Burkert Type 8619 - Manual (Page 97)

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Adjustmentandcommissioning
• MANUAL CALIBRATION: Calibrate the conductivity sensor by determining its specific C constant. See details
of the procedure below. When a sensor is calibrated manually, the most recent calibration date is updated
(function "LAST" in the sub-menu "CALIBRATION INTERVAL" below).
• CELL CONST.: Read the most recent C constant determined by one of the calibration functions or modify
it. This entry does not update the most recent calibration date (function "LAST" in the sub-menu CALIB
INTERVAL below).
TDS FACTOR: Enter the conversion factor between conductivity and quantity of dissolved solids (TDS) appro-
priate to your fluid.
CALIBRATION INTERVAL: Read the date of the last automatic or manual calibration (function "LAST") and set
the periodicity of calibrations, in days (function "INTERVAL"): each time a calibration is due, the multiCELL gen-
erates a "maintenance" event, signalled on the display by the icon , and a "warning" event. Configure "0000
days" in the "INTERVAL" function in order not to use the function.
• The "warning" event may be associated with one and/or other digital outputs (see chap. 8.10.22).
• See also "If you encounter problems", chap. 9.3
CALIB. LOG: Read the latest valid calibration values.
Details of the calibration procedure for a conductivity sensor
Calibration consists in determining the cell constant specific to each sensor using a solution with a known
conductivity.
• In order not to interrupt the process, activate the HOLD function (see chap. 8.11.1).
• Before each calibration, correctly clean the electrode with a suitable product.
• Set the periodicity of calibrations in the "Interval" function in the sub-menu "Calib interval" (see above):
each time a calibration is due, the multiCELL generates a "maintenance" event and a "warning" event.
Type 8619
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