Setra 31CS Intrinsically Safe CSA Pressure Transducer

Setra 31CS Features

  • Class I, Division 1, Groups C & D
  • Class I, Zone 0 Ex ia IIB T4 Ga
  • Class I, Zone 0 AEx ia IIB T4 Ga
  • No Oil Fill – Prevent Thermal Instability & Leakage
  • Wide Choice of Pressure Ranges from 75 PSI up to 32,000 PSI
  • ±0.25% FS Accuracy
  • Small Footprint – Less than 1in. Diameter
  • CE & UL Approved, RoHS Compliant
  • Reverse Wiring Protection
  • 40x FS Burst Pressure (Range Dependent)
  • All Welded Stainless Steel Construction

The 31CS series of sputtered film products are small and cost-effective, meeting the high-profile requirements for long-term performance, reliability, and stability of intrinsically safe pressure sensors in a wide range of applications, from 75 PSI to 32,000 PSI. Provides excellent precision, 31CS ± 0.25% FS accuracy,. It features a rugged, all-welded stainless steel housing with IP67 protection against moisture and moisture. A variety of output, pressure connectors, and electrical connector options are available to meet the most demanding applications. In addition, the voltage output version provides a dual channel pressure/temperature output.
For ATEX/IECEx intrinsically safe pressure transmitters, please refer to Setra’s 31IS series.

Built-in strain gage technology provides linearity and predictable output signals over a wide temperature range, enabling Setra to produce essentially stable, accurate sensor components at low cost and in large quantities. The Model 31CS/32CS is manufactured in Class 100 cleanroom using a high-precision automated process. In order to ensure high precision and long-term stability, each sensor element is temperature compensated before leaving the clean room for final assembly, with an accuracy better than 0.005% °C. Temperature compensation helps improve accuracy, simplifies conditioning of the electronics, and eliminates the need for calibration of the sensor under temperature rise conditions.

Quality assurance
Setra understands the importance of quality in OEM applications, and we have been doing everything possible to improve product quality. In the past two years, the 31CS/32CS sensor failure rate is less than 0.1%, which is hard to match competitors. For engineers, the worst thing is to stop working because of quality problems. Setra attaches great importance to this issue and works tirelessly to ensure that customers no longer worry about quality issues.

Strong and Sturdy
The Model 31CS sensor features a compact welded stainless steel design that protects the sensor against harsh conditions. The electrical connector is IP67 rated and has a rugged internal construction to ensure that the sensor can operate in high vibration environments. In addition, the sensor’s EMC protection is high enough to meet the most demanding industry standards while all components are RoHS compliant.

Stable performance
The Model 32CS is a heavy-duty pressure sensor based on long-term stability, reliability, and accuracy. The compact welded stainless steel design is designed to protect the sensor from working in harsh industrial environments. The 32CS product has over 3 times rated pressure (0-10K PSI) and 2.5 times overrated voltage (10K – 14.5KPSI), ensuring that the sensor is not damaged even in the event of a sudden pressure shock. The electrical connectors are IP67 rated and the reliable internal design also works well under high vibrations.


  • Process Industry
  • Chemical
  • HVAC/R HVAC / Refrigeration Equipment
  • Water

Data Sheet:Setra_Model_31CS_Data_Sheet
Instruction Manual:

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