PASCO PS-2163 Soil Moisture Sensor - Manual (Page 7)

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Model No.PS-2163 Setup
7
Sample Calibration Data
Experiment Suggestions
• Measure soil moisture over time.
• Evaluate soil moisure content for various species of plants to determine the opti-
mal level of soil moisture.
• Examine soil moisture content in a greenhouse to determine the amount of irriga-
tion.
Specifications (PS-2163)
Sensor
voltage
output (mV) Sample
volume (cm
3
)
Mass of
container +
moist soil (g) Mass of
container +
dry soil (g) Volume of
water (cm
3
)
VWC
(cm
3
/cm
3
)
1 664 15.31 94.836 94.215 0.621 0.0406
2 764 15.31 96.433 95.194 1.239 0.0809
3 902 15.31 96.923 94.785 2.138 0.1396
4 1030 15.31 101.979 98.834 3.145 0.2054
5 1318 15.31 100.402 95.873 4.529 0.2958
6 1374 15.31 101.060 95.886 5.174 0.3379
Sensor Range 0 to 45% volumetric water content in soil
Accuracy ± 4%
Resolution 0.1%
Power 3 mA at 5 V DC
Operating Temperature -40 to + 60 °C
Default Sample Rate 10 samples per second