Made in Italy
F i r m w a r e .
Ver sione 3 .1
Firmware
Version 1.0
CONFORMITY
Important Note
Before connecting the unit careful reading of instruction booklet is recommended, and it is kept
in a safe place for future reference.
Furthermore, the correct electrical connections according to the enclosed drawings, complying
with instructions and Regulations in force, is recommended.
EN 50194
CEI 216-3
EN 50270
Belonging to
GS920
Gas Detector with Earthquake-proof Device
The GS920, thanks to its innovative “
Seismic Detection
” feature and the possibility
of selecting the “Intrinsic Safety Control”, is a leading-edge technological device.
A microprocessor was used to create a complete surveillance and control system
with maximum flexibility.
Together with its catalytic sensor technology, it detects the presence of explosive
gas, such as: Methane and LPG, with trip threshold calibrated at 10% of Lower
Explosion Limit.
Using the built-in relay it can activate: solenoid valves, sirens, and any other alarm
signal device. The micro switch makes it possible to select the relay impulse
functioning, to connect manual reset solenoid valves, or the continuous functioning,
and to activate N.C. class “A” solenoid valves and sirens.
Another micro switch allows turning on/off the “
Intrinsic Safety
”.
The power supply unit allows driving of a manual reset solenoid valve with a 12Vdc
coil, without any buffer battery. If the voltage absorption is too high, you can later
integrate a suitable backup battery. The battery is recharged automatically.
The “
Seismic Control
” allows closure of the solenoid valve, stopping the gas
original source! This control is vital in seismic regions! The relay, free of voltage,
allows installation of multiple detectors on a single solenoid valve, providing control
of multiple dangerous environments.
The technical scheme is completed by a circuit that controls the catalytic sensor
“efficiency level”, and signals any possible fault.
These technical features make the detector ideal for civil environment safety
according to EUROPEAN REGULATIONS.
Installation and user guide
