Front View
By continuation of previous developments the new COM 1003 / COM 3003 comparator is the new member of the ZERA high precision measuring instrument series.
According to the measuring requirements 2 versions are available:
Single phase instrument COM 1003 or three phase instrument COM 3003. These comparators are common used in metrological institutes but also official test laboratories, power utilities and meters manufactures use this kind of high accurate instruments to perform their traceability to national or international standards.