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ATEX approval for valve islands with G3 electronics

02 August 2011

ASCO Numatics' Series 2005 valve islands with G3 electronics are now certified to ATEX category 3 zone 2-22, enabling the benefits of the G3 electronics to be applied to a wider range of installations. When mounted in an IP65 or Ex a cabinet, the valves are certified II 3G Ex nA IIC T4 Gc X for gas and II 3D Ex t IIIC T85°C Dc IP65 X for dust. The Series 2005 offers increased intelligence in the form of new diagnostic functions and a graphic display in place of the usual LEDs.

The display supports plain-language messaging of diagnostic information at both the module and communication node level. The G3 Series product line is a completely modular system that uses an innovative clip design, allowing easy module removal/replacement without dismantling the whole manifold.
The ATEX certification covers 3/2-5/2-double 3/2 NC-NC – 5/3 valves over a temperature range of -20°C < Ta < +46°C and a flow rate of 500 l/min. Each manifold can have up to 32 coils maximum with up to 16 coils energised simultaneously. Certification also covers the Ethernet/IP, Modbus TCP, DeviceNet and Profibus protocols, round M23 and sub-D 37 multipin connector and 16 and 8 way digital and analogue input/output modules.

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