25 Year OEM,ODM$OBM Special Circuit Break Manufactory In China
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APPLICATION

EM471UA SINGLE PHASE ELECTRONIC MULTI-RATE PREPAYMENT FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM471UA single phase electronic multi-rate prepayment front board installed active energy meter is a kind of single phase two wire active energy meter which purchase electricity by IC card, electric energy measuring, three tariffs (time-sharing billing), ladder rate, load control and using electricity management. The meter completely accord with relevant technical requirements of class 1 single phase active energy meter stipulated in international standard IEC 62053-21. It can accurate and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net, it is use for setting indoor or out door meter box. This meter has 7 digits LCD displays shows various consumption data and information. And there is far infrared communication module in it, can read the meter and set the system parameters conveniently. It has following features: good reliability, light weight, specious nice appearance, convenient installation, etc.

Functions and features
● Payment by money, standard configuration one meter one card, can repeat input money from PC machinery which with IC programmer.
● Have three tariffs, may select 4 time area, every time area can set 12 daily period, every time area has one rate, every rate can set three unit price.
● It has IC card with code and data against false, standard configuration use storage IC card, may select logic encryption card (Product Configuration code is UE) or non-contact RF card. (Product Configuration code is UI)
● Standard configuration of the prepayment management system use of single version, may select network version. (Please specified when ordering).
● 7 digits LCD digits display cycle, we can set the cycle display, it can display 8data at most. Can select the data which displayed.
● There are a clock and Maintenance-free backup lithium batteries in it, battery capacity real-time detection and display.
● There is a port of far infrared, it is use for set and reading the meter and check the clock. Set and operation have password protection, communication agreement complying with standard DL/T645-1997.
● It has load control and function of automatic fault detection and instructions, with function of open terminals cover and detection and open terminals cover and cut power.
● A port of pulse output passive closed (polarity), complying with standard IEC 62053-31 and standard DIN 43864.
● Six LED instructions power supply state, signal of energy impulse, the direction of the flow of load current, and the state rates just now.
● Single direction single component measurement single phase two wire active energy consumption. It is nothing with direction of the flow of load current. Complying with standard IEC 62053-21.
● Direct connect operation, there are two types you may select. Standard configuration type 1B wiring, may select type 1A wiring (Product Configuration code is UB).
● Front board three fixed installation, standard configuration extension terminals cover, in order to protect to use safety, may select short terminals cover. (Product Configuration code is UC).

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Starting
current (A)

Insulation
performance

 EM471UA

Class 1

127
230

5(30)
10(60)
20(100)

0.02
0.04
0.08

AC voltage 4kV for 1 minute,
1.2/50us waveform
impulse voltage 6kV

*If you need different reference voltage or current specification, please advisory our sales.

Outer and mount dimension

Wiring diagram (Type 1B)

Terminal

 Note

1 Inlet phase line
3 Outgoing phase line
4 Inlet neutral line
5 Outgoing neutral line
2 and 5 Port of pulse output passive closed