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DEM321GF |
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PHASE FOUR WIRE ELECTRONIC FRONT BOARD
INSTALLED ACTIVE ENERGY METER |
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Application |
Model
DEM321GF three phase four wire electronic
front board installed active energy meter is
a kind of new style three phase four 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 three
phase four wire AC electricity net, it is
use for setting indoor or out door, and 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.
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Functions and
features |
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Front board three fixed installation, up and
down mounting holes center distance is
198-212 mm, users can choose any one by
themselves.
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May select 6+1 digits display (999999.1kWh,
default) 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
100 imp/kWh, can select). And contact with
all kind of AMR system conveniently,
Complying with standard IEC 62053-31 and DIN
43864.
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Six LED instructions respectively power
supply state and signal of closed energy
impulse and distant energy impulse and data
communication state.
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Automatic detection the direction of the
trend of load current. And Instructions by
individual LED.
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Single direction three components measure
three phase four 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 direct connect
operation, type 16B wiring, we can also
choose another type of wiring, and use CT
(Product
Configuration code is FF) and PT & CT
(Product Configuration code is EF) for
operation, it is type 48B wiring.
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Standard configuration extension terminals
cover, in order to protect to use safety,
may select short terminals cover. (Product
Configuration code is GC). |
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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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DEM321GF |
Class 1 |
3 X 127 / 220
3 X 230 / 400 |
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 16B) |
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Terminal |
Note |
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1 |
Inlet L1 phase |
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3 |
Outgoing L1 phase |
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4 |
Inlet L2 phase |
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6 |
Outgoing L2 phase |
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7 |
Inlet L3 phase |
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9 |
Outgoing L3 phase |
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10 |
Inlet neutral line |
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11 |
Outgoing neutral line |
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16 and 17 |
Port of RS485 data communication |
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18 and 19 |
Port of pulse output passive distant |
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20 and 21 |
Port of pulse output passive closed |
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