Conductivity
MultiLab 4010-1W
60
ba76141e07
08/2018
8.3.5
Setting the cell constant
(calibration with freely selectable check- and calibration standard)
You can set within a valid range the cell constant of the IDS conductivity sensor
(setting range: see sensor operating manual).
With a freely selectable check- and calibration standard with known conduc-
tivity nominal value (within the measuring range of the sensor), you can exactly
adjust the cell constant to the check- and calibration standard by the changing
conductivity value displayed.
In the default condition, the cell constant is set to the nominal cell constant of
the IDS sensor.
For this calibration procedure, the
Type
setting must be set to
man
. Proceed as
follows to set the cell constant:
1.
Connect the conductivity sensor to the meter.
2.
In the measured value display, select the conductivity parameter with
<M>
.
3.
Open the menu for measurement settings with
<ENTER>
.
4.
Select the setting of the cell constant
(
4310
:
Menu
Type
: man
and
Cell const. man
4320
:
Menu
Cell constant
)
The current conductivity value is displayed in the status line.
5.
Set the suitable temperature compensation and reference temperature
for the check- and calibration standard.
6.
Immerse the conductivity sensor in the check- and calibration standard.
Wait for a stable measured value.
7.
Using
<
><
>
, adjust the cell constant until the displayed conductivity
value ([i]
ϰ
= ...) corresponds to the nominal value.
8.
Switch to the measured value display with
<M>
.
The setting of the cell constant is taken over.
No calibration record is output.
Calibration
Type
man
Cell const. man:
0.475 1/cm
Temp. comp. (TC):
Multiplier for TDS:
1.00
Reset:
[
i
]
ϰ
= 1432 µS/cm
ϰ
03.04.2013
08:00
