Teros 10
The TEROS 10 sensor is designed to be installed in mineral soils, many types of growing
media, and other porous materials.
This manual guides the customer through the sensor features and applications and
describes how to use the sensor successfully.
• Volumetric water content (VWC) measurement
• Soil–water storage measurement
• Irrigation management
Prior to use, verify the TEROS 10 arrived in good condition. METER recommends testing the
sensors with the data logging device and software before going to the field.
Specifications
Measurement Specification
Volumetric Water Content (VWC)
Range
| Mineral Soil Calibration | 0.00–0.64 m³/m³ |
| Soilless Media Calibration | 0.0–0.7 m³/m³ |
| Apparent dielectric permittivity (εa) | 1 (air) to 80 (water) |
| NOTE: The VWC range is dependent on the media the sensor is calibrated to. A custom calibration will accommodate the necessary ranges for most substrates. | |
| Resolution | 0.001 m³/m³ |
Accuracy
| Mineral Soil Calibration | ±0.03 m³/m³ typical in mineral soils that have solution EC <8 dS/m |
| Soil Media Calibration | ±0.05 m³/m³ typical in media that has a solution EC <8 dS/m |
| Medium Specific Calibration | ±0.01–0.02 m³/m³ in any porous medium |
| Apparent dielectric permittivity (εa) | 1–40 (soil range) , ±1 εa (unitless) 40–80, 15% of measurement |
Dielectric Measurement Frequency
70MHz
Communication Specifications
Output
1,000-2,500 mV
Data Logger Compatibility
Data acquisition systems capable of switched 3.0–15 VDC excitation and single-ended
voltage measurement at greater than or equal to 12-bit resolution.
Physical Specifications
Dimensions
| Length | 5.1 cm (2.02 in) |
| Width | 2.4 cm (0.95 in) |
| Height | 7.5 cm (2.95 in) |
Needle Length
5.4 cm (2.11 in)
Cable Length
5 m (standard)
40 m (maximum custom cable length)
NOTE: Contact Customer Support if a nonstandard cable length is needed.
Cable Diameter
0.165 ± 0.004 (4.20 ± 0.10 mm) with minimum jacket of 0.030 (0.76 mm)
Connector Types
Stereo plug connector or stripped and tinned wires
Stereo Plug Connector Diameter
3.50 mm
Conductor Gauge
22 AWG/24 AWG drain wire
Electrical and Timing Characteristics
Supply Voltage (VIN to GND)
| Minimum | 3.0 VDC |
| Typical | NA |
| Maximum | 15.0 VDC |
Operating Temperature Range
| Minimum | –40 °C |
| Typical | NA |
| Maximum | 60 °C |
NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.
Measurement Duration
| Minimum | 10ms |
| Typical | NA |
| Maximum | NA |
COMPLIANCE
Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)
2014/30/EU and 2011/65/EU
EN61326-1:2013 and EN55022/CISPR 22
For inquiries contact us
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