Commissioning, Operation - WIKA 831 Manual De Instrucciones

6. Commissioning, operation

6. Commissioning, operation
Mechanical connection
GB
In accordance with the general technical regulations for pressure and
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temperature measuring instruments (e.g. EN 837-2 or EN 13190).
When screwing gauges in, the force required for this must not be applied through
the case, but rather through the spanner flats (using a suitable tool) provided for
this purpose on the square shaft of standard connections.
With safety pattern gauges (see dial symbol
fact that the free space behind the blow-out back will be at least 15 mm.
Requirements for the installation point
To avoid, amongst other things, switch signal "chatter", it must be ensured that the
instruments are mounted free of vibration.
If the measuring point is not sufficiently stable a measuring instrument support
such as a bracket or flange should be used for fastening (possibly via a flexible
capillary). If the pressure gauge is exposed to vibration or pulsating pressure
or both, then a liquid filled pressure gauge may provide considerably better
performance and readability. Instruments should be protected against coarse dirt
and wide fluctuations in ambient temperature.
Electrical connection
Connection of the switches via screw terminals in the terminal box
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Conductor cross section max. 1.5 mm
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The terminal assignment is stated on the product label of the pressure or tem-
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perature measuring instrument
The gauges must be connected to the equipotential bonding of the plant
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10
Installation with
spanner
WIKA operating instructions inductive contact model 831
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