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DUAL SENSOR TECHNOLOGY
The SAFE-T-ALERT 70 series combination CO/Propane Gas Alarm
is an alarm that combines into a single, compact system a powerful
alarm that detects both Carbon Monoxide (CO) and explosive gases
propane (LPG) and Methane (Natural Gas).
The 70 series uses the latest microprocessor technology combined
with two electronic self-cleaning sensors that operate independently
of each other. The combined unit can detect CO and explosive
gases simultaneously.
OPERATION
When the unit is first powered up, the CO sensor requires a ten (10)
minute initial warm-up period to clean the sensor element and
achieve stabilization. The GREEN LED indicator will flash on and off
during the 10 minute warm-up period. The unit cannot go into a CO
alarm during the warm-up period. To test your unit during the warm-
up period, press the test button. See Test Procedure in this manual.
After the warm-up period, the GREEN power ON indicator should
glow continuously. If the ON indicator light does not light, see the
section, Trouble-Shooting Guide, in the user’s manual for further
information. Do not attempt to fix it yourself.
Gas Alarm: When you power the alarm, it has a warm-up period of
approximately 1 minute. This unit cannot go into a gas alarm during
the warm-up period. After 1 minute the alarm can detect explosive
gas and will energize the relay on models 70-742-R and 70-742-R-
MS.
Simultaneous CO and Gas Alarms– Because the risk of a propane
gas explosion is generally a more serious danger, your alarm unit
LIMITATIONS OF CO AND GAS ALARMS
THIS ALARM WILL NOT WORK WITHOUT POWER
Some reasons for no alarm power are; a blown or missing fuse; broken
wire; a faulty wire connection or circuit breaker; a discharged battery; cut
lead wires, or improper supply (+) or ground (-) connections.
WARNING!
!
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