User Manual

User Manual DPM-816 PRO Page 18
Two-point calibration
When to calibrate:
- Before first use;
- If the device has not been used for an extended period;
- Before each measurement for maximum accuracy.
Two-point calibration procedure:
To enter calibration mode, press and hold the
button for 2 seconds until the display shows "F-0". This
indicates the zero point calibration.
Take a measurement on a metal substrate without a coating, for
which the device will be calibrated. If necessary, repeat the
measurement. To proceed to the next point for calibration, shortly
press the button while the measurement result is being
displayed.
The display will show "F-1", the second point of calibration.
Take a measurement on the same metal substrate together with a
sample coating of known thickness, for example 700 or 1000 µm.
If necessary, repeat the measurement. While the measurement