WIKA

Pressure sensor

Pressure sensors by WIKA

Definition of a pressure sensor

A pressure sensor converts the physical quantity 'pressure' into an industry-standard signal. It offers a standardised interface and frequently is also referred to as a pressure transducer Model A-10 or pressure transmitter .

All variations of pressure sensors

You can have a WIKA pressure sensor in numerous variants: Around 176 measuring ranges are available from 25 mbar to 15,000 bar in the main international units, as gauge pressure, absolute pressure and vacuum, but also as compound ranges. We have over 14 output signals in our portfolio, including a number of current and voltage signals, and RS232 and bus signals. Different connectors and various cables can be selected from the 18 electrical connections. In a selection of 34 pressure connections, you'll be able to find internationally established thread types and also flush connections. Furthermore, an infinite number of options complete our broad spectrum of pressure sensors. Among these, you will find various accuracies, pressure-spike dampening, designs for special media and special ambient conditions, and much more.

Selection of pressure sensors

You can find the appropriate pressure sensor yourself from the categories below.
We are happy to advise you in your selection and can examine individual solutions for you.

Pressure sensor for industrial applications

In the WIKA portfolio you will find a selection of pressure sensors for general industrial applications. These are available in numerous internationally established designs:

  • numerous gauge, absolute and vacuum measuring ranges
  • accuracies of up to 0.125 % BFSL
  • standard signals for current and voltage, e.g. 4 … 20 mA and 0 … 10 V
  • various plug and cable versions
  • all internationally established pressure connections


The model A-10 is the most-used pressure sensor in industrial applications. The S-20 high-quality pressure sensor has been designed for critical, high-level and harsh operating conditions. In high quantities, the O-10 offers the optimal solution.

Pressure sensor with special features

High pressure and low pressure

With highly dynamic pressures to 15,000 bar, the model HP-2 is used, while the SL-1 pressure sensor is suitable for the smallest of measuring ranges to 0 ... 25 mbar.

Highest accuracies

For the highest accuracy applications, the P-30 pressure sensor offers an accuracy of down to 0.05 % (full scale).

Digital output signals

  • CANopen®: Pressure sensor D-20-9
  • USB interface: Pressure sensor P-30
  • Switching output: Pressure switch PSD-4

High IP ingress protection

Even for the harshest of conditions, WIKA can offer the appropriate electrical connection, such as the LF-1 submersible pressure sensor for permanent immersion in liquids or the S-20 pressure sensor with field case.

Flush process connections

The S-11 pressure sensor with flush process connection has been developed specifically for the measurement of highly viscous and crystallising media.

Ex approvals

For applications in hazardous areas with ignition protection type “intrinsically safe” the IS-3 is recommended. The ignition protection type “explosion-protected” is met by the E-10.

Pressure sensor for selected markets

Markets such as mobile hydraulics or refrigeration and air-conditioning applications place special requirements on pressure measuring instruments. For these, you will also find the appropriate instrument at WIKA:

Pressure sensor for refrigeration and air-conditioning applications

Our pressure sensors for refrigeration and air-conditioning systems have exceptional resistance to most refrigerants. For the highest requirements, the model R-1 pressure sensor is recommended. For its stainless steel design with a monolithic construction removes the need for using seals on the process side.

Pressure sensor for mobile hydraulics

Durable and robust are the hallmarks of pressure sensors for mobile hydraulics. Shock and vibration resistance, pressure-spike resistance (CDS system) and an ingress protection of up to IP69K make the model MH-3 pressure transmitter especially qualified for the harsh operating conditions in mobile hydraulics.

Pressure sensor for medical gases

The model MG-1 pressure sensor has been developed specifically for the pressure measurement of medical gases and for oxygen applications. In line with international directives, different levels of cleanliness, different packaging and different instrument markings are available.

Pressure sensor for compressors

The high demands that are placed on the robustness of a pressure sensor, for example in filter monitoring in screw, piston and turbo compressors, are fulfilled without a problem by the model C-2. This pressure transmitter features a high vibration resistance and wetted parts that are suited to compressed air and lubricating oil.

Pressure sensor for sanitary applications

The design of pressure sensors is faced with particular challenges in sanitary applications for food processing, beverage production, biotechnological processes as well as the pharmaceutical and cosmetic industries. For the special conditions of CIP/SIP cleaning processes, such as chemical stability towards cleaning liquids and high temperatures, the model SA-11 pressure transmitter and the model PSA-31 pressure switch are particularly suitable.

FAQ
FAQ

What is the overpressure limit?

Pressures up to the overpressure limit will not cause any permanent damage to the measuring instrument, however, the error limits specified in the data sheet could be exceeded.