Verifying The Gauge & Probe Performance - Elcometer 500 Guia Del Usuario

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5 TAKING A READING (continued)
4
Press 'Start' to begin the scan and slide
the probe over the coated surface
(Figure 3).
5
The display will show a value which is
constantly updating.
The stability of the reading is indicated on the
signal strength indicator to the right of the
display. If the signal strength indicator is green,
it is a valid and stable reading. If not green,
ensure there is an adequate film of couplant
beneath the probe and that the probe is seated
flat against the surface. Alternatively, position
the probe nearby on a different area of the test
surface until a strong signal is received.
'<0.15mm' or '>2.50mm' ('<6mils' or '>98mils') indicates a reading outside the
probe range when using a C1 probe or '<0.75mm' or '>10.00mm' ('<30mils' or
'>390mils') when using a C2 probe.
6
Press 'Stop' to stop taking readings and complete the scan.
If the scan is interrupted due to lack of couplant beneath the probe for example,
the scan is paused until a good signal is received or 'Stop' is pressed.
7
The scanned lowest, average and
highest reading will be displayed on
screen (Figure 4). Press 'Save' to store
the scanned readings into the gauge or
batch memory. Press 'Clear' to
disregard the last scan and start again.
8
Remove the probe from the surface.
6 VERIFYING THE GAUGE & PROBE PERFORMANCE
Probe tips wear over time which can affect the accuracy of the
readings. Any damage to the probe tip such as scratches, chips or
dents will also affect the accuracy. Although the gauge will inform the
user when the probe tip requires replacement, it is good practice to
check the performance of the gauge / probe on a regular basis.
Users can verify the gauge and probe performance in the field using
the measurement foils supplied with each probe.
To verify the gauge / probe performance:
1
Press Menu/Calibration/Cal Method/Coating Material and select
the measurement foil from the 'Generic Materials' list.
2
When prompted, apply couplant to the measurement foil and take
a reading.
en-9
R
Figure 3
Figure 4
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