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17
Fig. 16
c) Graph options.
d) Coast down display.
Saved records can be displayed using Saved data (fig. 16a). After this selection, two
columns are added to the saved items (ranged by sensing time – from the newest). The
first column is for data sensed during run up and the second column during machine coast
down. Tapping on the required box shows channel options and graph type options. Graph
control is analogical to the previous cases, see fig. 16c. It is possible to add new records
into the graph and to compare them among each other.
7.4
Balancing
For correct and secure instrument balancing, minimally the following instructions must
be followed:
a)
Place on the machine only weights specified by the manufacturer, into spots that
are explicitly designated for this purpose – balancing axis (cutting, thread holes,
places for welding and other)
b)
During the weight placement selection, safety and health of the operating
personnel must be taken into account, against weight detachment due to
centrifugal force.
c)
A larger weight, than the one already placed on the machine, should not be used.
Rather choose a larger number of lighter weights, and repeat the measurement.
d)
Personnel without appropriate practice should not conduct these measurements!
7.4.1
Balancing in single plane
Main menu
Measuring
Balancing
Single plane
This option is used for balancing thin rotating wheels on short shafts of rotating
machines. For correct function, the speed sensor must be connected. Further, it is
necessary to label the zero degree on the circular (angular) scale of the rotating wheel
with a reflective band. From this reference position (0°), the following runs are calculated.
After executing the process, screen with selection of previously saved machine coefficient
appears. You can choose the coefficients from database (balancing without the test run)
or do the measuring without choosing the coefficient from database (balancing with the
test run). After initiation the wizard is displayed, it asks to enter the machine rotation
direction and then to enter the position of the accelerometer towards the speed sensor.
The position is then noted in the balancing results.
The wizard in this case is informative and used for better orientation. The balancing
result using the test weight does not depend on the wizard setup. It is possible to skip the
wizard using Skip wizard and further the balancing continues as follows:
First run: Tapping on the forward arrow button, vibration analysis of rotating
wheel is initiated. For the analysis to be performed, the flywheel must be steady-state
