Xylem HandyLab 100 - Manual (Page 41)

HandyLab 100 Operation
41 ba77062d01 03/2014
4.4.8 Carrying out a manual calibration (VariCal)
Make sure that in the sensor menu, Buffer menu, the
VariCal buffer set
is correctly selected (see page 30).
Use any one to five buffer solutions in ascending or descending order.
Note
If single-point calibration was set in the menu, the calibration procedure
is automatically finished with the measurement of buffer solution 1 and
the calibration record is displayed.
1 In the measured value display, select the measured parameter
pH or mV with .
2 Start the calibration with .
The calibration display appears.
3 Thoroughly rinse the electrode with deionized water.
4 Immerse the electrode in buffer solution 1.
5 When measuring without temperature sensor:
Measure the temperature of the buffer manually and enter it
with <
><>.
6 Start the measurement with .
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parame-
ter flashes.
pH
0.0
24.8 °C
VariCal
1
15.03.2014
010:00
Buffer
mV