The WIKA PGT23 series is designed for applications requiring both on-site pressure readings and electronic signal transmission. Its Bourdon tube measures pressure mechanically, while an integrated electronic sensor converts pointer movement into a proportional 4–20 mA signal.
Key Features
- Dual functionality: Mechanical display and electronic output in one instrument.
- Two dial sizes: 100 mm and 160 mm for different readability requirements.
- Wide measuring range: 0–0.6 bar to 0–1,600 bar, depending on the version.
- Safety construction: Solid front wall and blow-out back, designed to meet the S3 safety version requirements of EN 837.
- Non-contact sensor: Reduces wear and friction in electronic signal detection.
- Plug-and-play operation: The output span corresponds automatically to the mechanical measuring range.
Suitable Applications
- Chemical and petrochemical plants: Process pressure indication and monitoring.
- Oil and gas systems: Pressure readings with remote signal transmission.
- Power generation: Local and centralized monitoring of process pressure.
- Water and wastewater treatment: Pressure monitoring in compatible process systems.
- Industrial equipment: Combining a visible pressure gauge with a control-system input.
Technical Highlights & Selection Considerations
When choosing a PGT23, confirm the following:
- Pressure range: Match the scale to normal operating pressure and possible pressure peaks.
- Dial size: Choose 100 mm or 160 mm according to viewing distance and installation space.
- Process connection: Verify thread type, size and mounting position.
- Electrical output: The standard output is 4–20 mA, two-wire; check the receiving system and power supply.
- Process compatibility: Confirm wetted materials, medium temperature and pressure conditions.
- Environmental protection: Standard protection is typically IP54, with IP65 available for liquid-filled versions and IP66 as an option. Verify the selected configuration.
FAQ
Q1: Can the gauge display pressure without electrical power?
Yes. The mechanical dial remains functional even if the power supply is lost; the electronic output requires power.
Q2: What is the difference between PGT23.100 and PGT23.160?
The main difference is the nominal dial size: 100 mm versus 160 mm. Select based on readability, mounting space and the exact configuration.
Q3: What output signal does it provide?
The standard version provides a 4–20 mA, two-wire output for compatible monitoring and control systems.
Q4: What measuring ranges are available?
Ranges extend from 0–0.6 bar to 0–1,600 bar, depending on the selected model and scale.
Q5: What information is needed to order a replacement?
Provide the complete model or part number, pressure range, dial size, process connection, mounting position and output requirements.
