Đầu báo khói địa chỉ Siemens OP921

Đầu báo khói Siemens OP921
– The Photoelectric Smoke Detector (Model OP921) uses state-of-the-art microcontroller circuitry and surface-mount technology for maximum reliability. Model OP921 incorporates an optical sensor using a light-scattering detection principle. The device utilizes advanced software algorithms to analyze the signals, and provides highly stable and accurate smoke detection.
– Model OP921 also uses state-of-the-art microprocessor circuitry with error check; detector self-diagnostics, and supervision programs.
Thông số kỹ thuật

Model

OP921

Operating Temperature

+32°- +120°F (0° – +49°C)

Relative Humidity

0 – 95% (non-condensing)

Air Velocity

0 – 4,000 feet-per-minute (fpm)
(0 – 20 meters-per-second)

Input Voltage Range

16VDC – 30VDC

‘Alarm’ Current, Max

410μA

‘Standby’ Current, Max

250μA

Detector Weight

0.317 Lbs. (0.144 kg.)

Mechanical Protection Guard

UL and ULC Listed (with STI Guard Model STI-9604)

Sensitivity Range

1.08 – 2.72% / ft obs.
(Nominal 2.0% / ft. obs.)