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To Set Zero Displays and Troubleshooting E01: Light absorption too great (dirty optics) 1. Press the ON/OFF key. E020 or E021: Too much light reaching detector 2. The display will show “O2”. E022 or Battery Icon: Battery should be replaced 3.
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4. Press the Mode key to proceed to the next data set. 5. Press the ! key to return to the measurement mode. 1. Vacu-vials is a registered trademark of AquaPhoenix Scientific, LLC U.S. Patent No. 3,634,038 Mar. 24, Rev. 9...
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