IU-01
Infrarot-Ultraviolett-
IR / UV combination flame detector
The infrared-ultraviolet combination flame detector IU-01 detects fires with open flames involving carbon.
The IR part responds to the flickering of the flame and the spectral line of CO2,
the UV part responds to the ultraviolet components of the flame radiation (UV-C radiation in the range 185-235 nm) that are mainly contained in the edges of the flame. The alarm is only triggered when both the IR and UV parts have detected a fire.
The detector is well suited to open flames without smoke development.
It does not respond to sunlight, incandescent lamps (continuous/modulated), fluorescent tubes, flying sparks, electric arcs, hydrogen flames, calm flames without flickering and metal fires.
Smoke, dust and water vapor as well as dirt on the detector’s panes limit its use because they absorb radiation and impair the detector’s response.
IU-01 – data and facts
| Operating voltage |
10…28 VDC
|
| Operating current at 24V |
< 120 µA
|
| Viewing angle (without / with ventilation) |
ca. 110° / 35°
|
| Protection class of the housing |
IP65
|
| Temperature range |
-20…+60° C
|
| Dimensions (without / with ventilation) | 125 x 80 x 57 / 75 mm |
| Weight (without / with ventilation) | 540 g / 600 g |
| Alarm pulse (without latching) |
ca. 1 s
|
| Sensitivity (set to 2cm gas flame from 3mm pipe, 30%Prop. 70%But.) line end resistance (standard) |
calibrated @
80cm <10s not active |
| Response delay (adjustable)
Spectral sensitivity |
5 s, / 10 s
IR / UV part |
Options and special features
|
Particularly high immunity to false alarms from other radiation sources Optionally available with air purge connection IU-01.LU Optionally with two changeover relays for “fault” and “alarm” IU-01.R |
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The IR/UV combination flame detector detects fires with an open flame involving carbon. This is well suited for open flames without smoke development.
