Product use

DDS238-4 RS48 series single-phase full electronic watt-hour meter using a dedicated large-scale integrated circuits, with anti-theft, high accuracy, high overload, low power consumption, light weight and so on. It can measure single-phase AC active energy with reference frequency of 50Hz or 60Hz. Meter for fixed installation indoors, the use of ambient temperature is -40 ℃ ~ +70 ℃, the relative temperature does not exceed 80%. This product complies with GB / T17215.321-2008 «Particular requirements for ac measuring equipment - Part 21: Static watthour meters (Class 1 and Class 2») - All technical requirements for single-phase watt-hour meters.

Technical index

Start

The ammeter can continuously flash when the load current is 0.4% (level 1) or 0.5% (level 2) under the condition of reference voltage, reference frequency and power factor of 1.

Defluction

Meter with anti-submarine logic circuit, when the current circuit is no current, 115% of the reference voltage is applied, the start-up current to produce a pulse of ten times the time measured when the output does not produce more than one pulse.

Load current	Power factor	tolerance scope
		1.0级	2.0级
0.05Ib≤I<0.1Ib	1.0	土1.5	土2.0
0.1Ib≤I	1.0	土1.0	土2.0
0.1Ib≤I<0.2Ib	0.5(L)	土1.5	土2.5
	0.8(C)	土1.5	土2.5
0.2Ib≤I	0.5(L)	土1.0	土2.0
	0.8(C)	土1.0	土2.0

Overall dimensions and installation drawings		Wiring diagram

TECHNICAL PARAMETER