wtw Cond 1970i, Руководство по эксплуатации, Страница: 19 / 67

Cond 1970i Operation
19 ba75692e02 07/2009
4.2.4 TDS (Total dissolved solids)
You can measure the total dissolved solids as follows:
1 Perform the preparatory activities according to section 4.2.1.
2 Immerse the conductivity measuring cell in the test sample.
3 Press the <M> key until the unit mg/l appears.
The value of the total dissolved solids appears in the upper dis-
play line. The TDS factor appears in the lower display line.
4 Using <
▲
> <
▼
> , set the TDS factor (0.40 ... 1.00).
(The TDS factor has to be determined by a comparative mea-
surement before.)
5 Wait for a stable measured value.
TP
°
C
Sal
%
REL1
ARng
S
C
cm
S/
Sal
Cal RCL
%
cm 1/
0
m
O
Oxi AR
Year Ident
No. Day.Month
Tref20
LoBat Lin
pH
TEC
Auto Store
Time Baud
K /
REL2
pH / mV
1 0 0
4 4 7
mg/ l
Tref25
nLF
TP
°
C
Sal
%
REL1
ARng
S
C
cm
S/
Sal
Cal RCL
%
cm 1/
0
m
O
Oxi AR
Year Ident
No. Day.Month
Tref20
LoBat Lin
pH
TEC
Auto Store
Time Baud
K /
REL2
pH / mV
0 8 2
8 3 9
mg/ l
Tref25
nLF