Methane (CH4) detector
BETA752
Geca Srl
The gas detectors methane, GPL and CO BETA 752 inform for means of mark them optical and acoustic of the gas presence in the atmosphere in which they are nstallati.
They are equips you of an escape relé for the commando of a elettrovalvola of interception gas.
In the versions methane and GPL tarati in order to find one equal gas concentration to 10% of the L.I.E. (Inferior Limit of Esplosività). Such threshold can vary based on the environmental conditions them, but in any case it will not exceed 20% of the L.I.E during the first 5 years of exercise.
In the versions CO tarati in order to find the following concentrations: 50 ppm for 70 minuteren/100 ppm for 20 minuteren/300 ppm for a minute. Such thresholds are guaranteed for the maximum period of 5 years.
Upon maturity of the prescribed period it marks them optical informs of the necessity to replace the sensor, eseguibile operation simply rimuovendo one shop and using the supplied sensors of reciprocation in blister.
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