S4000C
Quick Start Guide
Mounting and Wiring
Tools Required
1. “5mm” Allen head wrench to remove enclosure lid (included with gas detector).
2. Flat-head screwdriver maximum 3/16” (5 mm) width for terminal block connections
(included with gas detector).
3. Adjustable wrench for conduit or cable gland connections (not included).
It is not necessary to seal the Model S4000C housing to maintain its explosion-proof integrity;
however, conduit runs containing wires attached to the Model S4000C’s relay contacts must be
sealed.
Information on Class I location seals can be found in the NEC, Article 501-5.
Figure 1: Outline and Mounting Dimensions
Terminal Connections
The terminal blocks (TB) are located inside the housing and can be accessed by removing the
cover. A label on the inside of the housing cover provides details of all the terminal
connections.
WARNING:
Do not c24VDC to TB1. Damage to the electronics, or sensor may
result.
It is recommended that a three-wire (red, black, white) shielded cable be used for making
power and output signal connections on the Model S4000C. The Spring Type terminal block
accepts 14 AWG to 20 AWG and the Screw Type terminal block accepts 12 AWG to 18 AWG
stranded or solid wire. Each wire should be stripped before wiring the Model S4000C Intelligent
Sensor. To connect wiring to the Spring Type terminal block, insert a screwdriver into the
orange tab and press down (Figure 2), opening the terminal. Insert the wire into the terminal
1
