Related Manuals for Siemens Cerberus DLO1191
Summary of Contents for Siemens Cerberus DLO1191
- Page 1 Manual DS11 Section 3 Cerberus® DLO1191 Linear smoke detector Technical description Planning Installation Commissioning Cerberus Security Siemens Building Technologies for People A s s e t s Cerberus Division...
- Page 2 D a t a a n d d e s i g n s u b j e c t t o c h a n g e w i t h o u t n o t i c e . / S u p p l y s u b j e c t t o availability E C o p y r i g h t b y S i e m e n s B u i l d i n g T e c h n o l o g i e s A G...
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Page 3: Table Of Contents
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Page 5: Overview
Efficient signal processing algorithms with application-specific characteristics Comprehensive EMC concept based on the latest technologies enables the detector to be installed in difficult environments Integrated multi-coincidence circuit suppresses extreme electrical and optical noise signals Automatic and comprehensive self-test Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 6: Design
DLF1191-AC can be used to eliminate this. Accessories: Detector heater DLH1191 for DLO1191, against condensation of the lens Auxiliary tools: Detector adjustment set DZL1191 consisting of: Adjustment device Test filter Aiming device e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 7: Operating Principle
(S ) becomes smaller. smoke Scattering Scattering Absorption Light beam Residual light Smoke particles Scattering Fig. 2 Measuring principle of the linear smoke detector with smoke Extinction = Absorption + Scattering Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 8: Technical Data
21.2 33.3 modulated (quiescent) Operating current (quiescent condition) Baud rate Response indicator Flashing intervals: light depending on control unit dark Response indicator current Connection factor – – – Isolator factor = 1 e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 9: General Data
To AlgoRex interactive fire detection system with AlgoLogic S11 To Cerberus control units with collective detector evaluation Environmental compatibility: Easy to overhaul Easy to uninstall and disassemble Plastic material identifiable through embossed code Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 10: Design And Principle Of Operation
The reflector possesses the characteristic to retransmit the received light. Effective region Core region Scattered region Fig. 4 Structure of the infrared beam e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 11: Alignment Possibilities
È È È 100m Fig. 7 Vertical adjustment range of the optical system max. 5° above and below the axis One rotation of the knurled screw moves the beam at 100m approx. 1.15m. Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 12: Reflectors
In principle, the reflector foil has the same effect (func- tion) as the prism. Compatibility Interactive Collective Fire detection system S11, MS9 Control unit CS1140 CS11.., CZ10 e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 13: Description Of Block Diagram
6.3 (electronic alignment) – Detector heating device Test point for production Reserve Transmitter Line Pream- µP ASIC interface plifier Receiver DIP switches external AI Reed internal AI Adjustment contact device Fig. 10 Block diagram Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 14: Functions In Operation With Interactive System
Response threshold 1...3 corresponds to danger levels (G1 ... G3) for standard sensitivity Signal [%] 0% compensation value 70% response threshold 1 (G1) 85% response threshold 2 (G2) 100% response threshold 3 (G3) Signal NF = Compensation Time e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 15: Self-Test / Functional State
Response threshold The response threshold corresponds to a danger level. An alarm algorithm is activated when the response threshold drops. According to the sensitivity setting, the response threshold is higher or lower. Siemens Building T echnologies e1276e Cerberus Division 09.2000... - Page 16 ”smoothing filters” for subsequent evaluation. In this way extreme peak values caused by signal interference are ”smoothed”. An alarm is triggered based on the smoothed signals. Counts Raw data Smoothing Time e1276e Siemens Building T echnologies Cerberus Division 09.2000...
- Page 17 Smoothing filter B filters out reflections. Reflecting or shining surfaces, which are too near at the path of the beam, can impair the detector. Smoothing B > actual compensation value x 1.5 = reflection Siemens Building T echnologies e1276e Cerberus Division...
- Page 18 Typical events and results for the 4 filters: Fire Raw data Gradient indicator Time Time Thermal turbulence Raw data Noise indicator Time Time Repeated interruptions Asymmetry indicator Raw data Time Time Test filter Raw data Jump indicator Time Time e1276e Siemens Building T echnologies Cerberus Division 09.2000...
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Page 19: Fuzzy Logic
The different «filtered» and smoothed signals are combined with fuzzy logic. A diagnosis is prepared automatically and on-line. Principle of the fuzzy logic Beam Signal interruption Modification of alarm Noise Condensation criteria Gradient Signal Diagnosis/ Jumps misapplication warning Asymmetry Test filter Regulating Fuzzification Defuzzification Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 20: Possible Diagnosis Results
If the test filter is held in the infrared beam, it causes a sudden decrease in signal strength without however, reaching zero. This characteristic causes the detector to activate an alarm after approx. 10s. e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 21: Planning
(see section 4.6.3) and/or additionally to install flame detectors. If careful attention is not given to these points, the linear smoke detector system cannot function correctly and sometimes later leads to insoluble problems with unwanted activation of fault and alarm signals. Siemens Building T echnologies e1276e Cerberus Division... -
Page 22: Fields Of Application
Low rooms or halls with crane tracks Beam interruptions by moving persons or objects Production rooms, garages with diesel engine ve- False alarms through accumulation of hicles smoke, dust, steam etc. e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 23: Monitoring Areas With Flat Ceilings
Additional DLO1191’s on the slope of the ceiling The number of DLO1191’s required results from the maximum permissible monitoring width shown in section 4.11 Fig. 12 Arrangement with 3 monitoring beams on a sloping ceiling Siemens Building T echnologies e1276e Cerberus Division... - Page 24 With sloping ceilings the smoke is channelled into the gable, i.e. there is an increased smoke concentration in this area. Therefore, the monitoring width per DLO1191 can be increased according to section 4.11 e1276e Siemens Building T echnologies Cerberus Division 09.2000...
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Page 25: Monitoring Areas With Joist Constructions
When distance exceeds max. monitored area mount more than one DLO11.. per section Min. gap between two parallel beams determined by distance Fig. 16 Detector layout within joist construction Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 26: Detection Of Smouldering Fire In High Rooms
Distances are approximate, i.e. they depend on detector and reflector toler- ances and can easily vary by a few metres. The important thing is that sufficient signal strength is achieved. e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 27: Panes Of Glass
Partial light scatter correct, the receiver is not affected incorrect, the receiver is affected Fig. 18 With the penetration of panes of glass, check the angle in relation to the optical axis Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 28: Application Example
90°. Recommendation: In such cases hit the beam in a light angle of 5° – 10° to the reflector, in order that such reflections which cause interference can be avoided. e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 29: Minimum Distances Between Two Pairs Of Detectors
(N < 0,2) Fig. 21 Distance from IR beam ⇒ ceiling The steeper the gable roof, the greater the distance must be between the IR beam in the gable and the ridge. Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 30: Maximum Monitoring Width
DLH1191 must be used to prevent. Condensation of the front cover cause trouble or false alarms. For this application and for short dis- tances, use the reflector DLR1191 with built-in heating. e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 31: Installation Locations
80,000 x 30 x 0.000012 = 28.8mm DLO11.. Reflector correct Fig. 24 Possible solution by mounting of the DLO1191 on the stable surface and mount- ing of the reflector on the instable wall Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 32: Accessibility
Suitable equipment for this purpose includes fixed ladders, catwalks, etc. or safe mobile equipment such as stacker trucks, sky-workers etc. Fig. 25 Difficult and dangerous work using a ladder Fig. 26 Precise and safe work using a permanent platform e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 33: Installation
Mounting plane DLO1191: Response indicator always at the bottom! Fig. 27 Installation of the DLO1191 Reflector DLR1191 153,5 Reflector heating must be mounted beneath PG16 Mounting plane DLR1191 Fig. 28 Installation of the DLR1191 reflector Siemens Building T echnologies e1276e Cerberus Division 09.2000... -
Page 34: Wiring
# # # # # # # # Connection detector heater Connection adjustment unit Fig. 30 Connection of the detector heater e1276e Siemens Building T echnologies Cerberus Division 09.2000... -
Page 35: Interactive Mode
«MB» = IRED pulse signal (for adjusting the lenses during detector production) Z MB Y X W V «Z» = auxiliary terminal Auxiliary supply for detector heater (option) 24V – Fig. 32 Connection diagram for collective mode Siemens Building T echnologies e1276e Cerberus Division 09.2000... - Page 36 # # # # Alarm at beam interruption (< 60s) # # # # «S6 OFF» Fault at beam interruption (< 30s) * Operating conditions according to BS 5839: Part 5 Fig. 33 Settings e1276e Siemens Building T echnologies Cerberus Division 09.2000...
- Page 37 Mirror with backsight Foresight Locking screw Knurled screw for horizontal adjustment Locking screw Reflector Knurled screw for vertical adjustment Fig. 34 Mount the aiming device and align the detector to the reflector Siemens Building T echnologies e1276e Cerberus Division 09.2000...
- Page 38 Repeat the adjustment proce- dure! Disconnect the adjustment set from the detector. Reinstall the detector cover. # # # # Connection adjustment set Fig. 35 Adjustment set e1276e Siemens Building T echnologies Cerberus Division 09.2000...
- Page 39 But first the control unit must be switched to «Address distribution mode». A test alarm can also be combined with the addressing. Siemens Building T echnologies e1276e Cerberus Division 09.2000...
- Page 40 Is the beam sometimes subject to mist, steam or dust? Is there danger of condensation? Does the sun or another powerful light source impinge on the detector direct? Do radiators have an influence on the beam (thermal turbulence)? e1276e Siemens Building T echnologies Cerberus Division 09.2000...
- Page 41 Plexiklar, or a mild soap solution, depending on the en- vironmental conditions and severity of contamination at the installation site. Do not use any solvents or steam jets. Siemens Building T echnologies e1276e Cerberus Division 09.2000...
- Page 42 Imprecise logic Load factor for interactive elements Infrared IRED Infra-Red Emitting Diode Load factor for collective elements Compensation value (reference variable) µp Microprocessor Range Working range of the electronics Fire detection system S11 e1276e Siemens Building T echnologies Cerberus Division 09.2000...
- Page 43 Siemens Building T echnologies Back_e Cerberus Division 09.2000...
- Page 44 Siemens Building T echnologies AG Cerberus Division CH 8708 Männedor Alte Landstrasse 411 Cerberus T el. +41 1 - 922 61 11 Security +41 1 - 922 64 50 for People .cerberus.ch and Assets Replaces e1276d Doc. no e1276e Siemens Building T...