Franklin Fueling Systems LS500 Auto Learn Line Leak Detection Installation & Users Guide - Manual (Page 7)

7
Intrinsically Safe LS500 Installation
Note: The Intrinsically Safe 4-20mA Input Module has a BLUE face.
Warning
Lockout and tag circuit breakers, and disconnect console power wiring before installing or servicing
any system wiring.
Warning DO NOT make transducer wiring connections with power connected to the console or any module.
Caution Do not run intrinsically safe (IS) wiring and non-intrinsically safe (non-IS) wiring in the same conduit.
Caution Do not use explosion-proof transducers (TS-LS500E) with intrinsically safe LS500.
Note: LS500 must be installed in accordance with the national electrical code, ANSI / NFPA 70, CEC or other applicable
national or local codes.
1. Pull the wiring through the intrinsically safe conduits that will be used for the TS-LSU500 transducers.
2. Mount the TS-LSU500 in the Leak Detector Port of the STP housing. (As outlined in the Transducer Installation
Section above).
3. The TS-LSU500 wiring must enter the console in IS conduit through a knockout on the IS side of the barrier.
Secure each pair of transducer wires to a single channel on the 4-20mA Input Module. Always start at the first
available channel and do not skip channels. For example, if channels one through three are already being used
for another application channel 4 must be used. Be sure to connect the wires to the correct polarity (+/-). If the
transducer is wired backwards it will not function.
Figure 3 – 4-20 mA Input Module Wiring
4-20mA Input
Module
RUN
ERR
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
- (BLK)
+ (RED) Tank Pressure Sensor
- (BLK)
+ (RED)
LS-500
Hazardous Location
Class I, Division 1, Group
D, Group IIA, Zone 0
Non-Hazardous
Location
Intrinsically Safe Conduit
(Blue)