USTER HVI SPECTRUM, Instruction Manual, Page: 45 / 230

USTER
® HVI SPECTRUM
Instruction Manual
Uster Technologies, Inc. Chapter 4
Calibration • Page 4-1
Chapter 4 Calibration
1
Overview
The measuring modules of the
HVI SPECTRUM
system MUST be
calibrated before the initial use of the system and as calibration
standards change.
Additionally, calibration checks should be performed periodically to
ensure that the correct measurements are being collected. This chapter
explains how this is accomplished.
Calibration cottons and the standard color tiles supplied by Uster
Technologies, Inc.
MUST BE USED to calibrate and to check
calibrations. If you need to obtain calibration cotton samples, they
can be ordered from:
Standards Preparation and Distribution
Section
Cotton Division, AMS
U.S. Department of Agriculture
3275 Appling Road
Memphis, TN 38133
Since the moisture content of cottons affects its Length, Strength, and
Micronaire values, calibration cotton must be stored in a proper
laboratory environment. It is suggested that fiber samples be condi-
tioned in the laboratory environment for consistent testing results.
See
Required Laboratory Conditions in Chapter 2.
Note:
The Routine Calibrations checks that are recommended in this
Instruction Manual should be performed once a day.