Safety; Operating Principle - WIKA intelliGAUGE PGT01 Manual De Instrucciones

1. Safety / 2. Operating principle

1. Safety

GB
Serious injuries and/or damage may occur should the appropriate
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regulations not be observed.
Only appropriately qualified personnel should work on these
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instruments.
The effective maximum surface temperature is not dependant upon
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the device, but mainly on the temperature of the respective pressu-
re medium! In the case of gaseous substances, the temperature
may increase due to compression warming. In these cases it may
be necessary to throttle the rate of change of pressure or reduce
the permissible temperature of the pressure medium.

2. Operating principle

Bourdon tubes are widely used as measuring elements for technical
pressure measurement due to their robustness and ease-of-use. Under
the influence of pressure these measuring elements will deform within their
elastic range.
This movement is converted into a rotary motion by means of a mechanical
movement (gear). A magnet, fixed to the pointer axle, turns with the
instrument´s pointer in direct proportion to the process pressure. The
electronics positioned facing the magnet detect the rotational motion of the
magnet.
The electronics' non-contact sensor element (Hall sensor), affected by the
magnetic field, detects any changes, free from any friction and wear to the
measuring element.
The sensor signal, which is in direct proportion to the angle of motion, is
transformed into an output signal. The span of the electrical output signal
corresponds to the measuring span of the dial.
An intelliGAUGE line pressure gauge with electrical output signal combines
all the advantages of an on-site display without the need for an external
power supply, with the demands of modern electronic measurement for
electrical signal transmission.
WIKA operating instructions intelliGAUGE / switchGAUGE
4
The appropriate national safety regulations (e.g. EN 837-2
„Selection and installation recommendations for pressure
gauges") must be ob-served when installing, commissio-
ning and operating these devices.