X-Rite MA94, Руководство пользователя

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M U L T I - A N G L E S P E C T R O P H O T O M E T E R
24
CALIBRATION MODE
The instrument comes with a calibration reference and black trap. A calibration should be
performed when called for by the instrument or when desired. The calibration timeout is set in
Configuration mode.
Refer to Cleaning section in the Appendices for information on cleaning the optics area and
references.
NOTE:
Make sure to use the calibration reference supplied with the instrument for calibrating.
Do not substitute this reference with a reference from another instrument. The serial number
on the reference should match the reference (plaque) serial number displayed in the main
calibration screen.
Calibration Notes
•
Dirt or dust in the aperture area will cause an inaccurate calibration reading. Refer to the
Appendices for optics cleaning procedure.
• The white plaque in the calibration reference is dramatically affected by smudge
marks, dust, and finger prints . Refer to Appendices for calibration reference cleaning
procedures.
• The black trap should be cleaned periodically to remove any dust or
contamination . Refer to Appendices for black trap cleaning procedures.
• Do not move instrument while taking a calibration measurement . If motion is
detected, an error message will be displayed and calibration aborted.
Positioning the Instrument on the Black Trap
The black trap is used to perform the zero reflectance measurements. The instrument’s
measurement port is positioned over the opening. The black trap snaps onto the instruments
measurement port and can only be positioned in one direction. The black trap can be taken apart
for easy cleaning. Refer to the Appendices for procedure on cleaning the black trap.
Always store the black trap with the hole plug installed.
Measurement opening
Black trap
properly positioned
Hole plug