USTER HVI 900 - Micronaire Cotton Calibration

USTER® HVI 900 Instruction Manual
Uster Technologies, Inc. Chapter 5
Version 4.0 (1.99) Calibration - Page 5-20
5.4 Micronaire Cotton Calibration
Select the
Cotton Calibration item from the MICRONAIRE MENU using the
arrow keys, then press ENTER.
On-screen instructions for testing samples of low- and high-value
calibration cottons lead you through the calibration procedure.
There should be a difference of at least 2.5 between the low and high
value of the cotton used for micronaire calibration.
• Weigh the sample of low-micronaire cotton. Make sure the balance
readout is 0 (zero) before weighing the sample. If it is not, press the
front bar of the balance to re-zero.
The sample mass should be 10 grams, ±0.03 grams, for calibration
(between 9.97 and 10.03 grams). Calibration checks and testing are
performed with samples that weigh 10.00 grams, ±1.5 grams.
• Place the weighed sample into the micronaire chamber and close the
lid.