Operation Manual
Hardness Tester NOVOTEST T-UD3
Page. 30
Figure 2.31 - Measuring for calibration
Press
<
>
key if there is an obvious error and the last value will be removed from the
series.
5.
Move to the next nominal <
>, and complete the same procedure to the other samples
(Figure 2.32).
Figure 2.32 - Calibration for one sample
6.
To verify that the value is correct, move the cursor to X: 000 and make several measurements
on one of the samples.
7.
Press <
> (“YES”), to save, or <
> key (“NO”), to exit without saving (Figure 2.33).
Figure 2.33 – Saving
2.3.7.2 User (additional) calibration
Each of the stored calibrations can be corrected.
The user calibration of the hardness tester during the inter-service calibration period is
recommended in the following cases:
−
while checking the hardness tester with the reference hardness measure, its values are
constant, but differ from the value of the reference hardness measure;
−
after long-term storage (more than 3 months);
−
after intensive use;
−
if the operating conditions (temperature, humidity, etc.) change significantly.
Number of
measurements
Current code
value
Reference value.
Calculating the
average value of a
series of code.