User's Manual
Operator’s Manual ZM-520PA/521PA/530PA/531PA 87
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Probe
Refer to the probe manual.
Periodic Replacement Schedule
To maintain the performance of the instrument, the following part must be periodically replaced.
Name Code No. Expected Life Span
Silicon seal (for battery case cover) 1 year
Repair Parts Availability Policy
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a board or part necessary for the faulty section is not available.