Burkert Type 8619 - Manual (Page 101)

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Adjustmentandcommissioning
This monitoring is done by the generation of a "warning" event if the impedance range defined in the "Warn Hi/
Lo" functions below is exceeded and an "error" event if the impedance range defined in the "Err Hi/Lo" functions
below is exceeded.
IMPEDANCE: Read the impedance, measured in real time, on the electrode selected.
TEMP. DEPEND.: Temperature correction coefficient for measuring the impedance of a fluid. The default coef-
ficient is valid for probes sold by Bürkert.
WARNING HIGH: Enter the impedance value above which a "warning" event is generated.
WARNING LOW: Enter the impedance value below which a "warning" event is generated.
ERROR HIGH: Enter the impedance value above which an "error" event is generated.
ERROR LOW: Enter the impedance value below which an "error" event is generated.
8.12.5. monitoring the conductivity of the fluid
This function is used to monitor the fluid conductivity and define the device's behaviour if the ranges defined are
exceeded.
Refer to chap. 8.9 to access the Diagnostics menu.
Diagnostics Conductivity Mx:Conductivity
Conductivity:
Status: On/off
READING
Warn. high: ENTERING
Warn. low: ENTERING
Err. high: ENTERING
Err. low: ENTERING
A malfunction in your process or on the measurement cell may be revealed by too low or too high a fluid
conductivity.
To be warned when the conductivity is out of range:
→
activate monitoring of fluid conductivity in the "Status" function, and then
→
set a fluid conductivity range outside of which the multiCELL generates a "warning" event and displays the
icons
and .
→
set a fluid conductivity range outside of which the multiCELL generates an "error" event and displays the icons
and X .
When a "warning" or "error" event is generated by the multiCELL:
→
go into the "Information" menu to read the cause of generation of this event
→
and/or read the measured conductivity value.
→
if necessary, clean the cell and/or recalibrate the sensor.
→
if necessary, check the process.
• The "warning" event may also be associated with one and/or other digital outputs. See chap. 8.10.22.
• A current of 22 mA may be emitted on one and/or other of the current outputs when an "error" event related
to either the monitoring of the fluid pH, redox, conductivity or temperature values or the monitoring of an
analogue input is generated. See chap. 8.10.21 to activate the mode.
• See also "If you encounter problems", chap. 9.3
Type 8619
english