Hach-Lange SC 1000 - Manual (Page 120)

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Advanced Operations
• A matrix correction that involves the measurement data generated in the laboratory
being used to correct the probe
During a pure control measurement, the measurement data is transferred from the probe
to the photometer where it is then archived together with the photometric reference data
that has been recorded.
During a matrix correction, the reference data generated in the laboratory is transferred to
the probe to be used for the correction.
The matrix correction process requires operating steps to be completed on the sc
controller and on a LINK2SC-compatible photometer.
Please refer to the LINK2SC user manual for a detailed description of the LINK2SC
procedure.
6.6 PROGNOSYS
PROGNOSYS (Prognosis System) is a software used to monitor and display the quality
of measurement values and identify upcoming maintenance work. This add-on is suitable
for use with sc1000 controllers and sc probes.
The quality of the measurement values and the time left until the next routine
maintenance are displayed on the sc controller by means of horizontal bars. A clear
green, yellow and red system makes it quick and easy to identify and record the status of
each probe. There is an individual display for each probe.
PROGNOSYS is operated and configured via the sc controller touch screen.
The maintenance messages provide information on any maintenance tasks that must be
performed by the user, for example if it is necessary to clean the sensor or top up the
reagents. Any required service measures that must be performed by a service technician
are also displayed. All maintenance messages have an adjustable run-up period to
ensure that there is a sufficient time period available for a service technician to be
contacted or an order process to be initiated.
The consistent implementation of maintenance measures will serve to increase the
availability of reliable measurement values and the service life of the connected
equipment.
PROGNOSYS is not part of the standard delivery, required is the optional WTOS
communication card.
6.7 WTOS
WTOS (Water Treatment Optimization Solutions) consist of several control modules, e.g.
for controlling:
• dosing of chemicals for ortho-phosphorous removal
• aeration for nitrogen removal
• sludge dewatering
• sludge thickening
• sludge retention time
WTOS is not part of the standard sc1000 delivery, required is the optional WTOS
communication card.