USTER®
HVI 1000
Instruction Manual
Uster Technologies, Inc.
Chapter 5
(3/08) Calibration
-
Page 5-12
However, when there is a fail condition during calibration, changes are
made only to those parameters that are critical for calibration to be
brought to a pass condition. In other words, no changes are made to
those parameters that pass calibration originally.
For example:
Assume that length and uniformity pass the original
calibration, but that there is a FAIL condition for strength
(perhaps due to a change in the relative humidity).
During the next calibration procedure the slope and
offset for strength is all that would be changed and the
slopes and offsets for length and uniformity would
remain at their original values.
3.1.4.1
Short Cotton Calibration
A Supervisor password is required to enable Short Fiber Index (SFI)
Calibration. Prior to beginning the test series, double-check the
standard values of the short/weak calibration cotton shown above each
property name on the screen against the values listed on the box of
calibration cotton you are using.
If these values are not identical to the values on the box, you
MUST
find
the correct box of calibration cotton.
If you are using a new box of calibration cotton, you
MUST
change the
standard values (using the
Setup References
area) to reflect the
values on the new box.
Note:
If the size of the cotton sample beard is too large or small for
the measurement mechanisms and to take an accurate reading, an error
message is displayed. When an error message appears, simply
perform another repetition.
To enable L/S Cotton Calibration, do the following:
1.
Highlight
Strength
in the Module window of the
C
ALIBRATION
M
AIN
M
ENU
.
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