Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: BEF-A-2MP

A pressure-sensing surface 160mm in diameter,used most popularly in measuring fields.
The BEE-A and BEF-A series are soil pressure transducers with an outer diameter of 200 mm which are used most popularly in measuring fields. The BEE-A series for underground soil pressure measurement is embedded in a core zone of a rockfill dam or ordinary banking. The BEE-A series can also measure soil pressure of 3 or 4 face objects. The BEF-A series can be used for soil pressure measurement of a continuous underground earth retaining wall.

Features

●Applied pressure causes minimal diaphragm displacement thanks to a dual diaphragm design.
●Highly accurate displacement ratio of the pressure-sensing surface to its diameter is less than 1/100,000.
●Can measure dynamic soil pressure caused by earthquake, etc.

Specifications

Performance

Rated Capacity	2 MPa
Nonlinearity	Within ±1% RO
Hysteresis	Within ±1% RO
Rated Output	1 mV/V or more

Environmental Characteristics

Safe Temperature	-20 to 80ºC
Compensated Temperature	-15 to 70ºC
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%
Output Resistance	350 Ω ±1%
Cable	4-conductor (0.5 mm2) chloroprene cable, 11.5 mm diameter by 1 m long, bared at the tip

Mechanical Properties

Safe Overloads	120%
Weight	Approx. 5.7 kg

Dimensions