低价西门子QRA50M光电管QRA50M燃烧器火焰探测器SIEMENS原装
SIEMENS火焰检测器QRA50M图片技术参数说明
LAE10 LFE10 LFE50
QRB1 QRB3
QRA2 QRA2M
QRA4.U QRI2B2.B180B1
QRA10.C QRA10M.C
RAR7 RAR8 RAR9
QRA50M QRA51M
QRI2A2.B180B QRI2B2.B180B
LAE10-110V LFE10-110V
QRI2A2.B180B 红外火焰探测器，连续运行，前向视窗
QRI2B2.B180B 红外火焰探测器，连续运行，侧向视窗
QRI2B2.B180B1 红外火焰探测器，连续运行，侧向视窗，配安装法兰及夹具
QRA50M系列火焰探测器-电眼
品牌：SIEMENS（西门子）
产地：德国
描述：
QRA5…含自检功能的火焰探测器，用于连续运行的燃油或燃气燃烧器的火焰安全监测
通常与LFE50火焰放大器共同使用。
可根据各种工况选装隔热玻璃、放大信号、通冷风等
UV灯管可更换
用于QRA50M AGR450242680
用于QRA51M AGR450240650
The flame detectors are used for the supervision of gas flames, yellow- or blue-burning oil flames and for ignition spark proving. High sensitivity.
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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 die-cast alloy flame detector head is sealed with a quartz-glass lens. In addition to the plug-in UV cell, the head contains a rotating shutter which – for the purpose of continuous testing of the UV cell’s striking and extinction voltage performance – interrupts the UV radiation at the rate of 3 times per second. The shutter is driven by a synchronous motor which is suited for continuous operation.
The flame detector is attached to the viewing tube by means of a flanged mounting coupling which has a 1 in. internal thread. A 3/8 in. tapping on the side of the coupling enables a cooling air conduit to be connected, provided that dry, dust- and oil-free compressed air is available.
| 要参数UV单元平均寿命10000小时（在50oC）炉膛背压500mbar保护等级IP54重量750g |
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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-55 +50oC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 +50oc湿度<95%不得进水
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德国SIEMENS西门子火焰探测器（电眼）RAR8，
德国SIEMENS西门子火焰探测器（电眼）RAR9，
德国SIEMENS西门子火焰探测器（电眼）QRA10.C、
德国SIEMENS西门子火焰探测器（电眼）QRA10M.C、
德国SIEMENS西门子火焰探测器（电眼）QRA53.C27、
德国SIEMENS西门子火焰探测器（电眼）QRA53.D27、
