Gas Sensor, Alarm Smoke Detector, Photoelectric Smoke Sensor (TA-2988)

Alarm Smoke Detector TA-2988

Introduction

TA-2988 series optical smoke detectors are designed to respond to a wide spectrum of fires and ease installation. every unit is individually tested and calibrated to ensure high reliability and prevent false alarms
Advanced photoelectric smoke sensing technology
Durable sensor head; excellent smoke access
Ar (auto reset) function for security systems(optional for 4 wire models)
N/c (normal/close)-n/o (normal/open) selectable relay output
Easy installation and maintenance
Modern design (white and beige colors)
Freq. :3~5 sec
Sensor base: standard and shottky diode
Remote led
Comply with en54 and ce
Smoke sensitivity:EN 54-5/7:2000 standard
Detection range:100 square meters rating for smoke sensor; 50 square meters rating for heat sensor
Start-up current:70 μa maximum

Alarm impedance:for 2-wire models: 100Ω+3v max; 560Ω+3v max (red led open circuit)
Alarm indicator:led continuously emitting red light
Temperature range: -10 °C to 50 °C
Remote output:15 ma max, diode gate
Humidity:0 to 95% rh, noncondensing
Alarm contact:for 4-wire: n/o or n/c operation
Form a: 1.0a 30vdc/0.5a 125vac
Dimensions:10mm (dia) x 46mm (ht) with base
Weight:130g/set with base