mineral
organic
soil moisture
soil
soil
%vol
Volt
Volt
m
3
.m
-3
0
0
0.257
0.177
0.05
5
0.379
0.280
0.10
10
0.497
0.394
0.15
15
0.595
0.501
0.20
20
0.677
0.590
0.25
25
0.749
0.667
0.30
30
0.810
0.734
0.35
35
0.860
0.793
0.40
40
0.899
0.843
0.45
45
0.930
0.882
0.50
50
0.956
0.914
0.55
55
0.977
0.940
0.60
60
0.995
0.962
0.65
65
1.011
0.981
0.70
70
1.026
0.997
0.75
75
1.038
1.012
0.80
80
1.050
1.025
0.85
85
1.060
1.037
0.90
90
1.070
1.048
0.95
95
1.079
1.057
1.00
100
1.088
1.067
DL2e slope and offset conversion
For DL2e data loggers, you can create sensor codes using slope
and offset, if you cannot use the linearisation table codes above.
These will be accurate only for the restricted range up to 30%vol.
The sensor code ‘Conversion Factor’ is the reciprocal of the
‘Slope’ figures above. Base units are mV and Engineering units
are %vol.
Conversion
Offset
From probe mV to:
Factor
%vol
mV/%vol
%volume, Mineral soil
18.96
-14.6
%volume, Organic soil
17.38
-12.1
Profile Probe User Manual
3.0a
Operation
z
21
