Design And Function; Transport, Packaging And Storage - WIKA Phase-Out PSD-3 Series Operating Instructions Manual

4. Design and function / 5. Transport, packaging and storage

4. Design and function

4.1 Description
EN
By means of a sensor element and by supplying power, the prevailing pressure is converted into a
switching signal or an amplified standardised electrical signal via the deformation of a diaphragm. This
electrical signal varies in proportion to the pressure and can be evaluated accordingly.
PSD-30: Process connection with internal diaphragm (standard version).
PSD-31: Process connection with flush diaphragm for highly viscous or crystallising media that may clog
the bore of the process connection.
4.2 Scope of delivery
Cross-check the scope of delivery with the delivery note.
For flush design (model PSD-31) with pre-mounted sealings and protection cap.

5. Transport, packaging and storage

For the protection of the diaphragm, the flush design (model PSD-31) is delivered with a
special protection cap.
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5.1 Transport
Check the instrument for any damage that may have been caused by transport. With flush design
(model PSD-31), additionally check the diaphragm for any optical damage.
Obvious damage must be reported immediately.
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In order to avoid damage at the diaphragm and/or the process connection thread,
remove the protection cap by hand only just before installation.
Keep the protection cap for subsequent storage or transport.
Fit the protection cap before dismounting and transporting the instrument.
WIKA operating instructions pressure switch, model PSD-3x