wtw pH/Oxi 340i Operating Manual page 25

pH/Oxi 340i
strument uses the Nernst slope (-59,2 mV/pH at 25 °C) and determines
the asymmetry of the electrode.
6 Thoroughly rinse the electrode with deionized water.
7 If required, enter the temperature of the second buffer solution
with < > < > while keeping the <RUN/ENTER> key de-
pressed.
8 Immerse the pH electrode in the second buffer solution.
9 Press the <RUN/ENTER> key.
The AR display indicator flashes.
The electrode voltage (mV) or the buffer nominal value ap-
pears on the display. Example:
TDS UpH pH O
S
1 1 8 4
Time Baud
0 2 4
Day.Month No.
Year Ident
Tref20
Tref25 AutoCal DIN
LoBat nLF AutoCal TEC
Lin Cal
10 When the measured value is stable, AR disappears. The value
of the slope (mV/pH) appears on the display. The probe symbol
shows the evaluation of the current calibration.
pH
TDS U O
S
1 5 9 4
Time Baud
S L
Day.Month No.
Year Ident
Tref25 Tref20 AutoCal DIN
LoBat
nLF Lin Cal AutoCal TEC
11 Press the <RUN/ENTER> key. The value of the asymmetry
(mV) appears on the display.
Sal TDS
mV/pH mV
S
%
mg/l
1 4
m S/
cm
mbar M cm
1/ cm Sal
Time
8
°
C
Day.Month No.
/
% K
TP
°
F
Year
Auto
Store Tref25
ARng
AR AR RCL LoBat nLF
Sal
mV/pH
%
mg/l
m S/
cm
mbar M cm
1/ cm Sal
O
°
C
/
% K
TP
° F
Auto Store
ARng AR
RCL
Operation
UpH pH O Sal
mV/pH
%
mg/l
0 1
m S/
mbar M
1/ cm
Baud
0 2 4 8
°
C
%
°
F
Ident
Tref20 Auto
AutoCal DIN Store
ARng
AutoCal TEC AR AR
Lin Cal
cm
cm
Sal
/
K
TP
RCL
25