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Differential Pressure Transmitter

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Differential Pressure Transmitter

Stainless Steel Pressure Rating PN 2.5/25/40 bar
Model No: 892.34.1998

Pressure ranges from 0 ... 6 mbar to 0 … 25 bar

High working pressure (static pressure) up to 40 bar

High overpressure safety up to 40 bar

Industrial standard signals 4 ... 20 mA or 0 ... 20 mA

Approval: German Lloyd, No. 99180-96HH

The principle features of these differential pressure gauges with mounted transmitter are their highly corrosion-resistant stainless steel design and their all welded sealing of the pressure chamber providing for an increased tightness in the long term (no elastomer sealing rings).

The differential pressure transmitter consists mainly of a mechanical measuring system of Model 732.51 with elastic pressure element, magnetic-field-dependent sensor (Hall sensor) with amplifier and case with the connecting parts for the electronics. A permanent magnet rigidly coupled to the pressure element influences the flow field of a sensor. The resulting differential voltage is amplified to a standard current signal.

Standard output signals of 4 ... 20 mA (2 wire system) or 0 ... 20 mA (3 wire system) can be provided from a stabilised DC supply of 10 ... 30 V.

Upon request, the transmitters may also be supplied in intrinsically safe ex-approved design with the output signal 4 ... 20 mA.

For recalibration, zero and span can be adjusted by means of easily accessible potentiometers.

The use of high-quality stainless steel material is intended for applications within the chemical industry for gaseous, liquid and aggressive media. Typical applications are, for example, the monitoring of pumps, filters and compressors.

As an optional extra, the design of the pressure transmitter can also be modified to allow for a higher max. total overpressure and higher overload values.

Electrical connection is made by means of a cable box with screwed cable gland M 20 x 1.5.

For corrosive gaseous and liquid media, provided they are not highly viscous or crystallising, and also for corrosive environments

Monitoring and control of pumps

Filter monitoring

Level measurement in closed tanks