Siemens SITRANS WFS300 Gebruiksaanwijzing - Pagina 29

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7.3

Inner gasket replacement

Should it ever be necessary to replace the sensing head inner gasket, refer to the Sensing

head (Page 12) and Dimension drawings (Page 36) sections of these operating instructions

prior to performing the following procedure.

1. Remove the WFS300 fibreglass cover (4 bolts).

2. Bolt down the viscous damper cover to the shipping position (2 bolts).

3. Remove the sensing plate from the sensing head.

4. Remove the inner retaining ring (4 bolts).

5. a. Hazardous versions, remove the LVDT core and LVDT (3 bolts), or

b. Non-hazardous, remove the LVDT cable TY WRAPs (2) and disconnect LVDT connections.

6. Remove the inner gasket.

7. Install the new inner gasket and reverse the procedure (steps 1 through 6).

8. Perform the LVDT output zero procedure.

9. Referring to the integrator operating instructions, perform an integrator zero and span

calibration. Perform a span adjust if calibration accuracy appears affected.

SITRANS WFS300

Operating Instructions, 03/2021, A5E32880243-AC

Service and maintenance

7.3 Inner gasket replacement