Hochiki HF-24, Руководство пользователя

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10 Hochiki HF-24 UV Flame Detector – Installation Manual
Ultraviolet lamps or similar means are used for making performance tests at
a location where fire is strictly prohibited (this detector cannot be mounted at
a location calling for any explosion proof means). If an ultraviolet lamp is
used for testing purposes, then the lamp should have a maximum ultraviolet
output @ 200nm.
Maintenance & Inspection
Cleaning
Any built up dust or oil film on the surface of the UV tube will significantly reduce its’
sensitivity. The exposure of the UV tube should be cleaned at its’ surface at regular
intervals (half-yearly under normal environments). (In cleaning, take care that no
undue force is applied to the UV tube.)
Performance Check
In addition to the soils above, there may be something, like larvae and webs, which
hinders proper detection. In such cases, the sensor performance should be
checked, as appropriate, using a lighter or the like.
©
1995 Hochiki Europe (UK) Ltd DS0204/ISS1/DEC95