SIEMENS QRA2 Photocell Sensor For Burner Controller UV Flame Detector 

Description

SIEMENS QRA2 Photocell Sensor For Burner Controller UV Flame Detector 
QRA4.U
QRB1
QRA2M
QR10M.C
QRA50M
SIEMENS Photocell Sensor For Burner Controller UV Flame Detector  BEST PRICE IN BANGLADESH (BD) SUPPLIER IN BANGLADESH (BD) IMPORTER (BD)

The Siemens QRA2 is a photocell sensor used for lighting control in various applications. Here are some key parameters and features you might need to know:

1. Detection Range: The QRA2 typically has a detection range that can be adjusted to meet the specific needs of the installation. This range determines how far the sensor can detect changes in light levels.
2. Light Sensitivity: The sensor’s sensitivity to light can often be adjusted. This allows you to set the threshold at which the sensor will trigger a response based on ambient light levels.
3. Adjustable Time Delay: Some models include a time delay feature that allows the user to set how long the sensor should wait before turning the lighting on or off after detecting a change in light levels.
4. Mounting Options: The QRA2 can usually be mounted in various orientations, such as on walls or ceilings, depending on the application requirements.
5. Output Type: The sensor typically provides an output signal that can be connected to a control system or lighting relay. The type of output (e.g., relay, digital, or analog) can vary.
6. Power Supply: The sensor operates on a specific voltage, which should be checked to ensure compatibility with your existing electrical system.
7. Temperature Range: The operating temperature range indicates the range of environmental conditions in which the sensor can function reliably.
8. Housing and Durability: The sensor’s housing is designed to protect it from environmental factors like moisture and dust, making it suitable for various indoor and outdoor applications.
9. Response Time: This is the time it takes for the sensor to respond to changes in light levels and activate the connected system or device.