ICT MP306, Руководство по эксплуатации, Страница: 8 / 9

MP306 Moisture Probe Operation Manual
2.4.4 Polynomial Lookup Table
Linearisation tables can be added to Data Loggers using the following data:
A: Conversion Table for MP-306 - From VSW% to mV & mA in mineral soil.
2.5 Wiring
The MP306 is supplied with 4.5 m of four core shielded wire.
Wiring
Red = 7-16V DC
Blue and shield = Analogue Ground
(Signal Return)
Yellow =
Black = DC Ground
VSW% mV MP-
3
06 mA MP-
3
06 VSW% mV MP-
3
06 mA MP-
3
06
0.0 4.00 55.00 1015 18.50
120 5.71 60.00 1025 18.64
--5.0
2.00
5.00 210 6.99 65.00 1035 18.785
10.00 310 8.43 70.00 1045 18.93
15.00 415 9.93 75.00 1055 19.07
20.00 510 11.285 80.00 1065 19.21
25.00 610 12.71 85.00 1070 19.28
30.00 720 14.285 90.00 1080 19.43
35.00 825 15.785 95.00 1095 19.64
40.00 895 16.785 100.00 1120 20.00
45.00 955 17.64 105.00 2090
50.00 1005 18.35
B: Polynomial Lookup Table for Organic and Mineral Soil
Soil moisture
3

v
,
m
3
.m
-
mV,
organic
soil mV,
mineral
soil soil moisture
3

v
,
m
3
.m
-
mV,
organic soil mV,
mineral soil
--0.0 --209 --209 0.55 985 1015
0 50 120 0.6 1010 1025
0.05 140 210 0.65 1020 1035
0.1 230 310 0.7 1030 1045
0.15 320 415 0.75 1045 1055
0.2 415 510 0.8 1055 1065
0.25 500 610 0.85 1070 1070
0.3 600 720 0.9 1080 1080
0.35 700 825 0.95 1095 1095
0.4 800 895 1.0 1106 1106
0.45 875 955 1.05 2090 2090
0.5 940 1005