1. Overview of JTW-BD-885 point-type temperature sensing fire detector
JTW-BD-885 point temperature sensing fire detector is a two-wire differential temperature sensing detector. This type of detector is designed to provide protection for open areas and needs to be used with compatible controllers.
The detector adopts the rapid reaction circuit of the thermal-sensitive element with modern technology, which can be used in various harsh environments, with simple maintenance and low failure rate.
The detector is powered on and the controller. When the detector is in a normal monitoring state, the light emitting diode (LED) is not lit. When the detector is in an alarm state, the light emitting diode (LED) locks to be always lit.
2. Technical parameters of JTW-BD-885 temperature sensing fire detector
weight 95g
size 102mm (diameter)×48mm (height)
range of working temperature -10 ℃ to 50 ℃
Working humidity range 10% to 95% relative humidity, no condensation
Working voltage range 8.5 to 35VDC
Maximum ripple voltage 30% (peak-peak)
Quiescent Current ≤90μA
Alarm current 10mA-130mA
Alarm reset time Instant power outage (0.3 seconds MAX., 2.5VDCMIN.)
Alarm temperature 60℃ (fixed temperature) or 8.3℃/minute (differential temperature)
Power-on time ≤5 seconds
Execution standard GB4716-2005
