Advanced calibration continued...
After the initial calibration sequence and before attempting a prolonged measuring session, the
following sequence is advised. The purpose is to perform a calibration only once the probe has reached
a stable temperature.
Hold the probe in your hand in the same way as you would while measuring. Important, do not envelop
the entire probe in your hand, simply hold it just as you would while measuring. Your hand will heat the
probe It may take 3-5 minutes for the probe to reach a stable temperature.
Then perform a re-calibration, by pressing the FUNCTION key and choosing the Re-Calibrate option.
You can also perform a Re-Calibration at any time should you feel the need. Take care to keep the
environmental temperature stable and avoid direct exposure to fans or heater vents.
Additional Information.
There is an additional information source provided by menu option 1 called
Ref.
It is important to
understand the significance and objective of this option before using it. The
Ref
option can be
engaged by pressing FUNCTION ^1.
Firstly, the initial calibration procedure, will compensate for differences between your shop
environment and the factory environment where MAG-ic Probe was calibrated. The problem is that
after this calibration your hand may heat the probe causing a small drift in value. This is the reason
for the 2nd calibration as described above. To assist in this 2nd calibration, the
Ref
option can be
used.
BEFORE performing the 2nd Calibration, invoke the
Ref
option. The
Ref
(reference) option shows a
value, normally a negative value, for example -53. This value represents a difference measured in
the conditions of your environment to the factory environment where MAG-ic Probe was calibrated. If
this value is negative as in the example -53, hold the probe in your fingers as described above. The
Ref
value should start to increase, and the zero (0) point is where the probe temperature conditions
are similar to the factory calibration conditions.
When the
Ref
value is approaching the 0 mark, return to the menu and perform the 2nd calibration
as described above. Please note that you do not have to be overly fussy about this setting as even a
difference count of 300 represents well under 0.1mm deviation.
Summary of Contents for V4.0
Page 8: ......