Calectro ST-P-DA in Texas

TECHNICAL SPECIFICATIONS
Operating voltage: 16-30 V DC
Smoke detector module: White PC with metal net around the
chamber
Socket: White PC
Working current: approx. 0.04 mA
Service alarm current: approx. 13 mA
Alarm current: approx. 48 mA
Operating temperature: -20 ° C to +50 ° C
Max. Humidity: 99% RH
Tests according to EN-54: LPC (England)
Weight: approx. 150 g
Service alarm display: Green LED
Fire alarm indicator: Red LED

GENERAL INFORMATION
The optical smoke detector warns of erupting prematurely
Fire, especially in fires that form large particles, d. H. at
Smoldering.
The measuring chamber contains a transmitter and a receiver.
Normally, the pulsed light beam from the transmitter does not strike
the receiver. When smoke particles enter the chamber,
these reflect the beam of light to the receiver, and an alarm
is output. The alarm is indicated by a red LED on the
Smoke detectors are displayed and the alarm status is retained until
it is manually reset on the control unit. In operating position
the transmitter pulses every eight seconds to a low one
Maintain monitoring current.
The smoke detector is designed to be opposite
Air velocities, pollution and
Radio frequency interference is largely insensitive.
The smoke detector model is mounted in the base using a bayonet mount
used, so that a simple installation of the smoke detector is possible
If the smoke detector is contaminated, it gradually changes into
an alarm. To avoid unnecessary alarms, the
Smoke detector via a pre-alarm or service alarm (green
LED), indicating that the smoke detector module has been cleaned
must become.