RAR Series electrical thimble eye - electric eye

Specifications

  
 Products
The flame detectors are used for the supervision of gas flames, yellow-or blue-burning oil flames and for ignition spark proving. Continuous

With this type of flame supervision, the UV radiation emitted by gas or oil flames is used to generate the flame signal.

The radiation detector consists of a UV-sensitive cell with 2 electrodes, which ignite when illuminated with radiation in the 190 ... 270 nm range of the spectrum, thereby triggering a current in the flame detector circuit.

The UV cell does not respond to glowing firebrick in the combustion chamber, daylight or light from the boiler room illumination.

The detector's UV cell is located behind a swivelling shutter at the front end of the detector tube which is flanged to the housing. A quartz glass window protects the tube and the shutter against dirt. The detector's housing accommodates a stepper motor to drive the shutter and the electronics to control the shutter.

Using the adapter AGG16.C, this flame detector can be mounted either directly on the burner, on a viewing tube or on a combustion chamber viewing hole.

operating mode.

electrical thimble eye
 
 Model Table
Model sensitivity detection tube length of the main voltage separation UV tube Model
QRA55.C27 ordinary 77mm AC220 ... 240V 450240657
QRA55.C17 ordinary 77mm AC100 ... 110V 450240657
QRA55.D27 high sensitivity 77mm AC220 ... 240V 450240657
QRA55.D17 high sensitivity 77mm AC100 ... 110V 450240657
 
 Technical parameters
Main parameters UV unit average life of 10,000 hours (at 50 º C)
Degree of protection IP54
Weight
- AGG16.C 650g
- QRA53 900g
 
 
Environmental conditions of transport environment IEC 60 721-3-2
Internal conditions class 2K2
Mechanical conditions class 2M2
Temperature range -20 ... +60 º C
Humidity <95%
Operating environment IEC 60 721-3-3
Internal conditions class 3K5
Mechanical conditions class 3M2
Temperature range -20 ... +60 º C
Humidity <95%
Shall not be water