Elcometer 456 3 Operating Instructions Manual page 27

adjustment the CAL softkey can be locked
(MENU/CALIBRATION LOCKED).
The user is guided through the operation of the
chosen calibration
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.
procedure by means
Step 1
1. Hold probe in air and press CAL softkey
(Figure 24).
of
Figure 24. 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.
2. Place probe on calibration standard. The
gauge will display a reading.
3. Lift probe and then replace on calibration
standard. Gauge displays the average ( ) of
R
25