GasSens
Gas Detection System
Section 1 - Overview
O & M Manual
A14-RK, 8/06
1 - 5
Audible Horn
A 12 VDC piezoelectric alarm horn is available for mounting into any of the NEMA 4X
enclosures. The horn is wired to the receiver module and will sound intermittently when the
warning setpoint is reached, and continuously when the alarm setpoint is reached. The horn can
be silenced by pushing the A/R switch on the receiver front panel. A single horn can be wired
through multiple receivers and will sound if any receiver goes into alarm.
Strobe Lamp
Provides a bright visual indication of an alarm condition. The strobe uses a xenon flash
lamp to give a high intensity flash approximately 70 times a minute. The strobe is wired to one of
the alarm relays, with power for the strobe supplied from the power supply module. Mounting is
by 1/2" MNPT nipple, making it convenient to mount directly to a NEMA enclosure.
A19 Battery Back-up
Provides a 12 VDC, 4 AH battery and charging control circuitry in a separate NEMA 4X
enclosure. The battery backup connects directly to the A17 power supply module to provide
standby power to the detection system. If AC power is lost, the battery insures that detection
continues uninterrupted.
GasSens
components allow simple assembly of either single or multipoint detection
systems. Each point of detection requires one sensor/transmitter and one receiver. The
sensor/transmitter is mounted in the hazard area, and the receiver is located anywhere within
1000 feet. If the user has a regulated 12 VDC power supply and an enclosure to house the
receiver, nothing else is required. If not, one power supply for every two receivers is needed for
power, and an enclosure of a size to contain the modules is needed for environmental protection.
An optional horn and strobe may be added if desired.
