WIKA Process Transmitter (CPT-20, CPT-21)

With capacitive ceramic measuring cell


  • Chemical and petrochemical industries
  • Process engineering
  • Pulp and paper industry
  • Water and wastewater
  • Hazardous areas

Special features

  • Ex protection per ATEX and IECEx
  • For applications to SIL 2 (SIL 3)
  • Dry ceramic measuring cell, high overload safety
  • Seven different case variants
  • Configuration via EDD (Electronic Device Description) and DTM (Device Type Manager) in accordance with the FDT (Field Device Tool) concept, e.g. PACTware

Sales Contact (Wika.sales@asyatrafo.com)




With its 4 … 20 mA, 4 … 20 mA HART®, PROFIBUS® PA or FOUNDATION Fieldbus™ output signals, combined with either intrinsic safety or flameproof enclosure ignition protection type (in accordance with ATEX and IECEx), the model CPT-2x is ideally suited to applications with the highest demands on measurement technology.

Robust and highly accurate
The capacitive ceramic measuring cell delivers especially accurate measured values, in particular with small measuring ranges, and thus has a particularly high overload. As a result of the special sealing concept, operation in almost all industries and applications is possible without difficulties. There are seven different case variants available, and thus it is possible to select a variant suited to every operating environment.

The case itself can be rotated through 330° and is available in plastic, aluminium and stainless steel. An electropolished stainless steel case (316L) is available to meet the high demands of the food and pharmaceutical industries. Easy configuration and operation
Service and configuration at the instrument is carried out using the optional display and operating module, which can be fitted in four positions. The operating menu has a simple and self-explanatory structure and has thirteen selectable languages as standard. Alternatively, the operating parameters can be set using the PACTware™ free and non-proprietary configuration software. An instrument-specific DTM enables easy integration into corresponding process control systems.


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