ST350 Strain Transducer

Description

The ST350 Strain Transducer has been designed to quickly and accurately measure strain on a variety of structures in harsh field environments. This 350Ω full Wheatstone bridge strain transducer is very accurate, rugged, and waterproof.   

Providing roughly 3.5 times the output of a typical foil strain gage, these reusable sensors are ideal for measuring live-load strain on structures and can be installed within minutes in all weather conditions. Over 30 years of experience have proven these units to be the gold standard for accurate field measurements. 

Features

  • Cost-effective  
  • Installs in 5 minutes or less  
  • Reusable, lasts for >10 years  
  • Waterproof to 20ft (6 m)  
  • Industrial cable, custom lengths  
  • Standard millivolt output  
  • N.I.S.T traceable calibration  

Aplications

  • Steel
  • Pre-stress/post-tension concrete
  • Reinforced concrete
  • Timber
  • Fiber Reinforced Polymer (FRP)
  • Live-Load testing & monitoring
  • Laboratory testing
  • Fatigue monitoring
  • Tension rod forces

Spesification

MODELST350
CIRCUITFull Wheatstone bridge with 4 active 350Ω strain gages
EXCITATION VOLTAGE+1.0 to +10.0 Vdc
OUTPUTmV level, ratiometric to Excitation Voltage
STRAIN RANGE ±4,000 µε (Calibrated to ±2,000 µε)
TYPICAL SENSITIVITY~500 με/mVout/Vin
ACCURACY1< ±1%
EFFECTIVE GAGE LENGTH3.0 in (76.2 mm) [Gage Extensions available for R/C structures]
HOUSINGMachined 6061 Aluminum Alloy
CORROSION PROTECTIONHard Anodized Clear (MIL-A-8625 Type III)
WEATHER PROTECTIONDesigned to exceed IP67
Optional 100 ft (30 m), waterproofing available
TEMPERATURE RATING2-58° to +176 °F (-50° to +80 °C)

 

1 Accuracy defined at the calibrated ±2,000 µε range.
2 Temperature limit based on instrumentation cable operating temperatures, call BDI for wide temperature range cable options.

Dimensions

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