Industry / ATEX and Hazardous Areas
Differential pressure in hazardous areas — intrinsically safe, from 40 Pa span
Where flammable gases, vapours, dusts, or mists can occur, ATEX directives apply. Rixen's RW65_EX_II is intrinsically safe for Zones 0/1/2 and 20/21/22 — a mechanical differential pressure gauge with built-in 2-wire transmitter, from 40 Pa span.
A
What ATEX requires here
EU Directive 2014/34/EU applies to equipment and protective systems in explosive atmospheres. Intrinsic safety (Ex ia) achieves this by limiting current and voltage in the circuit.
- Certified power supply is mandatory
- Wiring with approved cables and segregation
- Documented conformity required
- Recurring inspection of the installation
B
Why the ring balance is an elegant solution here
The measuring principle of the ring balance is entirely mechanical — no pressure-sensitive sensor, no diaphragm, no spring. The integrated transmitter reads only the rotation angle of the ring body contactlessly and converts it into a current signal. This transmitter is the intrinsically safe element.
C
Technical parameters
Trusted by
In general hazardous area applications, Rixen instruments are trusted by: SIEMENS AG, Wacker Chemie, EnBW, Evonik AG, HONEYWELL, ABB.
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