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Hall 4, Booth 4652

Further informations

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PEWATRON is offering a new range of pressure sensors.

The PHPSD series are piezoresistive pressure sensors with a measuring range of 0...10mbar up to 7 bar. These sensors are available with or without temperature compensation and amplifi er, as well as with a choice of either digital or analogue output signal in each case.

Accuracies of <1 % can be guaranteed depending on the particular version. We can offer customised variants to handle the various measuring tasks required by specificfields of use.

Datasheet
Pressure Sensors

PEWATRON’s DC-DC LVDT Series 240 of precision linear displacement transducers from Trans-Tek is widened with a specially designed model for high-pressure applications.

When exposed to a non-conductive and non-corrosive fluid or gas up to 350bar (5000psi), a vented housing allows for equal pressure in and around the LVDT. As with the standard Series 240 line, working ranges from +/-1.3mm to +/-100mm are available and integral signal conditioning provides direct DC-in/DC-out operation in a single package. Simple power requirements include a single-ended 6 to 30VDC regulated. Non-linearity is specified as +/-0.5% max. full scale (+/-0.25% available). The stable VDC output is often fed straight to a PLC, A/D board, or digital voltmeter. Each unit is shipped with its own detailed calibration report.

Applications are wide ranging: hydraulic control, down-hole inspection, chamber testing, and much more.

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For many years, numerous research institutes and industrial establishments have been carrying out an intensive process of development of fuel cell systems. These initiatives have for some time been refined by activities in the area of battery systems and electrical mobility. Both research fields make similarly high demands in terms of measurement engineering. The aim is to achieve the high operating voltages required by creating series circuits consisting of up to several hundred fuel cells or battery cells in large stacks.

Depending on the application, these voltages range up to 1,000 V, which makes particularly demands on the insulation capacity of the measuring devices. It is essential to monitor all individual cells for low voltage, especially during the fuel cell development stage. Low voltage is an indication of material fatigue or insufficient supply of hydrogen and/or oxygen. In the event of a defect, this could cause the cell to short circuit as a result. In the maritime sector, for example, where the fuel cell is operated with pure oxygen, this represents a serious risk of explosion. Monitoring the voltage of individual cells enables proactive control intervention to prevent damage to people and machinery.

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