QRB3火焰探測(cè)器
品牌：SIEMENS（西門子）
產(chǎn)地：德國(guó)
Photoresistive flame detectors for use with Landis & Staefa burner controls, for the supervision of oil flames in the visible light spectrum. The flame detectors are used primarily in connection with burner controls for small burners.
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With this type of flame supervision, the radiation of oil flames in the visible light spectrum is used for generating the flame signal.
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The light-sensitive element is a photoresistor.
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When there is no light, the detector′s resistance is in the MΩrange.
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The resistance drops as the intensity of illumination increases (kΩrange).
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In contrast to the selenium photocell of the RAR... detectors, glowing firebrick in the combustion chamber can be detected.
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主要參數(shù)
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保護(hù)等級(jí)
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IP40
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當(dāng)連接至LOA.../LAL...時(shí)，電纜長(zhǎng)度
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1.5m最大
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連接電纜
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2*0.75mm2,5.1mm直徑
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重量
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20...35g
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環(huán)境條件
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運(yùn)輸環(huán)境
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IEC 60 721-3-2
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內(nèi)部條件
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class 2K2
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溫度范圍
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-20...+60oC
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濕度
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<95%
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運(yùn)行環(huán)境
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IEC 60 721-3-3
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內(nèi)部條件
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class 3K5
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機(jī)械條件
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class 3M2
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溫度范圍
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-20...+60oC
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濕度
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<95%
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不得進(jìn)水
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此型號(hào)主要應(yīng)用于意大利BALTUR百得燃油燃燒器上，大于30萬(wàn)大卡以上使用。
