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Process output procedures – Watlow Series 97 User Manual

Page 75

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Wa t l o w S e r i e s 9 7

A p p e n d i x

A . 1 3

Set RTD Calibration, 380

[r380] (Input Calibration Menu) to [`yES].

Press the Advance Key ‰ to store the 380.00

input and move to the next

prompt.

7. Rewire for operation and verify calibration.

Process Output Procedures

Equipment

• Precision volt/ammeter with 3.5-digit resolution.

Output 4 Setup and Calibration

1. Connect the correct power supply to terminals 8 and 9 (see Chapter Three

and the Appendix).

Milliamperes

2. Connect the volt/ammeter to terminals 20 (-) and 21 (+).

3. At Output Calibration 4, 4mA [4``4] (Output Calibration Menu) enter the

reading from the ammeter. The unit should stabilize within one second.
Repeat until the volt/ammeter reads 4.00mA, ±0.1mA. Press the Advance
Key ‰ to store the value and move to the next prompt.

4. At Output Calibration 4, 20mA [4`20] (Output Calibration Menu) enter the

reading from the volt/ammeter. The unit should stabilize within one
second. Repeat until the ammeter reads 20.00mA, ±0.1mA. Press the
Advance Key ‰ to store the value and move to the next prompt.

Volts

5. Connect the volt/ammeter to terminals 19 (+) and 20 (-).

6. At Output Calibration 4, 1V [4``1] (Output Calibration Menu) enter the

reading from the volt/ammeter. The unit should stabilize within one
second. Repeat until the voltmeter reads 1.00V, ±0.1V. Press the Advance
Key ‰ to store the value and move to the next prompt.

7. At Output Calibration 4, 10V [4`10] (Output Calibration Menu) enter the

reading from the volt/ammeter. The unit should stabilize within one
second. Repeat until the volt/ammeter reads 10.00V, ±0.1V. Press the
Advance Key ‰ to store the value and move to the next prompt.

8. Rewire for operation and verify calibration.