Solid flat membrane pressure sensor for suspensions, resistant to clogging, piezoresistive transmitter

The solid flat membrane pressure sensor HDP502-YPM is designed for measuring pressure in suspensions, slurries, wastewater, particle-containing fluids, and viscous media in high-pressure industrial systems. The solid flat membrane pressure sensor features a smooth, channel-free surface that directly contacts the medium, reducing the risk of clogging and material deposition, while the construction is resistant to shocks, abrasion, and pressure surges.

Key features of the solid flat membrane pressure sensor

• Solid flat membrane — an integral sensor surface without narrow pressure holes, making it suitable for particle-containing and clogging media.
• Improved stress relief device — reduces mounting stress and zero-point offset between the connector and the sensing area.
• Increased sensitivity to deformation — effective deformation concentrated in the sensing zone, resulting in more accurate and faster measurements.
• Stable long-term measurement — optimized membrane deformation ensures better linearity and repeatability.
• Resistance to thermal stress — the construction acts as a mechanical buffer against stress caused by temperature changes.
• Wide Pressure Range — configurations from 0.6 to 200 MPa for various industrial applications.

Technical specifications

• Model: HDP502-YPM
• Product type: solid flat membrane piezoresistive pressure transmitter
• Sensing technology: strain gauge
• Membrane construction: solid flat membrane with stress relief mechanism
• Pressure range: 0.6–200 MPa
• Pressure type: relative (differential) pressure
• Accuracy: ±0.5 % FS
• Output signal: 4–20 mA / 0–5 V / 0–10 V / RS485
• Supply voltage: 12–32 VDC
• Compensation temperature: from -25 °C to +70 °C
• Operating temperature: from -25 °C to +70 °C
• Storage temperature: from -40 °C to +70 °C
• Zero offset temperature drift: ±0.15 % FS
• Sensitivity temperature drift: ±0.15 % FS
• Overload capability: 150 % FS
• Mechanical vibration: 20g, 20–5000 Hz
• Shock resistance: 100g, 11 ms
• Long-term stability: ±0.5 % FS per year
• Insulation resistance: 100 MΩ / 250 VDC
• Protection class: IP65
• Typical media: suspension, sludge, wastewater, viscous liquid, particulate-containing liquid
• Typical applications: hydraulics, chemical industry, machine manufacturing, suspensions, wastewater, industrial processes

Who is it suitable for and how to use it?

The solid flat membrane pressure sensor is suitable for industrial companies working with suspensions, sludge, wastewater, or viscous liquids - in hydraulic systems, chemical plants, and machine manufacturing. The device should be mounted directly to the process connection, selecting the appropriate output signal (4–20 mA, 0–5 V, 0–10 V, or RS485) according to the existing control system. A custom range or connector can be ordered upon request.

Buyer questions

Q: What makes this sensor different from standard pressure transmitters?
Unlike standard transmitters with narrow pressure channels, this one has a solid flat membrane that comes into direct contact with the medium, reducing the risk of clogging and material buildup.

Q: What types of media is this device suitable for?
The device is designed for measuring suspensions, sludge, wastewater, viscous materials, and particulate-containing liquids, as well as for high-pressure industrial systems operating in harsh conditions.

Q: What pressure range and accuracy does the sensor support?
The sensor measures from 0.6 to 200 MPa, with an accuracy of ±0.5% FS, and a long-term stability of ±0.5% FS per year, making it suitable for demanding processes.

The solid flat membrane pressure sensor is a reliable solution for harsh industrial environments where resistance to clogging and abrasion is required. It is suitable for hydraulic, chemical, and machine manufacturing companies looking for a precise and durable measurement solution.

Sources: Pressure sensor – Wikipedia | TopSmart store