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DEM421AC
Three phase Four wire electronic Din-Rail Active and Integration Energy Meter |
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Application |
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Model
DEM421AC three phase four wire electronic DIN rail active and
reactive integration 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 and class 2
three phase
reactive energy meter stipulated in international standard IEC 62053-23.
It can accurately and directly
measure 50Hz or
60Hz active energy consumption from three phase four wire AC electricity
net, it can display total
energy consumption
by step type impulse register. This meter has seven digits LCD monitors
shows active power. 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 Chinese national 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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Function and features: |
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-- 35mm
standard DIN rail installation , complying with standard DIN
EN50022. Or front
board setting (mounting holes center
distance 63 mm), users can choose any one by
themselves.
--Ten
pole width (Modulus 12.5mm), complying with standard JB/T7121-1993.
--Type
S connection (Inlet from bottom, outlet from top), use CT connect
operation, may
select 27 CT ratio, the meter will
read directly after set, and needn t multiplied by CT rate.
--7
digits LCD display, 5+2 digits(99999.91kWh Only when CT ratio 5:5A)
or 7 digits display.
It is choose by the CT ratio
which is set.
--Standard
configuration one port of active pulse output passive and one port
of reactive
pulse output passive (polarity)
The output rate are 0.01, 0.1, 1, 10kWh or kvarh/Pulse.
Users can choose any one by themselves. May
select
one port of active pulse output
passive and one port of reactive pulse output passive
(no polarity). And contact with
all
kind of AMR system conveniently complying with standard
IEC 62053-31 and DIN 43864.
(Please specified when
ordering)
--Standard
configuration there are far infrared and a port of RS485
communication data,
communication protelot complying
with standard DL/T645-1997. May select without
function of communication data. (Product Configuration
code
is NC)
--Six
LED instructions power state and signal of active power impulse and
reactive power
impulse and data communications state.
--Automatic
detection the direction of the trend of load current. And
instructions by one LED.
--Single
direct three components measure three phase four wire active Power
consumption.
It is nothing with direction of
the trend of load current. Complying with standard IEC
62053-21and IEC 62053-23.
--Standard
configuration extended terminals cover, may select short terminals
cover, in
order to protect to use electricity
safely. (Product Configuration code is AF). |
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DEM421AC Three phase
Four wire electronic Din-Rail Active and Integration Energy Meter
Technical parameters: |
| Model |
Accuracy |
Reference voltage(V) |
Current
specifications
(A) |
Starting Current |
Insulation
Performance |
| DEM421AC |
Class 1 |
3 x 170/220
3 x 230/400
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CT/5A |
0.01 |
AC voltage 4kV for 1
minute,1.2/50us waveform impulse
voltage 6kV |
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DEM421AC Three phase Four wire electronic Din-Rail Active and Integration Energy Meter
Outer and mount dimension: |
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DEM421AC Three phase Four wire electronic Din-Rail Active and Integration Energy Meter
Wiring diagram(Type S) |
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