wtw Multi 197i User Manual

Multi 197i Operation
29
ba75339e04 07/2009
4.4.2 Measuring the D. O. concentration
When measuring the concentration of test samples with a salt content
of more than 1 g/l, a salinity correction is required.
Note
How to enter the current salt content is described in
section 4.4.6 E
NTERING THE SALT CONTENT (SALINITY) on page 35.
Switching the salt content correction on or off, see below.
To measure the D. O. concentration with and without salt content cor-
rection, proceed as follows:
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 4.4.1.
2 Immerse the D. O. sensor in the test sample.
3 Press the <▲> <▼> key repeatedly until the D. O. concentra-
tion in mg/l appears on the display.
Sal
S
pH
AR
1
LoBat nLF Lin Oxi
Tref25 Tref20
Cal TEC
Auto Store
8
Time
Year Ident
No. Day.Month
Baud
Sal
cm
1/
K
/
%
RCL
REL2
pH/mV
m
cm
S/
%
7
1 7 6
92
°
C
TP
REL1
O
ARng
mg/l
1 Perform the preparatory activities according to section 4.4.1.
2 Immerse the D. O. sensor in the test sample.
3 While pressing the <RUN/ENTER> key, switch on the salt con-
tent correction with <▲> . The SAL display indicator appears
on the display. The specified salt content is taken into consid-
eration during the measurement.

wtw Multi 197i Specifications

General

Brand	wtw
Model	Multi 197i
Category	Measuring Instruments
Language	English