WIKA IS-20 Intrinsically Safe Pressure Transmitters for Hazardous Area Use

The WIKA IS-20 series of transmitters is designed for industrial pressure measurement application in hazardous areas where intrinsically safe ratings are required.  The transmitters have FM, ATEX, and CSA intrinsically safe approvals, and are suitable for SIL 2 applications.

The IS-20 features a stainless steel welded measuring cell for enhanced media compatibility.  The IS-20-S features a standard threaded connection, the IS-21 comes with a flush diaphragm, and the IS-20-F and IS-21-F come with integral stainless steel junction box.

Key Specifications

  • Pressure ranges from 50" WC to 15000 PSI
  • Accuracy to 0.25% span BFSL
  • Suitable for SIL 2 per IEC 61508/IEC 61511
  • FM, CSA and ATEX intrinsically safe approvals
  • Rugged NEMA 6 stainless steel case, all stainless wetted parts, with all-welded measuring cell for improved media compatibility

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Range Catalog Number
IS-20-S Intrinsically Safe Transmitter
0-5 PSI
0-10 PSI
0-15 PSI
0-25 PSI
0-30 PSI
0-60 PSI
0-100 PSI
0-160 PSI
0-200 PSI
0-1000 PSI
0-5000 PSI


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