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NI 9203 Calibration Procedure

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© National Instruments

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5

c. Start the task.
d. Read samples from the NI 9203.
e. Average the samples.
f.

Clear the task.

6. Compare the average sample to the test limits in Table 4.

7. Repeat steps through 6 for each Test Point in Table 4.
8. Set the calibrator to Standby mode (STBY).
9. Disconnect the NI 9203 from the calibrator.

Adjustment

The following performance adjustment procedure describes the sequence of operation required 

to adjust the NI 9203.

Gain Accuracy Adjustment

Complete the following procedure to adjust the gain accuracy performance of the NI 9203.
1. Set the calibrator to Standby mode (STBY).
2. Connect the NI 9203 to the calibrator. Refer to Figure for a connection diagram.
3. Adjust the NI 9203.

a. Initialize a calibration session on the NI 9203. The default password is 

NI

.

b. Input the external temperature in degrees Celsius.

Table 4.  

NI 9203 Test Limits

Input 

Range

Range (V)

Test Point

1-Year Limits

Min

Max

Location

Value (A)

Lower Limit 

(A)

Upper Limit 

(A)

Unipolar

0.000

0.020

Max

0.020000

0.019980

0.020020

0.000

0.020

Mid

0.010000

0.009988

0.010012

0.000

0.020

Min

0.000000

-0.000004

0.000004

Bipolar

-0.020

0.020

Max

0.020000

0.019969

0.020031

-0.020

0.020

Mid

0.000000

-0.000014

0.000014

-0.020

0.020

Min

-0.020000

-0.020031

-0.019969

Summary of Contents for NI 9203

Page 1: ...ication 4 Adjustment 5 Gain Accuracy Adjustment 5 Offset Accuracy Adjustment 7 EEPROM Update 7 Re Verification 7 Accuracy Under Calibration Conditions 8 Worldwide Support and Services 8 Software Calibrating the NI 9203 requires the installation of NI DAQmx 9 2 or later on the calibration system You can download NI DAQmx from ni com downloads NI DAQmx supports LabVIEW LabWindows CVI C C C and Visua...

Page 2: ...uctions and Specifications NI 9203 specific information specifications and calibration interval NI DAQmx Readme Operating system and application software support in NI DAQmx 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 ...

Page 3: ...p time of at least 10 minutes to ensure that the NI 9203 measurement circuitry is at a stable operating temperature Initial Setup Complete the following steps to set up the NI 9203 1 Install NI DAQmx 2 Make sure the NI cDAQ 9178 power source is not connected 3 Install the module in slot 8 of the NI cDAQ 9178 chassis Leave slots 1 through 7 of the NI cDAQ 9178 chassis empty 4 Connect the NI cDAQ 91...

Page 4: ...e OPR 4 Set the calibrator current to a Test Point value indicated in Table 4 5 Acquire and average samples a Create and configure an AI current channel according to Table 2 b Configure the AI current channel timing according to Table 3 1 Connections when using a calibrator with a guard connection 2 Connections when using a calibrator with no guard connection Table 2 NI 9203 AI Voltage Channel Con...

Page 5: ...to adjust the gain accuracy performance of the NI 9203 1 Set the calibrator to Standby mode STBY 2 Connect the NI 9203 to the calibrator Refer to Figure 1 for a connection diagram 3 Adjust the NI 9203 a Initialize a calibration session on the NI 9203 The default password is NI b Input the external temperature in degrees Celsius Table 4 NI 9203 Test Limits Input Range Range V Test Point 1 Year Limi...

Page 6: ... and Bipolar ranges g Set the calibrator to Standby mode STBY h Repeat steps d through g for each calibration voltage in the array i Disconnect the calibrator from the NI 9203 j Close the calibration session 4 Disconnect the NI 9203 from the calibrator 5 Repeat steps 2 through 4 for each channel on the NI 9203 Table 5 Get Adjustment Points Configuration Input Range Range Min Max Unipolar 0 000 0 0...

Page 7: ...leted the NI 9203 internal calibration memory EEPROM is immediately updated If you do not want to perform an adjustment you can update the calibration date and onboard calibration temperature without making any adjustments by initializing an external calibration setting the C Series calibration temperature and closing the external calibration Re Verification Repeat the Verification section to dete...

Page 8: ...tes technical support and ensures that you receive important information updates from NI A Declaration of Conformity DoC is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity This system affords the user protection for electromagnetic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com ...

Page 9: ...oduct 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 U S Government Customers The data contained in th...

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