-operation threshold for methane (СН4) - 0,5% (5000ppm, 10% LEL (lower explosive limit) concentration);
-threshold for temperature exceeding + 55 C°;
-alarm sound level at a distance of 1 m - no less than 85 dB;
-warm-up period - no more than 30 min;
-operating time for methane during warm-up period - no more than 300 sec;
-operating time of alarm for methane - no more than 30 sec.
External devices control output:
-pulsed output for controlling normally opened impulse shut-off electromagnetic valve at 220V, 24V or 12V (electrically isolated from the line supply network 220 V);
-output for controlling a normally closed electromagnetic valve ~220 V;
-output for controlling light and sound device and/or air exhaust device - voltage ~220 V .
Line supply by alternating current 110 V - 220 V ± 10%, 50 Hz
Line supply by external constant-current source - 12 V .. 24 V ± 10%;
Operating time from standby backup battery - no more than 30 min .
Switching power supply automatically.
Power consumption in the absence of alarm - no more than 2,2 W.
Protection class against ingress into the casing of solids and liquids matter - IP22D.
Protection class for Electrical degree – II.
Dimensions – 120x85x55 mm, no more.
Weight - 250 g, no more.
Calibration interval 1 year.
Mean lifetime no less than 10 years.
Operating Temperature Range -10 to + 40 C°.
Control of the temperature rises to + 60 C°.
Relative air humidity to 90%.
Atmosphere pressure from 84.0 to 107.0 kPa.