The Relay Module is an economical
solution to adding a fail-safe relay output
to any 4-20 mA device. It can be directly
mounted and wired to any GasGuard
sensor to provide equipment shutdown
such as rooftop AHU’s, solenoid valves,
etc. The relay module can also be used
with a horn strobe to provide audio visual
notification at the sensor location.
The 4-20 mA analog signal feeds through
the relay module to maintain the existing
function of the gas sensor or output
device. The alarm setpoint is adjusted
via rotary switches in 1% increments for
varying alarm setpoints between 1-99%
of full scale. The relay will trip once the
signal reaches the setpoint on the relay
module.
The circuit board of the Relay Module is
potted inside the conduit body to completely
prevent corrosion due to water
or moisture, and is able to withstand
harsh weather and washdown environments.
This allows the relay module to be
used in any environment you place your
GasGuard detector. A 10” 3-wire pigtail is
built in for easy wiring to the gas detector.
Key Features:
- 4-20 mA feed-through design maintains signal output function
- Relay output with Form C dry contacts, 8A, 24VDC, or 120VAC
- 24VDC power requirements with 4-20 mA signal input
- 2-second alarm / 10-second clear, non-latching relay
- Circuit board with terminal block for easy wire landings
- Adjustable alarm setpoints (1-99% of scale), with rotary switches
- Threaded insert allows for 1/2” or 1” conduit and fittings
- LR rigid conduit body allows for outdoor or wash-down installation
- Economical alternative to long control-wiring pulls
- 2 year warranty
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