User guide

94
Adjustment and commissioning
Detailed procedure for the calibration of the oxidation reduction potential sensor (1-point only)
The 1-point calibration procedure is used for a quick calibration by adjusting the zero of the measurement graph
with a buffer solution with a known oxidation reduction potential.
→ Immerse the clean probe in the redox solution:
the multiCELL displays the measured potential
difference of the solution
→ Enter the potential difference of the redox
solution (indicated on the bottle).
Calibration ORP calibrationMx:pH/ORP 1st point
OK
F4
1st point
465.0 mV
475.0 mV
ORP Calibr. result
Offset:-55.60 mV
The multiCELL displays the calibration result.
1)
1)
• a possible "warning" message indicates either an error in the solution or the ageing of the probe.
• a possible "error" message indicates that the probe must be replaced.
8.11.9. Calibrating a conductivity sensor
Refer to chap. 8.9 to access Calibration menu.
Calibration
Automatic calib
Calib. interval
Mx:conductivity
Manual calibration
ENTERING
RESULT
Cell const. ENTERING
Last
RESULT
Interval
READING
ENTERING
TDS Factor ENTERING
Calib. log
READING
→ Use one of the following 3 methods to calibrate a conductivity sensor:
• AUTOMATIC CALIBRATION: Calibrate the conductivity sensor by automatically determining its specific C
constant; choose the reference solution used in the menu "Parameters -> Mx:conductivity -> Buffer". When a
sensor is calibrated automatically, the most recent calibration date is updated (function "LAST" in the sub-menu
"CALIBRATION INTERVAL" below).
Type 8619
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