Manual

Operation handylab pH/LF 12
30
ba75370e03 11/2009
Note
At this point, the AutoCal DIN calibration can be terminated with <M>. 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.
6 Thoroughly rinse the electrode with deionized water.
7 If required, enter the temperature of the second buffer solution
with <▲> <▼> while keeping the <RUN/ENTER> key de-
pressed.
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:
10 When the measured value is stable, AR disappears. The value
of the slope (mV/pH) appears on the display. The probe symbol
shows the evaluation of the current calibration.
AutoCal TEC
/pH
mV
TDS
OU
Tref20
Cal
8
S
1
Sal
%
mg/l
1/
cm
Sal
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
d
2
°
C
TP
pH
C
AutoCal DIN
AutoCal TEC
AutoCal TEC
°
F
0
Cal
Tref20
Lin
0
Cal
Tref25
ARng
Tref25
Auto
ARng
Tref20
Lin
F
cm
1/1/
cm
AR
AR
RCL
RCL
OO UpHUpH SalSal
Store
Store
Auto
LoBat
LoBat
nLF
nLF
SalSal
%%
mg/lmg/l
mV/pHmV/pH
cmcm
°
mm
S/S/
cmcm
%%
//
KK
MM
TDSTDS
11
SS
mbarmbar
Time
Baud
Day.Month No.
Ident
Year
Time
Baud
Day.Month No.
Ident
Year
1
89
9
pHpH
C
°
C
°
ARAR
mV
88
44
22
TP
TP
2
1
AutoCal DIN AutoCal DIN