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1.Application
The series single phase meter is a kind of induction meter to measure the single phase current at the rated frequency of 50Hz. It is an indoor installed meter. Ambient temperature: 10°C to 50°C, relative humidity: below 85% (25°C). DT8 and DT862 series three-phase meter is an induction meter to measure the three-phase current at the rated frequency (50Hz). It is an indoor installed meter; Ambient temperature: -10°C to 50°C, except the first grade is under the working condition of 0 to 40°C. Relative humidity: below 85% (25°C).

2.Specification

Item	Type	Accuracy	R.V.	Calibration (A)	Manner
singlephase watt-meter	DD862-4	2	220	2.5(10)5(20)10(40) 15(60)20(80) 30(100)	direct connction connection with
	DD862-2			1.5(6)	current transformer
	DD282 DD28			3(6)
				2(4)2.5(5)3(6)5(10)	direct connection
				10(20)20(40)30(60)
				40(80)5(20)10(40)
three phase four-wire watt meter	DT862-4	2	3x380/220	5(20)10(40)15(60) 20(80)3(100)	direct connection
	DT862-2			1.5(6)	connection with current transformer
	DT8			3(6)
				10.25.40.80	direct connection