Germany
Manufacturer/ Producer
High-quality precision pressure gauges in line with certified quality standards and available worldwide in the shortest possible time. With 90 years of experience, we can fulfil special and individual requirements for pressure gauges and thermometers. With our in-house production facility and an extensive range of assembly and test devices, you receive your products from our production site in Groß-Gerau, Germany, in accordance with quality standard ISO 9001: 2015. It goes without saying that you get a special service from Schmierer! Calibration, filling and adjustment of pressure and DP transmitters and fitting of various diaphragm seals are also possible for third-party brands. You can also benefit from our proven repair service, whereby we repair your pressure gauges and transmitters, including those from third-party brands, to save you time, money and resources. Collaborate with a supplier with a long-term approach that conserves resources thanks to EcoVadis certification (sustainability certificate)
KELLER PRESSURE
Switzerland
The high-pressure transducers of the 7LHPTi series have a robust housing made of titanium, giving them optimum long-term stability for a range of OEM applications. The metal diaphragm is welded on front-flush and gap-free, separating off the piezoresistive pressure sensor, which is made of silicon, from the measuring medium. Every pressure transducer is measured over the entire pressure and temperature profile and is supplied with a detailed calibration sheet.
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Switzerland
The pressure transmitters of the 35XHT series are suitable for use in media temperatures up to 150 °C and can therefore be used in bioreactors and autoclaves that have to be sterilised regularly. They use digital compensation with a mathematical model to achieve an accuracy of 0,15 %FS – in the temperature range from 10 to 40 °C, this value even corresponds to the total error band. In addition to the digital RS485 interface, the X-line transmitters have a rangeable, analog current or voltage output. The standard model of the 35XHT series has an Ingold fitting as pressure connection.
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Switzerland
The differential pressure transmitters of the PRD-33X series are designed for accurate measurements in low pressure ranges with very high overload on both sides. In addition to the differential pressure sensor, which may only be exposed to gases at its rear face, the devices have an additional absolute pressure sensor that measures the line pressure. Both measured values are output via the digital RS485 interface and are the ideal basis for cryogenic tank monitoring.
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Switzerland
The 22DT series has been specially developed for use in bivalent vehicles (volume flow measurement when running on natural gas) and is homologated for the automotive industry. However, it also has other industrial applications. The NTC or PT temperature sensor located directly beneath the steel diaphragm reacts more quickly to temperature changes thanks to its special design. The pressure transmitters are protected against electromagnetic fields up to 200 V/m and output the measured values as a ratiometric 0,5...4,5V analog signal. The connections of the temperature sensor are fed out directly.
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