Like the shunt calibration module for strain gaged extensometers, the VREF module is used to transfer Epsilon’s calibration to a customer’s electronics.
Calibration only requires these simple steps:
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With the VREF module connected to the testing machine’s strain channel input, set VREF to 0V and zero the testing machine’s strain channel. This is the zero reference.
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Set VREF to 10V and calibrate the full scale extensometer value on the testing machine’s strain channel. This is the calibrated full scale.
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If your testing machine requires returning to 0V after setting full scale, set VREF back to 0V and zero the testing machine’s strain channel.
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Reconnect the extensometer’s signal conditioner to the testing machine and you’re ready to go.