RPX Technologies DynaVibe Classic, Руководство пользователя

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18
Guide to Dynamic Balancing V1.09
WWW.RPXTECH.COM
Troubleshooting
Tach Readings
•
Be sure you have a stable tach reading. A tach error will show up in the IPS
reading!
•
If RPM appears unstable check that the minimum tape width is correct.
•
Mounting the reflective tape on a polished spinner back plate can give extra
reflections. Relocate the tape or paint the back of the plate.
•
The optical pickup must be at least 6 inches from the reflective tape to get a good
signal.
•
You can test the tape/pickup alignment by wiggling your finger between the tape
and sensor. The tach reading should become live if your accelerometer is also
plugged in. Also note that when aligned, a red light will glow on the back of the
optical pickup.
•
Remove the tape from metal props when finished to avoid corrosion under the
tape. Use as little tape as possible (i.e. 1 inch strip) and mount the tape inboard
toward that hub so the balance is not affected by removing the mass.
Accelerometer Mounting
• The accelerometer mount MUST be short, and rigid. If the results after weight
additions don't make sense, your accelerometer/mount may be resonating.
•
If the accelerometer cable is pointing away from the center of the hub, then the
angle reported by the DynaVibe is the HEAVY spot (where to remove weight, or
180 degrees from where to add weight). If you flip it so the accelerometer cable is
pointing toward the hub, then the reading will indicate the light spot (where to
ADD weight).
•
If possible, align the axis of the accelerometer so it goes through the center of the
hub. If you have to shift it more than an inch, review the DynaVibe manual for
interpreting the phase angle.
•
If a long mount is needed for the tach, make two mounts and keep the
accelerometer mount short and stiff.