Calibration Adjustment Procedure - Elcometer 456 Operating Instructions Manual

Coated standards are most often used to confirm that the
gauge meets its specifications if it is not possible to use
foils (shims).

5.3 Calibration adjustment procedure

Calibration adjustment can be carried out at any time by
pressing CAL softkey from the reading screen. To
prevent inadvertent calibration adjustment the CAL
softkey can
LOCKED).
The user is guided through the operation of the chosen
calibration procedure by means of instructions and
illustrations on the graphics screen. Audible warnings
are also provided when action is required, e.g. when the
probe must be placed down to get a reading.
If the routine is interrupted in any way the previous
settings will be restored until after the full calibration
routine has been completed or the reset has been
completed.
The screen detail depends on the calibration method
chosen, but the calibration is in two steps.
The following example is for a Smooth Calibration
adjustment.
Step 1
1. Hold probe in air and press CAL softkey (Figure 21).
Figure 21. Step 1 - on thickness standard
ESC softkey returns the gauge to the Reading
Screen from the Calibration Procedure without
making any changes.
TEST softkey allows the user to take readings to
verify the accuracy of the current calibration. These
readings do not affect statistical calculations.
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be locked (MENU/CALIBRATION