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Do variable load carbon pile testers require regular calibration?

Even the best variable load carbon pile testers need calibration on a regular basis. AutoMeter recommends that for optimum operation, carbon pile testers that receive regular usage are calibrated on an annual bases. Analog meters are more susceptible to falling out of specification than digital ones. You can easily verify your calibration by making a comparison with the readings from a known good digital multimeter. Contact AutoMeter at 866-883-8378 for information regarding factory calibration and repair.