How is calibration achieved? Is there a self-calibration program and is it NBS traceable?
The analog tester has a self calibration program. Calibration consists of taking two external voltage readings when prompted by the auto cal program and all other measurements/calculations are performed automatically. We perform initial factory calibration which is NBS traceable. Calibration constants are stored in a computer file that we provide with the unit. Later calibrations can be performed by you if you have an NBS traceable volt meter. The digital tester is factory calibrated traceable to NBS for all analog functions. Timing and frequency functions are controlled by a crystal oscillator and phase lock loops.
