Strain gauge amplifier calibrator AB series

high-precisionlaboratory

The Model AB calibrator is a Wheatstone bridge and generates a true change of resistance in one arms of the bridge. It simulates the actual behavior of a strain gage in negative strain calibrator based on the Wheatstone bridge principle requires stable components. Multiple ultra-stable and hi-stable precision resistors are used in the Model AB calibrator to provide the stability, repeatability and accuracy required in a laboratory strain gages instrument. Features • - True Wheatstone bridge circuitry • - Independent model AB-120 for 120Ω, and model AB-350 for 350Ω • - Simulates quarter, half, and full-bridge • - 12 position preset range • - Quarter-bridge strain range direct reading:±200 to ±100 000 με. • - Half and Full-bridge strain range direct reading:±200 to ±100 000 με. • - Transducer range: ±0.2 mV/V to ±100 mV/V • - Reversing switch for plus and minus calibration • - High precision resistors used throughout to • - ensure excellent stability