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Keller

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Keller

Keller AG is a leading Swiss manufacturer of piezoresistive pressure sensors and pressure measurement systems for industrial and scientific applications. The company, founded in 1974 in Winterthur, is known for the high accuracy and reliability of its pressure transducers for precision applications in machine building, water hydrology, and marine applications.

The Keller product range includes piezoresistive pressure transducers (Series 1-26), OEM pressure transmitters, level probes, vacuum transmitters, pressure-and-temperature transmitters with 4-20mA and digital outputs, and complete pressure measurement instruments. Sensors are available for measuring ranges from a few millibar to 1000 bar and available in stainless steel and titanium for use in seawater and corrosive media.

Verkopershulp.nl supplies Keller pressure sensors and measuring instruments for industrial and scientific applications. Our technical team advises on the correct sensor type, measuring range, and process connection for your specific pressure measurement.

History

Keller AG für Druckmeßtechnik was founded in 1974 in Winterthur, Switzerland as a manufacturer of piezoresistive pressure sensors. The company has built decades of experience in precision pressure measurement and supplies pressure sensors to customers in science and industry in more than 50 countries.

Product Categories

  • Cable
  • Cooler
  • Display & Indicator
  • Filter
  • Gauge
  • Nozzle
  • Pressure Gauge
  • Pressure Sensor
  • Pump
  • Pyrometer
  • Sensor
  • Switch
  • Transmitter

Applications

  • Groundwater level measurement hydrology
  • Ocean and seawater level measurement
  • Industrial process monitoring
  • Hydraulic system pressure monitoring
  • Medical equipment
  • Aerospace
  • Climate systems HVAC
  • Water utility management
  • Test and calibration equipment
  • Scientific research

Frequently Asked Questions

Which Keller pressure transducer model is suitable for industrial process pressure?
The Keller Series 21Y and 23SY are robust OEM pressure transmitters with 4-20mA output for industrial process applications. For more accurate applications, the Series 35X and 36XW with higher accuracy are recommended.
Are Keller sensors suitable for seawater?
Yes, Keller supplies pressure transducers in titanium and Hastelloy C276 for permanent installation in seawater and offshore applications. The titanium housing offers excellent corrosion resistance without cathodic protection.
What measuring range is available for Keller pressure transmitters?
Keller supplies pressure transmitters for ranges from 0-20 mbar (vacuum-sensitive) to 0-1000 bar. The Series 26Y is available for ranges from 0-100 mbar to 0-600 bar in a compact design.
Are Keller pressure sensors ATEX-certified?
Yes, Keller supplies a selection of pressure sensors in Ex ia version certified for ATEX zones 0, 1, and 2. Consult the ATEX series information for available models.
How long is the accuracy stability of Keller sensors?
Keller piezoresistive sensors have a typical long-term stability of <0.1% FS per year. For critical applications, recalibration every 1-2 years is recommended. Keller supplies sensors with DAkkS calibration on request.