The WIKA S-20 is a versatile industrial pressure transmitter that converts measured pressure into an electrical signal for monitoring and control systems. It supports gauge, absolute and vacuum measurement, depending on the selected configuration.

Key Features

• Wide pressure range: 0–0.4 bar to 0–1,600 bar.
• High measurement performance: Non-linearity as low as 0.125% of span.
• Flexible outputs: 4–20 mA, 0–10 V DC, 1–5 V DC and other options.
• Multiple connections: A broad selection of process connections and electrical interfaces.
• Rugged design: Suitable for demanding environments with shock, vibration and temperature variations.
• Configuration options: Different accuracy classes, extended temperature ranges and customised pin assignments.

Suitable Applications

• Hydraulic and pneumatic systems: Monitor operating pressure in machinery and equipment.
• Chemical processing: Measure pressure in compatible process media.
• Industrial automation: Supply pressure signals to PLCs and control systems.
• Research and development: Support test benches and precision measurement setups.
• Harsh industrial environments: Suitable for equipment exposed to vibration and demanding ambient conditions.

Technical Highlights & Selection Considerations

Before ordering, confirm these specifications:

• Pressure type and range: Gauge, absolute or vacuum measurement, with a range matched to the process.
• Accuracy: Select the required non-linearity specification; 0.125%, 0.25% and 0.5% options are available, depending on configuration.
• Output signal: Match 4–20 mA or the required voltage output to the control system.
• Process connection: Check thread standard, size, sealing method and pressure port.
• Electrical connection: Confirm connector type, pin assignment and cable requirements.
• Operating conditions: Verify medium temperature, ambient temperature, pressure peaks, vibration and wetted-material compatibility.

The S-20 is highly configurable, so the exact pressure range, accuracy, output and temperature limits must be verified against the selected part number.

FAQ

Q1: What pressure ranges are available?

The S-20 covers ranges from 0–0.4 bar to 0–1,600 bar, with gauge, absolute and vacuum versions depending on configuration.

Q2: What output signals does it support?

Options include 4–20 mA, 0–10 V DC, 1–5 V DC and other signals. Confirm the exact output on the product specification.

Q3: Is the S-20 suitable for hydraulic systems?

Yes. Select a pressure range and process connection that meet the system's operating pressure and pressure-spike requirements.

Q4: Can it operate in high-temperature environments?

Extended-temperature configurations are available. Check both the permissible medium temperature and ambient temperature for the selected model.

Q5: What information is needed for a quotation or replacement?

Provide the full model or part number, pressure range and type, output signal, process connection, electrical connector, accuracy requirement and operating temperature.