Olympus Magna-Mike 8600, User Manual

Page: 87 / 186

DMTA-10026-01EN, Rev. D, January 2015
Basic and Multipoint Calibration 77
In order to make accurate measurements with the Magna-Mike 8600, the user must
perform a four-point basic or multipoint (additional points) calibration for the target
ball, disk, or wire that is being used. The points used in the calibration will be a
“BALL OFF” point, a “BALL ON” point (thickness equal to zero), a “THIN SHIM”
point, and a “THICK SHIM” point. The values for the “THIN SHIM” and “THICK
SHIM” calibration points will vary depending on the wear tip used, target ball, disk,
or wire selected. The user may also choose to add up to eight additional calibration
points in order to fine-tune the calibration curve and improve accuracy in the
thickness range where measurements will be made.
4.7.1 Selecting a Target and Wear Tip
When using the standard target balls and the standard wear tip, the Magna-Mike 8600
can normally automatically recognize the proper ball during the calibration for the
86PR-1 and 86PR-2 probes. The Magna-Mike 8600 will display the recognized target
on the calibration screen. When using the 86PR-3 probe (and sometimes with the
other two probes as well), the instrument cannot recognize the correct target ball size
and the user will have to manually choose the target ball in the TARGET SELECT
field. When using the target disk, the target wire, or the chisel wear tip, the user must
also manually select the proper target and wear tip in the MEASUREMENT SETUP
screen.
To manually select the proper target and wear tip
1. In the measurement screen, press [SET UP] , and then highlight
MEASUREMENT.
2. In the MEASUREMENT submenu, select TARGET SELECT , and then press
[ENTER] .
3. In the MEASUREMENT SETUP screen (see Figure 4-5 on page 78), proceed as
follows:

When using the 86PR-1 or 86PR-2 and one of the target balls, select Auto Ball .
OR
When using the 86PR-3 or one of the target disks or wires, select
1/16 BALL ,
1/8 BALL , 0.5 DISK , V DISK , 0.045 WIRE , or 0.026 WIRE .
Note that the targets available to select are probe dependent.
4. Highlight WEARTIP SELECT , and then choose STANDARD or CHISEL .
Note that only the STANDARD wear tip setting is available for the 86PR-3 probe.
5. Press [MEAS] to return to the measurement screen.