LST ND2251EM User's Manual
Contents
1. ND2251EM ADM loop technology with System Sensor 200 protocol indicator Extremely flat design The addressable Optical Smoke Detector ND2251EM uses the scattered light principle and was developed for the detection of smoke particles in a wide range of applications The modern design of the sensing cham ber allows to reliably evaluate the characteristics of fire The proven ADM loop technology with System Sen sor 200 protocol establishes a permanent communica tion between the fire detection control panel and the detector That ensures a periodical function testing of the detector In the control panel all types of fires are detected by continuously comparing fire patterns Optional connection of remote Constant response sensitivity Optical Smoke Detecto Function testable with magnet 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 selec ted 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 against2. theft Operating voltage Supply through loop voltage Current consumption max 200pA quiescent Ambient temperature 20 C to 60 C Relative humidity 10 93 no condensation Dimensions x H 102 x 45 mm Colour cream Weight 102g Vd S Approvals VdS G200052 Order number 241010 Order name Optical Smoke Detector Anal 200 SS ND2251EM Building Safety Building Security LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH A 1231 WIEN WIEGELESTRASSE 36 TEL 43 1 52114 0 FAX 43 1 52114 27 OFFICE LST AT WWW LST AT ALL RIGHTS RESERVED ND2251EM_DBL_LST_EN_0804 PDF PAGE 1
Download Pdf Manuals
Related Search