IR-12.1
Dual-Band-
Infrared-Flame Detector
The IR-12.1 dual-band infrared flame detector detects flickering fires with open flame with the involvement of carbon based on the flickering and the spectral line of CO2. The device is very suitable for open flames with smoke development. It does not respond to sunlight, light bulbs (continuous/modulated), fluorescent lights, flying sparks, arcs, hydrogen flames, small flames without flickering or metal fires.
The ambient radiation is compensated for with the aid of dual-band sensors, through which the sensor has very high insensitivity compared to other IR sources. IR-12.1 has relay outputs for malfunction and alarm, internal monitoring of the operating voltage and integrated test equipment.
IR-12.1 – Data and Fakts
| Operating voltage |
18…30VDC=
|
| Operating current at 24V |
< 250µA
|
| Viewing angle |
ca. 50°
|
| Temperature range |
-20…+70°C
|
| Dimensions | |
| without ventilation |
98 x 64 x 36 mm
|
| Sensitivity | |
| (set to 2 cm gas flame from 3 mm tube, 30%prop.70%but.) |
80cm <1s
|
Options and special features
| – Very high insensitivity to IR sources without spectral CO2 peakk – Relay outputs (normally open contact) for faults and alarm – Internal monitoring of operating voltage, fault with Vb < 16.5VDC – Integrated test equipment |
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