Explosion-proof horn-type fire alarm device GVR-Exd-Prometheus

Explosion-proof horn-type fire alarm device GVR-Exd-Prometheus is intended to transmit voice messages and other sound information from external sources into explosion-hazardous zones of industrial facilities and infrastructure objects

It is used as a part of fire and security alarm systems, alarm annunciation, evacuation control and industrial-engineering communication systems

It may be used for transmission of news information and music

Explosion-proof marking 1Ex db IIC T6 Gb X / Ex tb IIIC T85°C Db X

It is used in 1-st and 2-nd class explosion hazardous zones of enclosed promises and external installations

May be operated with public-address amplifiers of all in-house and foreign brands

There are following types of the fire alarm device:

• GVR-Exd-10-Prometheus - explosion-proof horn-type fire alarm device with a power of 10 W;

• GVR-Exd-20-Prometheus - explosion-proof horn-type fire alarm device with a power of 20 W;

• GVR-Exd-30-Prometheus - explosion-proof horn-type fire alarm device with a power of 30 W;

• GVR-Exd-50-Prometheus - explosion-proof horn-type fire alarm device with a power of 50 W.

Working temperatures from -65 to +85 ^оС

Type of explosion protection

Exd

Protection is made in compliance with GOST 14254

Power voltage, max. 100 V

Effective operation frequency range, Hz 400-4500

Sound pressure level at 1 m distance:

• GVR-Exd-10-Prometheus - 105 dB;

• GVR-Exd-20-Prometheus - 108 dB;

• GVR-Exd-30-Prometheus - 110 dB;

• GVR-Exd-50-Prometheus - 112 dB.

Resistance to radio and electro-magnetic interference 3 class

Seven types of cable entries 

Explosion-proof voice fire alarm device  GVR-Exd-Prometheus is includes into the 
“Gazprom” JSC stock item catalogue

Device warranty period is 18 months