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The following maintenance intervals are generally recommended:
Maintenance interval*
Operations required
First inspection after a few weeks
Move the probe to the PROCESS position and observe
the outlet. If the retractable fitting is not tight, process
fluid will leak from the outlet hose.
Move the probe to the SERVICE position.
Remove the drive unit (no process interruption neces-
sary). To do so, see “Maintenance Work on the Drive
Visually inspect the O-rings to check the general suit-
ability of the material used under the present process
conditions.
After 1-2 years or 30,000 cycles
(after successful first inspection and
suitability of all materials used, this
time period may be extended.)
Check/replace the dynamically loaded O-ring on the
sensor socket, check the statically loaded O-rings
without process interruption.
Where required, examine the cavity rinsing. If deposits
or chemical attacks on the probe housing are sus-
pected (visible in the probe housing after removing
the drive unit), check the process unit.
After 10 years or
500,000 cycles
Complete maintenance at the factory with replace-
ment of pneumatic sealings, lubricants, and check of
all functions, pressure test, leak test
*) These maintenance intervals are rough recommendations. The actual intervals depend on the
application of the retractable fitting.
Because of the highly variable process conditions (pressure, temperature, chemically aggressive
media etc.), general information on necessary maintenance intervals is difficult to provide. If you
have gained proven experience from similar points of measurement with regard to the materi-
als used and their resistance under process conditions, you can adapt the maintenance intervals
accordingly. If previous experience is positive, parts of the first inspection may be omitted.
Maintenance Intervals
Ceramat® WA 160(X)
