Chapter 6 – Maintenance
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13841 Rev A
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1. Using Calibrator Model 11, 11B, or 11/11PS install two
velocimeters, one on each side of the Calibrator using
the 1/4 - 28 threaded holes provided.
NOTE: In order for the calibrator to displace the
velocimeters accurately, BOTH velocimeters must be
installed, or alternately, a mass equal in weight to the
velocimeter must be placed opposite the velocimeter being
tested.
2. Connect the Velocimeter to the Balancer channels 1 and
2.
3. Insert a magnetic pickup in the 5/8 - 18 threaded hole
until the tip of the magnetic pickup just touches the
“interrupter” screws, then back off one flat and tighten
the jam nut.
4. Connect the magnetic pickup to channel A of the
Balancer.
5. Remove all screws from the calibrator strobe disc
EXCEPT the two screws used for the single interruptor.
See the picture below:
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