- Type: Rate of Rise Line Type
- Model: DHA-1L, 2L
- Detector Operation: Pneumatic Tub Type, Pneumatic Expansion Type
- Alarm Current: 100mA @24Vdc
- Operating Voltage: 8.5Vdc – 30Vdc
- Operating Temp. Range: -10°C – 50°C
- Pneumatic Tube length: 20m – 100m, The Outside Diameter: 2mm, The Inside Diameter 1.4mm
- Material Body .Cover: Modified Polycarbonate
- Color: White Ivory
- Weight: Approx. 400g
- Country of Origin: Japan
- Approval: JFEII
- Accessory: AK-M Pneumatic Tube (With Messenger Wire)
Đầu báo nhiệt gia tăng dạng ống dẫn Hochiki DHA-1L
- The DHA-1L, 2L line type heat detectors is pneumatic detectors when the ambient temperature increases in the event of fire, the volume of heated air also expands.
- Air-filled sensing tubes transmit this pressure increase to a sensor in the tube terminal processor.
- The system triggers an alarm as soon as a defined limit is exceeded.
- DHA-1L type is highest sensitivity.