RDC.OD.TP-2020.000 OM
Operation manual
Coating Thickness Gauge NOVOTEST TP-2020
Page 19
Figure 2.25 – Graphic display after measurement
The thickness gauge features only «AUTO OFF» function that is installed in the «SETTINGS»
section. If measurement was not performed, and the device was idle for a specific time (1 min., 5 min.,
10 min., 30 min.), the device will be turned off automatically.
6.
To turn the device off, press and hold «
».
2.3.10 Measurements in «CONTROL» mode
When making measurements in «Control» mode, the display will show the difference of thicknesses
with positive or negative value, by which the measured thickness of coating differs from the reference
one.
To measure the coating thickness, do the following steps:
1.
Prepare the reference block with coating.
2.
Connect the probe and turn the device on by pressing «
».
3.
Enter measurements mode, press «
», and select «CONTROL» in the appeared menu.
4.
Set the probe on the prepared object upright and press firmly. When the device makes a
measurement, put the probe away from the object and zero the probe by pressing «
».
5.
Check the accuracy of zero setting and make sure that the readings of the device do not exceed
±
2 µm.
6.
Measure the test object. If the coating thickness is identical to the coating thickness of reference
block – the device display will show 0. If the thickness of coating of the test object is less than
thickness of coating of the reference block, the display will show the difference of thicknesses
with negative value (fig. 2.26). When the coating is thickened, the display will show the
difference of thicknesses with positive meaning.
Figure 2.26 – Working in «Control» mode
2.3.11 Measurements with averaging
The automatic averaging mode means that, after each measurement, the device will include this
result in the set of averaged values.
To enter the working mode with the automatic averaging of the measurement results, set the
«AVERAGE» mode in «SETTINGS» section. Now, the necessary number of measurements can be
done, and after each measurement, the device will calculate the average value and show the readings on
the display.
To remove the current measured value, press «
», and the menu of selection of actions will be
opened (fig. 2.27), where you should choose «DELETE» parameter. The latest measurement will be
removed from the measurement series.