Elcometer 456 IPC User Manual page 9

6 TAKING A READING (continued)
6.3 TAKING A READING
1 Whilst holding the gauge perpendicular, gently pl ace the probe
onto the surface.
Do not drag the probe across the surface or bang the probe down hard onto

the surface as this will damage the probe tip resulting in inaccurate readings.
'>1500µm' ('>60mils') indicates a reading over the probe range.

2 For subsequent readings, lift the probe off and then replace it
onto the coated surface.
Do not allow the probe to hover over the surface as this could result in a false

reading.
When using 'Mean (xbar) Reading Mode', the first reading taken is
displayed next to '1', the second next to '2' etc. When the third reading
has been taken, the average (mean, xbar) of the three individual
readings displayed is shown (
The average (mean, xbar) reading is cleared when a fourth reading is
taken.
Note: When in Batching (Model T only), only the average of each set of three readings
is saved in the batch memory and used to calculate batch statistics.
6.4 DELETING THE LAST READING
To delete the last reading, press Menu/Delete Last Reading.
When using 'Mean (xbar) Reading Mode', repeat this process to delete
the previous reading. Only readings in the current group of three can
be deleted.
If three readings have been taken and the average (mean, xbar)
reading is displayed, deleting readings will clear the average (mean,
xbar) value.
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