wtw MultiLab P5, Operation Manual

Page: 56 / 251

pH measurement
BA61101/08.00/IWa/MLP5-E2
57
Calibration with standard buffer solutions:
"AutoCalTEC"
Connect pH electrode and temperature probe.
Ãmeth.
Âmenu
ÀCal
ÁpH
25.4°C
AR TP
AR
: Drift control for the
pH measurement switched
on.
TP
and the current
temperature are only dis-
played when temperature
probe connected.
AutoCalDIN
ÂpH
ConCal
¡AutoCalTEC
Select calibration procedure
AutoCalTEC.
3 calibration procedures
are available.
For AutoCalTEC use two WTW-Technical buffer solutions , e.g.
pH = 7.00 (25 °C) and pH = 4.01 (25 °C).
The data of four WTW Technical buffer solutions are stored in the
meter: pH= 2.00, pH= 4.01, pH= 7.00 and pH= 10.00, all pH values at
25°C.
Immerse pH electrode and temperature probe into
first buffer solution.
Ãstop AR TP
AutoCalTEC pH
23.6
°C
5
mV
Start measurement. Wait
until
¡
appears before AR
(Signal sound).