Detcon 971-042200-00L - Manual (Page 2)

1 1..0 0 D DE ES SC CR RIIP PT TIIO ON N
The Detcon Model 971-04220-00L is a 220VAC powered gas detection system that provides a remote gas sample to an
independent sensor assembly. The sensor assembly, discussed in the attached sensor manual, is specified at time of order
as to gas and range of detection. The NEMA 4X rating is by definition raintight and therefore is suitable for outdoor
location in electrically non-hazardous environments.
The enclosure houses a 24 VDC power supply, flow pump and flow fault detection circuit. A motherboard provides
lugless field wiring terminals which include: 220 VAC power input, 24 VDC battery backup power input and 4-20 mA
signal output. Internal panel mount fuses are provided for VAC and VDC power.
A power switch, power indicator lamp and a flow fault indicator lamp are mounted on the hinged gasketed door.
Externally mounted flow controls include a selector valve for sample and calibration and a flow meter with adjustable
valve. An externally mounted moisure filter is provided for the gas sample input.
1 1..1 1 IIN NS ST TA AL LL LA AT TIIO ON N
1. Securely mount the enclosure in accordance with the drawing below. Mounting holes are 5/16" diameter.
2. Install a length of tubing from the desired sample point to the sample port as shown below. Sample draw tubing should be
Detcon Model 971-042200-00L Gas Detection System PG.2
10.5"
11.5"
19.5"
19.5"
20.5"
22"
0
100
200
300
400
500
Mounting Holes
.312" Dia.
1/4" Stainless
Steel Tubing
Max Distance 150 ft.
CAL PORT
SET
FLOW
SAMPLE
PORT
detcon inc.
HOUSTON, TEXAS
SAMPLE DRAW GAS DETECTION SYSTEM