Samson 3785 series, Монтаж и эксплуатация

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5. Maintenance
The positioner is maintenance free.
Pneumatic connection 9/Supply contains a
filter with a mesh size of 100
µ
m. If re-
quired, the filter can be unscrewed and
cleaned.
Also refer to the maintenance instructions
for upstream pressure reducing
stations for supply air, if applicable.
6. Servicing ex-proof versions
In the event that a positioner’s part on
which the explosion protection is based
must be serviced, the positioner must not be
taken into operation again, unless an ex-
pert has inspected the device according to
the explosion protection requirements, has
issued a certificate stating this, or equipped
the device with his mark of conformity.
Inspection by an expert does not have to be
carried out, if the manufacturer performs a
routine check test on the device prior to tak-
ing it into operation again, and the success
of the routine check test is documented by
attaching a mark of conformity to the de-
vice.
EB 8382-1 EN
35
Maintenance