Checkline FH Series User Manual

Page 29

6.5 Calibration Error Sources

The following situations may lead to erratic calibration:

Error: Remedy:

Wrong target ball:

Select an appropriate target ball suitable for

your measuring sample and the thickness to be

expected.

Adjust to the correct target ball size via the

menu.

Calibration range does not match to the

thickness to be expected:

Calibrate within the thickness range to be

expected.

During calibration, the precision standard has

not been placed correctly on the sensor Tipp.

Make sure to fully engage the precision

standard on the sensor tip.

Calibration error due to changes in temperature Before calibration, the sensor must be adapted

to the ambient temperature. Please wait 30

minutes after switch on before starting

measurement.

Worn or damaged precision standards:

Please use new precision standards in

impeccable condition.

Build-up on the sensor tip.

Clean sensor tip from metal parts, dirt particles

etc. by using a soft cloth.