Model IS-3

Pressure transmitter

For applications in hazardous areas

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  • Chemical, petrochemical industry
  • Oil, natural gas
  • Machine building
  • Compressors, compressor systems

Special Features

  • Ignition protection type intrinsically safe (Ex ia) with Equipment Protection Level (EPL) Ga, Da, Ma
  • Large selection of common approvals for use in hazardous areas, e.g. ATEX, IECEx, FM, CSA, EACEx or NEPSI
  • Exceptionally large variety covers almost all applications – even under extreme operating conditions
  • Excellent quality and proven technology


The model IS-3 intrinsically safe pressure transmitter has been designed for gas hazardous areas (EPL Ga) and can also be used with combustible dusts (EPL Da) and in mines susceptible to firedamp (EPL Ma). The model IS-3 is suitable for pressure ranges up to 6,000 bar [87,000 psi] and medium temperatures up to 200 °C [392 °F]. It features numerous approvals, such as ATEX, IECEx, FM and CSA. Thanks to the flush design variant, the IS-3 is also suitable for crystalline and viscous media, and also for applications where residuefree cleaning is needed.

Large selection of approvals
The model IS-3 offers many globally established approvals for use in hazardous areas – even for smaller markets. For system suppliers, approval combinations reduce the number of instrument variants that they have to keep available for their markets.

Exceptionally large variety
The model IS-3 shines with its level of customisation and diverse integration possibilities. The high-pressure version is designed for a maximum of 6,000 bar [87,000 psi]. Depending on the configuration, ingress protection of up to IP68 and use with medium temperatures of up to +200 °C [392 °F] are possible.

Excellent quality, proven in the field
The model IS-3 and its predecessors have been used reliably for over 20 years. The consistently high quality and its reliable function are regularly confirmed by both internal and external audits.

With angular connector with flush process connection

With angular connector with flush process connection

  • With angular connector with flush process connectionHigh-pressure versionWith field case
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