KROHNE OPTIMASS with MFC 300 EN - Manual (Page 29)

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Unless specifically requested, internal surfaces are not polished and no warranty is made as to
the surface finish.
If polishing option and /or EHEDG, ASME Bio-Processing or 3A approvals was selected at time
of order, all product contact surfaces are polished 0.5 micrometer Ra (20CLa) finish or better.
5.7 Heating and insulation
There are several ways to heat the meter. In most cases heating is unnecessary as the meter
is designed so that very little heat is lost or gained through the outer cylinder.
Insulation
Where insulation is required, a variety of materials may be used to insulate the meter. Care
must be taken not to insulate the meter above the halfway mark of the electronics support post
as shown.
Electrical Heating
Electrical tape heating may be used. Care should be taken to only heat the sections where the
best effect will be achieved. Do not heat above the converter mount centre line as shown
above.
The following guidelines must be observed.
When insulating please observe guidelines as per insulation section.
Size DIM
1
100 200 mm
150 250 mm
250 250 mm
2
1
2 3
1
Max insulation depth
2
Heated Areas
3
Do NOT heat this area