Pressure measurement technology Differential pressure transmitters (stationary / mobile) Calibration devices and services Absolute pressure transmitter

A family-owned and highly innovative supplier of customised solutions We offer both standardised products and customised solutions and services for mechatronics, electronics and software. With our own development department (electronics / construction) and a remarkable depth of production expertise, we are able to manufacture a wide range of variants for our customers. A strong quality assurance programme and lean processes have made us a highly professional partner with impressive performance in quality, costs and punctuality. Our quality management system is certified in accordance with ISO...

Lean Management at halstrup-walcher Focus on the customer and optimised internal processes A number of years ago, business theorists spoke of a "magic triangle" of quality (Q), costs (C) and punctuality (P). These three factors were considered magical because any measures for improvement could benefit no more than two of them at any time – and these gains could only be obtained at the expense of the third. With the help of lean management, halstrup-walcher has succeeded in breaking the spell of this magic triangle. Faults, disruptions and waste are eliminated systematically from all relevant...

Contents halstrup-walcher Pressure sensor technology and OEM solutions differential pressure Transmitters Display panels for process monitoring portable Digital pressure gauges Absolute pressure Transmitters Mobile calibration devices Volume flow measurement Calibration services Find suitable measurement and display devices Simply click your way to the most suitable measurement and display device. Our configurator will suggest a selection of products. After completing the configuration you can: xx view technical details xx compare products or xx directly request a quotation or consultation. www.halstrup-walcher.de/configurator...

Pressure sensors and OEM solutions

Halstrup-walcher pressure sensor technology   Pressure measurement devices made by halstrup-walcher GmbH have been designed for use with non-aggressive, gaseous media. They operate using the principle of inductive measurement. At the heart of the technology lies a Differentialtransformator membrane made from beryllium bronze. Inductive displacement transmitters measure the deflection of this membrane without touching it. The membrane is positioned between two measurement chambers and can thus record both positive and negative differential pressures. The measuring cell is not subject to wear due...

Measurement without zero point drift A stable measurement signal is critical in any application but especially so when working with small differential pressures. Any drift renders the measurements unreliable. If an instrument is being used to maintain overpressure in a cleanroom inaccurate measurements could result in microbe or dust levels, for example, rising above the permitted limits. Differenzdruck differential pressure In halstrup-walcher instruments, solenoid valves ensure regular zero-point correction. In combination with exceptionally stable sensors, they are very effective in preventing...

Conversion table Pa Pa hPa / mbar Please read the lines from left to right. Example: 1 bar = 100 kPa Understanding our accuracy specifications The degree of measurement uncertainty is a statistical value, which takes into account the "error contributions" of the measurement device itself as well as other influencing factors. These specifications also include the margin of error for the reference during adjustment in the manufacturing process. Unless otherwise indicated, the margin of error is always stated with reference to the standard measurement uncertainty expanded by the factor k=2 (coverage...

Development of customer-specific variants In this catalogue you will find a wide range of attractive series products. The development of customer-specific variants of the highest quality and supplying them over many years is one of our greatest strengths. Develop solutions Close support Delivery of series product Designed to your specifications We can adapt all the relevant parameters to your requirements: xx housing size and form xx easurement units (differential pressure, absolute m pressure, volume flow, temperature) xx accuracy specifications xx output signals (analog, digital, bus) xx supply...

Differential pressure transmitters

Measurement of differential pressure Measurement of differential pressure is useful in a broad range of applications. It is used in ventilation and air-conditioning technology but also in many areas of air handling process technology. The next pages show a number of these. You can find more information about our pressure sensor technology on p. 6. halstrup-walcher offers a wide range of products for stationary measurement of differential pressure: Product Process monitoring for cleanrooms (Pa, ° C, % rH), with stainless steel front Process monitoring panel aluminium, anodised (optional: with...

Measurement of differential pressure and regulation of pressure ... in cleanrooms In cleanrooms, it is vital to prevent contaminated air flowing in from corridors or areas with lower cleanroom classifications. This can be achieved by maintaining a continuous overpressure. The heart of this system is a high-precision differential pressure transmitter operating in the low Pascal range f or installation in a wall (panel), (e.g. PUC, see p. 14 and p. 15) or installation in a control cabinet (e.g. P 34, see p. 17) f The standard ISO 14644 requires continuous monitoring and regulation of pressure for...

Measurement of differential pressure and regulation of pressure ... in filling machines and hygienic plants Hygiene and bacteria-free environments are key requirements in both the pharmaceutical and food processing industries. They can be achieved by using appropriate materials and sophisticated cleaning processes. Product quality may be compromised if the end product comes into contact with the surrounding air, e.g. during filling or packaging. If this air has not been processed correctly, it will transport microbes and other contaminants (oil aerosols, particles etc.) directly to the product....