Endress+Hauser Cerabar S PMC 731, Руководство по эксплуатации

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8.5 Changing the gasket
The gasket in contact with the medium inside the adapter of the Cerabar S PMC 731 can
be replaced. Except for the PTFE gasket (Structure D), all gaskets can thus be
interchanged as required. The different temperature limits should thus be observed for
individual materials (see Chapter 9 "Technical Data").
Changing the gasket
•
Loosen the screws on the retaining ring
of the adapter.
•
Remove the retaining ring and adapter.
•
Replace gasket.
The surfaces each side of the gasket
and the gasket itself must be free from
fibres and dirt.
•
Secure the adapter with the retaining
ring and screws
Changing the PTFE gasket
•
Loosen the screws on the retaining ring
of the adapter.
•
Remove the retaining ring and adapter.
•
Replace gasket.
The surfaces each side of the gasket
and the gasket itself must be free from
fibres and dirt.
•
Secure the adapter with the retaining
ring and screws.
•
Warm the instrument to 80…85°C and
maintain at this temperature for about 2
hours to condition the gasket.
8.6 Replacement parts
The diagram on the next page shows all replacement parts needed for Cerabar S,
together with their order numbers, which can be ordered from Hauser.
When ordering replacement parts, please note the following:
•
If parts given in the order code are to be replaced, then it must be ensured that the
order code (instrument designation) on the nameplate is still valid.
•
If the instrument designation on the nameplate has changed then a modified
nameplate must also be ordered. The information about the new instrument must
then be entered on the modified nameplate. This must then be attached to the
housing of the Cerabar S.
•
It is not possible to convert a standard instrument into an Ex instrument by replacing
its parts.
Note!
Each spare part comes with exchange instructions. For more information on service and
spare parts contact the Service Department at Hauser.
0
1234 56
7 8
9
AB
CD
E
F
4...20
mA
Te st
1
2
3
Gasket
Adapter
Mounting ring
with screws
BA187Y74
Note!
8 Maintenance and Repair Cerabar S
52 Hauser