BS-15CT
Surface-mounting Type Strain Transducer

Summary
For measurement of strain on steel and concrete surfaces.
The BS-15CT surface mounting type strain transducer is developed especially for measurement of strain on steel and concrete surfaces. A temperature measuring function enables simultaneous measurement of strain and temperature. Installed on a pile or steel sheet pile, the rugged design endures vibration initiated by driving the pile.
Features
●Self-temperature compensation type with linear expansion coefficient approximated to that of concrete (11μm/m/℃)
●Large capacity (±2000μm/m), shock- and vibrationresistance, and integrated mounting legs
●Applicable for steel pipe piles, steel pipe laggings, steel sheet piles and hydraulic iron pipes in power stations
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BS-15CT
Rated Capacity: ±2000 ×10-6 strain

Specifications
Performance
Strain Measurement
Rated Capacity | ±2000 ×10-6 strain |
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Nonlinearity | Within ±2% RO |
Hysteresis | Within ±2% RO |
Rated Output | 1.25 to 2.5 mV/V (2500 to 5000 ×10-6 strain) (From minus to plus rated output) |
Temperature Measurement
Rated Capacity | -30 to 70ºC |
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Measurement Error | ±0.5ºC (-30 to 70ºC) |
Environmental Characteristics
Safe Temperature | -30 to 80ºC |
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Compensated Temperature | -20 to 70ºC |
Temperature Effect on Output | Within ±0.05%/ºC |
Electrical Characteristics
Safe Excitation | 10 V AC or DC |
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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 shielded cable, 9.6 mm diameter by 1 m long, bared at the tip (Shield wire is not connected to the case.) |
Mechanical Properties
Instrument Length | 150 mm |
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Safe Overloads | 150% |
Apparent Linear Expansion Coefficient | (11±1)×10-6/ºC |
Weight | Approx. 700 g |
Dimensions
