2c t – Xylem handylab pH 12 User Manual
Page 24
Operation
handylab pH 12
24
ba75368e04
01/2011
Note
At this point, the AutoCal TEC calibration can be terminated with <M>. This
corresponds to a single-point calibration. For this, the instrument uses the
Nernst slope (-59.2 mV/pH at 25 °C) and determines the asymmetry of the
electrode.
5
When the measured value is stable, Ct2 appears.
6
To continue the two-point calibration, thoroughly rinse the
electrode with deionized water.
7
If necessary, enter the temperature of the second buffer solu-
tion with <
▲> <▼>.
8
Immerse the pH electrode in the second buffer solution.
9
Press the <RUN/ENTER> key.
The AR display indicator flashes.
The electrode voltage (mV) or the buffer nominal value ap-
pears on the display. Example:
cm
3
7
°
F
0
Cal
Tref20
Lin
0
Cal
Tref25
ARng
AutoCal DIN
Tref25
Auto
AutoCal DIN
ARng
Tref20
Lin
F
cm
1/
1/cm
AR
AR
RCL
RCL
O
O
UpH
UpH
Sal
Sal
Store
Store
Auto
LoBat
LoBat
nLF
nLF
Sal
Sal
%
%
mg/l
mg/l
mV/pH
mV/pH
cm
°
m
m
S/
S/
cm
cm
%
%
/
/
K
K
M
M
TDS
TDS
1
1
S
S
mbar
mbar
Time
Baud
Day.Month No.
Ident
Year
Time
Baud
Day.Month No.
Ident
Year
0 0
3
7
pH
pH
C
°
C
°
AutoCal TEC
AutoCal TEC
AR
AR
mV
8
8
4
4
2
2
TP
TP
6
mV/pH
mol/L
8
Auto Store
RCL
LoBat
AutoCal DIN
CalError
ARng AR
ConCal
Time
Baud
Day.Month No.
Ident
Year
1
U
%
°F
S
TempError
mg/L
% ppm
ISE
8
4
2
2
C t
°C
TP
pH
AutoCal TEC