Xylem handylab pH LF 12 - Manual (Page 26)

Operation handylab pH/LF 12
26 ba75370e03 11/2009
Note
At this point, the AutoCal TEC calibration can be terminated with . This
corresponds to a single-point calibration. When doing so, the instrument
uses the Nernst slope (-59,2 mV/pH at 25 °C) and determines the asymmetry
of the electrode.
2 If required, enter the temperature of the first buffer solution with
<
▲> <▼> while keeping the key depressed.
3 Immerse the pH electrode in the first buffer solution.
4 Press the key.
The AR display indicator flashes.
The electrode voltage (mV) or the buffer nominal value ap-
pears on the display. Example:
5 When the measured value is stable, Ct2 appears.
6 Thoroughly rinse the electrode with deionized water.
/pH mV
TDS O U
Tref20
Cal
8
S 1
Sal
% mg/l
1/cmSal
AutoCal DIN
Lin
Tref25
nLF RCL
Auto Store
LoBat ARng AR
Time Baud
Day.Month No.
Ident Year
mbar cm M
° F
/ K %
S/ m cm
8 4 2
t 1
° C
TP
pH
C
AutoCal TEC
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
/pH mV
TDS O U
Tref20
Cal
8
S 1
Sal
% mg/l
1/cmSal
AutoCal DIN
Lin
Tref25
nLF RCL
Auto Store
LoBat ARng AR
Time Baud
Day.Month No.
Ident Year
mbar cm M
° F
/ K %
S/ m cm
8 4 2
t 2
° C
TP
pH
C
AutoCal TEC