Soil Moisture – Heavy Duty Systems
Soil moisture measurement for challenging environments
Soil moisture measurement in remote, arduous, or extreme environments demand sensors that are low maintenance, robust, reliable, and provide quality data. The Soil Moisture – Heavy Duty Systems are built around sensors that are ideal for these environments.
Soil moisture measurement in remote, arduous, or extreme environments demand sensors that are low maintenance, robust, reliable, and provide quality data. The Soil Moisture – Heavy Duty Systems are built around sensors that are ideal for these environments.
Measurement of the soil moisture content using robust and reliable technologies, the Soil Moisture – Heavy Duty Systems range are sensors that have been proven in long term installations, and where the soil conditions are challenging. Featuring robust needles, quality enclosures and cabling, and proven measurement techniques, the range are ideal for mine site remediation monitoring, long term environmental monitoring projects, the measurement of water flow through the soil, and other similar applications.
ICT International offer solutions for the continuous measurement of the soil moisture connected with an IoT-capable datalogger. When connected to the Dataview platform, any calculations required are performed in the cloud using metadata from the sensors and data logger, requiring minimal input from the user.
Sensor combinations are built around two tiers of products, providing increasingly responsive and accurate solutions, culminating in a system that provides key soil moisture parameters for long-term site management.
| Parameter | Tier 1 (Good) Indicative / Observation | Tier 3 (Best) Research / Benchmark |
| Soil Sensor | MP406 | Hydraprobe |
| Power system | LP | LP |
| Part Number | SMHD-T1 | SMHD-T3 |
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Email: sales@ictinternational.com.au
Phone: 02 6772 6770 (between 9am to 5pm New South Wales time)
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About the Soil Moisture – Heavy Duty Systems:
All systems are built upon the ICT International Datalogger, which is optimised for the Dataview data handling platform. Providing an all-in-one datalogger, with power management and data handling, the datalogger platform is expandable with optional communication and sensor expansion modules.
Data
The Soil Moisture – Heavy Duty Systems measure the following parameters which can be visualised in the Dataview platform:
| Parameter | SMHD-T1 | SMHD-T3 |
| Volumetric Soil Moisture Content | 0-100% Volumetric Soil Moisture Content, measured using Amplitude Domain Reflectometry (also knowns as standing wave technology)
Voltage from 0-1160mV for use with user calibration calculation |
0% to 100% volumetric soil moisture, measured using Coaxial Impedance Dielectric Reflectometry |
| Soil Temperature | Yes, included in HydraProbe | |
| Bulk electrical conductivity | Yes, included in HydraProbe | |
| Pore Water EC | Yes, included in HydraProbe | |
| Geolocation | Accurate to 5 decimal places (approximately 1.11 metres, depending on installation conditions) | Accurate to 5 decimal places (approximately 1.11 metres, depending on installation conditions) |
About the Sensors
Tier 1 Sensors (SMHD-T1):
The Tier 1 system is based on:
- MP406: A proven and robust sensor for long-term installation, the MP406 is the ideal sensor for widescale monitoring of soil moisture measurements where long-term data in challenging conditions is required. When calibrated by the user, the sensors accuracy can be within ±1% VSW; with the standard calibration, it is ±3%. Unaffected by soil salinity or soil temperature, the MP406 provides a simple data stream for the monitoring of soil moisture content in long term installations.
- Power System: Supplied with the Low Power system containing a 10-watt solar panel and matching mount, and an internal 6,000mAh battery. The power system can be expanded with a supplementary 10-watt solar panel and mount to provide additional charge when used in low light conditions (EP-L).
Tier 3 Sensors (SMHD-T3):
The Tier 3 system is ideal for the detailed analysis of soil water responses for compliance monitoring.
- Hydraprobe: A multifunction soil moisture sensor, providing soil moisture measurements, soil temperature, bulk electrical conductivity, and pore water EC, the Hydroprobe is the solution for complex soil moisture measurement situations. Using a compact and robust enclosure, the Hydraprobe can be installed for long periods of time and still provide good quality data. Unaffected by soil salinity, Utilising proven measurement technologies, the Hydraprobe is a cost-effective solution for mine site remediation monitoring, long term environmental monitoring projects, the measurement of ________, and other similar applications.
- Power System: Supplied with the Low Power system containing a 10-watt solar panel and matching mount, and an internal 6,000mAh battery. The power system can be expanded with a supplementary 10-watt solar panel and mount to provide additional charge when used in low light conditions (EP-L).
Specifications
| Tier 1 (Good) Indicative / Observation | Tier 3 (Best) Research / Benchmark | |||||
| Part Number | SMHD-T1 | SMHD-T3 | ||||
| Parameter | Range / Accuracy / Detail | Value | Range / Accuracy / Detail | Value | ||
| Soil Moisture Content | Range | 0-100 VSW% | Range | 0-100 VSW% | ||
| Accuracy | ±1% (user calibration) ±3% (generic calibration) |
Accuracy | ± 0.01 ± 0.03 max for fine textured soils |
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| Resolution | 0.01% VSW% | Resolution | 0.001 | |||
| Soil Temperature | Range | -40°C to +75°C | ||||
| Accuracy | ± 0.3°C | |||||
| Resolution | 0.1°C | |||||
| Bulk electrical conductivity | Range | 0 to 5 dS/m: ± 2.0% or 0.2 S/m whichever is typically higher* 5 to 10 dS/m: ± 20% or 2.0 S/m whichever is typically higher |
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| Accuracy | 0 to 1 S/m (or 0 to 10 dS/m) | |||||
| Resolution | 0.001 | |||||
| Pore Water EC | Range | NA | ||||
| Accuracy | must have > 0.10 wfv | |||||
| Resolution | 0.001 | |||||
| Power system | LP | Solar Panel | 10W | LP | Solar Panel | 10W |
| Battery | 6,000mAh LiPO4 | Battery | 6,000mAh LiPO4 | |||
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