Help guide – Hach-Lange DR 3900 User Manual User Manual
Page 145

145
Help Guide
7. Press Cancel to return to the measurement screen for the
test.
8. Press the information icon to return to the last current page
of the Help Guide and complete the test.
9. Insert the zero cell or sample cell (corresponding to the
process specification) into the cell compartment.
The reading is started automatically and the results are
displayed.
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