Owner's manual

Operation pH/ 3400i
26
4.3.2 AutoCal DIN
For this procedure, use two different standard buffer solutions accord-
ing to DIN 19266 (type A, C, D or F with pH values at 25 °C of: 1.679 /
4.006 / 6.865 / 9.180).
Note
Skip the steps 2 and 7 if you use a pH electrode with a temperature
sensor.
1 Press the <CAL> key repeatedly until the display Cd1 and the
function display AutoCal DIN appear. The sensor symbol dis-
plays the evaluation of the last calibration (or no sensor symbol
in the delivery state or after the measurement parameter has
been reset).
2 If required, enter the temperature of the first buffer solution with
<▲> <▼> while keeping the <RUN/ENTER> key depressed.
3 Immerse the pH electrode in the first buffer solution.
4 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:
AutoCal TEC
6
mV/pH
mol/L
8
Auto
Store
RCL
LoBat
CalError
ARng
AR
ConCal
Time
Baud
Day.Month No.
Ident
Year
1
U
%
°F
S
TempError
mg/L
% ppm
ISE
8
4
2
1C
d
°C
TP
pH
AutoCal DIN
U
AutoCal TECAutoCal TEC
mV
U
mV/pH
mol/L
8
Auto
Store
TempError
RCL
LoBat
CalError
ARng
ConCal
Time
Baud
Day.Month No.
Ident
Year
1
%
°F
S
mg/L
% ppm
ISE
8
4
2
°C
TP
mV/pH
mol/L
8
Auto
Store
TempError
RCL
LoBat
CalError
ARng
ConCal
Time
Baud
Day.Month No.
Ident
Year
1
%
°F
S
mg/L
% ppm
ISE
8
4
2
6
0
°C
TP
77
7
pH
mV
AR
0
AR
AutoCal DIN AutoCal DIN
pH
1 4