SIEMENS QRB1 B is a flame detector produced by Siemens, and here is a detailed introduction to this product:
I. Product Overview
Brand and Origin: The product is branded as Siemens and manufactured in Germany.
Application Scenario: The QRB1 B flame detector is typically used in conjunction with combustion controllers to detect fuel flames within the visible spectrum. It is widely applied to various brands of fuel oil burners.
II. Product Features
Photoresistor Technology: The QRB1 B employs photoresistor technology, enabling it to sensitively perceive the presence or absence of a flame, thereby ensuring the safe operation of the burner.
Connection Options: The flame detector can be equipped with either flange or rubber connections, allowing users to choose based on their actual needs.
Sensitivity and Model: The QRB1 series photocells include standard and high-sensitivity types. As a high-sensitivity model, the QRB1 B offers enhanced flame detection sensitivity.
Dimensions and Weight: The QRB1 B photocell sleeve is elongated, measuring 65mm in length (compared to the standard 50mm). Its weight ranges from 20 to 35 grams, with slight variations possible due to individual product differences.
III. Technical Parameters
Protection Level: IP40, providing a certain degree of dust and water resistance.
Cable Length: When connected to the corresponding controller, the cable length is 1.5 meters, ensuring a stable connection between the detector and the controller.
Connection Cable: A 2*0.75mm² cable with a diameter of 5.1mm is used to meet the electrical connection requirements.
Transportation and Operating Environment: The transportation environment complies with IEC 60721-3-2 standards, with internal conditions classified as class 2K2. The operating environment conforms to IEC 60721-3-3 standards, with internal conditions classified as class 3K5 and mechanical conditions as class 3M2. The temperature range is from -20 to +60ºC, and the humidity is less than 95%, ensuring stable operation of the detector in various harsh environments.
IV. Usage Precautions
Before making any wiring changes within the detector's connection area, ensure that the equipment is completely isolated from the main power supply (all two-stage disconnection) to ensure operational safety.
Provide appropriate protection for the connection terminals to prevent electric shock hazards.
Check and confirm that the wiring is correctly connected to avoid faults caused by incorrect connections.
Be cautious of objects that may generate sufficient radiation, such as halogen lamps, welding equipment, special lighting fixtures, or ignition sparks, as they may interfere with the detector.
Avoid dropping or impacting the detector, as this may affect its safety function. Even if the detector appears undamaged, it may not function properly.
In summary, the SIEMENS QRB1 B is a high-performance, widely-used flame detector that can meet the flame detection needs of various fuel oil burners.
