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

EM121TJ SINGLE PHASE IMPULSE ELECTROMECHANICAL FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM121TJ single phase electromechanical front board installed active energy meter is a kind of single phase two wire active energy meter which is designed and manufactured by our company and developed for adapting townsman using electricity measuring and concentrative management as multiplayer residence and storied buildings and supplying collecting transcription meter system impulse group of formed direct ratio with using electricity quantity. The meter completely accord with relevant technical requirements of class 2 single phase active energy meter stipulated in international standard IEC 62053-11 and standard IEC 62053-31. 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.

Functions and features
● The meter use type EM073 single phase meter as basal meter, and add an impulse occurring device sampling by magnetoelectricity sensor. It has the following function: adjust impulse width, LED impulse output indication, anti-dithering, wide temperature working range (-40-80 ) high reliability and long life, can choose inner placed current as power supply electrical source.
● Front board three fixed installation, the cover is made ABS engineering plastics molded overall has a transparent glass window, the bottom of the meter is made of quality steel which is after double-through antirust processing, and the terminal is made of quality bakelite material which is moisture-resistant, fire-retardant, high temperature molded overall. It has following features: economy benefits, specious appearance, etc.
● Standard configuration the meter adopt double gem bearing, oriented bearing is made of lubrication graphite bush and stainless steel needle. It has following features: long-life and minimal friction, etc. May select magnetic thrust bearing (Product Configuration code is TD)
● Standard configuration 6 digits display by drum wheel mechanical register, may select 5 digits display by drum wheel mechanical register (Product Configuration code is TG).
● Standard configuration without the device which can prevent retrograde, may select add the function of prevent retrograde. (Please specified when ordering).
● Standard configuration one port of pulse output active (polarity), May select increase a distant port of pulse output passive (nonpolarity), contact with all kind of AMR system conveniently, complying with standard IEC 62053-31.
● LED instructions signal of energy impulse (red).
● Single component measure single phase two wire active energy consumption. Complying with standard IEC 62053-11.
● Direct connect operation, there are two types wiring you may select. Standard configuration type 1B wiring, may select type 1A wiring (Product Configuration code is TK).
● Standard configuration short terminals cover, may select extension terminals cover, in order to protect to use safety. (Product Configuration code is UJ).

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Vcc

(mA)

(ms)

(vo)

(1mp/r)

 EM121TJ

Class 2

127
230

5(20)
10(40)
20(80)
30(100)

5VDC

≤10

80±20% or by wrens option ≥0.7Vcc User may select 1, 2, 4 or 8
9VDC ≤10 ≥0.8Vcc
12VDC ≤10
*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
S+ and S- Port of pulse output active