Siemens Cerberus DOT1151A-Ex Stücklistenhandbuch

Cerberus® DOT1151AĆEx

Neural smoke detector, interactive,

intrinsically safe

Tec nical description

Fire & Security Products

Siemens Building Technologies Group

Data and design subject to change

without notice. / Supply subject to

availability.

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Siemens Building Technologies AG

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06.2001

Fire & Security Products

Siemens Building Technologies Group

1 Overview 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Characteristics 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Design 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Technical data 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Algo-Parameter sets for DOT1151A-Ex 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Design 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Principle of operation (see block diagram Fig. 3) 7. . . . . . . . . . . . . . . . . . . .

5 Self-test / function state 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Emergency operation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Response characteristics of the detector 9. . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Environmental influences 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.1 Influence of the ambient air temperature 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Other influencing variables 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Application 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.1 Compatibility 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.2 Adjustment functions / selection of parameter sets 10. . . . . . . . . . . . . . . . . . . . . .

9.3 Application 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.4 Wiring 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Commissioning 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Maintenance 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.1 Diagnostic possibilities 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2 Functional check / overhaul 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 Terms 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fire & Security Products

Siemens Building Technologies Group

06.2001

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

1 Overview

incl. base DB1151A

Dimensions

47...70

Ø 115

1.1 Characteristics

DFor application in explosion-hazard areas of zones 1 and 2

DHomogenous response behavior across a wide application spectrum

through freely programmable percentages of smoke and heat

DEfficient signal processing algorithms with downloadable, application specific

characteristics

for optimum detection reliability

DHigh-quality sensor system with temperature compensation

functions reliably also under critical environmental conditions

DHigh contamination resistance

through appropriate design of the measurement chamber, the protective grille

and automatic, continuous digital compensation

DComprehensive EMC concept based on the latest technology

allows installation also in difficult environments

DIntegrated multiple coincidence circuit

suppresses extreme electrical and optical interference signals

DState-of-the-art, microprocessor-controlled electronics

DTransmission of 4 different danger levels and function states each

DAutomatic, comprehensive self-test

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

1.2 Design

The PolyRex detector DOT1151A-Ex is installed in a modern, attractive, impact-resistant

plastic housing that fits unobtrusively into any room architecture. The detector is secured in

the DB1151A base with a vibration-proof bayonet fitting. Except for the identification mod-

ule that defines the installation location at the time the system is commissioned, the base

does not contain any electronic components.

The detector is equipped with a response indicator (red LED) to indicate alarm. Activated

from the control unit, the response indicator can also be programmed to provide informa-

tion for servicing purposes. Each detector is equipped with an output for connecting an ex-

ternal response indicator. This indicator is normally assigned to the connected detector but

it can also be assigned programmatically to any detector within the same object.

The detector is fully electronic and has no wearing parts. As protection against environ-

mental influences the electronic circuitry is shielded and the circuit board is coated with a

special protective varnish. For periodic factory overhaul the protective hood and grille can

be removed.

In explosion-hazard rooms the DB1151A detector base is mounted on the ceiling direct by

means of the recess box, or surface-mounted together with the DBZ1191 base attachment

and connected to the control unit with twin wire via a shunt Zener diode barrier and possibly

other devices. The base has spring terminals for connection.

Efficient installation, removal and testing of a detector is possible by means of the DZ1191

detector extractor and the RE6 testing unit. If an extension tube is used, work up to a ceiling

height of 7m can be performed without any further tools. A comprehensive range of base

accessories is available for special applications such as installation in humid environ-

ments, protection against unauthorized removal, etc.

IMPORTANT!

The DZ1193 optoelectronic detector tester and exchanger and the RE6T heat

detector tester may not be used in explosion-hazard areas!

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

2 Technical data

Normal ambient conditions, if nothing else is specified:

Temperature Ta=20°C (293K)

Air pressure: p = 1’000hPa (750 Torr)

Value

Parameters Symbol Unit min. typ. max. Conditions

Operating voltage UbV 18.5 28 modulated

Operating current

(quiescent condition) IbµA 300 ≤350

Capacity

Detection line

Response indicator line C

CnF

nF 1

≤33

Inductance

Detection line

Response indicator line L

LmH

µH–

≤40

Baud rate kBd 4.8

Response sensitivity

(software setting dependent on

algorithms)

D1%/m 1.3 6.6 smoke sensitivity with paraffin

test aerosol

Compensation

Compensation speed

Voltage increase

for detection

Voltage increase

for detection/h

1 / 64

Self test interval min. 15

Response indicator:

Flashing interval times: bright

dark

Response indicator current

1.5

depending on control unit

Elektromagnetic compatibility E

EV/m

V/m 50

30 1MHz...1GHz

1GHz...2GHz

Operating temperature Ta°C–25 +70

Humidity ≤34°C

>34°CrF

abs. F %

g/M3≤95

≤35

Storage temperature Tl°C–30 +75

Connection factor for interactive

elements IMK 1

Colour: white ~RAL9010

Classification Standards for explosion-hazard areas:

Standards EN 54-7

Application category IEC 721-3: 3K8H EN50014

EN50020

Ex classification EEx ib IIC T4 (–25°C ≤Ta≤70°C )

Test category IEC 68-1: 25/070/42

Protection category EN60529 / IEC529: IP44

Ex approval DOT1151A-Ex:

PTB Nr. Ex-99.E.2154

Environmental compatibility:

–Easy to uninstall and disassemble

–Halogen-free plastic material identifiable through embossed code

Intrinsic safety:

Intrinsic safety «i»when using a certified shunt Zener diode barrier with the following data:

Riw280Ω

Uiv28V

Iiv100mA

Piv700mW

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

2.1 Algo-Parameter sets for DOT1151A-Ex

AlgoRex smoke sensitivity index (1)

Parameter set Operating state Without temperature

influence With full temperature

influence

Response time

when testing with

test gas (~seconds)

APS083S

present for danger level 3 with

smoke 3.5 60

APS083S absent 1.3 3.5 60

2) 3)

!special no response to smoke (only temperature

actuation)

present

APS005S absent 1 2 110

(Default) special no response to smoke (only temperature

actuation)

APS082S for China only: Similar as APS005S, but thermal behaviour changed according

to chinese standards.

present

APS015S absent 1 2 85

APS015S special no response to smoke (only temperature

actuation)

present 60

APS006S absent 1 2.5 40

APS006S special no response to smoke (only temperature

actuation)

present 75

APS085S absent 1.4 4.3 45

APS085S special no response to smoke (only temperature

actuation)

present

APS084S absent 1.5 2 240

2) 3)

!special no response to smoke (only temperature

actuation)

present

APS009S absent 2 4 110

APS009S special no response to smoke (only temperature

actuation)

present

APS019S absent 2 4 85

APS019S special no response to smoke (only temperature

actuation)

present 60

APS007S absent 2 5 40

APS007S special no response to smoke (only temperature

actuation)

present 60

APS081S absent 48 * 30

APS081S special no response to smoke (only temperature

actuation)

present

APS080SH absent 5.5 12 15

1) 2)

!special no response to smoke (only temperature

actuation)

present

Test mode absent 2 5 5

With the exception of test mode, the parameter sets listed here are arranged in order of

sensitivity (APS080SH is the most sensitive).

* Comment: Slightly corrected values compared to those noted in the help of

AlgoWorks EP5 (SR1) update 2.

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

Note: all values are approximative !

Smoke sensitivity: To simplify the comparison of smoke sensitivities between the

parameter sets, we are specifying an AlgoRex smoke sensitivity index for danger level 3.

Please note, that this index is a relative figure, where ”2”means an increased sensitivity by

a factor of 2 (compared to the parameter set with index ”1”); therefore the detector will alarm

at half the smoke density if measured in the CEN smoke tunnel acc. to EN54.

An AlgoRex smoke sens. Index of ”0”means ”no alarm with smoke only”.

Important: The parameter sets APS083S, APS084S and APS080SH must only be ap-

plied for special applications!

APS080: Caution, low security against false alarm! Parameter set with very high sensitivity

and extreme fast reaction time.

APS083: In mode ”present”, detection of smoke without temperature rise will not lead to a

danger level 3. This behaviour is outside the standard EN54–7; in mode ”absent”, EN54–7

is fulfilled.

APS084: This parameter set prevents nuisance alarms due to short and single nuisance

signals. Long or multiple events may lead to danger level 3.

1) The detector DOT1151-Ex with APS080SH can have a slightly lower electromagnetic

compatibility (APS081S passed EMC tests in the meantime).

2) Not available for temporary change of detector parameter set on CT/CI due to further

risks in application.

3) IMPORTANT NOTE regarding APS083 and APS084 (see info MI290):

Unfortunately there has been a mistaken parameter value in detector DOT1151A Index

”ke”; however, this mistake only affects behaviour in parameter sets 083/084. As a result,

the detector may not be able to go into alarm on reasonable smoke density!

--> You must never choose APS083 or APS084 with a detector DOT1151A with Index ”ke”!

As a simple rule of thumb, only use APS083 or APS084 with detectors DOT115x with

Technical Index ”_f” or later.

Detectors DOT1151A-Ex are not concerned by this fault.

The Index is shown on the detector label as two letters following the part number (e.g.

DOT1151A: ”P/N 486695 ke”); first letter means ”Schematic Index”, second letter means

”Technical Index”. Both are in alphabetical order.

e1901a

Fire & Security Products

Siemens Building Technologies Group 06.2001

3 Design

The heart of the PolyRex detectors DOT1151-Ex is a high-quality opto electronic measure-

ment chamber that screens off extraneous light but optimally detects light-colored and dark

smoke particles. The light source, the light stop and the light receiver are arranged in such a

way that the light from the source cannot directly reach the receiver (Fig. 1 and Fig. 2). Only

when smoke particles are present in the optical path does some of the scattered light reach

the receiver and produce an optical signal.

The temperature sensor (NTC) is located in the detector dome.

Due to its optimized optical system, the temperature sensor installed in a protective jacket,

shielded electronics and special circuit board coating this detectors are highly immune to

environmental influences such as temperature, humidity, corrosion and electrical interfer-

ence fields.

Intrinsically safe detectors are marked with the model number and the Ex label.

Light source

Light receiver

Transmitter optics Smoke particles

Light stop

Fig. 1 Principle of the scattered light measurement

Light source

Light receiver

Labyrinth

Smoke particles

Labyrinth Light stop

Section A - A’

A’

NTC temperature sensor

Fig. 2 Detector design

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