Profile probe PR2
Delta T soil moisture probe PR2 enables you to monitor your soil water profiles or record soil moisture changes over time. It provides unprecedented performance in all soil types, with minimal influence from either salinity or temperature. The PR2/4 model measures soil moisture at 4 depths down to 40 cm, the PR2/6 measures at 6 depths down to 100 cm. Uses access tubes allow an easy probe insertion and removal. Both analogue and SDI-12 interfaces are available for the PR2.
The PR2/4 model has sensing elements at 10/20/30/40 cm; The PR2/6 has sensing elements at 10/20/30/40/60 and 100 cm. Profile Probes are available with analogue or SDI-12 outputs.
Profile Probes are used within access tubes inserted into augered holes in the soil – correct installation is vital for accurate measurement of soil moisture profiles. The goal of installation is to produce optimal contact between the soil and the wall of the access tube. The augered holes should be straight, smooth sided and the correct diameter. Delta-T augering kits help you achieve the best possible access tube installation in virtually any soil.
The HH2 is a versatile readout unit that provides an easy and convenient way to display and store readings from Profile Probes. With the HH2 and PR2 combination, a probe can be moved from access tube to access tube, enabling large amounts of soil moisture data to be collected at multiple sites.
|
Measurement |
Volumetric water content |
|
Accuracy |
± 0.04 m3.m-3 (4%) With soil-specific calibration |
|
Soil moisture measurement range |
Full range : 0 to 1.0 m3.m-3 Full accuracy over: 0 to 0.4 m3.m-3 |
|
Salinity range |
50 to 400 mS.m-1 Salinity errors included in calibration |
|
Power supply |
5.5 – 15 VDC, Minimum 7.5 V with 100 m cable |
|
Power consumption |
<60 mA at 12 V DC, Sleep current <2 mA at 12 V DC |
|
Operating temperature |
0 to + 40 ° C |
|
Sample volume |
-95% sensitivity within a cylinder of diameter 200mm |
|
Dimensions |
PR2/6: length 1350 mm, 25.4 mm diameter PR2/4: length 750 mm, 25.4 mm diameter |
|
Mass |
PR2/6: 1.2 kg PR2/4: 0.8 kg |
|
Sensor calibrations |
Individual sensors are interchangeable. Recalibration advised every 3 years (depending on use) |
|
Soil calibrations |
Generalised Mineral and Organic soil calibrations are supplied |
|
Housing |
IP67 (when installed in access tube) |
|
Output signal |
Analogue: 0 to 1.0 V differential - PR2/6: x6 outputs, PR2/4: x4 outputs |
|
Optional |
Augering and Extraction Kits – for optimal Access Tube installation Readout unit HH2 |
| Title | Description | Filename |
|---|---|---|
| Datasheet PR2 | PR2_SDI_12_v_2.pdf |
For more information
Although we are working with AMES recently, however we are impresed by the quality, ease of use and stability of AMES products.
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