Precautions for gas alarm installation
(1) The alarm probe is mainly a detection element that contacts the combustion gas sensor. It consists of a platinum wire coil coated with alumina and an adhesive. Therefore, care must be taken during installation to avoid damaging the probe.
(2) The installation height of the alarm should generally be 160-170cm, so that maintenance personnel can perform routine maintenance.
(3) The alarm is a safety instrument with sound and light display functions. It should be installed in a place where workers can easily see and hear, in order to eliminate hidden dangers in time. (4) There must be no strong electromagnetic fields (such as high-power motors and transformers) around the alarm that affect the operation of the instrument.
(5) The installation position of the indoor probe should be different depending on the density of the measured gas. When the density of the measured gas is less than the density of the air, the probe should be installed at a distance of 30cm from the roof and facing downward; otherwise, the probe should be installed at a distance of 30cm from the ground and facing upward. The controller uses a three-core shielded wire to connect to the detector (Note: the single-core wire diameter is not less than 0.75mm national standard wire, depending on the actual distance), the shield layer is connected to the controller chassis and reliably grounded. When using an RVV cable, wear a metal pipe and ground the metal pipe reliably.