| QRB1系列火焰探測器-電眼 品牌：SIEMENS（西門子）
產地：德國
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| 產品介紹 |
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.
With this type of flame supervision, the radiation of oil flames in the visible light spectrum is used for generating the flame signal.
The light-sensitive element is a photoresistor.
When there is no light, the detector′s resistance is in the MΩrange.
The resistance drops as the intensity of illumination increases (kΩrange).
In contrast to the selenium photocell of the RAR... detectors, glowing firebrick in the combustion chamber can be detected.
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| 技術參數 |
| 主要參數 |
| 保護等級 |
IP40 |
| 當連接至LOA.../LAL...時，電纜長度 |
1.5m最大 |
| 連接電纜 |
2*0.75mm2,5.1mm直徑 |
| 重量 |
20...35g |
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| 環境條件 |
| 運輸環境 |
IEC 60 721-3-2 |
| 內部條件 |
class 2K2 |
| 溫度范圍 |
-20...+60ºC |
| 濕度 |
<95% |
| 運行環境 |
IEC 60 721-3-3 |
| 內部條件 |
class 3K5 |
| 機械條件 |
class 3M2 |
| 溫度范圍 |
-20...+60ºC |
| 濕度 |
<95% |
| 不得進水 |
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