Hach-Lange UVAS sc - Manual (Page 23)

Operation
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4.5.2 Zero point calibration
1. Open the MAIN MENU.
2. Press SENSOR SETUP and confirm.
3. Press SELECT SENSOR (if there is more than one sensor) and confirm.
4. Press CALIBRATION and confirm.
5. Select ZERO CAL and confirm.
6. Remove sensor from the tank and rinse measuring path with water. Align
measuring path horizontally and completely fill with distilled water. Confirm
FILL IN AQUA DEST PRESS ENTER TO CONTINUE.
7. Confirm WHEN STABLE PRESS ENTER DEXT: +/- X.X mE.
8. Press CALIBRATION and confirm.
9. Select OFFSET: X.X mE.
10. Confirm WHEN STABLE PRESS ENTER +/- X.X.
11. Press FINISH and confirm.
12. Press the back-button to leave the menu CALIBRATE.
13. Immerse sensor at the measuring location and confirm RETURN PROBE TO
PROCESS.
14. Confirm READY. Automatic wiping action and back to measurements.
4.5.3 1 point calibration
1. Open the MAIN MENU.
2. Press SENSOR SETUP and confirm.
3. Press SELECT SENSOR (if there is more than one sensor) and confirm.
4. Press CALIBRATION and confirm.
5. Select 1 SAMPLE CAL and confirm.
6. Remove sensor from the tank and rinse measuring path with water. Align
measuring path horizontally and completely fill with a reference sample.
Confirm FILL IN CAL STANDARD PRESS ENTER.
7. Confirm WHEN STABLE PRESS ENTER x. x.
8. Press CALIBRATION and confirm.
9. Edit in 1 SAMPLE-CAL. (+x.x) the setpoint adjustment according to the
reference sample and confirm.