Hach-Lange DR2800 eco - Manual (Page 16)

16
Start Up
If the instrument detects any deviation relative to the last
calibration, a system check has to be carried out.
1. Remove the cuvette from the cell compartment and close the
lid.
2. Then press Start.
The system check is carried out (duration approx. 6 minutes).
Note: Further error messages during self check, see Section 8 on page 55 .