Setting Limits - Model T - Elcometer 456 IPC User Manual

4 GETTING STARTED (continued)
Once the profile of the coated substrate has been determined, press
'Cal' and select the relevant calibration profile range.
Units: µm (ISO 19840)
Icon Calibration Prole Range
0 - 25µm, Smooth
25 - 60µm, Fine
60 - 100µm, Medium
>100µm, Coarse
When the measurement units are set to microns (Menu/Setup/
Units/µm), the gauge operates in accordance with ISO 19840. When
set to mils (Menu/Setup/Units/mils), the gauge operates in accordance
with US Navy NSI 009-32.
Note: The gauge resolution is fixed at 10µm / 1 mil (where 5µm / 0.5 mil is rounded up).
4.7 TESTING THE CALIBRATION
The user can verify the accuracy of the gauge calibration in the field
using the 'Test Calibration' option.
To test the calibration, press Cal/Test Calibration and follow the
on-screen instructions.

5 SETTING LIMITS - MODEL T

Limits are acceptable tolerance levels as defined by the user allowing
the user to compare readings to pre-defined values.
Limits can either be created for individual
readings or when a new batch is opened,
see Sections 5.1 and 5.2. Different batches
can have different limit values.
Each limit can consist of a nominal or target
NDFT value (x:), a low (
( ) limit value.
www.elcometer.com
Units: mils (US Navy NSI 009-32)
Icon
) and / or high
Calibration Prole Range
0 - 1 mils
1 - 2 mils
2 - 3 mils
3 - 4 mils
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