Ada ZCT AUTO, Operating Manual, Page: 8 / 40

MEASUREMENT FOUNDATION
ZCT AUTO
Two point calibration: irst perform zero calibration stated as above. When LCD displays 0000, place 1002um±1% refer-
ence ilm on zero reference metal substrate, locate the probe and then press the trigger. The tester inishes its calibration if
Ferr or Non-Ferr shows on LCD and returns to normal status.
2) Measuring mode (single measuring < = > continuously measuring):
Single measuring mode: make the measuring head contact the test piece vertically which is about to be tested. Each time
when you press the trigger, the display screen will show a measured value.
Continuously measuring mode: make the measuring head contact the test piece vertically which is about to be tested and
press the trigger without release, then the display screen will show measured results continuously.
Measure the thickness of coating: after the instrument is started up, the default status is measuring state. At that time, the
displaying area for measured data value on LCD screen will show “0000” and the unit symbol “um”. Make the measuring
head contact the test piece vertically which is about to be tested. Press the trigger to measure, then the LCD screen will
record measured values. When the trigger is released, “HOLD” prompts and “Ferr” prompt will be shown simultaneously;
or “non_Ferr” prompt will be shown with record number below (“Ferr” represents magnetic basal body such as iron; or
“non_Ferr” represents non-magnetic basal body such as aluminum).
3) Conversion between meter and the British system
Press the “UNIT key” for a short time, LCD screen will display “mil” prompt, and then the LCD screen will display mea-
sured values of British system. Then press it for a short time again to return to micron measurement.