6
TC-BA-e-2020
d) In case of possible inaccuracies in the measurement result, it is recommended to
adjust the measuring instrument before measurement, as described in chapter 6.
e) On the one hand, the device can be switched off with the on/off button 4-6.
Otherwise, it switches itself off 80 seconds after the last key is pressed.
f) The measuring unit can be displayed in µm or mil. The changeover is made as
follows:
- By pressing the changeover key 4-7
or
- the on/off key 4-6 is pressed and held until 'UNIT' is shown on the display and then
the zero key 4-3 is pressed. The measuring unit changes over to the other one when
the on/off key is released again.
This process takes a total of 7 seconds (from pressing the zero or on/off button).
g) To change to the measuring mode from 'simple' to 'continuous' or vice versa, the
zero or on/off key 4-6 must be pressed and held down until 'SC' appears in the display.
Then the zero key 4-3 is pressed. The symbol
((-))
stands for the continuous measuring
mode and 'S' for the simple measuring mode. This process takes 9 seconds (from
pressing the on/off button).
6.
Zero adjustment
a) The zero adjustment for 'Fe' (=F) and 'NFe' (=N) should be done separately. The
iron zero plate is taken when 'Fe' is read on the display, while the aluminium zero plate
is taken when 'NFe' is read.
The measuring probe 4-1 is now carefully placed on the zero plate. The zero/on/off key
4-6 is pressed and '0' is shown in the display without lifting the probe.
Attention: The zero adjustment is useless if the measuring probe is not directly
on the zero plate or another, uncoated carrier material.
b) A suitable adjustment foil, which corresponds approximately to the measuring range,
must be selected.
(c) This standard alignment foil is positioned on the supplied zero plate or on the
appropriate uncoated substrate for the forthcoming tests.
d) Carefully press the measuring probe 4-1 in the middle of the standard foil and then
lift it off again. The reading on the display corresponds to the measured value of the
layer thickness.
This reading can be corrected by pressing the plus key 4-4 or the minus key 4-5. This
should be done if the probe is not in the nearer vicinity of the zero plate or the
corresponding carrier material.
e) The procedure described in d) should be repeated until the result is correct.
7.
Battery replacement
