Instruction Manual

handylab Ox 12 Operation
25
ba75369e04 01/2011
4.3.1 Calibrating with the air calibration vessel
Proceed as follows to calibrate the instrument:
Note
The sponge in the air calibration vessel must be moist (not wet).
1 Connect the D. O. probe to the measuring instrument.
2 Keep an air calibration vessel ready for use.
3 Put the D. O. probe into the air calibration vessel.
4 Press the <CAL> key repeatedly until O
2
CAL appears.
5 Press the <RUN/ENTER> key. AutoRead is active, AR flashes.
6 As soon as a stable value is reached, the AR display indicator stops
flashing. This indicates that the calibration is complete; the sensor
symbol shows the relative slope that was determined and the sensor
evaluation (see page 24).
ARng
mg/l
8
LoBat
Time
Baud
Day.Month No.
Ident
Year
Sal
%
mbar
1
S
RCL
AR
Store
Auto
°
F
1/
cm
/
K
%
TDS
UpH Sal
mV/pH
S/
m
cm
cm
M
Lin
Tref25
Tref20
nLF
AutoCal DIN
AutoCal TEC
6
7
1
A
L
C
O
°
C
TP
Cal
ARng
mg/l
8
LoBat
Time
Baud
Day.Month No.
Ident
Year
Sal
%
mbar
1
RCL
Store
Auto
°
F
1/
cm
/
K
%
TDS
UpH Sal
mV/pH
S/
m
cm
cm
M
Lin
Tref25
Tref20
nLF
AutoCal DIN
AutoCal TEC
6
7
1
8
8
0
O
°
C
TP
Cal
AR
S