wtw pH 3210, Руководство по эксплуатации

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Operation pH 3310
44 ba75802e02 12/2008
4.4.8 Carrying out a manual calibration (ConCal)
Single-point calibration Use any buffer solution for this rapid method.
The calibration will be the more exact the nearer the pH value of the
buffer solution is to that of the test sample.
Two-point calibration Use one or two buffer solutions for this procedure:
z
first buffer solution: pH 7.0 ± 0.5
z
any other buffer solution
In the sensor menu, submenu Buffer , ConCal must be set as the buffer
set (see section 4.4.4).
Note
If single-point calibration is set in the menu, the calibration is
automatically terminated and the calibration record displayed.
1 In the measured value display, select the measured parameter
pH or mV with
<M> .
2 Start the calibration with <CAL> .
The calibration display appears.
3 Thoroughly rinse the combination electrode with distilled 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 <ENTER> .
The measured value is checked for stability (stability control).
pH 1
6.943
24.8 °C
ConCal
22.09.2008
08:00