New explosion-proof horn sounders

Paul Boughton

The new D2x family from E2S Warning Signals is based on a high-output 116 dB(A) SPL 64-tone 4-stage horn sounder, which can be combined with a powerful 5 or 10 Joule Xenon strobe in a compact 130mm wide, 125mm deep die-cast marine grade aluminium housing. Designed for use in Zone 2, 22 and Division 2 hazardous locations, the D2x is a global product range, with multiple approvals permitting use in regions covered by IECEx, ATEX, NEC and CEC regulations.

With four remotely triggered alarm stages the D2x can signal multiple safety warnings or process events. In the combined units, the Xenon strobe beacon and the alarm horn sounder can be activated individually via separate terminations or linked for simultaneous operation from a common power supply. The horns offer 64 internationally and nationally recognised alarm tones plus continuous, intermittent, sweeping and alternating tones with an effective range of up to 125m (410ft); multi-sounder systems are automatic synchronised. In combined audible/visible units the polycarbonate beacon lenses are user-changeable, with a choice of colours.

The corrosion-proof, marine-grade aluminium die cast enclosure, available in either red or grey, is phosphated and powder coated with an ingress protection level of IP66 and NEMA Type 4/4X/3R and 13, ensuring resilience in the harshest of environments. Dual cable entries and duplicated cable termination provide the facility to loop in and out; minimising installation time and cost. For maximum compatibility, the devices can be powered from 24 or 48 VDC or 115 or 230 VAC.

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