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Calibrating Analog Outputs and Inputs 8-3

December 2003

Analog Outputs (cont.)

4. The screen will display four choices: 4 mA, 20 mA, TEST and

EXIT. Press [F1] to select “4 mA”. You must calibrate the low

end to 4 mA regardless of the type of output you are using. (If

you are using a 0-20 mA output, the TransPort extrapolates

the 0 mA point from the 4 mA calibration.)

5. Check the mA reading on the multimeter or ammeter. It

should read close to 4 mA. If it does not, use one of the

following keys to adjust the reading to 4 mA.

• Press [F1] to adjust the reading up or

• Press [F2] to adjust the reading down.

Note: If you cannot adjust the readings close enough to 4 mA,

contact the factory.

6. When you have adjusted the reading to 4 mA, press [F3] to

select “STORE.” The prompt returns you to the main CAL

menu.

7. Press [F2] to select “20 mA.”

8. Check the mA reading on the multimeter or ammeter. It

should read close to 20 mA. If it does not, use one of the

following keys to adjust the reading to 20 mA.

• Press [F1] to adjust the reading up or

• Press [F2] to adjust the reading down.

9. When you have adjusted the reading to 20 mA, press [F3] to

select “STORE.”

10. If desired, repeat the calibration procedure for Output 2.

Note: If you cannot adjust the readings close enough to 20 mA,

contact the factory.

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