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A 12VDC 1.2Ah battery can be connected to the GS920 gas detector.
The detector itself provide the needed charge for the battery.
The battery must be connected between the pin 3 and 4 (pin 3 is the positive, 4 is negative)
The battery option is useful for:
a) back-up of the gas detector with a duration of about 1 hour
b) supply a 12VDC electrovalve with a continuous absorption of less than 600mA
The Relay is free of voltage.
Range of relay contact 10A resistive
The drawn electrovalve is a Normally Open type with manual reset and with a power supply
of 12V 600mA MAX. The activation is impulsive.
Power Supply
230 V
AC
Normally open electrovalve 230V AC with intrinsic safety
+
+
Ph
N
1 2 3 4 5 6 7 8
The Relay is free of voltage.
Range of relay contact 10A resistive
The drawn electrovalve is a N.C. type with manual or automatic reset. The power supply is
12VDC 1A MAX with the help of a battery.
Normally close electrovalve 230VAC without intrinsic safety
Power Supply
230 V
AC
Ph
N
+
+
12 V
1 2 3 4 5 6 7 8
Electrical connections
