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On-board help
Measurement modes
These measurement modes are available in Fluke 831:
Active Clock – This is the default measurement mode used to measure horizontal stand-
l
ard coupled machines. In this mode, measurement points are taken at any 3, 4, 5 or all
8 available sectors. A minimum of three measurement points is required to determine
the alignment condition, but more measurement points over a wider rotational angle is
recommended.
Note
The default number of Active Clock measurement points is set in configuration
under the menu item 'Default settings'.
Static measurement – This is the default measurement mode used to measure vertical
l
mounted machines (four feet or flange-mounted). It is also used measure horizontal
machines with uncoupled and nonrotatable shafts.
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