User Manual
SONO-MIX MINI Version 2_7
2017-05-12
Page 8
2. Configuration of the Measure Mode
The configuration of SONO- probe 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 serial interface to the PC with SM-USB-Module or the SONO-VIEW display module
which are available from IMKO.
The following settings of SONO probes 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 serial interface).
Measurement Mode C Cyclic:
SONO-VARIO is supplied ex-factory with suited parameters in
Mode CH
for measuring
moisture of sand and gravel. For other applications, mode CA could be usable. Up to 6 different
modes can be adjusted:
Mode CS:
(Cyclic-Successive) For very short measuring processes (e.g. 2
…10 seconds)
without floating average and without filter functions, 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 with Boost) 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.
Mode CH is recommended for applications in the construction industry.
If the SONO-
probe is installed under a silo flap, Mode CH can measure moisture when batch cycles are very
short, down to 2 seconds. Mode CH executes an automatic filtering, e.g. if dripping water
occurs.
Precision of a single TDR radar pulse measurement (see in chapter „Software tool SONO-CONFIG“
under point
„Setting the precision of a single value measurement”.
Each of these settings will be preserved after shut down of the probe and is therefore stored on a
permanent basis.
2.1. Cyclic operation modes CA, CF, CH, CC and CK
For the cyclic modes 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
.