... device error. The instrument type are the verification: AC/DC voltmeter, ammeter, single/three-phase active, reactive power meter, phase ... synchronous meter, etc. The transmitter type are the verification, AC/DC voltage transducer, current transmitter, single/three-phase active, reactive ... .05 °; Power factor measurement error ±0.0002. Work power AC 220 V±10%, frequency 50 Hz. Use of the environment ...