BJ-AT
Joint Transducer

Summary

The BJ-AT is a joint transducer suitable for checking an opening of concrete blocks at the joint.
Rated Capacity: 5 to 50 mm (Displacement), -30 to 70ºC (Temperature)
Nonlinearity: Within ±1.5% RO
Rated Output: 1 mV/V or more

Features

• Suitable for checking an opening of concrete blocks at the joint or cracks initiated mainly by temperature change
• Also as an ordinary displacement transducer
• For embedment in concrete, the dedicated receptacle CJS-1C is embedded in advance in a preceding block and the joint transducer is
in stalled to the next block.

Products table

All display

BJ-5AT
5 mm

Specifications

Performance
Displacement Measurement
Rated Capacity 5 mm
Nonlinearity Within ±1.5% RO
Hysteresis Within ±1.5% RO
Rated Output 1 mV/V or more, tension: + output
Temperature Measurement
Rated Capacity -30 to 70ºC
Measurement Error ±0.5ºC (-30 to 70ºC)
(When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
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 ±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 120%
Weight Approx. 790 g (Excluding cable)

Dimensions

BJ-AT

BJ-10AT
10 mm

Specifications

Performance
Displacement Measurement
Rated Capacity 10 mm
Nonlinearity Within ±1.5% RO
Hysteresis Within ±1.5% RO
Rated Output 1 mV/V or more, tension: + output
Temperature Measurement
Rated Capacity -30 to 70ºC
Measurement Error ±0.5ºC (-30 to 70ºC)
(When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
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 ±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 120%
Weight Approx. 790 g (Excluding cable)

Dimensions

BJ-AT

BJ-20AT
20 mm

Specifications

Performance
Displacement Measurement
Rated Capacity 20 mm
Nonlinearity Within ±1.5% RO
Hysteresis Within ±1.5% RO
Rated Output 1 mV/V or more, tension: + output
Temperature Measurement
Rated Capacity -30 to 70ºC
Measurement Error ±0.5ºC (-30 to 70ºC)
(When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
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 ±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 120%
Weight Approx. 790 g (Excluding cable)

Dimensions

BJ-AT

BJ-50AT
50 mm

Specifications

Performance
Displacement Measurement
Rated Capacity 50 mm
Nonlinearity Within ±1.5% RO
Hysteresis Within ±1.5% RO
Rated Output 1 mV/V or more, tension: + output
Temperature Measurement
Rated Capacity -30 to 70ºC
Measurement Error ±0.5ºC (-30 to 70ºC)
(When measuring temperatures by using Kyowa's civil engineering transducers with a thermal sensor.)
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 ±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 120%
Weight Approx. 790 g (Excluding cable)

Dimensions

BJ-AT

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