DOKA - а

Safety can be beautiful

Functionality

“DOKA – a” is installed in closed space for continuous detection of fires accompanied by the appearance of smoke, operating with a built-in battery.

"Doka - a" provides:

* AFA is an autonomous fire alarm system consisting of a group of 2 to 40 DOKA-a detectors connected by a two-wire line. In addition, an external fire warning device (siren, or Smart Home system, or GSM alarm system, or other automatic equipment) can be connected to any “DOKA-a”, for which a signal can be generated by closing a normally open line.

Variants of "DOKA - a" application

Variant 1

"DOKA - a" independently detects smoke and notifies about the fire

Variant 2

"Doka - a" is combined into AFA. One goes into the "Fire" state and for the others generates a signal "Fire alert"

Variant 3

The annunciator (siren) with its own power supply is connected to "DOKA - a". When switching to the "Fire" state, the detector closes the siren feed circuit.

Variant 4

"DOKA - a" is connected to a normally open loop of any automatic equipment that has a fire warning function. When switching to the "Fire" state, the detector closes the loop.

You can mix options 2, 3, 4 in any combination. The siren and / or automatic equipment can be connected to any of the detectors in the AFA system.

 

The advantages of "Doka - a"

Dust-resistant, due to the measuring chamber which is hidden under the body and protected by a thin mesh. The dust settles in special compartments, without reaching the camera.

The body is made with vertical and horizontal smoke outlets, which allows you to catch currents in any direction and quickly respond to the first signs of fire.

Operates in an extended temperature range: from –10 ° С to + 50 ° С

Has reliable contacts for connecting wires

9 reasons to include "DOKA-a" in your building project

1.

Keeps sensitivity to smoke, adapting to any operating conditions (dust).

2.

The measuring chamber is hidden under the body and protected by a thin mesh. The dust settles in special compartments, without reaching the camera. It allows to use “DOKA-а” even in industrial conditions.

3.

Has reliable contacts for connecting wires with a cross section of up to 1.5 mm2.

4.

Will definitely adorn any modern interior.

5.

Battery life from 12 months.

6.

The body is made with vertical and horizontal smoke outlets, which allows you to catch currents in any direction and quickly respond to the first signs of fire.

7.

Consumption current “DOKA-a” is less than 65 μA, which reduces the load on the output circuits of the control panel and reduces the estimated capacity of the battery for power backup.

8.

Meets all requirements.

CERTIFICATE 1922-CPR-1426
DoP №405-CPR-1426/2020

9.

There is no need to include resistors in the specification. The current value in the “Fire” state is set by a combination of two jumper straps on the case.