BPT-A-80KPS
Soil Moisture Transducer
Summary
This transducer is suitable for measurement of soil moisture absorbing force and proper for management of plant cultivation
The BPT-A-80KPS is a soil moisture transducer designed to measure water pressure in a vessel equipped with a porous cup (porous ceramic tube) and filled with degassed water. If the soil around the embedded porous cup is dry, the soil absorbs water from the vessel via the porous cup. By measuring this negative pressure (water absorbing pressure), the amount of moisture in the soil is obtained. Thus, this transducer is applicable not only to check for possible landslide or grasp the stability of a banking but also to know changing soil moisture and proper irrigation time in plant cultivation.
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BPT-A-80KPS
BPT-A-80KPS
Specifications
Performance
| Rated Capacity | -80 kPa 200 kPa for positive pressure |
|---|---|
| Nonlinearity | Within ±0.5% RO |
| Hysteresis | Within ±0.5% RO |
| Rated Output | Approx. -0.8 mV/V |
Environmental Characteristics
| Safe Temperature | 0 to 80ºC (Non-freezing) |
|---|---|
| Compensated Temperature | 0 to 70ºC (Non-freezing) |
| Temperature Effect on Zero | Within ±0.05% RO/ºC |
| Temperature Effect on Output | Within ±0.05%/ºC |
Electrical Characteristics
| Safe Excitation | 10 V AC or DC |
|---|---|
| Input Resistance | 350 Ω ±2% |
| Output Resistance | 350 Ω ±2% |
| Cable | 4-conductor (0.5 mm2) chloroprene cable, 9.6 mm diameter by 1 m long, bared at the tip (Shield wire is not connected to the case.) |
Mechanical Properties
| Safe Overloads | 100% |
|---|---|
| Materials | Stainless steel metallic finish (Excluding porous cup and level meter) |
| Weight | Approx. 3.5 kg |
Dimensions
To Ensure Safe Usage
The BPT-A-80KPS is delivered with a vessel filled with degassed water. Never store it unused for a long period of time. Embed it upon pur chasing.