5-10 Chadwick-Helmuth A Business Unit of Honeywell International, Inc.
Chapter 5 - Maintenance And Repair
g. Press STOP Key on 8500C/C+.
5.4.1.6 FasTrak
5.4.1.6.1 Test Setup (Ref. Figure 5-6)
NOTE: This test provides a high level of confidence that the FasTrak is operating properly
and is included here for completeness. The associate circuitry in the 8520 and 8500 has
already been tested.
Before doing the FasTrak test, apply the special overlay to the calibrator disk. See Figure 5-6 for
samples that can be copied or recreated.
NOTE: This test should be performed in a well-lit room.
a. Place calibrator on its back on a flat surface.
b. Place FasTrak on its side with the pin connector facing to the right. The window should be
facing the calibrator approximately six inches away.
c. Set CAM RATE (RPM) switch to 900.
d. Set MOTOR switch to ON.
e. Adjust pot next to 900 CAM RATE switch position until 2nd ring from outside on rotor
disk appears frozen in place under 60 Hz light.
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f. Press BALANCE key on 8500C/C+.
g. Press SETUP key.
h. Select PICKUP field with arrow keys.
i. Press CHANGE soft key to select PICKUP B.
j. Press STATUS key.
k. After a few seconds, the RPM on the screen should read approximately 900 RPM.
NOTE: If you cannot adjust the distance or alignment to obtain 900 RPM, there may be a
problem with the FasTrak. Return it to Chadwick-Helmuth for adjustment.
l. With a white index card or piece of paper, cover half of the rotating disk. Place the card
close to, but not touching, the disk, so as to cover 1/2 Mag Pickup sensor and one vibration
sensor.
m. The RPM should drop by approximately half, remove the card.
Night Mode Test
a. To simulate night operation, turn off all lights in room, or enclose the test setup within a
darkened enclosure, such as a large box. The RPM should drop to zero when the area is
dark enough.
b. Switch Tracker switch to Night mode. (in the cable)
c. After a few seconds, the RPM should appear on the display
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Attention, users outside U.S.: The 11A Calibrator can also be calibrated under 50Hz light. For 1714
rpm and 923 rpm cam rates, inner two rings on rotor disk are used. Remember to enter half these rates
in 8500C/C+ setup screen, when called for in the following steps.
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