Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: BFD-A-41TS
For stress measurement of reinforcing bar
The BFD-A-TS series transducers are designed for stress measurement of reinforcing bars whose nominal diameters are larger than those measured by the BF-CT series. The BFD-A-TS series is used by welding both ends to a reinforcing bar in the field. Select the model suitable for the diameter of the reinforcing bar. Each model provides a temperature measuring function to enable simultaneous measurement of stress and temperature.
Features
●For long-term stable measurement, the transducer proper features a special structure with inert gas filled in.
●The self-temperature-compensated strain gage used for the transducer enables measurement of temperature stress of the reinforcing bar.
Specifications
Performance
Stress Measurement
Rated Capacity |
300 MPa (1 MPa = 1 N/mm2)
(Please contact sales staff about rated capacity for 350 to 400 MPa.) |
Nonlinearity |
Within ±1% RO |
Hysteresis |
Within ±1% RO |
Rated Output |
1.85 mV/V or more |
Temperature Measurement
Rated Capacity |
-30 to 70ºC |
Measurement Error |
±0.5ºC (-30 to 70ºC) |
Environmental Characteristics
Safe Temperature |
-30 to 80ºC |
Compensated Temperature |
-20 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 |
Input Resistance |
350 Ω ±2% at 0ºC |
Output Resistance |
450 Ω ±2% at 0ºC |
Cable |
4-conductor (0.5 mm2) chloroprene cable, 8 mm diameter by 1 m long, bared at the tip |
Mechanical Properties
Safe Overloads |
110% |
Nominal Diameter (Deformed Bar) |
D41 |
Materials |
Metallic finish |
Other
Applicable Reinforcing Bar |
SD345 (Formerly, SD35) |