application

Product use

The DDS238-4 RS48 series single-phase all electronic energy meter adopts a dedicated large-scale integrated circuit, which has the characteristics of anti-theft, high accuracy, high overload, low power consumption, and light weight. Single phase AC active energy with a reference frequency of 50Hz or 60Hz can be measured. The electric energy meter is designed for fixed installation indoors, with an ambient temperature range of -40 ℃ to+70 ℃ and a relative temperature not exceeding 80%. This product complies with all technical requirements for single-phase energy meters in GB/T17215.321-2008 "Special Requirements for AC Measuring Equipment Part 21: Static Active Energy Meters (Class 1 and Class 2)".

TECHNICAL INDEX

Technical index

start

Start

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

shunt running

Defluction

The electric energy meter has an anti submarine logic circuit. When there is no current in the current line and a reference voltage of 115% is applied, the output will not produce more than one pulse within ten times the time it takes to generate one pulse under the starting current.

Load electricityflow	Power factor	error range
		Level 1.0	Level 2.0
0.05Ib≤I<0.1Ib	1.0	Soil 1.5	Soil 2.0
0.1Ib≤I<>< span=''><>	1.0	Soil 1.0	Soil 2.0
0.1Ib≤I<0.2Ib	0.5(L)	Soil 1.5	Soil 2.5
	0.8(C)	Soil 1.5	Soil 2.5
0.2Ib≤I<>< span=''><>	0.5(L)	Soil 1.0	Soil 2.0
	0.8(C)	Soil 1.0	Soil 2.0

External dimensions and installation diagram		Wiring diagram

Technical Parameter

TECHNICAL PARAMETER

In addition, various specifications of electric energy meters can be made according to user needs

Basic error: Ib is the reference current, Imax is the current