Wiring And Settings; Operation And Stabilization - Emerson Dixell GDS41 Installing And Operating Instructions

4.1 WIRING AND SETTINGS

ITEMS
Enclosure Access
Power
Output
Relay Set Point
Time Delay
Audible Alarm

4.2 OPERATION AND STABILIZATION

On powering up, the Gas Sensor will sense for the presence of gas after an initial warm-up delay
of 5 minutes. The green LED will flash at 1 second intervals during the warm-up.
In an alarm condition:
•
green LED stays on and the red LED is on
•
audible alarm operates (if not disabled and after delay, if set).
•
relay output activates (after a delay, if set)
•
V and I output changes proportionally with gas concentration.
In a fault condition:
•
green LED will be off and the red LED will be on
•
voltage/current fault output will activate:
o
2mA on the 4-20mA output
o
0.5V on the 1-5V output
o
1.0V on the 2-10V output.
The typical time to stabilize the Gas Sensors is 1÷3 minutes.
1592038700 Gas Leak Detector GB 16.09.2016
To open the standard sensor enclosure, turn the cable clamp
1/2 turn counter-clockwise to loosen the internal gland nut,
depress the clip on top of the enclosure and open.
Reverse to close.
(Note: For the IP66 enclosure, use the four bolts on the front
cover.)
12-24V AC/DC, connect at positions 0V and +V at connector
block CN1.

For AC: Jumper A is on, D is off. (See Figures)

For DC: Jumper A is off, D is on. (See Figures)
Default factory setting is DC.
Use 2 wires, typically 1 mm
Connect two wires to terminal block CN2 positions 0V and V or I
for voltage or current, respectively:

Connect 4-20mA at CN2 positions 0V and I

Connect voltage output at CN2 positions 0V and V
Not use a common ground for these connections.
P1 sets the trip point for the relay and audible alarm using the 0-
5V scale (measure at test points 0V and alarm test point REF1).
Default factory setting is 50% of the range.
A time delay for the operation of the relay and audible alarm can
be selected using jumpers JP5 and JP6.
Default factory setting is zero.
The audible alarm can be disabled using jumper JP3.
Default factory setting is enabled.
GDS41-GDS66-GDI41-GDI66
DESCRIPTION
2
(minimum).
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