Table 1: Wiring Chart - General Monitors IR400 Manual

Wiring Connections
TERMINAL WIRE COLOR
1 BLACK
2 GREEN
3 RED
4 WHITE
5 BLUE
6 WHT/BLU
7 BROWN
8 -
9 -
10 -
•
NOTE: Power should remain disconnected until all other wiring connections are made.
Power Connections
To supply power to the IR400, connect the red lead from the IR400 to the +24 VDC terminal on
the power supply. Connect the black lead from the IR400 to the power supply Common. Refer
to the manual of the power source being used, for more detailed instructions.
•
NOTE: If the Model IR400 is being used with a +24 VDC power supply and an
industrial analog to digital (A/D) converter, then the negative supply (Common) of all
three must be connected.
Applying Power
Before applying power to the system for the first time, all wiring connections should be checked
for correctness. Upon initial power-up or after a fault condition has been corrected, the unit will
enter a start-up mode for 2 minutes before normal operation. IR400 Ethylene start-up can take
up to 10 minutes. As a unit warms up, output may briefly be negative.
After power is applied, the IR400 should be allowed to stabilize for approximately 60 minutes
while the unit attains the proper operating temperature. After stabilization, it is recommended
that the IR400 be zeroed, per the procedure in section 4.1 (step 1 only). A gas check should
then be performed to ensure that the unit is operating properly. Use the General Monitors Gas
Check Kit (P/N 32548) to perform this check.
SIGNAL
COM
FIELD GROUND (FG)
+24 V
4-20 mA
MOD1+
MOD1 -
CAL
MOD2+ (no connection for IR400)
MOD2 - (no connection for IR400)
No Connection

Table 1: Wiring Chart

3
Model IR400