QRA53系列火焰探测器-电眼
品牌:SIEMENS(西门子)
产地:德国 |
产品介绍 |
The flame detectors are used for the supervision of gas flames, yellow- or blue-burning oil flames and for ignition spark proving. Continuous operating mode.
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With this type of flame supervision, the UV radiation emitted by gas or oil flames is used to generate the flame signal.
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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.
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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. | |
型号表 |
型号 |
灵敏度 |
探测管长度 |
主电压 |
分离UV管型号 |
QRA53.C27 |
普通 |
125mm |
AC220...240V |
450240657 |
QRA53.C17 |
普通 |
125mm |
AC100...110V |
450240657 |
QRA53.D27 |
高敏 |
125mm |
AC220...240V |
450240657 |
QRA53.D17 |
高敏 |
125mm |
AC100...110V |
450240657 | |
技术参数 |
主要参数 |
UV单元平均寿命 |
10000小时(在50ºC) |
保护等级 |
IP54 |
重量 |
- AGG16.C |
650g |
- QRA53 |
900g | | |
环境条件 |
运输环境 |
IEC 60 721-3-2 |
内部条件 |
class 2K2 |
机械条件 |
class 2M2 |
温度范围 |
-20...+60ºC |
湿度 |
<95% |
运行环境 |
IEC 60 721-3-3 |
内部条件 |
class 3K5 |
机械条件 |
class 3M2 |
温度范围 |
-20...+60ºC |
湿度 |
<95% |
不得进水 | | |