wtw pH 1970i, Operating Manual

Page: 40 / 71

Operation pH 1970i
40 ba75690e01 01/2007
4 In two-point calibration:
Using
<M> or <RUN/ENTER> , you can switch back to the pH
measuring mode.
In three-point calibration:
Press
<RUN/ENTER> to display the slope [mV/pH] in the cali-
bration range II (SLO2) .
5 Press <RUN/ENTER> to display the value of the asymmetry
(mV) in the calibration range II (ASY2) .
6 Using <M> or <RUN/ENTER>, you can switch back to the pH
measuring mode.
2
5 0
Year Ident
Time
No. Day.Month
Baud
%
°
C
pH /
REL1
TP
Sal cm 1/
K
/
1
S
Store
AR LoBat nLF Lin Oxi
Tref25 Tref20
ARng
REL2
m
cm
S/
% mg/ l
Sal
O
pH
0
Cal TEC
Auto
mV
S Y A
RCL
Year Ident
Time
No. Day.Month
Baud
%
°
C
pH /
REL1
TP
Sal cm 1/
K /
1
S
Store
AR LoBat nLF Lin Oxi
Tref25 Tref20
ARng
REL2
m
cm
S/
%
mg/ l
Sal
O
pH
5 9 1
Cal TEC
Auto
mV
L 0 S
RCL
2
5 0
Year Ident
Time
No. Day.Month
Baud
%
°
C
pH /
REL1
TP
Sal cm 1/
K /
1
S
Store
AR LoBat nLF Lin Oxi
Tref25 Tref20
ARng
REL2
m
cm
S/
%
mg/ l
Sal
O
pH
2
Cal TEC
Auto
mV
S Y A
RCL
2