Hach-Lange PCII-COD LCK 014_114_314_614 - Manual (Page 27)

System start up
25
14. Press GREEN key. Enter "0.075" by using BLUE key to change value and
GREEN key to move to the next space. Press GREEN key until „S1“ is
displayed.
15. Press MENU until "Edit" is displayed to check the entered data. Press GREEN
key. „RES“ is displayed.
16. Press BLUE key to scroll through the entries. Compare the entries with the data
shown in the table below.
17. After comparing the entries press MENU two times to enter the measuring
mode. See 4.3 Evaluate LANGE COD Cuvette Tests on page 29 .
Note: In case of any mistake retrieve the factory calibration first. See 3.5.1 Retrieve the factory
calibration on page 28 . After retrieving the factory calibration, start the programming procedure
again. If the instrument is shut-off or loses power during data entry, all edits will be lost.
Automatic shut-off is 60 minutes.
3.3.2 COD (low range LCK 314/614) with
POCKET COLORIMETER II 450 nm
3.3.2.1 LCK 314 COD
1. Press POWER to switch on the instrument.
2. Press MENU. "SEL" is displayed. A flashing arrow indicates the current
measuring range (1 or 2).
3. Select measuring range 1 or 2 for LCK 314 (15-150 mg/l COD).
Note: Press GREEN key to toggle between measuring ranges.
4. Press MENU for about five seconds until "USER" followed by "CAL" is
displayed.
5. Press BLUE key until "Edit" is displayed. Press GREEN key. " RES" is
displayed.
6. Press GREEN key. "-.---" is displayed.
7. Press BLUE key until "---.-" is displayed. Press GREEN key until "S0" is
displayed.
8. Press GREEN key until "A0" is displayed.
9. Press GREEN key until "S1" is displayed.
Table 4 Calibration data of LCK 114 COD
RES ----
S0 150
A0 0.075
S1 1000
A1 0.505