IMKO SONO-VARIO LD, Руководство пользователя

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1.4.4. Mode CH
– Automatic Moisture Measurement in one Batch
If the PLC already accumulates moisture values, than an additional automatic summation of a
moisture quantity inside the SONO-VARIO during one batch process will produce errors.
From the procedure the mode CH is identically with the mode CC, but without automatic summation.
1.5. Calibration Curves
SONO-VARIO is supplied with a universal calibration curve for sand (Cal1: Universal Sand Mix). A
maximum of 15 different calibration curves (CAL1 ... Cal15) are stored inside the SONO probe and
can optionally be activated via the program
SONO-CONFIG .
A preliminary test of an appropriate calibration curve (Cal1. .15) can be activated in the menu
"Calibration" and in the window
“Material Property Calibration"
by selecting the desired calibration
curve (Cal1...Cal15) and with using the button
“
Set Active Calib
”. The finally desired and possibly
altered calibration curve (Cal1. .15) which is activated after switching on the probes power supply will
be adjusted with the button "
Set Default Calib
”.
Nonlinear calibrations are possible with polynomials up to 5th grade (coefficients m0...m5).
IMKO publish on its website more suitable calibration coefficients for different materials. These
calibration coefficients can be entered and stored in the SONO probe by hand (Cal14 and Cal15) with
the help of SONO-CONFIG.
The charts (Cal.1 .. 15) in the next two pages show different selectable calibration curves which are
stored inside the SONO probe.
Plotted is on the y-axis the gravimetric moisture (
MoistAve ) and on the x-axis depending on the
calibration curve the associated radar time tpAve in picoseconds. With the software SONO-CONFIG
the radar time tpAve is shown on the screen parallel to the moisture value MoistAve (see "Quick
Guide for the Software SONO-CONFIG). In air, SONO-probes measure typically 60 picoseconds
radar time.