TESTBOY TB 28 Bedienungsanleitung Seite 21

Operations
Unit:
In the "Unit" menu, you can select from various length units
(metres, feet and yards) using the "Enter" button.
Calibration:
In the "Calibration" menu, you can calibrate the displayed value
corresponding to a connected cable using the "Enter" button.
Use the "Up" and "Down" arrow keys to manually adjust the va-
lue (according to a known cable length).
Pre-sets:
You can save the set values after calibrating specific cable ty-
pes. These values can be saved as the pre-set values and re-
trieved later.
Values for three different cable types can be saved in this way.
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Testboy TB 28 21