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NI 9207 Calibration Procedure

Documentation

Consult the following documents for information about the NI 9207, NI-DAQmx, and your 
application software. All documents are available on 

ni.com

 and help files install with the 

software.

Test Equipment

Table 1 lists the equipment recommended for the performance verification and adjustment 
procedures. If the recommended equipment is not available, select a substitute using the 
requirements listed in Table 1.

NI cDAQ-9174/9178 USB Chassis Quick Start

NI-DAQmx installation and hardware setup

NI 9207 Operating Instructions and Specifications

NI 9207 specific information, specifications, and calibration interval

NI DAQmx Help

Information about creating applications that use the NI-DAQmx driver

LabVIEW Help

LabVIEW programming concepts and reference information about NI-DAQmx 
VIs and functions

NI-DAQmx C Reference Help

Reference information for NI-DAQmx C functions and NI-DAQmx C properties

NI-DAQmx .NET Help Support for Visual Studio

Reference information for NI-DAQmx .NET methods and NI-DAQmx .NET 
properties, key concepts, and a C enum to .NET enum mapping table

Table 1.  

Recommended Equipment

Equipment

Recommended 

Model

Minimum Requirements

Source

Fluke 5700A

Use a source with an accuracy 

100 ppm.

cDAQ Chassis

NI cDAQ-9178

Connection 

Accessory

NI 9923

Summary of Contents for NI-9207

Page 1: ...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 a...

Page 2: ...rating Instructions and Specifications NI 9207 specific information specifications and calibration interval NI DAQmx Help Information about creating applications that use the NI DAQmx driver LabVIEW H...

Page 3: ...me 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 1 Install NI DAQmx 2 Ma...

Page 4: ...ode OPR 5 Acquire and average samples a Create and configure an AI voltage task on the NI 9207 according to Table 2 b Configure the AI voltage task according toTable 3 Set the ADC timing mode to high...

Page 5: ...2 Connect the NI 9207 to the calibrator as shown in Figure 2 Figure 2 Current Accuracy Connections Note If the calibrator outputs are truly floating connect the negative output to a quiet earth ground...

Page 6: ...point in Table 7 10 Disconnect the calibrator from the device 11 Repeat steps 1 through 10 for each current channel on the NI 9207 Table 5 NI 9207 Configuration for Current Accuracy Verification Input...

Page 7: ...mmended calibration voltages for the NI 9207 d Set the calibrator to a reference value determined by the array of recommended calibration voltages e Set the calibrator to Operate mode OPR f Call and C...

Page 8: ...g to Table 9 g Set the calibrator to Standby mode STBY h Repeat steps d through g for each calibration current in the array i Disconnect the calibrator from the NI 9207 Ensure that there are no connec...

Page 9: ...s which are stored in the onboard EEPROM The following accuracy table is valid for calibration under the following conditions Ambient temperature 23 C 5 C NI 9207 installed in slot 8 of an NI cDAQ 917...

Page 10: ...private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52 227 14 DFAR 252 227 7014 and DFAR 252 227 7015 Worldwide Support and Services The Nat...

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