Jablotron JA-85ST wireless Fire detector + siren
The Jablotron JA-85ST is designed to detect the presence of fire inside a building. It has a built-in warning siren.
The battery powered detector has a built-in local warning siren combined with a red LED indicator. Alarm information will also be transferred via a wireless connection to OASiS systems.
The JA-85 detector combines an optical smoke sensor with a heat sensor. Both sensors have their outgoing signals processed digitally, resulting in higher false alarm immunity. The optical sensor works using a light diffusion principle and is very sensitive to the presence of large-sized particles which are characteristic of dense smokes. By contrast, the sensor is less sensitive to small-sized particles which are typical of cleanly burning fires. In particular, the smoke sensor is not capable of detecting the by-products of cleanly-burning fluids such as alcohols, for instance. Thats why it has a built-in heat sensor. This sensor provides a slower reaction when compared to the smoke sensor, but is much better at reacting to fires with rapidly rising heat producing only a little smoke. Smoke / heat sensor participation is configurable by jumper-settings.
|Power||3 x AA 1.5 V / 2.4 Ah alkaline batteries|
|Typical lifetime||approx. 3 years|
|Smoke detection||optical light scattering|
|Smoke detector sensitivity||m = 0.11 - 0.13 dB/m|
|Pursuant to||EN 14604, EN 54-7|
|Heat detection||class A1 according to EN 54-5|
|Alarm temperature||+ 60 °C to +65 °C|
|Communication band||868.5 MHz, Oasis protocol|
|Communication range||approx. 300 m (unrestricted area)|
|Dimensions||diameter 126 mm, height 50 mm|
|Operating temperature range||-10 °C to +65 °C|
|Also complies with||EN 54-25, ETSI EN 300 220, EN 60950-1, EN 50130-4 and EN 55022|