Instruction manual

Model 5100-02-IT Combustible Gas Sensor Module
Page: 11
6. Carefully return the transmitter to the enclosure installing it over the two standoffs. Tighten the
retaining screws into the standoffs.
P1 FUNCTION P2 FUNCTION
1 High Alarm Relay NC 1 Power
2 High Alarm Relay NO 2 Signal
3 High Alarm Relay COM 3 Ground
4 Low Alarm Relay NC 4 N/A
5 Low Alarm Relay NO 5 N/A
6 Low Alarm Relay COM 6 4-20 mA output -
7 Trouble Relay NC* 7 4-20 mA output +
8 Trouble Relay NO* 8 RS-485 Ground
9 Trouble Relay COM 9 RS-485 (-) (B)
10 Digital Input SW+ 10 RS-485 (+) (A)
11 Digital Input SW-
*Trouble relay is fail safe so it is energized for normal operation. Functions
are labeled for normal operation.
Table 3-1
Sensor Module External Interfaces
7. Establish the module address according to section 3.5.
NOTE
The warm-up period is 3 minutes from power on.