Results Options; Sign Convention - Fluke 831 User Manual

On-board help

Results options

Alignment results may be displayed in three different options. To access the available options,
tap 1.
Use the results mode carousel to select the desired results option then tap
selection.
These options are available:
'Actual' – used to show just the measured alignment values without regard to any target
l
values or thermal growth values that have been entered, even if they are active
'Specification' – shows just the effect of any target specifications and/or thermal growth
l
values that may have been entered and activated, from a baseline of zero, without
regard to any measured misalignment
'Actual minus Specification' – this option considers any specified coupling targets or
l
machine thermal growth, and is the default view. It is the option that should be used
when alignment corrections are done.

Sign convention

Coupling gap is positive when open at top or side away from viewer. The viewer is considered
to stand in front of the machines as they appear on the display.
Offset is positive when the right shaft axis is higher than the left shaft axis or further away
from the viewer than the left axis.
Both vertical and horizontal results show the foot position relative to the centerline of machine
designated stationary. Positive values indicate that machine is upwards or away from viewer.
Negative values indicate that machine is downwards or towards the viewer.
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