The PSD-4 electronic pressure switch is the universal solution for industrial automation tasks – also in hygienic applications and under harsh conditions. Due to an accuracy of < ±0.5 % and minimal long-term drift, it permanently ensures an accurate representation of the process pressure for more than 100 million load cycles. The pressure switch is available with a digital output signal as well as a switchable and scalable analogue output. In addition, it can also be easily monitored via the self-diagnostics.

Advanced condition monitoring via IO-Link
Condition data and the diagnostic functions allow consistent monitoring. Whether it is defective or whether the pressure or temperature values are above or below the specifications is displayed directly in the system. The data also allow conclusions to be drawn about changing process conditions. Additional information helps to check the loading.

Higher flexibility, lower inventory
Low stocking costs due to fewer variants: With the scalable analogue output, the measuring range can be restricted in aratio of 5:1. In addition, the output signal can be configuredspecifically for the application. Thus the PSD-4 can be used flexibly.

Easy integration combined with good readability
Thanks to the large 14-segment display and red digits, pressure values are easy to read, even in bright environments. In addition, the display`s content can be turned through 180° and the case through > 300°.

Fast parameterisation via 3-buttons
The PSD-4 can be set via 3-button operation. Display and menu offer intuitive navigation in accordance with VDMA specification 24574-1. This speeds up parameterisation and reduces the installation effort.

The pressure switches have been developed especially for safety-critical applications with limited space.
The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.

The robust switch enclosure from aluminium alloy or stainless steel 316L can withstand the rough and corrosive operating conditions of the process industry with working ranges of up to 1,000 bar. The access to the terminal block for the electrical connection is protected by a screw-on lid, which is secured with a screw-type lock against unauthorised intervention.

A microswitch integrated in the instrument enables the direct switching of an electrical load of up to AC 250 V, 15 A.

Depending on the application, the appropriate variant for the contact version and the electrical connection can be selected; e.g., hermetically sealed microswitches are suitable for corrosive ambient conditions and DPDT contact versions for two separate circuits.

By using a diaphragm element with antagonist spring as sensor element, the model PCA pressure switch is extremely robust and guarantees optimal operating characteristics.

For safety applications, the pressure switch is optionally available in a SIL 2-qualified or a SIL 3-qualified version.

These high-qualitydiaphragm pressure switcheshave been developed especially for safety-critical applications. The great advantage of diaphragm pressure switches is that no supply voltage is required for the switching process.

In production, thediaphragm pressure switchesare traced by quality assurance software at every step and subsequently are 100 % tested. The robust switch enclosure from stainless steel 316L can withstand the rough and corrosive operating conditions of the process industry with working ranges of up to 600 bar.
Thediaphragm pressure switchis fitted with 1 or 2 microswitches, which make it possible to switch an electrical load of up to AC 250 V, 20 A directly.

For lower switching power ratings, such as for PLC applications, argon gas-filled microswitches with gold-plated contacts are available.

Depending on the application, the appropriate variant for the contact version and the electrical connection can be selected; e.g. adjustable dead band instead of fixed dead band is often a feature necessary for control processes.

By using a diaphragm measuring system, the model MW pressure switch is extremely robust and guarantees optimal operating characteristics. Flanged process connections are excellently suited for measuring highly viscous, contaminated or crystallising media.

For applications with special requirements on the wetted parts, versions with materials from PTFE, Monel or Hastelloy are available.

For safety applications, thediaphragm pressure switchis optionally available in a SIL 2-qualified or a SIL 3-qualified version.

The PSM-520 is used in industrial control, monitoring and alarm applications.
The switch point can be specified by the customer on site.

The instrument can switch electrical loads of up to AC 230 V, 50/60 Hz, 10 A.

The PSM-520 pressure switch offers many application pos

These high-quality mechanical pressure switches have been developed especially for safety-critical applications. The great advantage of mechanical pressure switches is that no supply voltage is required for the switching process.

In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested. The robust switch enclosure from aluminium alloy can withstand the rough and corrosive operating conditions of the process industry with working ranges of up to 600 bar.
The pressure switch is fitted with 1 or 2 microswitches, which make it possible to switch an electrical load of up to AC 250 V, 20 A directly.

For lower switching power ratings, such as for PLC applications, argon gas-filled microswitches with gold-plated contacts are available.

Depending on the application, the appropriate variant for the contact version and the electrical connection can be selected; e.g. adjustable dead band instead of fixed dead band is often a feature necessary for control processes.

By using a diaphragm measuring system, the model MA pressure switch is extremely robust and guarantees optimal operating characteristics. Flanged process connections are excellently suited for measuring highly viscous, contaminated or crystallising media.

For applications with special requirements on the wetted parts, versions with materials from PTFE, Monel or Hastelloy are available.

For safety applications, the pressure switch is optionally available in a SIL 2-qualified or a SIL 3-qualified version.

The model A2G-40 differential pressure switch, in the Δp function, monitors filters and ventilators in ventilation ducts and air shutters.

Five pressure range increments are available. The differential pressure switch is characterised by its simple mounting and high reliability.