Verifying The Alarm Indicators And Relays; Gas High Alarm - GE Hydran 201 i Instruction Manual

Chapter 8 • Hydran 201Ci-1 Installation
23. Verify the H201Ci-1's display reads 1999 ppm.
Note: The maximum value of the Hydran 201Ci-1's display scale is 1999 ppm. If the signal
is over scale, the display indicates 1... when the operation mode is set to Force 100 %.
24. Verify the ammeter reads 20.00 ± 0.40 mA.
25. Use the UP, DOWN and ENTER keys to force the output to Off.
26. Verify that:
• The H201Ci-1's display is blank.
• The analog output drops to 0.00 ± 0.10 mA.
• The System OK indicator (yellow, DS11; item 16 in Figure 3-7 on page 3-12) is off.
27. Use the UP, DOWN and ENTER keys to return the output to Normal.
28. Verify the signal of the analog output returns to its former value.
29. When all is done, push END.
30. Disconnect the ammeter.
8.2.4

Verifying the Alarm Indicators and Relays

The steps described in this Section may be used during the Hydran 201Ci-1 verification,
maintenance and troubleshooting procedures; certain steps may therefore not apply to your
particular situation. Perform all procedures (from Section 8.2.4.1 on page 8-6 to
Section 8.2.4.6 on page 8-9).
The alarm relays are verified by observing the LED's on the H201Ci-1's circuit board and
by connecting an ohmmeter to the main terminal block on the H201Ci-1 (item 6 in
Figure 3-6 on page 3-11).
8.2.4.1

Gas High Alarm

1. In the Hydran 201Ti, access the submenu H201Ti V2.2x;Relays/Analog.
2. Access the submenu Relays/Analog;GasH Relay.
8-6 Rev. 6, March 2011 Part 17997