Cleaning the 500

Your instrument requires very little maintenance to achieve years of reliable operation. However, to protect your investment and maintain reading accuracy, a few simple-cleaning procedures should be performed from time to time.General Cleaning

The exterior of the instrument may be wiped clean with a cloth dampened in water or mild cleaner whenever required.NOTE: DO NOT use any solvents to clean the instrument, this causes damage to the cover.

Cleaning the Optics

The optics should be cleaned once a week in normal environments and more often in dirty or dusty environments.Carefully lift instrument and blow short bursts of clean, dry air into the measurement aperture. This should remove any accumulated dust in the optics area. WARNING: DO NOT invert cans that use Freon as a propellant, doing so could cause damage to the optics assembly.

Cleaning the White Calibration Reference

Carefully clean the reference and white ceramic disk with a dry, lint-free cloth. Do not use solvents or cleaners of any kind. Make sure to store the calibration reference in a dry, dust free area, away from direct exposure to light.

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