QRI2B2.B180B Siemens Flame Detector

Overview

The Siemens QRI2B2.B180B is a high-performance infrared (IR) flame detector designed for the supervision of gas, oil, or coal flames. Part of the Siemens QRI series, this self-checking sensor is engineered for continuous or intermittent operation. It is specifically designed for lateral (90 degree) light entry, making it an ideal choice for specific burner mounting configurations where side-viewing is required.

Features

• Infrared-sensitive photoresistor element detects radiation in the range of 1 to 3 µm
• Integrated flame signal amplifier ensures reliable signal transmission
• Electronic self-supervision allows for use in continuous operation systems
• Impact-proof black plastic housing with a dust-tight lens for durability in industrial environments
• High signal sensitivity allows for detection behind a burner’s baffle plate
• Secured via a flange and clamp for easy adjustment and mounting

Specifications

• Model: QRI2B2.B180B
• Viewing Orientation: Lateral (Side Viewing)
• Spectral Sensitivity: Maximum approximately 2 µm
• Operating Voltage: DC 14 V ±5%
• Signal Voltage: DC 0 to 5 V
• Power Consumption: Less than 0.5 W
• Cable Length: 180 cm (approx. 6 feet)
• Cable End: Stripped with ferrules
• Protection Rating: IP54
• Operating Temperature: -20 C to +60 C
• Weight: Approximately 0.175 kg

Applications

• Industrial gas, oil, and coal burners of any capacity
• Supervision of flames that emit infrared radiation
• Use in conjunction with Siemens burner controls, such as the LMV5 series
• Suitable for systems requiring continuous or high-demand burner cycles
• Applications where the detector must be mounted behind the burner baffle plate