Multipoint Cal (Multiple Point Calibration) - KARL DEUTSCH LEPTOSKOP 2042 Instruction Manual

12.2.3 Multipoint Cal (Multiple point calibration)

When to use?
If the calibration modes "Default Cal", "ZeroCal" and/or "Cal on Foil" will not
result in a sufficient accuracy across the entire range of coating thickness
to be expected.
Using Multipoint Cal you will gain increased accuracy with measurements
on specimen with complicated geometry and/or a wide range of varying
coating thickness to be expected.
The calibration mode "Multipoint Cal" needs at least two calibration
references: Either the uncoated substrate (for ZeroCal) plus one foil of
known thickness or two foils of known thickness.
How to proceed after initiation of menu topic "Multipoint Cal":
At first the instrument will change to the measuring display requesting the
first calibration. This may be a zero calibration or a foil calibration. There-
fore the type of calibration is denoted "Zero / Foil1" (Pos. 4).
The nominal value for a calibration on uncoated substrate (zero cali-
bration) is 0.
After you have terminated the first calibration via the key
automatically shows a window for executing the follow-up calibration with
the aid of another foil. Here, as well, the type of calibration is denoted as
"Zero / Foil1".
When finishing the second calibration the request "Next Foil ?" can be used
to decide whether to execute a further calibration.
Strike if you want to continue with the Multipoint Cal or strike the key
if no further calibration is desired.
When proceeding with the Multipoint Cal the type of calibration (pos 4)
will change to "Foil2, Foil3 etc. Up to 9 calibration points are possible.
After confirmation by striking
operation based on the calibration executed for "Multipoint Cal".
Instruction Manual LEPTOSKOP 2042
the instrument returns to measurement
the gauge
Art. No. 7423.421
35