Detcon FP-100 - Manual (Page 14)

Model FP-100
FP-100 Instruction Manual Rev. 0.0 Page 10 of 30
Drain
Conduit
"T" EYS Seal Fitting
DETCON, INC.
LEL
100 %
FP-100
Model 100
Figure 13 Typical Installation
NOTE: Any unused ports should be blocked with suitable ¾” male NPT plugs. Detcon
supplies one ¾” NPT male plug with each J-box enclosure. If connections are other than ¾”
NPT, use an appropriate male plug of like construction material.
2.6 Field Wiring
Detcon Model FP-100 sensor assemblies are designed to connect to a host electronic controller’s 4-20mA
input. Wiring designations are ‘PWR’, ‘GND’ and ‘MA’ (sensor signal). The maximum wire size for
termination in the Junction Box is 14 AWG.
NOTE 1: Shielded cable is required for installations where cable trays or conduit runs include
high voltage lines or other possible sources of induced interference. Separate conduit runs are
highly recommended in these cases.
NOTE 2: The supply of power should be from an isolated source with over-current protection.
Terminal Connections – with Junction Box Option
CAUTION: Do not apply System power to the sensor until all wiring is properly terminated. Refer
to Section 2.7 Initial Start Up
1. Remove the junction box cover.
2. If the sensor has the 100 Series Display option installed, unplug the display from the terminal board by
pulling the display out of the junction box. The display option plugs directly into the terminal board’s
Beau Connector.