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Explosion-proof intercom digital DWEx buy in Almaty
Buy Explosion-proof intercom digital DWEx
Explosion-proof intercom digital DWEx

Explosion-proof intercom digital DWEx

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Kazakhstan, Almaty
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Technical characteristics
  • BrandArmtel
Send a request for and by phone +7(727)391 02 58

The explosion-proof digital loud-speaking intercom of DWEx is intended for the organization of bilateral simplex communication as a part of the GGS wire system.
The intercom of DWEx is applied in potentially explosive gas environment, except mines and their land structures dangerous on firedamp where under the terms of operation the GGS usual equipment is inapplicable.
DWEx intercom case dielectric is also manufactured of steklonapolnenny material. Material and a design of the case provide crash-worthiness and chemical stability.

Technical characteristics of an intercom of DWEx

Name of parameter Unit.


Number of communications - from 1 to 6
Strip of a range of frequencies of a path of transfer of a sound signal Hz from 300 to 6800
Quality and norms of legibility rechipo GOST P 50840-95 - it is not worse than II
Level of sound pressure of the built-in loudspeaker with the maximum loudness dB 95
The maximum working current (with the additional amplifier of 25 W) And 1,1
The maximum switched current in a chain of the external actuation (alarm) mechanism, at the feeding tension ~ 220 V And 1
The most admissible current in the communication line at catering services on phantom chains ma 300
Nominal napryazheniyepitaniye In - 48
Range of admissible values of supply voltage In from-60 to - 36
Electrical protection class (in accordance with GOST - II
Type of a climatic modification (in accordance with GOST 15150-69) - B5
Explosion protection class - 2ExedibmIICT6
Degree of protection against penetration of foreign substances and water (in accordance with GOST 14254-96) - IP 65
Range of admissible values of temperature of air ºC from - 40 to +50
Overall dimensions mm 479х132х200
DWEh weight, no more kg 11,5
Linear Ua/UbDWEx interface - U-interface, CCITT
Protocol of transfer - WL "Neumann" or "Armtel"
Technical characteristics at supply voltage 48B Maximum electric power of the main amplifier W 1
Rest current, no more ma 25
The maximum working current (without additional amplifier of 25 W) ma 95
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Explosion-proof intercom digital DWEx
Explosion-proof intercom digital DWEx
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