Rockwell Automation 1441-PEN25-Z Enpac 2500 Data Collector - Manual (Page 217)

Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012 217
Balancing Application Chapter 8
3. In the Radius parameter, enter the radius of the trial weight.
To Estimate the Trial Weight
1. Press F3 (Estimate).
2. Enter the mass of the rotor using the key pad and press F2 (OK).
The Enpac 2500 calculates the trial weight (mass), the angle, and the
radius using the following formula.
To Take the Trial Weight Measurement
1. Once the trial weight information has been entered, attach the trial weight
to the rotor.
2. Start the machine and let it reach operating speed.
3. Press READ/OK to take a trial weight measurement.
The Enpac 2500 automatically measures the speed, vibration, and phase.
The values are constantly updated on the screen.
4. When the speed, vibration, and phase values are stable, press READ/OK.
The trial weight measurement is complete and the results are stored in the
Vibration Summary Table.
TIP The Enpac 2500 may ask if the transducer is attached to plane 1. If
the transducer is attached, press F4 (OK).
TIP The green status indicator illuminates when the measurement is
complete.
Refer to Status Indicators on page 25 .
Trial Weight
.1 rotor mass 9.81 900   
radius [speed  2  
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