English
Cond 3110
6
ba75783y03
05/2017
Determining/
setting up the cell
constant [C]
Due to aging, the cell constant slightly changes. As a result, an inexact
measured value is displayed. Calibration determines the current value of the cell
constant and stores this value in the meter.
Thus, you should calibrate at regular intervals.
You can either determine the cell constant of the conductivity measuring cell in
the range 0.800 ... 0.880 cm
-1
by calibration in the control standard 0.01 mol/l
KCl or adjust it manually in the range 0.800 ... 1.200 cm
-1
.
Determining the
cell constant
(calibration in
control standard)
Using the last
calibrated cell
constant
Prerequisite:
No valid calibration exists.
1
Press <CAL> repeatedly until
CAL CELL
is displayed.
2
Press <ENTER> or <CAL
_
> to confirm the selection of
CAL CELL
.
The cell constant of the last calibration is displayed.
3
Immerse the measuring cell in the control standard solution, 0.01 mol/
l KCI.
4
Start the calibration with <ENTER>.
The determination of the cell constant with stability control starts. The
[Auto] display flashes until a stable signal is available.
The cell constant determined is displayed. The meter automatically sto
-
res the cell constant.
5
Switch to the measuring mode with <ENTER>.
The determined cell constant is used.
1
Press <CAL> repeatedly until
USE CELL
is displayed.
2
Press <ENTER> or <CAL
_
> to confirm the selection of
USE CELL
.
3
If necessary, press <CAL> repeatedly until
CAL
and the last calibrated
cell constant is displayed.
4
Confirm the selection with <ENTER>.
The displayed cell constant is used.
The meter switches to the measured value display.
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