Active Clock Measurement - Fluke 831 User Manual

Active Clock measurement

In Active Clock, measurement points can be taken between a minimum of 3 to a maximum of
the 8 available sectors. The range in which the sectors become active and therefore points
may be taken is the given clock position (in degrees) + 11.25 degrees. For example, the 1:30
o'clock position will be active when the sensor and reflector are at a rotational angle between
34 - 56 degrees.
Clock position 0:00
Active Clock 349 – 11 34 –
range in
degrees
Active Clock is the default measurement mode used to measure standard horizontal coupled
machines. Measurement points are taken at any of the eight available sectors. The desired
number of measurements points is set in "Configuration" under 'Default settings'. Three meas-
urement points are necessary to determine the alignment condition.
Once the laser beam has been centered, rotate shafts to the first measurement position
Note
If coupling torsion play (backlash) is suspected, turn the shaft or coupling end where the
reflector is mounted. Ensure shafts are turned in the normal rotation direction of the
machine, and that the mating parts are engaged. Backlash may also be minimized by
taping tight the coupling.
Remember not to touch mounted components. This includes the brackets and the sup-
port posts, which are NOT to be used to rotate the shafts.
When the sensor and reflector are within the sector range, a pulsating M (1) comes into view.
Tap the pulsating M or
Shop for Fluke products online at:
1:30 3:00 4:30
79 – 124 –
56 101 146
to take the first measurement position.
MyFlukeStore
www.
6:00 7:30 9:00
169 – 214 – 256 –
191 236 281
1.888.610.7664
.com
On-board help
10:30
304 – 326