TetraCon
®
700 SW
Measuring / Operation
29
ba75538e01
04/2005
4
Measuring / Operation
4.1
Measuring
Warning
Contact with the sample can lead to danger to the user!
Depending on the type of sample, suitable protective measures
must be taken (protective clothing, protective goggles, etc.).
Minimum immersion
depth
Observe the minimum immersion depth of the conductivity measuring
cell (> 30 mm).
Spacing
Make sure the conductivity measuring cell is surrounded by a gap of at
least 5 cm from the electrodes at the base and sides (boundary fields)
when measuring.
Measuring at a narrow
location
If the gap is less than that, the cell constant changes. This leads to
inexact measurement results. Normally, measuring transmitters have a
correction function that can compensate for this influence. This
procedure determines a new cell constant for the system consisting of
conductivity measuring cell + measuring environment. For more
detailed information, refer to section 4.2 A
PPLICATION
-
DEPENDENT
SETTINGS
.
Note
Normally, the conductivity measuring cell does not age. Special
measuring mediums (e.g. strong acids and bases, organic solvents) or
temperatures that are too high may considerably reduce its lifetime or
lead to damage. No warranty claims can be made for mechanical
damage or any failure caused by these types of measuring mediums.
> 30 mm
TetraCon 700 SW
> 50 mm
> 50 mm
