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Designed for alarm generation when carbon monoxide and pre-explosive concentration of flammable gases (methane or propane-butane mixture) in air reaches the preset threshold values.
Application: Installation in boiler houses of varying capacity operated on liquefied and natural gases, and also in non-hazardous areas of other industrial, administrative and residential premises.
Type of gas alarm - fixed.
Mode of operation - continuous.
Principle of operation
- carbon monoxide measuring channel - electrochemical;
- flammable gases measuring channel - thermochemical.
Possible content of system
Toxic and flammable gas alarm СТГ-1 (СТГ-1-1 or СТГ-1-2);
Valves КЭГ 9720 ИБЯЛ.685181.001 -01 (DN 20), -02 (DN 25), -21 (DN 32) – 40V;
Valves КЭГ 9720 ИБЯЛ.685181.001 -03 (DN 40), -04 (DN 50), -05 (DN 32), -09 (DN 25), -10 (DN 25) – 220V;
Dispatcher desk ДИСП ИБЯЛ.465213.003.
Basic technical characteristics
Characteristics |
Values |
Remarks |
Quantity of sensors: on flammable gas (remote) on carbon monoxide (СО) (built-in) |
1 / 2 |
СТГ1-1 / СТГ1-2 permanent |
Standard thresholds setting: % LEL (on methane) on carbon monoxide (СО), mg/m3: |
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Generation of dry relay contacts |
|
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Ambient temperature, °С |
-10 ÷ +50 |
|
Protection degree |
IP30 |
|
Length of communication cable between gas alarm and flammable gas sensor, m |
up to 200 |
core section 0,75 mm |
Overall dimensions, mm, not more |
|
weight, kg, not more |
Distinctive features
- Quantity of device versions is reduced with retention of functional capabilities, two versions of СТГ-1-1 (one flammable gas sensor), СТГ-1-2 (two flammable gas sensors) are manufactured;
- Availability of external input “EMERGENCY” that allows to connect devices in loop or to connect them to fire or burglar alarm;
- Possibility of independent setting of operation modes after device switching on – automatic passing into operating mode with opening of network valve - "О" or switching of emergency alarm with opening of network valve after pressing of the button "reset" - "В";
- Availability of “TEST” button that allows to check functionality of device and shutoff valves without the use of gas mixtures;
- Connection by means of terminal connections;
- Zero autocalibration when power on or once in 14 days.