8/19/03
910-198E
Model 8500
Page 3-5
3.2
QCAL
The Magna-Mike 8500 incorporates an automatic “quick calibration” or
QCAL feature. Following a Ball Calibration or Multi-Point Calibration,
Auto QCAL monitors the probe for inactivity when a target ball is
removed from the probe tip. When a ball is removed from the probe for
a set amount of time (i.e. five (5) seconds, five (5) minutes, or 15
minutes) the unit compensates for drifts caused by moderate changes in
temperature or ambient magnetic fields. Auto QCAL works best when
the probe is stationary and positioned upright in the stand.
The default time interval between Auto QCAL activity is five (5)
minutes. This time interval may be changed by following the steps
below:
1.
Press [SETUP].
2.
Use the [ ] and [ ] keys to select Calibration and press
[ENTER].
3.
Use the [ ] and [ ] keys to select QCAL Interval.
4.
Use the [
] or [
] key to select 5 sec., 5 min., or 15 min.
Note:
To ensure that AUTO QCAL operates properly, begin each
new measurement session or day by performing a Ball
Calibration.
If the probe is moved between measurements, or is exposed to wide
variations in temperature, the user will need to supplement the AUTO
QCAL feature by periodically performing a manual QCAL (at least
once every half hour).
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