Detcon TP-424C - Manual (Page 8)

Local Electrical Codes
Sensor and transmitter assemblies should be installed in accordance with all local electrical codes. Use
appropriate conduit seals. Drains & breathers are recommended. The sensor assemblies are designed to
meet NEC and CSA requirements for Class I; Div. 1, Groups B, C,D environments.
Note: An appropriate conduit seal must be located within 18" of the sensor assembly. Crouse Hinds type
EYS2 or EYD2 or equal are suitable for this purpose.
Installation Procedure
a) Remove the junction box cover and un-plug the control transmitter
b) Securely mount the sensor junction box in accordance with recommended practice. See dimensional
drawing (Fig. 3).
c) Observing correct polarity, terminate 3 conductor field wiring to the sensor base connector board (see
figure #4).
d) Replace the plug-in transmitter module and junction box cover.
Detcon Model TP-424C Hydrogen Sulfide Sensor PG.8
4 3/4"
3/4" NPT
1/4" Dia.
Mounting Holes
7"
6 1/8"
5 1/2"
3/4" NPT
Rainshield/
Splashguard
2"
2 1/8"
BLUE
YELLOW MA
24VDC
To Controller
Terminals
BLACK
WHITE
Sensor
–
+
4-20MA