Oxi 330i/340i
Operation
15
ba52306e04
03/2008
4.2.2
Measuring the D. O. concentration
Note
When measuring the concentration of test samples with a salt content of
more than 1 g/l, a salinity correction is required. For this, you have to measure
and input the salinity of the measured medium first. This is described in sec-
tion 4.3.3 E
NTERING
THE
SALT
CONTENT
(
SALINITY
).
Before measuring the oxygen, you have to switch on the salt content correc-
tion (see below).
You can measure the oxygen content without a salt content correction as fol-
lows:
Switching on/off
the salt content
correction
Proceed as follows to switch on the salt content correction:
1
Perform the preparatory activities according to section 4.2.1.
2
Immerse the D. O. probe in the test sample.
3
Press the
<M>
key repeatedly until the D. O. concentration in
mg/l
appears on the display.
ARng
%
LoBat
Cal
AR
8
°
F
Sal
mbar
S
1
RCL
Auto Store
1/cm
/
K
%
TDS
UpH
Sal
mV/pH
S/
m
cm
cm
M
Lin
Tref25 Tref20
nLF
AutoCal DIN
AutoCal TEC
Time
Baud
Day.Month No.
Ident
Year
6
7
1
9 2
7
O
°
C
mg/l
TP
1
In the D. O. concentration measuring mode, switch on the salt con-
tent correction with
<
▲
>
. The
SAL
display indicator appears on the
display. The value that was entered is taken into consideration dur-
ing the measurement (see section 4.3.3).
cm
cm
M
%
LoBat
Cal
AR
8
°
F
mbar
S
1
RCL
Auto Store
1/cm
/
K
%
TDS
UpH
Sal
mV/pH
S/
m
Lin
Tref25 Tref20
nLF
AutoCal DIN
AutoCal TEC
Time
Baud
Day.Month No.
Ident
Year
6
7
1
4 2
5
O
°
C
mg/l
ARng
TP
Sal
