Japan, Kyowa Electronic Instruments Co., Ltd.
Kyowa BF-29CT BF-CT Reinforcing-bar Stress Transducer
Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: BF-29CT
For stress measurement of reinforcing bar
The BF-CT series stress transducers are designed for stress measurement by welding both ends to a reinforcing bar in the field. They are available in various models for selection according to diameters of the reinforcing bars. 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 the temperature stress of the reinforcing bar.
Specifications
Performance
Stress Measurement
| Rated Capacity | 300 MPa (1 MPa = 1 N/mm2) |
|---|---|
| Nonlinearity | Within ±1% RO |
| Hysteresis | Within ±1.5% 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 ±0.05% RO/ºC |
| Temperature Effect on Output | Within ±0.05%/ºC |
Electrical Characteristics
| Safe Excitation | 10 V AC or DC |
|---|---|
| Recommended Excitation | 2 to 10 V AC or DC |
| Input Resistance | 350 Ω ±2% at 0ºC |
| Output Resistance | 450 Ω ±1.6% 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) | D29 |
| Weight | Approx. 5.3 kg |
Other
| Applicable Reinforcing Bar | SD345 (Formerly, SD35) |
|---|
Dimensions
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