IMKO SONO-VARIO LD, User Manual

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1.3. Configuration of the Measure Mode
The configuration of SONO-VARIO is preset in the factory before delivery. A process-related later
optimisation of this device-internal setting is possible with the help of the service program
SONO-
CONFIG . For all activities regarding parameter setting and calibration the probe can be directly
connected via the RS485 interface to the PC via a RS485 USB-Module which is available from IMKO.
The following settings of SONO-VARIO can be amended with the service program
SONO-CONFIG :
Measurement-Mode and Parameters:

Measurement Mode A-On-Request (only in network operation for the retrieval of measurement
values via the RS485 interface).

Measurement Mode C Cyclic:
SONO-VARIO is supplied ex factory with suited parameters in Mode CA with 1 second
average time for bulk goods.
Mode CS: (Cyclic-Successive) For very short measuring processes (e.
g. 5…20 seconds)
without floating average, with internal up to 100 measurements per second and a cycle time of
250 milliseconds at the analogue output. Measurement mode CS can also be used for getting
raw data from the SONO-probe without averaging and filtering.
Mode CA: (Cyclic-Average-Filter) For relative short measuring processes with continual
average value, filtering and an accuracy of up to 0.1%
Mode CF: (Cyclic-Float-Average) for continual average value with filtering and an accuracy of
up to 0.1% for very slowly measuring processes, e.g. in fluidized bed dryers, conveyor belts,
etc.
Mode CK: (Cyclic-Kalman-Filter) Standard setting for SONO-MIX for use in fresh concrete
mixer with continual average value with special dynamic Kalman filtering and an accuracy of
up to 0.1%.
Mode CC: (Cyclic Cumulated) with automatic summation of a moisture quantity during one
batch process.
Mode CH: (Cyclic Hold) similar to mode CC but without summation.

Calibration (if completely different materials are deployed)
Each of these settings will be preserved after shut down of the probe and is therefore stored on a
permanent basis.
1.4. Operation Mode CA and CF at non-continuous Material Flow
For mode CA and CF the SONO probes are supplied ex factory with suited parameters for the
averaging time and with a universally deployable filter function suited for most currently applications.
The setting options and special functions of SONO probes depicted in this chapter are only rarely
required. It is necessary to take into consideration that the modification of the settings or the
realisation of these special functions may lead to faulty operation of the probe!
For applications with non-continuous material flow, there is the option to optimise the control of the
measurement process via the adjustable filter values
Filter-Lower-Limit, Filter-Upper-Limit and the time
constant No-Material-Keep-Time . The continual/floating averaging can be set with the parameter
Average-Time .