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DEN021AA |
| TWO
PHASE THREE WIRE ELECTRONIC DIN-RAIL ACTIVE
ENERGY METER |
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Application |
Model
DEM021AA 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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Type S wiring (Inlet from bottom, outlet
from top), use CT connect operation, may
select set 27 ratio, after set the meter
will direct reading when read, and haven¡¯t
multiplied by rate of CT.
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Seven digits display LCD, 5+2 digits display
(99999.91 kWh, only ratio of CT when 5:5 A)
or 7digits, it is choose by ratio of CT
which is set.
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There are a polarity port of pulse output
passive closed and a no polarity port of
pulse output passive distant (the output
rate is 10 kWh/pulse), ). Complying with
standard IEC 62053-31 and DIN 43864.
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Standard configuration there are a port of
far infrared data communication and a port
of RS485 data communication. Communication
agreement complying with standard
DL/T645-1997, can also choose without
function of data communication. (Product
Configuration code is NA).
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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 LCD
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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 short terminals
cover, may select extension terminals cover,
in order to protect to use safety. (Product
Configuration code is AD). |
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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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DEM021AA |
Class 1 |
2 x 127
2 x 230 |
CT/ 5A |
0.01 |
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 CT |
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L2 |
Don't use |
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L3 |
L3 phase CT |
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(Inlet from bottom, outlet from top) |
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7 and 8 |
Port of pulse output passive closed |
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3 and 4 |
Port of pulse output passive distant |
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9 |
L1 phase line |
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11 |
Neutral line |
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13 |
L3 phase line |
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N |
Don't use |
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5 and 6 |
Port of RS485 data communication |
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1 and 2 |
Port of CT ratio which is set |
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