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KELLER PRESSURE
Switzerland
The pressure transmitters of the 25Y series with a front-flush separating diaphragm are designed for elevated requirements in industrial applications and are supplied with a G1/2" male pressure port. Thanks to its modular concept, this series is highly flexible and makes it possible to realise customer-specific requirements in very little time. The sophisticated compensation circuit makes it possible to specify a narrow total error band.
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Switzerland
The high-pressure transmitters of the 6LHPC series use the chip-in-oil technology developed by KELLER, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Inconel. The transmitters are extremely resistant to environmental influences and deliver compensated measurement results as an analog, ratiometric 0,5...4,5V output signal over a wide temperature range.
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Switzerland
The differential pressure transmitters of the PD-33X series are suitable for 'wet/wet' applications. They have a single silicon diaphragm in their interior, which is pressurised from both sides and measures the pressure difference directly. This design enables them to measure small pressure differences even at an extremely high line pressure. The transmitters use digital compensation with a mathematical model to achieve exceptional accuracy of 0,05 %FS – in the temperature range from 10 to 40 °C, this value even corresponds to the total error band.
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Switzerland
The pressure transmitters of the 7LC series use the chip-in-oil developed by KELLER, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Hastelloy. The transmitters are extremely resistant to environmental influences and deliver compensated measurement results as an analog, ratiometric 0,5...4,5V output signal over a wide temperature range.
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Switzerland
The pressure transducers of the 4L series are piezoresistive pressure sensors, isolated encapsulated in oil-filled metal housings. The flush separating membrane is laser welded without gaps. Each pressure transducer is measured via pressure and temperature and delivered with a detailed calibration sheet.
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Switzerland
The high-pressure transducers of the 6LHP series have a robust housing made of stainless steel, 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 high-pressure transducers of the 7LHPI series have a robust housing made of Inconel, 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 differential pressure transmitters of the PD-39X-Ei series measure the pressure difference indirectly using two absolute pressure sensors. The dual-sensor design with numerical differential formation also outputs the line pressure values via the digital RS485 interface and guarantees a high overload resistance. The additional analog current or voltage output is primarily used to output the differential pressure range, which is freely rangeable within the line pressure range. Intrinsically safe – suitable for use in explosive atmospheres.
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Switzerland
The capacitive pressure transmitters of the 41X-Ei series are designed for measuring relative pressure values in the mbar and µbar range. They use digital compensation with a mathematical model to achieve an accuracy of 0,1 %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. Intrinsically safe – suitable for use in explosive atmospheres.
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Switzerland
These low-cost miniature pressure transducers have been specially developed for very rapid hydrodynamic and aerodynamic in situ pressure measurements. The 2Mi sensors are available in a variety of housing designs and can simply be stuck on at the desired location. Despite its miniature design, the sensor chip is protected against external influences by a steel housing and a silicone elastomer coating. It can also be used in liquids.
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Switzerland
The pressure transmitters of the 21C series with ratiometric 0,5...4,5V output combine chip-in-oil measuring cells with conventional electrical connections and pressure connections, making them ideal for industrial use. The transmitters are extremely resistant to environmental influences and deliver accurate measurement results over a temperature range of -40 °C to 125 °C.
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Switzerland
The pressure transmitters of the 21Y series have no internal seal and a high insulation voltage of 300 VDC, and are extremely resistant to environmental influences. The sophisticated compensation circuit makes it possible to specify a narrow total error band. A wide range of pressure connections and electrical connections are available to choose from.
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Switzerland
The high-temperature pressure transmitters of the 35XHTC series can be used at media temperatures of up to 300 °C. The remote electronics are designed for temperatures of up to 120 °C. They use digital compensation with a mathematical model to achieve an accuracy of 0,5 %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 35XHTC series has a G1/2 thread as pressure connection.
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Switzerland
The differential pressure transmitters of the PD-39X series measure the pressure difference indirectly using two absolute pressure sensors. The dual-sensor design with numerical differential formation also outputs the line pressure values via the digital RS485 interface and guarantees a high overload resistance. The additional analog current or voltage output is primarily used to output the differential pressure range, which is freely rangeable within the line pressure range.
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Switzerland
The series 25 pressure transmitters with a front-flush separating diaphragm are designed for industrial applications and are supplied with a G1/2" or G3/4" male pressure port. They are based on a fully analog circuit.
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Switzerland
The DCX-22 data loggers achieve greater measurement accuracy than loggers with a smaller diameter. Thanks to their long-life battery, they can keep measuring the water level, water pressure and temperature for years (up to 10 years at a rate of one measurement per hour). The data logger can be configured using the supplied software (measurement interval, incident management, delayed measurement start etc.) and data that has been read can be displayed in a graph or chart, corrected using air pressure values, converted into fill levels or other units, and exported.
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Switzerland
The DCX-22AA data loggers compensate for changes in air pressure by means of a separate, water-tight absolute pressure sensor with a stainless steel separating diaphragm. Unlike gauge pressure systems with a capillary tube, this system is completely resistant to moisture and can therefore be immersed. Thanks to their long-life battery, they can keep measuring the water level, water pressure and temperature for years (up to 10 years at a rate of one measurement per hour). The logger can be configured using the supplied software (measurement interval, incident management, delayed measurement start etc.) and data that has been read can be displayed in a graph or chart, corrected using air pressure values, converted into fill levels or other units, and exported.
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KELLER PRESSURE
Switzerland
The pressure transmitters of the 6LHPD series for high pressure applications use the chip-in-oil technology developed by KELLER, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Inconel. The transmitters are extremely resistant to environmental influences and delivery highly accurate measurement results as a digital output signal. The I2C interface and the low supply voltages make it easy to integrate in microcontroller-based systems. The extremely low power consumption is ideal for battery-operated devices. The D line is perfect for IoT solutions.
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Switzerland
The pressure transmitters of the 4LD-Ei series use the chip-in-oil technology developed by KELLER, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Hastelloy. The transmitters are extremely resistant to environmental influences and delivery highly accurate measurement results as a digital output signal. The I2C interface and the low supply voltages make it easy to integrate in microcontroller-based systems. The extremely low power consumption is ideal for battery-operated devices. The D line is perfect for IoT solutions. Intrinsically safe – suitable for use in explosive atmospheres.
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Switzerland
The 9FLD-Ei series is a special version of the 9LD-Ei pressure transmitter. The flanged housing can be mounted using an O-ring or welded on. As with all D-line products, the chip-in-oil technology developed by KELLER is used here, uniting a pressure measuring cell, digital temperature compensation and signal processing in a compact housing made of stainless steel or Hastelloy.The I2C interface and the low supply voltages make it easy to integrate in microcontroller-based systems. The extremely low power consumption is ideal for battery-operated devices. The D line is perfect for IoT solutions. Intrinsically safe – suitable for use in explosive atmospheres.
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Switzerland
The series 23 pressure transmitters are designed for industrial applications and are based on the highly stable pressure transducers of the 10L series and a fully analog circuit. Thanks to its modular concept, this series can be flexibly adapted to customer-specific pressure connections and connector plugs.
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Switzerland
The DCX-16 data loggers have a diameter of just 16 mm and can be used in tight spaces. Thanks to their long-life battery, they can keep measuring the water level, water pressure and temperature for years (up to 10 years at a rate of one measurement per hour). The logger can be configured using the supplied software (measurement interval, incident management, delayed measurement start etc.) and data that has been read can be displayed in a graph or chart, corrected using air pressure values, converted into fill levels or other units, and exported.
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Switzerland
The DCX-25PVDF data loggers have been specially designed for use in aggressive liquids such as brackish water and sewage. The housing is made of polyvinylidene fluoride and the installed pressure transducer is available in Hastelloy C-276 or titanium 6AL-4V. Thanks to their long-life battery, they can keep measuring the water level, water pressure and temperature for years (up to 10 years at a rate of one measurement per hour). The logger can be configured using the supplied software (measurement interval, incident management, delayed measurement start etc.) and data that has been read can be displayed in a graph or chart, corrected using air pressure values, converted into fill levels or other units, and exported.
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Switzerland
The series 21DC RFID combines the digital and extremely robust D-line pressure transmitters and data logger electronics with an RFID interface. The built-in battery has a lifespan of 5 to 10 years. The pressure and temperature values are each saved as a pair of numbers in the memory. Instantaneous values and saved data can still be read if the battery is flat, because power is supplied by the reader.
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Switzerland
The HPX high-pressure calibrator is a high-precision calibration instrument for pressures between 0 bar and 700 bar. The functional calibrator is supplied in a sturdy carrying case and pressure can be quickly generated manually. It is therefore ideal for use in the field. The pressure is measured by the integrated LEX1 manometer and is both shown on the display and output via the RS485 interface. Additional functions such as zero point resetting, peak and trough pressure value indication and leak measurement make it even easier to take measurements.
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Switzerland
The MPX pressure calibrator is a high-precision calibration instrument for pressures between -0,85 bar and 25 bar (after taring to ambient pressure). The functional calibrator is supplied in a sturdy carrying case and pressure can be quickly generated manually. It is therefore ideal for use in the field. The pressure is measured by the integrated LEX1 manometer and is both shown on the display and output via the RS485 interface. Additional functions such as zero point resetting, peak and trough pressure value indication and leak measurement make it even easier to take measurements.
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Switzerland
The LPX low-pressure calibrator is a high-precision calibration instrument for pressures between -0,85 bar and 10 bar (after taring to ambient pressure). The functional calibrator is supplied in a sturdy carrying case and pressure can be quickly generated manually. It is therefore ideal for use in the field. The pressure is measured by the integrated LEX1 manometer and output both on the display and via the RS485 interface. Additional functions such as zero point resetting, peak and trough pressure value indication and leak measurement make it even easier to take measurements.
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Switzerland
The compact pressure transponders consist of a digital, extremely robust D-line pressure transmitter and a passive RFID module. They obtain their power from the reader and therefore do not require a power connection or battery replacement. The 21D RFID transponders are therefore perfect for convenient on-side reading of instantaneous values, e.g. during inspection tours or safety checks on large vehicles.
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Switzerland
The remote data transmission unit ARC1-Box-SB with logger function is equipped with safety barriers and, in combination with intrinsically safe transmitters, it is suitable for use in hazardous applications. The unit is encased in a robust, water-tight aluminium housing. It records measurements made by external sensors (e.g. a level sensor) and periodically transmits the collected data via 2G, 3G, 4G or LoRaWAN. The high-performance battery and sophisticated power management enable autonomous operation for up to 10 years. KELLER provides a range of licence-free software solutions for configuration and data processing. The easiest and most convenient way to access the collected data is via KOLIBRI Cloud.
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