7
Important Notes for Measurement and Calibration
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To avoid errors from ambient light interference, DO NOT use the meter in bright sunlight. Always close the light shield lid during the measurement and
calibration.
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Glass vials and caps must be cleaned thoroughly with deionised water after each measurement. Minor residuals can cause errors.
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The outside of the vial must be clean and dry, before starting the test. Wipe the vial with a lint-free cloth to remove fingerprints or waterdrops.
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If the vial has minor scratches or scuffs, add a few drops of silicone oil to outside of the vial. Wipe with lint-free cloth.
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In order to get accurate readings, we recommend using the same vial to perform the measurement or calibration.
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Ensure that the vial is positioned in the sample chamber, the mark on the vial must be aligned with the arrow on the meter.
Light shield lid
Mark
Arrow
