Endress+Hauser Solitrend MMP40, Operating Instructions Manual

Page: 23 / 36

Solitrend MMP40 Commissioning
Hauser 23
8.3 Calibration curves Cal1 to Cal15
The sensors are supplied with a suitable calibration. A maximum of 15 different
calibrations (Cal1 to Cal15) can be saved in the sensor and can be activated via the remote
display. To pre-test the compatibility of a calibration curve, the user can select individual
calibration curves (Cal1 to Cal15) in the Calibration" menu item and in the "Material
Property Calibration" window, activate them with the "Set Active Calib" button and then test
the curves with the material to be measured. The user can set the desired calibration curve
- which may have been modified - by clicking the "Set Default Calib" button. This curve is
activated for measurement once the sensor power supply is switched on. Non-linear
calibrations are possible with polynomials up to degree 5 (coefficients m0-m5).
5
10
15
20
25
50 100 150 200 250 300 350 400
Cal1
Cal3
Cal5
Cal2
Cal4
Cal7
Cal10
Cal11
Cal6
60
H %
t
p
A0037431
 16 Linear calibration curves (Cal1, Cal2, Cal3, Cal4, Cal5, Cal6, Cal7, Cal10, Cal11 )
H Gravimetric moisture; %
tp Radar transit time; picoseconds
Assignment of the calibration curve to the material to be measured
• Cal1 : Universal; sand/gravel/grit
• Cal2 : Sand 1.6
• Cal3 : Sand 1.7
• Cal4 : Sand 1.8
• Cal5 : Sand 1.9
• Cal6 : Gravel/grit
• Cal7 : Wood chips
• Cal10 : Grains of wheat
• Cal11 : Light sand