wtw pH/Oxi 340i Operating Manual page 39

pH/Oxi 340i
3 Put the D. O. probe into the air calibration vessel.
4 Press the <CAL> key repeatedly until the calibration mode ap-
pears. The sensor symbol displays the evaluation of the last
calibration (or no sensor symbol in the delivery state or after the
measurement parameter has been reset).
TDS UpH O
S
C A L
1
Time Baud
1
8 7
Day.Month No.
Year Ident
Tref25 Tref20 AutoCal DIN
LoBat nLF Lin Cal AutoCal TEC
5 Press the <RUN/ENTER> key. AutoRead is active, AR flashes.
TDS UpH O
S
1 0 8 8
Time Baud
1
8 7
Day.Month No.
Year Ident
Tref25 Tref20 AutoCal DIN
LoBat nLF Lin Cal AutoCal TEC
6 As soon as a stable value is reached, the AR display indicator
stops flashing. The calibration is finished now. The value of the
relative slope appears on the display. The probe symbol shows
the probe evaluation (see page 38).
TDS UpH O
S
0 8 8
1
Time Baud
8 1 7
Day.Month No.
Year Ident
Tref25 Tref20 AutoCal DIN
LoBat nLF
Lin Cal AutoCal TEC
7 Switch to the measuring mode with <M>.
Sal
mV/pH
%
mg/l
m S/
cm
mbar M cm
1/ cm Sal
6
°
C
/
% K
TP
° F
Auto Store
ARng
AR RCL
Sal
mV/pH
%
mg/l
S/
m
cm
mbar M cm
1/ cm Sal
6
AR
Sal
mV/pH
%
mg/l
m S/
cm
mbar M cm
1/ cm Sal
6
° C
/
% K
TP
° F
Auto Store
ARng
AR RCL
Operation
39