User Manual

ManualsBrandsSiemens ManualsBurner EquipmentYellow flame detector QRB4

CC1N7720en

21.11.2019

Smart Infrastructure

720

QRB4 QRB4x-xxxxA with AGK42 flange and

AGK43 clamp

QRB4x-xxxxB with plug

ellow flame detector

QRB4...

Yellow flame detector for use with Siemens burner controls, for the supervision

of oil flames in the visible light spectrum.

The QRB4 is used in connection with oil burner controls in intermittent operation.

QRB4 and this Data Sheet are intended for OEMs using the QRB4 in or on their

products.

Use

The QRB4 flame detectors are designed for the supervision of yellow-burning oil flames

in connection with burner controls type LME7 (on request), LME8 (on request), LMO,

LMV2 and LMV3.

It is designed for frontal and lateral (90°) illumination.

The maximum spectral sensitivity of the QRB4 is about 540 nm, thus giving full

consideration to the maximum level of visible light radiation of yellow-burning oil flames.

Since the QRB4 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.

Summary of content (11 pages)

PAGE 1
7 QRB4 QRB4x-xxxxA with AGK42 flange and AGK43 clamp Yellow flame detector 720 QRB4x-xxxxB with plug QRB4... Yellow flame detector for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. The QRB4 is used in connection with oil burner controls in intermittent operation. QRB4 and this Data Sheet are intended for OEMs using the QRB4 in or on their products.
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Supplementary documentation Type of documentation Documentation number Data sheet N7105 Basic documentation P7105 LME8 Basic documentation P7109 LMO Data sheet N7130 LMV27.100 Data sheet N7541 LMV26.300A2 Data sheet N7547 LMV37.4 Data sheet N7546 LMV36.300A2 Data sheet N7547 LMV36.520A1 Data sheet N7544 Product type LME7 Warning notes To avoid personal injury or damage to property or the environment, the following warning notes must be observed.
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Commissioning notes  The intensity of the radiation of light on site is checked by measuring the detector current For information about the measuring circuit and the minimum detector current values required, refer to the Data Sheet of the relevant type of burner control Measuring circuit for detector current measurement 12 LMO X10-05 4 3 LME7 / LME8 X10-05 4 3 LMV2 / LMV3 11 - Blue QRB4 Black + 7720v01en/0918  µA DC  Caution! It is essential to observe the correct polarity.
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Design General Compact QRB4 with infused 2-wire thermoplastic cable. The detector is available with normal or high sensitivity and with or without flange / clamp or soft plastic plug (refer to Type summary). QRB4x-xxxx Yellow flame detector without accessories. QRB4x-xxxxA     QRB4x-xxxxB    With soft plastic plug For mounting on the burner.
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Type summary QRB4 High / red Casing length (G) (mm) Visible cable length (L) (cm) Stripped length (M) (mm) Ferrule Stripped Sensitivity / --- 68 36 25 --- --- --- --- --- 68 36 40 --- 68 36 40 --- ● --- 68 50 70 --- --- --- 68 50 70 ● --- --- 68 50 70 --- ● --- 68 70 70 --- --- --- 68 70 70 ● --- --- 68 70 70 --- ● --- 68 110 70 --- --- --- 68 150 70 --- --- --- 68 150 70 ● --- --- 68 150 70 --- ● ● ● ● ● ● ● ● ● ● ● ● ● 6
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Type summary (continued) Accessories QRB4 (version without plug) Item Article no.
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Technical data General unit data Rated voltage Safety class Degree of protection Mounting position Detector cable Weight (depending on type and accessories) Permissible cable lengths Environmental conditions Storage Climatic conditions Mechanical conditions Temperature range Humidity Transport Climatic conditions Mechanical conditions Temperature range Humidity Operation Climatic conditions Mechanical conditions Temperature range Humidity Installation altitude Max.
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Incidence of illumination 7720d01cs/1118 The QRB4 is designed for frontal and lateral (90°) illumination. 120 Relative sensitivity (%) 100 80 60 40 20 0 0 10 20 30 40 50 Angle 60 70 80 90 8/11 Smart Infrastructure CC1N7720en 21.11.
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Dimensions Dimensions in mm QRB4x-B QRB4x-Bxxx without plug QRB4x-BxxxB with plug QRB4x-C QRB4x-Cxxx without plug and with extension (40 mm) QRB4x-CxxxB with plug and with extension (40 mm) 9/11 Smart Infrastructure CC1N7720en 21.11.
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Dimensions Dimensions in mm QRB4x-D QRB4x-Dxxx without plug and with extension (72 mm) QRB4x-DxxxB with plug and with extension (72 mm) Key G Housing length, see Type summary L Visible cable length, see Type summary M Stripped length, see Type summary 7720m06/1117 Fixing hole on the burner chassis 10/11 Smart Infrastructure CC1N7720en 21.11.
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Dimensions Dimensions in mm Flange AGK42 Clamp AGK43 Flange AGK44 4,6 7720m07en/0319 2 32 45 7720m02/1117 22,5 16 45 36 7720m03/1117 4.6 2 8 26 9,2 18.5 7.1  2019 Siemens AG Smart Infrastructure, Berliner Ring 23, D-76437 Rastatt Subject to change! 11/11 Smart Infrastructure CC1N7720en 21.11.