Embedded in a boring or together with a pile or steel sheet pile. These transducers measure pore water pressure Recommendable Excitation Voltage. Embedded in a boring or together with a pile or steel sheet pile, BPB-A/BPB-A-T series transducers measure pore water pressures or pore pressures. If desired, they can be used as pressure-based underground water level transducers by installing in a well. Recommendable Excitation Voltage. The BPB-A-T series is provided with temperature measuring function for simultaneous measurement of pore pressure and temperature. The cable length may be changed as specified.
Features
Small-sized design, 30 mm in outer diameter, enables installation in boring of small diameters. Flat filter (10μm mesh standard) is provided to prevent the sensing part from clogging. Stainless steel case (including flat filter FB-10SUS)
Products table
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BPB-A-500KP-T With Temperature Measuring Function, 500 kPa
Specifications
Performance
Pore Pressure Measurement
Rated Capacity
500 kPa
Nonlinearity
Within ±1% RO
Hysteresis
Within ±1% RO
Rated Output
1.0 mV/V or more
Temperature Measurement
Rated Capacity
-30 to 70ºC
Measurement Error
±0.5°C (-30 to 70°C) (When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
Environmental Characteristics
Safe Temperature
-30 to 80ºC (Non-freezing)
Compensated Temperature
0 to 60ºC (Non-freezing)
Temperature Effect on Zero
Within ±0.1% RO/ºC
Temperature Effect on Output
Within ±0.1%/ºC
Electrical Characteristics
Safe Excitation
10 V AC or DC
Recommended Excitation
2 to 10 V AC or DC
Input Resistance
350 Ω ±1% (At 0ºC)
Output Resistance
450 Ω ±0.8% (At 0ºC)
Cable
4-conductor (0.5 mm2) chloroprene cable, 11.5 mm diameter by 1 m long, bared at the tip
Mechanical Properties
Safe Overloads
150%
Weight
Approx. 320 g (Excluding cable)
Dimensions
BPB-A-1MP-T With Temperature Measuring Function, 1 MPa
Specifications
Performance
Pore Pressure Measurement
Rated Capacity
1 MPa
Nonlinearity
Within ±1% RO
Hysteresis
Within ±1% RO
Rated Output
1.0 mV/V or more
Temperature Measurement
Rated Capacity
-30 to 70ºC
Measurement Error
±0.5°C (-30 to 70°C) (When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
Environmental Characteristics
Safe Temperature
-30 to 80ºC (Non-freezing)
Compensated Temperature
0 to 60ºC (Non-freezing)
Temperature Effect on Zero
Within ±0.1% RO/ºC
Temperature Effect on Output
Within ±0.1%/ºC
Electrical Characteristics
Safe Excitation
10 V AC or DC
Recommended Excitation
2 to 10 V AC or DC
Input Resistance
350 Ω ±1% (At 0ºC)
Output Resistance
450 Ω ±0.8% (At 0ºC)
Cable
4-conductor (0.5 mm2) chloroprene cable, 11.5 mm diameter by 1 m long, bared at the tip
