MA120 pages

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developing

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solutions

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FISCHER

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MESS- UND REGELTECHNIK

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MA12 Pressure Gauge

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Pressure gauge, especially suited for

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heavy measuring conditions, e.g. in

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case of pressure shocks, vibrations or

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high demands on breaking capacity.

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The overpressure safe measuring sy-

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stem guarantees high operation safety.

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The pressure chamber and the measu-

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ring diaphragm are available in different

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materials to meet various requirements.

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Construction and Operation

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This pressure instrument is based on a

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rugged and uncomplicated diaphragm

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movement, suitable for overpressure

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and partial vacuum pressure measure-

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ments.

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In non-operative state, forces of the

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springs on both sides of the diaphragm

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are balanced. Pressure or vacuum to be

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measured creates an unbalanced force

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of the springs until a new balance is re-

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ached. When subjected to excessive

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pressure, the diaphragm rests on metal

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supporting plates. A centre-mounted

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tappet transfers motion of the dia-

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phragm system to indicator movement

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and operating elements of micro swit-

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ches.

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Functional Scheme

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Main Features

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• vibration resistant

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• long service life

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• rugged measuring system

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• all ranges overpressure safe up to 25 bar

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Applications

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• process engineering

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• plant engineering

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• water economy

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• pneumatic conveying systems

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e

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1 Pressure chamber

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2 Motion work

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3 Tappet

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4 Measuring springs

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5 Measuring diaphragm

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