Soil Moisture Sensor (TDR-315H)

TDR-315H

The TDR-315H is one of MUNRO’s H-series sensors, which are very low power and suited perfectly for power-conscious applications. Being part of the Soil Smart Series means that its advanced waveform analysis works with all mineral soil types. It is a complete integrated time domain reflectometer that combines ultra-fast waveform generating and digitizing functions with a precision 5 pico-second resolution time base and highly sophisticated waveform digitizing and analyzing firmware that provides true time domain analysis of soil-propagated waveforms. It’s longer waveguides provide a very large sampling volume and high accuracy of the waveform propagation.
Its form factor is designed for shallower horizontal installations where it is pushed into the sidewall of a trench that has been dug to the desired measurement depth. A probe guide is provided to ensure that the waveguide rods are parallel when pushing them into the soil. It provides reading data through a 3-wire SDI-12 interface and is compatible with any data recorder that is compliant with SDI-12 version 1.4 and earlier.

SKU: TDR-315H Category: Tag:

Description

The TDR-315H is one of MUNRO’s H-series sensors, which are very low power and suited perfectly for power-conscious applications. Being part of the Soil Smart Series means that its advanced waveform analysis works with all mineral soil types. It is a complete integrated time domain reflectometer that combines ultra-fast waveform generating and digitizing functions with a precision 5 pico-second resolution time base and highly sophisticated waveform digitizing and analyzing firmware that provides true time domain analysis of soil-propagated waveforms. It’s longer waveguides provide a very large sampling volume and high accuracy of the waveform propagation.
Its form factor is designed for shallower horizontal installations where it is pushed into the sidewall of a trench that has been dug to the desired measurement depth. A probe guide is provided to ensure that the waveguide rods are parallel when pushing them into the soil. It provides reading data through a 3-wire SDI-12 interface and is compatible with any data recorder that is compliant with SDI-12 version 1.4 and earlier.

Features

• Ultra-low power consumption and fast response time
• Designed for easy use in shallower horizon-tal applications
• Very large sampling volume with the wide spacing and the longer 15cm waveguides
• High accuracy MUNRO sensor configuration
• Soil Smart analysis works with all mineral soil types
• Incident Wave Amplitude: 400mV
• 20% to 80% Incident Wave Rise Time: 150ps
• Waveform Digitizing Resolution: 5 ps
• SDI-12 Interface
• 3-element 15 cm stainless steel waveguide
• 5m or 10m 3-conductor waterproof cable (standard)
• Waterproof Epoxy-filled Housing.

Measurement Functions

Volumetric Water Content: 0% to 100%
Medium Permittivity: 1 to 80
Medium Bulk Electrical Conductivity: 0 to 2000 µS/cm
Medium Temperature: -40 to +55°C
Pore Water EC (Hillhurst Model): 0 to 55000 µS/cm

Documentation

TDR-315H_SPEC2023