A portable time totalizer calibration system where a calibration stop watch (accurate upto 0.1 sec) is fitted. Circuit and connection of stopwatch are designed such that Time Totalizer and reference master Stop Watch can be started or stopped simultaneously using provided switches. By comparison method calibration of Time Totalizer can be done for desired period of Time in field as intermediate checks.

The stop watch fitted in this setup having calibration certificate from NABL accredited in house facility of Ecotech supplied system provision of TTR fitting with operational switches, fuses and power indicator and mains chord are existing. Data sheet are provided so that checking is possible in a field also.