Watlow 97 series - Page 75

Watlow Series 97 Appendix ■ A.13
Set RTD Calibration, 380Ω [r380] (Input Calibration Menu) to [`yES].
Press the Advance Key ‰ to store the 380.00Ω 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.