USTER HVI 900 - Chapter 5 HVI 900 System Calibration

USTER® HVI 900 Instruction Manual
Uster Technologies, Inc. Chapter 5
Version 4.0 (1.99) Calibration - Page 5-1
Chapter 5 HVI 900 System
Calibration
All measuring modules of the HVI 900 system must be calibrated prior
to initial startup. After initial startup, the modules should be calibrated
as calibration standards change. Calibration cottons and the standard
color tiles provided with the instrument must be used to calibrate and to
check calibrations. Because the moisture content of cottons affects its
length, strength, and micronaire values, calibration cotton must be
stored in an environment in the range of 20°C ±2°C (65°F to 72°F).
The relative humidity should be 65%, ±2%.
Calibration cotton samples can be ordered from:
Standards Preparation and Distribution Section
Cotton Division, AMS
U.S. Department of Agriculture
3275 Appling Road
Memphis, TN 38133
Note: For important information on using calibration cottons with the
HVI 900 System, refer to the Appendix section, Calibration Cotton
Standards for the 900 HVI System.