Siemens QRB1 Series

CC1N7714en
17.07.2006
Building Technologies
HVAC Products
7
714
QRB1...A with large flange QRB1...A with small flange QRB1...B QRB3... with
and clamp and clamp with plug flange and clamp
Photoresistive
Flame Detectors
QRB1...
QRB3...
Photoresistive detectors for use with Siemens burner controls, for the supervi-
sion of oil flames in the visible light spectrum.
The QRB… are used primarily in connection with oil burner controls in intermit-
tent operation.
The QRB... and this Data Sheet are intended for use by OEMs which integrate the
flame detectors in their products.
Use
The QRB... flame detectors are designed for the supervision of yellow-burning oil
flames in connection with burner controls type LAL..., LOA..., LMO... and LMV…
They are suited for frontal or lateral (90°) illumination.
The maximum spectral sensitivity of the QRB… is about 600 nm, thus giving full con-
sideration to the maximum level of visible light radiation of yellow-burning oil flames.
Since the QRB… also acquires certain parts of the radiation spectrum of other light
sources (boiler room lighting, solar radiation, etc.), the standard regulations regarding
safety in connection with extraneous light still apply.

Siemens QRB1 Series Specifications

General

Brand	Siemens
Model	QRB1 Series
Category	Gas Detectors
Language	English

Summary

Photoresistive Flame Detectors

Product Use and Application

Designed for supervision of yellow-burning oil flames with Siemens burner controls.

Safety and Operational Notes

General Safety Precautions

Instructions to avoid injury, property damage, and environmental harm. Handle with care.

Mounting and Installation Guidelines

Ensuring compliance with safety regulations and proper cable routing for signal integrity.

Commissioning and Service Procedures

Checking detector current, safety checks, and cleaning procedures for optimal performance.

Standards and Certificates

Mechanical Design

General Detector Description

Compact photoresistive flame detector with infused 2-wire thermoplastic cable.

QRB1...A Model Details

Flame detector without soft plastic plug, fitted with a flange for vibration-free mounting.

QRB1...B Model Details

Flame detector with soft plastic plug for mounting in a hole with a lateral groove.

QRB3... Model Details

Detector supplied with a metal protective tube, secured with flange and clamp.

Accessories for QRB1...

Available accessories for QRB1... include small/large flanges and clamps.

Accessories for QRB3...

Accessories for QRB3... include metal flange and clamp.

Type Summary

Ordering and Technical Data

General Detector Specifications

Details on degree of protection, mounting position, cable specifications, and weight.

Environmental Conditions

Specifies storage, transport, and operation conditions including climatic and mechanical requirements.

Detector Function

Dimensions