Ex i Temperature sensors

Ex i, intrinsically safe, for zones 0, 1, 2, 20, 21 or 22

  • The sensor is a standard-type RTD or TC temperature sensor (no ATEX/IECEx requirements)
  • The connection head or box is a standard-type, IP 65-protected head, with a protective earth connection screw (no ATEX/IECEx requirements)
  • The whole circuit must be designed as an intrinsically safe Ex i circuit (cable length, ATEX/IECEx transmitters, ATEX/IECEx barriers).

Investigated applicability

  • EPIC® SENSORS standard RTD types (Pt100) have been investigated for applying in Ex i circuits by an authorized body VTT Expert Services Ltd (nowadays Eurofins Expert Services Oy), and the resulting statement can be downloaded here: STATEMENT VTT-S-08226-13 (pdf).

Manufacturing authorization

  • Even though no certificate for this kind of simple passive apparatus is required by standards, it is sometimes needed for other reasons. Lapp Automaatio Oy has rights to produce Ex i type temperature sensors if needed. This is given in our production quality documents ATEX QAN (pdf) and IECEx QAR (link). Certified Ex i type sensors are produced only on request. 

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Update 25.3.2020

Dear customers, 

The Corona virus epidemic still has no significant impact on our performance. Products stored in Finland we continue delivering within the normal delivery times....

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Lapp Automaatio now offers the possibility to install the IoTKey® wireless measurement and remote monitoring system in hazardous industrial environments.

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Our customer service and sales will be closed throughout the Christmas week, December 23-27.
From Monday December 30 onward, it's business as usual again.

Please send your orders to us no later than...

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