Brakel MSD 523 User manual

Datei: Ti_MSD_523_D_GB_DK.indd / Ausgabe 03 / 21.09.2010 / Art.Nr. 24999571
Herausgeber: STG-BEIKIRCH Industrieelektronik + Sicherheitstechnik GmbH & Co. KG •Trifte 89 • D-32657 Lemgo-Lieme • [email protected] •www.STG-BEIKIRCH.de
Features
Special features
Revision / Maintenance
Hours of operation
Function / Application
Connection
Technical datas
Page
7
7
7
8
8
8
9
Content
Scattered light smoke detector MSD 523

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Features
The scattered light smoke detector MSD 523 with digital signal processing and
intelligent logic has very good response behaviour with very few false alarms.
The MSD 523 is designed for connection to conventional control panels
evaluating a rise in current.
Special features
• digital signal processing
• alarm threshold tracking
• temperature-aided smoke evaluation
• signature alarm for smoke
• alarm lter to reduce the number of false alarms
• backwardly compatible with the SSD-521 smoke detector series
Revision / Maintenance
Note: The MSD 523 has an alarm lter to prevent false alarms.
To check out the smoke detector the detector can be set into the inspection
mode. In this operating mode a curtailed alarm lter function can be activated.
For this purpose the operating voltage must be switched off for a minimum of
10 seconds, or the reset switch must be depressed on the SHE control panel
unit. The alarm lter is then non-functional for 17 minutes, and the smoke
detector can be checked out with the test gas cleared by STG-BEIKIRCH.
After this period of time has elapsed the alarm lter is automatically
reactivated.
For connection to smoke and heat extraction systems with two-wire system
Please keep these operating instructions for future reference and maintenance. Subject to technical modications. Diagram is not binding.
Scattered light smoke detector MSD 523
Scattered light smoke detector MSD 523
42,1 mm
58,1 mm
118,8 mm
68 mm
VdS
G 207123
Rauchmelder mit Sockel
Smoke detector with base
Smoke detector with base

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Hours of operation
The heat detector has an automatic pollution compensation with LED indicator and according to DIN 14675 A1 it is
subject to the following operation hours:
a) If, during the annual performance test according to DIN VDE 0833-1, no variance of the responding qualities is tested,
the detector can remain in service.
b) If according to point a) the functionality is demonstrated, the detector can remain operating up to eight years. After this
time the detector has to be replaced respectively has to be tested in the factory and to be overhauled.
Function / Application
The MSD 521 detects smouldering, glowing and open res with smoke development at an early stage and is used
wherever smoke-developing aming res and smouldering res are to be detected at an early stage.
Light emitter and light sensor are arranged in the sensing chamber in such a way that light from the emitter cannot strike
the sensor directly. Only the light scattered from smoke particles (Tyndall effect) reaches the sensor and is converted
into an electrical signal. If this reaches the alarm value, an alarm is automatically sent to the control panel.
The integral alarm indicator indicates the alarm locally. It is visible from any angle, regardless of the mounting.
Connection
The scattered light smoke detector MSD 532 is connected to control panels as conventional re detector with current
increase. A 2-wire cable connects the control panel to the detectors in series.
Note: active end module only at TRZ and TRZ VdS.
End of line resistor and active end module are not included in delivery.
Scattered light smoke detector MSD 523
1
2345
6
1
2345
6
1
2345
6
+
+
+
4 5
7 8
10 11
1 2
19 18
10kΩ
10kΩ
1
2345
6
1
2345
6
1
2345
6
+
+
+
19 18
Active end module
End of line resistor 10K
last detector
2nd detector
1st. detector
Connection
SHE group module RGM
(all Versions)
Compact control panel 4A and 8A
TRZ-Basic / TRZ Plus
Group module MZ2 GM
SHE system LON node 8A
TRZ 2A / TRZ VdS
Connection

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Technical datas
The power supplies and electrical control equipment are to be operatetd exclusively with the components authorised by
the manufacturer.
Electrical properties
Rated operating voltage: 24 V DC
Alarm indicator: LED red
Operating current at 30 V, quiescent: max. 120 μA
Operating current at 30 V, alarm: min. 19 to max. 22.5 mA
Permissible voltage range: 18 to 30 V DC
Signal transmission: current rise
Remote indicator, short circuit proof: max. 5 mA
Mechanical properties
Dimensions: see pages 7
Weight: 125 g
Installation and ambient conditions
Monitored area¹: max. 150 m²
Mounting height¹: max. 16 m
Permissible air speeds: max. 20 m/s
Ambient temperature: -25 °C to +60 °C
Ambient conditions for moisture (constant,
without condensation) at ≤ 34 °C: 10 - 95 %, relative humidity
Ambient conditions for moisture (constant,
without condensation) at > 34 °C: max. 35 g/m³, min. 10 %, relative humidity
Authorisations and certications
Standards: EN 54-7
Degree of protection IEC 529: IP 44
Approval VdS: G 207123
Approval CPD: 0786-CPD-20330
Material
Housing: ABS/PC
Colour: electro white
Trouble-free and safe operation is only warranted when used in conjunction with appropriate manufacturers control unit.
Request a technical conformity declaration when using drives from other manufacturers.
¹ Values dependent on the ceiling design (height, inclination) according to project guidelines that are specific to each
country.
Scattered light smoke detector MSD 523