IM 12D08N05-01E
5-1
<5. MENU STRUCTURE COMMISSIONING>
5. MENU STRUCTURE
COMMISSIONING
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Measurement setup
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Main parameter
Choose the required parameter, either conductivity or resistivity. If the main parameter
is changed the instrument will reset main display settings, units and recalculate several
values. The menu structure will change accordingly.
5.1 Configure sensor
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Sensor type
Choose the sensor type used. Normally conductivity and/or resistivity measurements
are done with 2-electrode type sensors. At high conductivity ranges, polarization of the
electrodes may cause an error in conductivity measurement. For this reason 4-electrode
type sensors may be necessary.
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Measuring unit /cm /m
Either /cm or /m can be chosen here. The process values will be expressed in S/cm or S/m
respectively, (Ω.cm or Ω.m in resistivity mode).
Note: When measuring unit is changed, parameter of “mA output setup” and “contact output setup” will
be cleared. Set these parameter again refering to subsection 5.6 to 5.7.
If you replace the sensor, delete the predictive maintenance log first on the logbook
configuration screen in section 5.12. If you do not, proper prediction will not be possible
using the sensor diagnostics.
You can check whether the log has been properly cleared by changing the sensor data to
predictive maintenance under Read logbook on the Detail screen of figure 4.3 and then
pressing Enter.
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Cell constant (factory)
Cell constant given by factory calibration. Usually given on a label on the sensor or the
calibration certificate. Only change this value in case a new sensor is used. By changing
this value the actual cell constant is also changed.
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Measure
Process values to be measured can be selected to suit the user’s preference.: Conductivity
only, Concentration only or one of both Conductivity and Concentration.
Note: this choice is not available in Resistivity mode.
