Smoke Sensor; Temperature Sensor - AJAX FireProtect 2 Jeweller User Manual

Smoke sensor

FireProtect 2 detects smoke with a bispectral optical sensor. Inside the smoke
chamber, the sensor has blue and infrared LEDs which emit light at different
wavelengths. This technology allows the detector to determine the size of the
volatile particles inside the chamber and respond only to smoke, ignoring
vapour and steam.
The smoke chamber in FireProtect 2 is protected from dust, dirt, and insects.
Even if dust gets inside and settles, this does not threaten or impair re
detection. The optical system is designed to prevent non-volatile particles from
getting within the eld of both blue and infrared LEDs at the same time. So that
situation does not cause a false alarm.
The HazeFlow 2 software algorithm also protects against false alarms. When an
alarm is detected, the algorithm additionally processes the data received from
the detector and con rms the alarm.

Temperature sensor

Two built-in class A1 thermistors detect a rapid rise and exceeding the
temperature threshold in FireProtect 2. This class of thermistors noti es of
alarms when a rapid temperature rise or static temperature is detected in the
range of +54°C to +65°C.
The thermistors are mounted outside under the front panel of the detector. This
allows you to respond to threats faster than when the sensors are inside the
detector enclosure.
FireProtect 2 reports that the temperature threshold has been exceeded as soon
as its value exceeds +64°C. The detector reports a rapid temperature rise if the
indicator increases by 10°C within one minute. If the temperature indicator rises
sharply by 20°C or more, the detector alerts immediately.
CO (carbon monoxide) sensor
FireProtect 2 has a chemical sensor which detects dangerous levels of carbon
monoxide. The operation principle of the sensor is based on a chemical
reaction. There is an electrolyte bath inside the sensor. When a speci c level of