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The Landis & Staefa Siemens photocell model QRB3 is an infrared optical sensor used for flame detection in gas or oil burners. It operates reliably with a 220V AC power supply and within an ambient temperature range of -20 to +60 degrees Celsius. The QRB3 model comes with a standard 1.8-meter cable and works with an infrared light detection filter in the 1000 to 1100 nanometer wavelength range. The insulation resistance of the device exceeds 100 megaohms at a test voltage of 500V DC. The sensor can be mounted using either threaded or suitable holder installations.
The QRB3 sensor features an open collector output and is compatible with Siemens flame control units. Its response time is less than 1 millisecond, and it offers a service life of over 100,000 hours of continuous operation. The QRB3 is mechanically resistant to vibration and dust ingress. Its housing is made from materials resistant to heat and UV radiation. This model is designed and manufactured in compliance with EN298 and CE standards.
WEBSITE: Landis Siemens photocell model QRB3 Iran
The Landis Siemens QRB3 photocell is an infrared sensor with an operating wavelength range between 1000 and 1100 nanometers, designed for flame detection in industrial burners. This model operates with a 220V AC power supply and features very low current consumption for energy-efficient performance. The photocell housing is made of materials resistant to heat and ultraviolet radiation, withstanding ambient temperatures from -20 to +60 degrees Celsius. A 1.8-meter factory-installed connection cable is included, and compatibility with Siemens LFL and LAL controller series is ensured. The sensor output is of open collector type and provides a response time of less than 1 millisecond. The QRB3 is designed in accordance with EN298 standards and guarantees insulation resistance exceeding 100 megaohms at a test voltage of 500V DC.
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