Operation HandyLab 100
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ba77062d02 12/2017
Note
For single-point calibration, the instrument uses the Nernst slope
(-59.2 mV/pH at 25 °C) and determines the zero point of the electrode.
Continuing with two-
point calibration
Continuing with three-
to five-point calibration
8 If necessary, finish the calibration procedure as a single-point
calibration with <M>.
The calibration record is displayed.
9 Thoroughly rinse the electrode with deionized water.
10 Immerse the electrode in buffer solution 2.
11 When measuring without temperature sensor:
Measure the temperature of the buffer manually and enter it
with <><>.
12 Start the measurement with <ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parame-
ter flashes.
13 Wait for the measurement with stability control to be completed
or terminate the stability control and take over the calibration
value with <ENTER>.
The calibration display for the next buffer appears (voltage dis-
play).
14 If necessary, finish the calibration procedure as a two-point cal-
ibration with <M>.
The calibration record is displayed.
pH
0.0
24.8 °C
AutoCal TEC
7.000
15.03.2014
08:00
AR
Buffer
mV
15 Thoroughly rinse the electrode with deionized water.
16 Immerse the electrode in the next buffer solution.
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