FIELD: instrument engineering. SUBSTANCE: meter has sensitive system disposed in the case. The system has weight made in form of a permanent magnet, magnetic circuit and pole tip and suspended inside the case by means of guide springs and screw spring. Top end of the screw spring is mounted for movement along vertical line. The weight is provided with strength detector. Winding of the detector is connected to DC supply. Weight also has displacement detector which has output connected with displacement pointer. Output of the pointer has to be output of the meter. Case of the sensitive system is mounted for vertical displacement. EFFECT: improved reliability of operation. 1 dwg
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