GE TMO2D, User Manual

Page: 39 / 102

TMO2D Digital Display User’s Manual 31
Chapter 4. Basic Programming
4.5 The Outputs Menu (cont.)
Repeat this procedure to program Output B, if desired. After entering the necessary values:
4.6 The Relays Menu
The third main menu is the Relays Menu. The TMO2D includes two or four single-pole double throw (SPDT) relays
for use in activating alarm devices or driving automatic calibration solenoid valves. The display addresses the relays as
A, B, C or D. You can configure each relay as either an alarm or as an automatic calibration relay.
If the relay is configured as an alarm, it can be programmed to trip on up to five functions, listed below, and in either
Failsafe or Non-Failsafe mode:
•
Low Gas Reading
•
High Gas Reading
•
System Fault Indicator
•
Auto Calibration Error Indicator
•
New Auto Calibration Data
If the relay is configured as an Auto-Calibration relay, the TMO2D offers two options:
•
Process/Cal Relay
•
Zero/Span Relay
If the transmitter requires a one gas offset or one gas span calibration, you need to set only one relay for
Auto-Calibration, with the Process/Cal option. However, if it requires a two-gas zero and span calibration, you must set
two relays for Auto-Calibration, one to Process/Cal and the other to Zero/Span.
Output A 20 mA Value
%0
2
[100%]:
Use the numeric keys to enter the high end value. Press [YES] to enter the value, and
[YES] again to confirm the entry.
Select Output to set:
A B [DONE]
Use the [NO] or arrow keys to select “DONE.” Press [YES] to exit.
MAIN MENU
Outputs? Press [NO] to proceed to the next Main Menu title — Relays.