wtw pH 3300i Operating Manual page 26

Operation
26
TDS UpH pH O
S
1 7
1 7
0 2 4
Time Baud
Day.Month No.
Year
Ident
Tref20
Tref25 AutoCal DIN
LoBat nLF Lin Cal AutoCal TEC
5 When the measured value is stable, Cd2 appears.
Note
At this point, the AutoCal DIN calibration can be terminated with <M>. This
corresponds to a single-point calibration. For this, the instrument uses the
Nernst slope (-59.2 mV/pH at 25 °C) and determines the asymmetry of the
electrode.
ISE U pH
S
1 6 C d
8 2 4
Time Baud
Day.Month No.
Year Ident
AutoCal DIN Auto Store
LoBat
AutoCal TEC ConCal
6 To continue the two-point calibration, thoroughly rinse the elec-
trode with deionized water.
7 If necessary, enter the temperature of the second buffer solution with
<▲> <▼>.
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 appears on
the display. Example:
Sal
mV mV/pH
S
1
% mg/l
m S/
cm
mbar M cm
1/ cm Sal
8
Time
°
C
Day.Month No.
/
% K
TP
° F
Year
Auto
Store Tref25
ARng
AR AR RCL LoBat nLF
mol/L
2
mV/pH
% ppm
mg/L
°F
8
%
TP
°C
CalError TempError
ARng AR RCL
pH 3300i/3400i
TDS UpH pH O Sal
mV/pH
4 0 1
% mg/l
m S/
mbar M
1/ cm
0 2 4 8
Baud
°
C
° F
Ident
Tref20 Auto
AutoCal DIN Store
ARng
Lin Cal AutoCal TEC
ba75682e02
cm
cm
Sal
/
% K
TP
AR AR RCL
03/2008