halstrup-walcher PU10 Instruction Manual

Also see for PS10: Original instruction manual

Contents

halstrup-walcher PU10 Instruction Manual Manual pdf 6 page image

PU/PI and PS10 Instruction Manual62 Instrument descriptionThe PU/PI and PS10 pressure transducers are pneumatic, electronic sensors formeasuring overpressures, vacuum pressures and differential pressures. Typicalapplications include, for instance, pressure measurements in air-conditioning andventilation ducts. At the heart of the transducer is a pressure measurement capsulewith a beryllium bronze membrane spring, which is displaced by the pressuredifference between the two chambers of the measurement capsule. Inductivedisplacement transducers measure membrane deflection without contacting themembrane. The instrument has no frictional parts or parts subject to mechanical wear.3 Start-up3.1 FeaturesAlthough the PU/PI and PS 10 pressure transducers are highly robust, they arenevertheless precision instruments and should be handled with care. Avoid mountingthe instruments in the direct vicinity of any sources of radiation or heat, such asheaters, as this could result in measurement errors. Ideally, the instrument should bemounted vertically on a wall not subject to vibration. Pressure (+) and vacuum (-)ports should be pointing down in order to prevent any condensation from entering themeasurement cell.When connecting pressure to the transducer, use the following table to ensure thatthe sign of the pressure (+ or -) is correct.Type of pressure Connect pressure to Exampleoverpressure + input port 0...1 kPavacuum - input port 0...- 500 Padifferential pressure higher pressure at + portlower pressure at - port0…125 Pa, e.g. via a differentialpressure transducer (such as ameasuring orifice)symmetrical pressure ranges + input port  200 Paasymmetrical pressurerangesinput port corresponding tothe high end of the pressurerange-300 Pa...+ 1 kPa(pressure should be connected tothe + input port)