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DEM021GA |
| THREE
PHASE FOUR WIRE ELECTRONIC DIN-RAIL ACTIVE
ENERGY METER |
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Application |
Model
DEM021GA two phase three wire electronic DIN
rail active energy meter is a kind of new
style two phase three wire active energy
meter, it adopt micro-electronics technique,
and imported large scale integrate circuit,
use advanced technique of digital and SMT
techniques, etc. The meter completely accord
with relevant technical requirements of
class 1 three phase active energy meter
stipulated in international standard IEC
62053-21. It can accurate and directly
measure 50Hz or 60Hz active energy
consumption from two phase three wire AC
electricity net. This meter has seven digits
LCD displays shows the active
energy consumption. And there are far
infrared and RS485 communication module in
it. Contact with all kind of AMR system
conveniently It has following features: good
reliability, small volume, light weight,
specious nice appearance, convenient
installation, etc. This meter has already
got the patent certificate from China State
Intellectual Property Office at present.
Patent certificate NO. ZL 2006 3 0107349.1,
any other country patent certificate are in
assessing.
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Functions and
features |
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35mm standard DIN rail installation,
complying with standard DIN EN50022. Or
front board installed (mounting holes center
distance 63 mm), users can choose any one by
themselves.
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Ten pole width (Modulus 12.5mm), complying
with standard JB/T7121-1993.
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May select 6+1 digits display (999999.1kWh)
or 5+2 digits display, it can be arbitrary
set by users from far infrared or port of
RS485 data communication.
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There are a polarity port of pulse output
passive closed and a nonpolarity port of
pulse output passive distant (the output
rate is 10 or 100imp/kWh, can select).
Complying with standard IEC 62053-31 and DIN
43864.
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There are a port of far infrared data
communication and a port of RS485 data
communication. Standard configuration
communication agreement complying with
standard DL/T645-1997, can also choose any
other communication agreement.
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Five LED instructions respectively power
supply state (phase voltage L1 & L3), signal
of closed energy impulse and distant energy
impulse and data communication state.
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Automatic detection the direction of the
flow of load current. And Instructions on
individual LED
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Single direction two components measure two
phase three wire active energy consumption.
It is nothing with direction of the flow of
load current. Complying with standard IEC
62053-21.
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Standard configuration type S wiring (Inlet
from bottom, outlet from top) for direct
connect operation, we can also choose
another type of wiring, and use CT (Product
Configuration code is FA) and PT & CT
(Product Configuration code is EA) for
operation.
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Standard configuration short terminals
cover, may select extension terminals cover,
in order to protect to use safety. (Product
Configuration code is GD). |
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Technical
parameters |
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Model |
Accuracy |
Reference
voltage (V) |
Current
specifications (A) |
Starting
current (A) |
Insulation
performance |
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DEM021GA |
Class 1 |
2 x 127
2 x 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. |
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Outer and mount
dimension |
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Wiring diagram
(Type S) |
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Terminal |
Note |
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L1 |
L1 phase line |
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L2 |
Don't use |
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L3 |
L3 phase line |
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N |
Neutral line |
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7 and 8 |
Port of pulse output passive closed |
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5 and 6 |
Port of RS485 data communication |
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3 and 4 |
Port of pulse output passive distant |
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