Checkline FH Series User Manual

Page 18

5.2.2 Target Ball Size

According to sensor type and the shape of measuring object, a

suitable target ball must be set. This can be made in the Configuration

menu, menu item “Target ball” (also refer to section 6 “Calibration”.

Use arrow keys to move to “Target Ball” size and press OK. Use arrow

keys to adjust the requested target ball size. Press OK to confirm your

setting or press ESC to undo your setting. If you undo, you will

automatically quit target ball setting option and go back to the previous

menu level.

5.2.3 Data Logging Mode

In the data logging mode you can specify how you wish readings to be stored in memory. Several

modes are available:

manually or via footswitch (Current reading, MIN, MAX)

Automatic (Auto)

Note: For logging data into memory please always proceed as follows: Put the sensor into the

correct measuring position, press ESC. Then readings can be taken.

5.3 Preparing Measurement

Before measurement, the probe must be adapted to the ambient temperature. In case of high

variations in temperature, the target ball must be lifted from the probe tip at regular intervals (e.g.

every other minute). This is to compensate for frequency drift due to variations in temperature. It is

recommended to switch on the gauge for warming up around 2 to 3 minutes in order to ensure

maximum measuring accuracy.

5.3.1 Calibration

According to your setting of task, you may use different calibration methods. Measuring accuracy

depends on the selected calibration method. Please refer to section 6 for more details on this

issue.

There are three calibration methods available:

Factory

Zero only

Multi-point calibration (Zero + 1 to 4 Point(s)