accuracy Verification......................................................................................... 4
Current Accuracy Verification ......................................................................................... 5
Adjustments .............................................................................................................................. 7
Voltage Accuracy Adjustment.......................................................................................... 7
Current Accuracy Adjustment .......................................................................................... 8
EEPROM Update ..................................................................................................................... 8
Reverification ........................................................................................................................... 9
Accuracy Under Calibration Conditions .................................................................................. 9
Worldwide Support and Services ............................................................................................. 10
Software
Calibrating the NI 9207 requires the installation of NI-DAQmx 9.1 or later on the calibration
system. You can download NI-DAQmx from
LabVIEW, LabWindows
NI-DAQmx you only need to install support for the application software that you intend to use.
Français
Deutsch
ni.com/manuals
™
™
/CVI
, C/C++, C#, and Visual Basic .NET. When you install
ni.com/downloads
ni.com/
. NI-DAQmx supports
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Related Manuals for National Instruments NI 9207
Summary of Contents for National Instruments NI 9207
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Page 1: Table Of Contents
Reverification ........................... 9 Accuracy Under Calibration Conditions .................. 9 Worldwide Support and Services ..................... 10 Software Calibrating the NI 9207 requires the installation of NI-DAQmx 9.1 or later on the calibration system. You can download NI-DAQmx from . NI-DAQmx supports ni.com/downloads ™... -
Page 2: Documentation
Documentation Consult the following documents for information about the NI 9207, NI-DAQmx, and your application software. All documents are available on and help files install with the ni.com software. NI cDAQ-9174/9178 USB Chassis Quick Start NI-DAQmx installation and hardware setup... -
Page 3: Test Conditions
• Keep relative humidity below 80%. • Allow a warm-up time of at least 10 minutes to ensure that the NI 9207 measurement circuitry is at a stable operating temperature. Initial Setup Complete the following steps to set up the NI 9207. -
Page 4: Voltage Accuracy Verification
Set the calibrator voltage to a Test Point value indicated in Table 4. Set the calibrator to Operate mode (OPR). Acquire and average samples. Create and configure an AI voltage task on the NI 9207 according to Table 2. Table 2. NI 9207 Configuration for Voltage Accuracy Verification Input Range... -
Page 5: Current Accuracy Verification
-10.00000 -10.01208 -9.98792 Repeat step 5 and 6 with the ADC timing mode on the NI 9207 set to high-speed. Set the calibrator to Standby mode (STBY). Repeat steps 3 through 8 for each test point listed in Table 4. - Page 6 Clear the task. Compare the average to the limits in Table 7. Repeat steps 5 and 6 with the ADC timing mode on the NI 9207 set to high-speed. Set the calibrator to Standby mode (STBY). Repeat steps 3 through 8 for each test point in Table 7.
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Page 7: Adjustments
Initialize a calibration session on the NI 9207. The default password is Input the external temperature in degrees Celsius. Call the NI 9207 get C Series adjustment points function to obtain an array of recommended calibration voltages for the NI 9207. -
Page 8: Current Accuracy Adjustment
Initialize a calibration session on the NI 9207. The default password is Input the external temperature in degrees Celsius. Call the NI 9207 get C Series adjustment points function to obtain an array of recommended calibration currents for the NI 9207. -
Page 9: Reverification
• Ambient temperature 23 °C ± 5 °C • NI 9207 installed in slot 8 of an NI cDAQ-9178 chassis • Slots 1 through 7 of the NI cDAQ-9178 chassis are empty The test limits listed in Tables 4 and 7 are derived using the values in Note Table 10. -
Page 10: Worldwide Support And Services
NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS.
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