wtw 330i - Page 22

Operation pH 330i/340i
22
Note
At this point, the AutoCal TEC calibration can be terminated with <M>.
This corresponds to a single-point calibration. For this, the instru-
ment 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
OO UpHUpH SalSal
Store
Store
Auto
LoBat
LoBat
nLF
nLF
SalSal
%%
mg/lmg/l
mV/pHmV/pH
cm
°
mm
S/S/
cmcm
%%
//
KK
MM
TDSTDS
11
SS
mbarmbar
Time
Baud
Day.Month No.
Ident
Year
Time
Baud
Day.Month No.
Ident
Year
0
03
7
pHpH
C
°
C
°
AutoCalTEC
AutoCalTEC
ARAR
mV
88
44
22
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
2C
t
°C
TP
pH
AutoCal TEC