IMKO TRIME-PICO 32, Manual

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Manual TRIME_PICO64-32 Version 2_0 2017-05-30
Page 32
11.9 Calibration Curves
PICO64/32 probes are supplied with different calibration curves.
Cal1 Universal Soil Vol . is a nonlinear calibration curve 5
th
order which is suitable for most soils.
Cal 2 to Cal7 (see next pages) can be selected for special applications. These are the calibration functions in-
stalled to the upgrade version of the Trime-PICO32/64 delivered together with the measurement of the Ra-
dar based Conductivity (RbC). If you want to have these Calibration functions for your current Trime-PICO
please contact IMKO GmbH (info@imko.de)
A maximum of 15 different calibration curves (Cal1 ... Cal15) can be stored inside the PICO probe and can op-
tionally be activated via the program
PICO-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 to m5).
IMKO publish on its website more suitable calibration coefficients for different materials. These calibration
coefficients can be entered and stored in the PICO probe by hand (Cal14 and Cal15) with the help of PICO-
CONFIG.
Next page:
The following charts (Cal.1 .. 15) show different selectable calibration curves which are stored inside the PICO
probe.
On the y-axis the gravimetric moisture
Moist (or Dielectric-Constant Epsilon) is shown. On the x-axis depend-
ing on the calibration curve the associated radar time tp in picoseconds is shown. With the software PICO-
CONFIG the radar time tp is shown on the screen parallel to the moisture value Moist .