 Operation Theory |
| |
The UV tube detects the ultraviolet radiation emitted from weak flame. UV rays pass through the UV glass and strike the cathode, then photoelectrons are emitted due to emission effect. Thus the air inside UV tube will begin to change and voltage will drop greatly to produce alarm signal.
|
| Description |
| |
The detector has wide angular sensitivity that can reliably and quickly detect weak UV radiations emitted from flame. It will not cause any reaction in room illuminations, infra-red or any other light sources irrelevant to real fire. |
| Applictions |
| |
- Premises with higher ceilling height e.g. theater, gym, storage, gallery of warehouse, etc. |
| |
- Places where fire happens easily e.g. places stored with combustible goods, gas station, working place of factory machine room etc. |
| |
- Ventilation place : open market, station platform, hotel lobby, departmental stores, etc. ( Places where smoke and heat do not gather during early period of fire) |
| |
- Others : tunnel, computer rooms, etc. |
| Cautions of installation |
| |
- Detection speed within twenty seconds ( do not use accumulation type panel ) |
| |
- Installed at obstruction free place |
| |
- Avoid to install near mercury lamp, halogen lamps and sterilizations lamps. |
| |
-Avoid welding sparks and radiations present within sensitive range. |
| |
|
Products
