FIELD: electric measurement technology. SUBSTANCE: instrument has gas-discharge display panel with top and bottom columns, pulse distributor, two anode-voltage shapers, clock generator, pulse counter, sawtooth-voltage generator, two OR gates, voltage comparator, AND gate, adder, two switches, reference-voltage source, two current comparators, instrument input, EXCLUSIVE OR gate. EFFECT: improved measurement accuracy due to introduction of additional section in measurement range on which high reading accuracy can be obtained. 5 dwg
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