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  • Model 1550B Strain Indicator Calibrator
  • A true Wheatstone-bridge simulator, the 1550B Strain Indicator Calibrator presents known and repeatable resistance changes to the input of the indicator. Three decades of push buttons are used to produce incremental resistance changes. The 1550B is NIST-traceable.

  • True Wheatstone bridge circuitry
    Simulates 120- and 350-ohm quarter, half and full bridges
    Strain range of ±99 000 microstrain in 100 microstrain increments
    Transducer range of ±49.95 mV/V in 0.05 mV/V increments
    Reverse switching for plus and minus calibration
    High precision Vishay resistors used throughout
    Accuracy of 0.025%, NIST traceable