Weishaupt QRA2 flame sensor, 21710612012

More about the QRA2 model, article number 21710612012:

It is equipped with a metallized plastic case that prevents the formation of static electricity created by the airflow when the fan is operating.

The flame sensor includes a photosensitive element sensitive to UV radiation of yellow and blue flames. The device does not detect the light spectrum from red-hot refractory brick, solar radiation, lighting lamps in the boiler room, therefore it does not require the implementation of additional safety measures.

Characteristics and features:

• Direct and side flame visibility;

• For gas, liquid fuel equipment with an intermittent operating cycle;

• Declared resource: 10,000 hours at an ambient temperature of up to +50 °C.