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Use, features
CC1N7719en
02.06.2008
Infrared Flame Detectors
Infrared flame detectors for use with Siemens burner controls, for the supervi-
sion of gas, oil and other flames that emit infrared light.
The QRI... are suited for burners of any capacity, either in continuous or intermit-
tent operation.
The QRI... and this Data Sheet are intended for use by OEMs which integrate the
flame detectors in their products.
Key features of the QRI... flame detectors:
Detector with infrared-sensitive flame detecting element
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Integrated flame signal amplifier
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Designed for frontal and lateral (90°) illumination
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Suited for use with burner controls type LMV5...
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Secured to the burner with flange and clamp
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The spectral sensitivity of the QRI... is a maximum of about 2 µm covering infrared
radiation emitted by gas, oil, and coal flames as well as other sources of infrared light.
Owing to electronic self-supervision of the flame signal, the QRI... can be used in con-
nection with suitable burner controls designed for burners in continuous or intermittent
operation.
The sensitivity of the QRI... is such that it must be fitted behind the burner's baffle plate.
7
QRI...
Building Technologies
HVAC Products
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Summary of Contents for Siemens QRI Series
- Page 1 QRI... Infrared Flame Detectors Infrared flame detectors for use with Siemens burner controls, for the supervi- sion of gas, oil and other flames that emit infrared light. The QRI... are suited for burners of any capacity, either in continuous or intermit- tent operation.
- Page 2 Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes must be observed! Do not open, interfere with or modify the flame detector! • All activities (mounting, installation and service work etc.) must be performed by qualified staff •...
- Page 3 Installation notes • Locate the detector such that, if possible, only the flickering peripheral range of the flame will be detected. The view at hot boiler walls or other hot boiler or burner components must be restricted as much as possible. This can be attained by clearly confined viewing conditions behind narrow baffle plates.
- Page 4 Standards and certificates Only in connection with Conformity to EEC directives the burner control - Electromagnetic compatibility EMC (immunity) 2004/108EC - Directive for gas appliances 90/396EEC - Low-voltage directive 2006/95EC ISO 9001: 2000 ISO 14001: 2004 Cert. 00739 Cert. 38233 For use in the U.S.
- Page 5 Accessories Flange, with radius 4 241 8855 0 Flange, straight 4 241 8898 0 Clamp 4 199 8806 0 Mounting kit AGG2.110 For frontal illumination, including heat insulator with ¾“ 14-NPSM thread Adapter, protective sleeve Pg9 / ½“ 14-NPSM thread AGG2.120 Technical data Operating voltage...
- Page 6 If the connecting cable length of 180 cm is not sufficient, the burner manufacturer can detector cable extend it up to a maximum of 100 m (also refer to «Installation notes»). length SIEMENS Landis & Staefa Made in Germany 7719m04/1199 max.
- Page 7 Spectral curves Relative intensity of radiation Flames Wave length (µm) Spectral emission of radiation of luminous and nonluminous flames at 1,500 K (extract from VDI Report no. 423, 1981). Black body radiation Legend Pulverized coal flame Oil flame Gas flame Sensitivity of flame detector 100 %...
- Page 8 Measuring circuit and connection examples Refer to «Signal voltage» in «Technical data». Measurement of the LMV... detector current X10-02 / 6 SIEMENS Landis & Staefa X10-02 / 4 Made in Germany X10-02 / 2 7719a01/0500 0...10 V Ri > 10 M Measurement of the detector’s signal with a Voltmeter is not normally required since...
- Page 9 Dimensions Dimensions in mm QRI2B... for lateral illumination 144,5 SIEMENS Landis & Staefa Made in Germany 7719m02/0603 Legend Available cable length (refer to «Type summary») QRI2A... for frontal illumination 144,5 162,8 9/11 Building Technologies CC1N7719en HVAC Products 02.06.2008...
- Page 10 Dimensions (cont’d) Cable ends stripped Connecting cable Brown Blue Black 7719m01e/0302 For AGG2.110 mounting kit Adapter nipple and adapter sleeve 7719m07/0302 AGG2.120 SW24 28,5 10/11 Building Technologies CC1N7719en HVAC Products 02.06.2008...
- Page 11 LN 3 8380 0102 0,2 mm elevated 4 241 88550 R0,3 7719m10e/0608 Company logo to LN 3 8380 0102 0,2 mm elevated © 2008 Siemens Building Technologies HVAC Products GmbH Subject to change! 11/11 Building Technologies CC1N7719en HVAC Products 02.06.2008...