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HMA-113 LVDT Calibrator w/ Digital Micrometer is a precision fixture fitted with a digital micrometer to verify performance of the linear variable differential transducer (LVDT) used in HM-271 Gilson's Concrete Coefficient of Thermal Expansion Test System. Calibration is required in AASHTO T 336 to determine linearity and repeatability of the LVDT and should be done every six months, or sooner if CTE results are not consistent. Digital micrometer allows for clear and visible reading.
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