Hach-Lange SENSION+ MM110 - Manual (Page 18)

14
5. Operation
5.6. Manual calibration
Important note: Before turning on the instrument, check that
the sensor is connected.
Manual readjustment of pH (or mV) measured at any value wi-
thin the range.
When readjusting pH, the instrument behaves as though it were
calibrated with a single buffer solution.
5.6.1. Preparation
1. Unscrew the protector containing the appropriate electrolyte.
2. Rinse the sensor with deionized water.
3. Dip the sensor into the solution in which manual calibra-
tion is to be performed.
Note: Before beginning manual calibration, you must take a
measurement in the standard to be used in the calibration
5.6.2. Calibration
Stir gently holding the sensor by the handle.
Follow the diagram.
(1) Hold down and then press .
Notes: If the measuring instrument is not used for 5 minutes,
it shuts off automatically.
If errors occur during calibration, an error message will
appear on screen (see pg. 19).
Before beginning manual calibration, you must take a measu-
rement in the standard to be used in the calibration.
Important: To exit calibration without saving the adjustment,
press
.
mV
mV
t
mV
t
mV
t
mV
t
mV
pH REDOX
(1)
(1)
sensION+ MM110 HACH_LANGE 0710.indd ANG:14 sensION+ MM110 HACH_LANGE 0710.indd ANG:14 7/9/10 15:33:08 7/9/10 15:33:08