valutazioni - 2, GPA: 4.5
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Facilità d'uso
The modern design of both measurement systems and the analysis of the parame- ters by means of a special algorithm allow to reliably evaluate the characteristics of fire. The sensitivity of the detector can be individually adjus- ted in 5 steps between 1.5%/m and 5.2%/m according to the application. Three steps have a fixed sensitivity, whereas two self-learning steps automatically adjust the sensitivity to short-term changes of the environmental conditions. Furthermore, the optical detection unit can be completely disabled for a thermal-only operation. The proven ADM loop technology with System Sen- sor/200 protocol establishes a permanent communi- cation between the fire detection control panel and the detector. That ensures a periodical function testing of the detector. The influence of contamination on the optical measu- rement system is compensated for by using intelligent evaluation algorithms. With that, the response sensiti- vity of the detector is kept constant for a long time – a further effective step to avoid false alarms. 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. The detector can be attached to va- rious bases and it can be protected against theft. • ADM loop technology with System Sensor/200 protocol • Combination of optical and thermal characteristics of fire • Two self-learning and three fixed sensitivity levels • Thermal-only operation • Constant response sensitivity • Function testable with magnet Multisensor 2251TEM Description The addressable Multisensor 2251TEM uses the scattered light principle as well as a separate thermal detection unit. It was developed to detect the charac- teristics of fire in a wide range of applications, and to avoid deceptive alarms. The modern design of both measurement systems and the analysis of the parame- ters by means of a special algorithm allow to reliably evaluate the characteristics of fire. The sensitivity of the detector can be individually adjus- ted in 5 steps between 1.5%/m and 5.2%/m according to the application. Three steps have a fixed sensitivity, whereas two self-learning steps automatically adjust the sensitivity to short-term changes of the environmental conditions. Furthermore, the optical detection unit can be completely disabled for a thermal-only operation. The proven ADM loop technology with System Sen- sor/200 protocol establishes a permanent communi- cation between the fire detection control panel and the detector. That ensures a periodical function testing of the detector. The influence of contamination on the optical measu- rement system is compensated for by using intelligent evaluation algorithms. With that, the response sensiti- vity of the detector is kept constant for a long time – a further effective step to avoid false alarms. 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. The detector can be attached to va- rious bases and it can be protected against theft. • ADM loop technology with System Sensor/200 protocol • Combination of optical and thermal characteristics of fire • Two self-learning and three fixed sensitivity levels • Thermal-only operation • Constant response sensitivity • Function testable with magnet A © LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL +43 1 52114-0 • FAX +43 1 52114-27 2251TEM_DBL_LST_EN_0819.PDF • PAGE 1 OFFICE@LST.AT • WWW.LST.AT • ALL RIGHTS RESERVED Specifications Specifications Supply through loop voltage Current consumption typ. 250.A (quiescent) Alarm temperature 57°C (maximum-heat component) Operating temperature max. +45°C Ambient temperature -20°C to +60°C (no condensation or icing) Relative humidity 10 – 93% (no condensation) Dimensions o . H 102 . 45 (mm) Colour cream Weight 115g Approvals VdS G201041 At operation in thermal-only mode: EN 54-5 Class A1R 57°C maximum and rate-of-rise activation Room height max. 7.5m Order number 241020 Order name Optical-Thermal Detector/Anal./200/SS 2251TEM Building Safety. Building Security. A © LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL +43 1 52114-0 • FAX +43 1 52114-27 2251TEM_DBL_LST_EN_0819.PDF • PAGE 2 OFFICE@LST.AT • WWW.LST.AT • ALL RIGHTS RESERVED ...