Calibration standard VREF

10V calibration reference for high level devices. 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: • 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. • Set VREF to 10V and calibrate the full scale extensometer value on the testing machine’s strain channel. This is the calibrated full scale. • 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. • Reconnect the extensometer’s signal conditioner to the testing machine and you’re ready to go.