Japan, Kyowa Electronic Instruments Co., Ltd.
Kyowa BER-A-5MP58S BER-A-58S Wall-surface Soil Pressure Transducer
Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: BER-A-5MP58S
Suitable for the chamber soil pressure of a shield machine, or backfill pressure measurement.
BER-A-12S/58S is an soil pressure transducers of the load cell type designed not to be subject to the influence of a structure bending.These are suitable for surface-of-a-wall soil pressure measurement.ince the 2-model (12, 58) preparations of these are made, they can choose the model united in the installation direction.
Features
●Wear of the pressure sensing surface does not affect output or initial values.
●Load cell-based design is less affected by bending effects.
●This is for granular material pressure measurement whose particle diameter is about φ10.
Specifications
Performance
| Rated capacity | Pressure: 5MPa Load: 20.9kN |
|---|---|
| non-linearity | Within ±1% RO |
| hysteresis | Within ±1% RO |
| Rated output | 1mV/V (2000×10 -6 strain) or more |
Environmental characteristics
| Allowable temperature range | -30～80℃ |
|---|---|
| Temperature compensation range | 0～70℃ |
| Temperature effect on zero | Within ±0.1% RO/°C |
Electrical characteristics
| Allowable applied voltage | 10V AC or DC |
|---|---|
| Recommended applied voltage | 2~5V AC or DC |
| input resistance | 350Ω±2% |
| output resistance | 350Ω±2% |
| cable | 0.5mm2 , 4-conductor shielded chloroprene 30m, outer diameter 9.7mm, tip exposed ( shield is not connected to the main body) |
Mechanical properties
| Allowable overload | 120%* *For 5MP, the allowable overload of pore water pressure (including gas) is 3MPa. |
|---|---|
| Exterior | Pressure-receiving surface: Stainless steel base flange, cable lead-out part: Anti-rust plating |
| Water pressure resistance (cable outlet) | 600 kPa |
| mass | Approximately 3.1 kg (not including cable) |
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