16 WIKA operating instructions pressure switch model PSA-31
GB
14018458.01 11/2011 GB/D/F/E
5.3 Storage
Permissible conditions at the place of storage:
■
Storage temperature: -20 ... +80 °C
■
Humidity: 45 ... 75 % relative humidity (no condensation)
In order to protect the diaphragm, mount the protection cap before storing the instrument.
WARNING!
Before storing the instrument (following operation), remove any residual media. This is of
particular importance if the medium is hazardous to health, e.g. caustic, toxic, carcinogenic,
radioactive, etc.
6. Commissioning, operation
CAUTION!
Only use the pressure switch if it is in perfect condition with respect to safety.
Check the following points before commissioning:
■
Check the diaphragm for any visible damage, since this is a safety-relevant component.
■
Leaking uid is indicative of damage.
6.1 Making the mechanical connection
■
Remove the protection cap not until shortly before mounting. During installation, ensure that the
diaphragm is not damaged.
■
The sealing faces at the instrument always have to be clean.
■
Only ever screw in, or unscrew, the instrument via the spanner ats. Never use the case as a working
surface.
■
The correct torque depends on the dimensions of the pressure connection and the gasket used
(form/material).
■
When screwing in, do not cross the threads.
■
Never loosen sealed lling screws on the measuring instrument.
■
For installation, in accordance with the tting and ange standards the appropriate fastenings, such
as screws, nuts or clamp rings, must be used.
5. Transport, packaging and storage / 6. Commissioning, ...
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