Limiting the amount of energy entering a hazardous area

NHP OFFERS a range of low- powered, highoutput, intrinsically- safe signalling products from Moflash. These, says NHP, are ideally paired with the corresponding intrinsically safe barrier from GM International, to create an easy, off the shelf KIT solution for all signalling needs.

The intrinsically-safe protection method is based on the principle of limiting the amount of energy entering a hazardous area to below the level required to ignite the hazardous substances in the atmosphere. Intrinsically Safe barriers serve the purpose of limiting the input energy for devices in hazardous areas, allowing the integrity of the intrinsically- safe circuit to be maintained.

The Moflash range consists of a sounder which is 24VDC with a 105dB output, a beacon which is 24VDC with nine bright LEDs for high visual output, and the sounder/beacon combination unit. These devices are not only suitable for all hazardous environments but also come with Group I certification for use in underground mining.

Available in a range of colours, this solution is rated for hazardous zones 0,1,2,20,21 and 22 in IIC (Gas) and IIIC (Dust) environments. In addition, they areT5 and T6 temperature-rated, making them a unique and costeffective alternative to their heavy- duty Ex d Flameproof counterparts.

NHP’s easy-to-use KIT offering provides the perfect intrinsically- safe solution for hazardous area applications, promises NHP.