AMMCO 8545 Digital Drum Micrometer User Manual
No. 908545
Digital Drum Micrometer
Operating & Service Instructions
AMMCO Tools, Inc. • Hennessy Industries • 1601 J.P. Hennessy Drive, LaVergne, TN 37086-3565
(800) 688-6359 • (615) 641-7533 • (615) 641-5104 FAX
Start Up
Press the ON/OFF button (display will come on).
Set Inch/Metric Mode
Press the IN/MM button briefly to switch the readout
from inch to metric measurement mode.
Measure Drum Diameter
1. Slide the gauge closed until it touches stop.
2. Press D drum button and display reads 5.000".
3. Measurement—Slide arms outward to rest on the
edge of the drum. This will allow a level measurement to be achieved. Take the drum diameter measurement.
Measure Drum Roundness
1. Hold gauge in position to measure diameter of
drum.
2. Press R roundness button, gauge will display zero.
3. Reposition gauge 90 degrees around the diameter
of the drum.
4. The display will show plus + or minus - differences
from zero. This number is the out-of-round condition of the drum.
5. You can take as many measurements around the
drum as you like.
6. Press R roundness button a second time to exit
roundness/zero mode.
Battery Replacement
Note: When changing the battery you reset the 5.000"
preset.
1. Press the ON/OFF button to shut display off.
2. Remove the battery compartment cover by sliding
to the right.
3. Remove the battery and wait ten minutes.
4. Install a new battery.
5. Reinstall the battery compartment cover.
6. Press the ON/OFF button (display will come on).
7. Make sure the micrometer is reading IN. If not
press the MM/IN button to get it into the INCH
mode. Press and hold the D button (this is for presetting data) until SET shows on the display. When
it blinks, the data to be preset can now be input.
While holding the D button, press the plus + preset
or minus - preset. Release the D button once the
readings start to appear. Hold the + or the - button
to get the display to 5.000".
8. Press the D button to exit the SET mode.
Display Reset
If the display becomes non-responsive at any time,
remove the battery for ten minutes and follow directions 5 through 7 as shown above. This will reset the
5.000" preset.
940447 02 07/02
© COPYRIGHT 1996 HENNESSY INDUSTRIES AND AMMCO TOOLS ALL RIGHTS RESERVED PRINTED IN U.S.A.
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