An intrinsically safe keyboard certified to ATEX 2014/34/EU and IECEx for use in Zone 1, 2, 21 and 22 explosive atmospheres - energy-limited circuitry that cannot ignite gas or dust, sealed to IP66/IP68, with galvanic isolation barrier for safe-area PC connection.
Standard keyboards are potential ignition sources in Zone 1 and Zone 2 areas. This keyboard limits electrical and thermal energy below the ignition threshold of the most hazardous gases - even under fault conditions.
Certified to the European ATEX directive and the global IECEx scheme - accepted by inspection bodies and regulators for Zone 1, 2 (gas/vapour) and Zone 21, 22 (dust) locations.
Energy-limiting design (Ex ia protection concept) keeps spark energy and surface temperature below the ignition threshold of gas group IIC (including hydrogen) under normal and fault conditions.
Fully sealed polyester foil or stainless steel overlay - no gaps for gas or dust ingress between or under keys, rated for immersion and high-pressure water jets.
Supplied with a galvanic isolator (iSOLATE-type barrier) that powers the keyboard from a safe-area PC - no mains voltage enters the hazardous area. Cable run up to 50 m.
Rated for Gas Group IIC (hydrogen, acetylene - the most hazardous group) and Dust Group IIIC, covering the widest range of explosive atmospheres in one certified product.
One-piece foil construction with laser-etched legends protects against excess dirt, oils and accidental spills - cleanable in place with industrial detergents without compromising the seal.
The ATEX keyboard connects to a standard PC or workstation located in the safe area via a galvanic isolation barrier. The barrier is powered by the PC's keyboard port - no separate power supply, no mains voltage in the hazardous area. Cable length up to 50 m on CAT5 STP.
Galvanic isolation barrier limits current, voltage and energy - no spark or hot surface possible even under two-fault conditions.
Keyboard signal carried over CAT5 STP through the isolator to a safe-area PC - up to 50 m cable distance.
One-piece foil overlay or stainless steel housing sealed to IP66/IP68 - prevents gas and dust ingress at the keyboard body.
Num Lock, Scroll Lock and Caps Lock LEDs - energy-limited to remain within intrinsic safety parameters.
Tailor the keyboard to your zone classification, process environment and pointing device needs.