LST 5251EM User manual

LST
Brand
LST
Model
5251EM
Category
Fire protection
Type
User manual

LST 5251EM

The LST 5251EM is a high-quality thermal detector designed to provide reliable fire detection in a wide range of indoor applications. With its advanced ADM loop technology and System Sensor/200 protocol, the LST 5251EM seamlessly integrates with compatible fire detection control panels, enabling continuous communication and periodic function testing.

As an addressable thermal detector, the LST 5251EM can be configured to operate either as a maximum heat detector with an alarm temperature of 58°C or 78°C or as a rate-of-rise heat detector with a maximum temperature of 58°C. This versatility makes it suitable for various environments and fire scenarios. The two LEDs with 360° visibility provide clear indication of the detector's activated condition.

LST 5251EM

The LST 5251EM is a high-quality thermal detector designed to provide reliable fire detection in a wide range of indoor applications. With its advanced ADM loop technology and System Sensor/200 protocol, the LST 5251EM seamlessly integrates with compatible fire detection control panels, enabling continuous communication and periodic function testing.

As an addressable thermal detector, the LST 5251EM can be configured to operate either as a maximum heat detector with an alarm temperature of 58°C or 78°C or as a rate-of-rise heat detector with a maximum temperature of 58°C. This versatility makes it suitable for various environments and fire scenarios. The two LEDs with 360° visibility provide clear indication of the detector's activated condition.

© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL +43 1 52114-0 • FAX +43 1 52114-27
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
5251EM_DBL_LST_EN_0804.PDF • PAGE 1
ABuilding Safety. Building Security.
Thermal Detector
5251EM
Description
The addressable Thermal Detector 5251EM is based
on the heat principle and was developed for the indoor
temperature supervision in a wide range of fi re detec-
tion applications.
When used with a Fire Detection Control Panel Series
BC216, the detector can operate either as maximum
heat detector with alarm temperature 58°C (EN 54-5
Class A1S) or alarm temperature 78°C (EN 54-5 Class
BS), or as rate-of-rise heat detector with a maximum
temperature of 58°C (EN 54-5 Class A1R).
The proven ADM loop technology with System Sen-
sor/200 protocol establishes a permanent communi-
cation between the fi re detection control panel and the
detector. That ensures a periodical function testing of
the detector. Fires are safely detected in the control
panel by continuously analysing the measured values.
The two LEDs with 360° visibility indicate the activated
condition of the detector. The detector address is se-
lected with two decadic rotary switches, thus allowing
to change the detector without additional tools.
A detector function test can be conveniently conducted
using a magnet or a detector test device. The detector
can be attached to various bases and it can be protec-
ted against theft.
• ADM loop technology with
System Sensor/200 protocol
• For use as maximum heat or
rate-of-rise heat detector
• Alarm temperature 58°C or 78°C
software selectable
• Optional connection of remote
indicator
• Function testable with magnet
© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL +43 1 52114-0 • FAX +43 1 52114-27
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
5251EM_DBL_LST_EN_0804.PDF • PAGE 2
ABuilding Safety. Building Security.
Specifi cations
Operating voltage Supply through loop voltage
Current consumption max. 200µA (quiescent)
Alarm temperature
Class A1S typ. 58°C (maximum principle), max. room height 7.5m
Class A1R typ. 58°C (rate-of-rise principle), max. room height 7.5m
Class BS typ. 78°C (maximum principle), max. room height 6m
Operating temperature
Classes A1S and A1R max. +45°C
Class BS max. +68°C
Ambient temperature -20°C to +60°C (continuous operation)
Relative humidity 10 – 93% (no condensation)
Dimensions ø × H 102 × 51 (mm)
Colour cream
Weight 102g
Approval VdS G200094
Order number 242002
Order name Thermal Detector/Anal./200/SS 5251EM
  • Page 1 1
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LST 5251EM User manual

LST
Brand
LST
Model
5251EM
Category
Fire protection
Type
User manual

LST 5251EM

The LST 5251EM is a high-quality thermal detector designed to provide reliable fire detection in a wide range of indoor applications. With its advanced ADM loop technology and System Sensor/200 protocol, the LST 5251EM seamlessly integrates with compatible fire detection control panels, enabling continuous communication and periodic function testing.

As an addressable thermal detector, the LST 5251EM can be configured to operate either as a maximum heat detector with an alarm temperature of 58°C or 78°C or as a rate-of-rise heat detector with a maximum temperature of 58°C. This versatility makes it suitable for various environments and fire scenarios. The two LEDs with 360° visibility provide clear indication of the detector's activated condition.

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