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.
Products table
All display
BFD-A-35TS Nominal Diameter (Deformed Bar): D35
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)
D35
Materials
Metallic finish
Other
Applicable Reinforcing Bar
SD345 (Formerly, SD35)
Dimensions
BFD-A-38TS Nominal Diameter (Deformed Bar): D38
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)
D38
Materials
Metallic finish
Other
Applicable Reinforcing Bar
SD345 (Formerly, SD35)
Dimensions
BFD-A-41TS Nominal Diameter (Deformed Bar): D41
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)
Dimensions
BFD-A-51TS Nominal Diameter (Deformed Bar): D51
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
-10 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)
D51
Materials
Metallic finish
Other
Applicable Reinforcing Bar
SD345 (Formerly, SD35)
Reinforcing-Bar
Please provide reinforcing-bar for BFD-A-51TS to Kyowa.2 pieces x 335 mm long
Calibration
The BFD-A-51TS is calibrated by applying to a single sensing section, compressive load (approx. 600 kN) equivalent to the rated capacity of 300 MPa and compressive load (approx. 670 kN) equivalent to the safe overload rating.
