USTER HVI 900 - Page 83

USTER® HVI 900 Instruction Manual
Uster Technologies, Inc. Chapter 5
Version 4.0 (1.99) Calibration - Page 5-9
4.6.1 Calibration for Short Cotton
The Calibration for Short Cotton is performed first. The standard values
of the calibration cotton are displayed in the middle of the screen. The
lower section of the screen displays the procedure's instructions. It also
displays the sample counter (XX of 12 samples) and the constantly
updated instrument readings on optics and force. If the optics and force
measurements are not within a predetermined limit (±10 for optics and
+1.0, -2.0 for force), an error message will display in the lower right
corner.
Before beginning the test series (12 samples), check the standard values
of the short calibration cotton against the values listed on the box of
calibration cotton being tested. If these values are not identical to the
values on the box, locate the correct box of calibration cotton. If a new
box of calibration cotton is being tested, change the standard values to
reflect the values on the new box. Refer to the Calibration Cotton
Standard Values section in this chapter for instructions on changing
these values.
If the elongation standard value is 0.0 for Short or Long Cotton, no
elongation calibration will be performed during Cotton Calibration, nor
will elongation standard values display on the screen.