Xylem handylab LF 12 - Manual (Page 23)

handylab LF 12 Operation
23 ba75367e04 01/2011
4.3.1 Determining the cell constant
(calibrating in the control standard)
Note
This method of automatically determining the cell constant by calibration with
the 0.01 mol/l KCL standard solution can only be used for measuring cells
with cell constants in the range 0.450 ... 0.500 cm
-1
or 0.800 ... 1.200 cm
-1
.
This is how you can determine the cell constant:
Display Cell constant [cm
-1
]
0.450 ... 0.500 cm
-1
0.800 ... 1.200 cm
-1
E3
Eliminate the error according to
chapter 6 W
HAT TO DO IF ...
outside the ranges
0.450 ... 0.500 cm
-1
or
0.800 ... 1.200 cm
-1
1 Press the <CAL> key until CELL appears on the display.
2 Press the <RUN/ENTER> key.
3 Press the <CAL> key repeatedly, until the calibrated cell con-
stant appears on the display: CAL appears on the display.
O UpH
L F
Sal
Store
RCL AR
Auto AutoCal DIN
AutoCal TEC LoBat Cal ARng
Tref25 Tref20
Lin nLF
Sal
% mg/l
mV/pH
cm
°
°
TP
m S/ cm
cm 1/
F
C
% / K
M
TDS
8 1 S
mbar
Time Baud
Day.Month No.
Ident Year
L C L E