Wlsn Smoke And Heat Detectors - Bosch ICP-EZM2 Easy Series System Reference Manual

92 en | Device Specifications and Overview
10.17

wLSN Smoke and Heat Detectors

The ISW-BSM1-SX (868 MHz) is a wireless smoke detector.
The ISW-BSM1-SY (915 MHz) is a wireless smoke and heat detector that provides fixed
temperature and rate-of-rise sensors.
Under normal conditions, the red LED flashes once every 8 sec while the sensor monitors the
surrounding environment. When the sensor detects smoke, the LED changes from flashing to
steady on and the sounder produces a loud continuous tone.
A self-diagnostic feature monitors detector sensitivity and operational status.
A cover tamper switch transmits a tamper signal when the cover is removed from its base, or
when the unit is pulled away from the wall.
The optical chamber is removable for easy maintenance.
Specifications
868 MHz
915 MHz
Power/Voltage
Fixed Temperature Sensor (ISW-
BSM1-SY)
Raye-of-Rise Sensor (ISW-BSM1-
SY)
Photoelectric Beam Obscuration
Sensitivity
Drift Compensation Adjustment
Average Alarm Current
Sounder
Self-diagnostics Feature
EN14604
Battery Replacement
The LED normally flashes every 8 sec. Replace batteries when the LED stops flashing and the
sensor chirps every 45 sec.
The low battery trouble chirps can be silenced for 24 hours by pushing the Test/Silence
Button. Refer to Figure 10.7 on Page 92 for the location of the Test/Silence Button.
Figure 10.7 wLSN Smoke Detector
1
2
F01U087835 | 02 | 2008.10
High intensity LED
Test/Silence Button
System Reference Guide
ISW-BSM1-SX
ISW-BSM1-SY
Two lithium batteries; 3 VDC
+57°C ± 3°C (+135°F ± 5°F)
+8.3°C/min>+41°C (+15°F>+105°F)
0.14 ± 0.04 dB/m
1.64%/m (0.5%/ft) maximum
70 mA
85 dBA at 3 m
Monitors detector sensitivity and operational status.
ISW-BSM1-SX
Easy Series
Bosch Security Systems, Inc.