Ceramic Capacitive Pressure Transducer

The Ceramic Capacitive Pressure Transducer is a high-performance industrial pressure sensor designed for applications requiring high accuracy, excellent overload capability, long-term stability, and corrosion resistance.

By utilizing advanced ceramic capacitive sensing technology, the transducer delivers reliable pressure measurement for hydraulic systems, pneumatic equipment, compressors, refrigeration systems, steel manufacturing, and industrial automation.

What Is a Ceramic Capacitive Pressure Transducer?

A ceramic capacitive pressure transducer converts pressure into an electrical signal by measuring changes in capacitance.

When pressure is applied to the ceramic sensing diaphragm, the distance between the capacitor electrodes changes. This causes the capacitance value to vary proportionally with the applied pressure.

The internal electronics process this signal and generate accurate industrial outputs suitable for monitoring, control, and automation systems.

Because the sensing element contains no oil-filled metal diaphragm, ceramic capacitive technology offers excellent corrosion resistance, outstanding overload protection, and exceptional long-term stability.

Working Principle

The sensor consists of a precision ceramic diaphragm that forms one plate of a capacitor.

As pressure increases:

1. The ceramic diaphragm deflects slightly.

2. The capacitance changes proportionally.

3. Internal signal conditioning electronics convert the capacitance into a standard electrical output.

4. The pressure value is displayed locally (optional LED display) and transmitted to the control system.

This contactless measurement principle minimizes drift while maintaining high accuracy throughout the product's service life.

Key Features

High Measurement Accuracy

Selectable accuracy classes:

• ±0.1% Full Scale

• ±0.2% Full Scale

• ±0.5% Full Scale

Additional performance specifications include:

• Linearity: ±0.2% FS or ±0.5% FS

• Repeatability: ≤ ±0.01% FS

• Hysteresis: ≤ ±0.01% FS

These characteristics ensure precise pressure monitoring for demanding industrial processes.

Excellent Overload Resistance

The ceramic sensing element provides excellent resistance to pressure overload, helping protect the sensor from accidental pressure spikes while extending its operational lifespan.

Outstanding Long-Term Stability

The transducer offers:

• Long-term stability better than 0.1% FS per year

• Low measurement drift

• Reduced recalibration requirements

This makes it suitable for continuous industrial monitoring applications.

Corrosion-Resistant Ceramic Diaphragm

The ceramic measuring surface provides excellent resistance to many industrial media, including:

• Water

• Hydraulic oil

• Compressed air

• Mild chemicals

• Industrial process fluids

For viscous or particle-containing media, a flush diaphragm version is available to reduce buildup and simplify cleaning.

On-Site Calibration

Users can easily perform:

• Zero Adjustment

• Span Adjustment

using the onboard calibration interface, simplifying installation and maintenance.

Integrated LED Display

The optional LED display provides:

• Real-time pressure indication

• Easy local monitoring

• Simplified parameter adjustment

• Improved operational convenience

Technical Specifications

Typical Applications

The Ceramic Capacitive Pressure Transducer is suitable for measuring both liquid and gas pressure across a wide range of industrial applications.

Typical industries include:

• Hydraulic Systems

• Pneumatic Systems

• Steel Manufacturing

• Industrial Machinery

• Air Compressors

• Refrigeration Equipment

• HVAC Systems

• Lifting Equipment

• Conveying Systems

• Process Automation

• Factory Automation

• OEM Equipment

Advantages of Ceramic Capacitive Technology

Compared with conventional metal diaphragm pressure transmitters, ceramic capacitive pressure transducers offer several key benefits:

• Excellent overload protection

• Superior corrosion resistance

• Outstanding long-term stability

• Minimal zero drift

• High measurement accuracy

• Fast response time

• Low maintenance requirements

• Long service life

These advantages make ceramic capacitive technology an ideal choice for demanding industrial pressure measurement applications.

Product Selection

The Ceramic Capacitive Pressure Transducer is available with customizable options to meet different application requirements, including:

• Pressure Range

• Output Signal

• Process Connection

• Electrical Connection

• Display Configuration

• Flush Diaphragm Option

• Accuracy Class

For detailed model selection and configuration, please refer to the product selection table or contact our engineering team.