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Explosion-proof loudspeakers series PGZ-GROM2 (EMH-20MDLOUD/TR)


Industrial safety standards require installation of a respective sound signaling device, which is actuated in case of alarm, emergency or danger for personnel, involved in modern industrial processes.

Explosion-proof loudspeakers series PGZ-GROM2 are intended for sound alarm and warning and are placed in stationary and movable transport vehicles. Explosion-proof loudspeakers have one tap hole M25x1.5 as per GOST 24705-2004 and may be completed with a cable gland depending on the type of connected cable. The enclosure is made from antistatic aluminum alloy. Explosion-proof loudspeakers series PGZ-GROM2 are intended for application in potentially hazardous areas with explosive gases and dust.

Upon the customer‘s request, the loudspeakers can be completed with explosion-proof speech interface unit, which allows storing pre-recorded messages. Explosion-proof loudspeaker is intended for continuous round-the-clock operation (transmission of pre-recorded information on safety assurance activities, on command). Selected speech message or sound signal is transmitted continuously until de-energizing of the loudspeaker or control signal deactivation. The speech interface unit is connected with PGZ-GROM2 loudspeaker by a cable up to 30 meters long, which enables to arrange it in a convenient place for setting and maintenance. Recording of speech messages is performed as per customer‘s specification.

Connection to speech interface unit /BS to the computer allows the customer: - to transmit messages recorded in the digital data storage of the loudspeaker with pauses between messages; - to transmit new speech messages using microphone or out of computer storage memory without recording them in data storage.

By default, the device is supplied without mounting bracket. To add mounting bracket to the assembly, /SKOBA option must be specified in the marking when ordering.

Scope of application – outdoor and indoor hazardous areas as per explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996), dangerous production facilities of I, II, III, IV hazard class supervised by Rostechnadzor and national technical supervision bodies of the CIS countries.