Note
Compare the reading with runout subtracted to the balance specification, not the uncompensated
reading. The reading with runout subtracted helps determine the balance condition.
Acquire runout data
CAUTION!
Follow proper safety and equipment lock out procedures when working around rotating
equipment. Acquire data from the specified location for the highlighted measurement point. If
you assign data from other measurement points to this location, you invalidate all calculations.
Prerequisites
• Complete or review the Job Setup option, and enable the runout option in Sensor
Setup. See Section 10.4.7.
• Attach one or more displacement sensors to the analyzer.
• If you use more than one sensor and do not use the CSI 2140 Four-Channel Input
Adapter, ensure you connected the proper cables before collecting data. Collect the
measurement for the appropriate input.
• Ensure the machine is in a slow roll.
Procedure
1.
From the Balance main menu, press F4 Acquire Data > F1 Acquire Runout Data.
2. If you set up multiple points, use the up and down arrow keys to select the
measurement point.
3. Press Start Data Acq. to collect data for the selected measurement point.
Review the Data Stability graph to determine when to accept the data.
4. Press Accept Data.
The list of measurement points appears.
5. Repeat the steps above for each measurement point.
6. Press Next Step to complete the runout and return to the Acquire Data screen.
10.7.3 Reference run
Before you place any trial weights, acquire the reference or as-is data to capture the initial
level of imbalance. Reference run sets the baseline data for the equipment without any
correction weights. The analyzer uses the reference run and trial run data to calculate the
influence coefficient and balance correction.
The Balance program guides you through each step. The analyzer highlights the first
measurement point. The balance program collects overall vibration measurement and
reference data at each measurement point.
Balance
MHM-97432 Rev 7 325
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