Handi-TRASE
Portable TDR Soil Moisture Measurement
The SEC HandiTRASE uses TDR to measure soil moisture content reliably and accurately. Applications include transects of soil moisture measurement for the ground truthing of remote sensing (satellite and airborne devices) data, an alternative to oven dried soil sampling, and when portable point measurements need to be taken.
The HandiTRASE System is a self-contained, portable unit designed for field use for fast and accurate measurements of moisture in soil using Time Domain Reflectometry (TDR). This is a true TDR instrument with automatic beginning and end point determinations and full graphing abilities, allowing determination of both time and impedance differences along a waveguide.
Available in 4 versions, the TR85 Handi-TRASE is a portable tool ideal for point soil moisture measurement.
- TR85 (Old part number: 6085): Handi-TRASE, Handi-TRASE Unit only
- TR85-S (Old part number: 6085K1): Handi-TRASE plus Connector 15 cm and 30 cm Waveguide Probes
- TR85-F40 (Old part number: 6085K2): Handi-TRASE plus 40 cm Field (Slammer) Waveguide
- TR85-FC40 (Old part number: 6085K3): Handi-TRASE plus 40 cm Coated Field (Slammer) Waveguide
HandiTrase:
- Works with standard waveguides: Buriable, Slammer and Standard Connector types.
- Accuracy+/- 2% or less of Full Scale 0-100% volumetric water content.
- 10 ps resolution minimum sampling rate.
- Measurement pulse: 1VPP, <130ps risetime (typical).
- Cable measurements up to 250 feet. (used to validate Probe assemblies & extended Probe cable runs)
- TOR graphic waveform analysis.
- Automatic GPS Location tagging (User enabled)
- Create Site Location Tags for any or all of your measurements.
- Editable journal entries can be added to your measurements, even days later.
- Export data to your desktop via Email, USB, USS-Ethernet, Bluetooth or WiFi.
- Built in camera to help document site conditions.
- User selectable English or Spanish languages.
Hardware Specifications:
- Android OS 5.1 running on A53 4-core CPU @ 1.2GHz. 16GB Flash memory, 2GB for OS.
- Android Play Store capable.
- Display: 1280×800 full color IPS capacitive touch screen.
- SIM-card slot for Data modem & Phone. (WBCDMA, GSM/LTE & others)
- Micro-SD memory expansion slot up to 32GB.
- Cameras: 8MP front & 2MP rear.
- USB 2.0, Bluetooth 4.0 & WiFi (B/G/N). (USS-Ethernet capable with optional dongle)
- Charge port, 3.5mm audio headphone/microphone jack & flashlight.
- Operating temperatures: -20 to +50C, storage temperatures: -40 to +60C.
- Humidity 5 to 95% non-condensation.
- Industrial Case: IP-67 & drop resistant from 1.2 meters.
- 3.7V 7200mA Li-battery. (Lasts several days under constant use, over a week on standby)
Using Time Domain Reflectometery, the HandiTRASE is a portable system that provides volumetric water content results that are equivalent to oven dried soil samples.
How TDR works:
Time Domain Reflectometry (TDR) calculates volumetric soil moisture content by measuring dielectric properties. The dielectric properties are converted to volumetric water content using proven relationships (see Topp et al (1980) for details). ICT International also has an explainer within the Knowledge Base.
Soil Moisture Equipment provide an extensive range of accessories for the Trase range of TDR soil moisture sensors.
Probes
- The Field (Slammer) Probe heavy duty Waveguides are designed for use with the HandiTRASE range of TDR soil moisture sensors.
- Heavy duty Waveguides, 20 to 60 cm in 10 cm increments. Heavy Duty Waveguides are alternatives lengths suitable for use with the Handi-Trase and Field (Slammer) Probe.
- Buriable Probes for long term soil moisture profiles
- Waveguide Probes, 8 cm or 20 cm
Replacement parts
- Connector Probe (Rods Not Included)
- Complete O-Ring Kit for Connector Probe
Installation Tools
- The installation tools for TRR-S (6008) Series Waveguides ensure consistent installation of the Waveguides (6012) and also simplify the installation into harder soils (6010).
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