Differential pressure transmitters are used in a large variety of applications and systems to monitor positive, negative or differential pressure and send a corresponding electrical signal to another device such as a panel meter, PLC, or other data acquisition device. Sensocon has differential pressure transmitters for measuring air and gas as well as liquids with our wet/wet differential pressure transmitter. All of our differential pressure transmitters come standard with a 4-20 mA output, but we also offer an optional 0-10 V output. Our differential pressure transmitters come with different accuracies from 1% to 0.25% and some come standard with a certificate of calibration while an NIST traceable certificate of calibration is available for all products. Our product family includes a low-cost, weatherproof differential pressure transmitters as well as a wet/wet differential pressure transmitter with all stainless steel wetted parts and construction.
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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The pressure transmitter DMK 456 has been developed for measuring the pressure in systems and the level in tanks and is as a consequence certificated for shipbuilding and offshore applications. Due robust stainless steel field housing and the possibility to use the device in intrinsic safe areas (temperature class T6) enable to measure the pressure of aggressive gases and fluids under extreme operating conditions. The basis for the DMK 456 is a capacitive ceramic sensor element designed by BD\SENSORS, which offers a high overload resistance and medium compatibility. Features: — nominal pressure: 0 ... 40 mbar up to 0...20 bar — accuracy: 0.25 % (opt. 0.1 %) FSO — shipping approvals: ABS, BV, CCS, DNV, GL, LR — IS-version (temperature class T6), Ex ia = intrinsically safe for gases — high overpressure capability — robust stainless steel field housing Optional Features: diaphragm AI2O3 99.9%
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The pressure transmitter illustrated here measures differences in pressure between the two connections of the measuring element. Pressure differences can be measured with respect to a reference pressure, such as atmosphere, or to the command variable of a regulation system. Equally, however, it is possible to measure pressure differences within systems that have a high static pressure. One practical example of this would be measuring a flow rate by determining the pressure drop occurring across a metering diaphragm. The differential pressure transmitter measures in both directions and can therefore, for instance, be used on double-acting hydraulic cylinders. Its construction permits it to be used with liquid or gaseous media. Venting holes simplify installation. The robust design and the use of stainless steel make it possible to use the pressure transmitter under tough operating conditions.
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Pressure gauge and thermometer are suitable for the various pressure and temperature measurement applications. We offer solutions for gas and liquid measurements. The range covers capsule, plate or Bourdon-tube pressure gauges and measuring instruments made from various materials with versions extending from standard models to stainless steel versions, for use in corrosive environments, and electronics measuring equipment.
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