D263 Two‑Wire Smoke Detector Two‑wire photoelectric smoke detector
These detector models use an infrared (IR) LED light source and a silicon photodiode to measure light in a chamber. A fine screen covers the chamber to deter insects and to reduce dust accumulation and nuisance alarms.
D263 During a fire, smoke particles reflect light onto the photodiode. When the photodiode measurements exceed the alarm threshold, the detector signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector. Use a D132B Reversing Relay Module to activate the sounder (85 dB at 10 ft [3 m]). When using a D132B, the LED does not latch on alarm.
D263 Chamber Calibration Tests
Check the sensitivity and calibration of any of these detectors using a visual check, a magnet test, or a voltage measurement test.
Visual check: When the detector’s calibration is within the factory listed range, the red alarm LED flashes once every 3.5 sec. If the detector’s calibration is out of range for more than 24 h, the red alarm LED flashes once a second.
Magnet test:
Wiring
The terminal block accepts up to 12 AWG (ISO 4 mm2 ) wire. You can remove the terminal block from the detector for easier wiring. The terminal block snaps in and out of the detector.
A CMC é a solução inovadora que criamos para descomplicar a importação de produtos de automação industrial no mercado internacional. Com a CMC é fácil comprar online de maneira rápida, prática e segura!