UV-02
UV flame detector
Der Ultraviolett-Flammenmelder UV-02 mit großem Empfindlichkeits-Einstellungsbereich erkennt sowohl Brände mit offener Flamme als auch Lichtbögen.
Er spricht auf die hauptsächlich in den Flammensäumen enthaltene UV-C-Strahlung im Bereich von 185-235 nm an und eignet sich perfekt für offene Flammen ohne Rauchentwicklung in Zwei- und Vierleitersystemen.
The detector does not respond to sunlight, incandescent lamps, fluorescent tubes and flying sparks.
In contrast, false triggering is possible with light sources that emit UV radiation. These include, for example, halogen and mercury vapor lamps, lightning, arcs during welding work and the reflections from these radiation sources.
In addition, smoke, dust and water vapor as well as dirt on the UV pane absorb the ultraviolet radiation and impair the detector’s response.
The device has potential-free changeover switches for fault and alarm and can be set to very short response times.
The detector is equipped with a nano-coated special filter glass that has excellent oleophobic and hydrophobic properties. Dust and dirt also have a very hard time settling on the viewing pane, which means that air purging is not necessary in many applications.
UV-02 – data and facts
| Operating voltage |
18…30VDC=
|
| Betriebsstrom Zweidrahttechnik |
< 400µA
|
| Spectral sensitivity |
185…235 nm
|
| Viewing angle without ventilation |
ca. 110°
|
| Viewing angle with ventilation |
ca.35°
|
| Temperature range |
-20…+60°C
|
| Dimensions (without / with ventilation) | 125x80x57/75mm |
| Weight (without / with ventilation) | 560 g / 610 g |
| Sensitivity (@ 2cm gas flame from 3m pipe, 30% Prop. 70% But.) Line end resistance (activated via external resistor class 1+2, two-wire technology) Please specify when ordering. |
300 cm <10s 4,7 KΩ |
| Alarm pulse (without latching) | ca. 1 s |
| Response delay (adjustable) | 20ms, 200ms, 2s |
Options and special features
|
Wide sensitivity adjustment range and very short response time adjustable
Integrated potential-free changeover switches for “fault” and “alarm”, suitable for two- and four-wire systems
Optionally available with air purge connection UV-02.LU
Equipped with special glass that has excellent oil and dirt-repellent properties, so that air purge is often not necessary |
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