Mahr GmbH, MarSurf M 300 and RD 18
53
9 Maintenance, Cleaning and
Transport
If the symbol is displayed in the top
status bar, the maintenance interval has
passed. Mahr after-sales service must
perform maintenance on the instru-
ment.
The following maintenance work is to be carried
out for the MarSurf M 300:
Checking the integrated standard •
at regular intervals, −
by the user (see Section 9.1),
after approx. 350 calibration proce- −
dures,
by Mahr after-sales service.
Because the integrated standard is subject
to wear during calibration, the user should
check it at regular intervals using a skidless
pick-up.
After approx. 350 calibration procedures, it
must be checked by Mahr after-sales ser-
vice and if necessary, replaced. If calibration
is performed daily, the service life is one
year.
Replacing the battery •
after approx. 2 to 3 years, −
by the user (see Section 9.2).
The MarSurf M 300 and the pick-up are bal-
anced at the factory and do not need to be ad-
justed.
We nevertheless recommend having the meas-
uring accuracy checked at regular intervals or if
there is any suspicion that the measured values
are incorrect. This is done by calibrating with the
integrated standard or with a separate rough-
ness or geometric standard (see Section 6).
8.2 Remote Control
via the MarConnect Interface
The MarSurf M 300 has a MarConnect interface
(RS232). This interface can be used to start the
instrument remotely.
The transfer parameters specified for the
MarConnect interface are as follows:
4800 baud transfer rate, even parity, 1 start bit,
7 data bits, 1 stop bit.
These transfer parameters must also be
selected in the communicated device.
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