YTL DC meter DEM2D series 75mV Din-Rail 1P 2W Double Channels CE RoHS Electricity Meter

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DEM2D Series is DC metering device that uses shunt sampling. Support RS485 communication, DLT 645/MODBUS protocol. Rail-mounted installation has the characteristics of good reliability, small size, beautiful appearance, and convenient installation.

TechnicalParameters
Description
ConnectlonDiagram
MeterDimensions
ImpulseConnection

Type	DEM2D002	DEM2D102	DEM2D003	DEM2D103
Voltage input:	DC 5V~1000V	DC 5V~1000V	DC 5V~1000V	DC 5V~1000V
Auxiliary power supply	85~300V AC or 85-300V DC	85~300V AC or 85-300V DC	DC 9-60V	DC 9-60V
Current:	Shunt connection method, the primary side current supports up to 2000A Connection signal :75mV	Shunt connection method, the primary side current supports up to 2000A Connection signal :75mV	Shunt connection method, the primary side current supports up to 2000A Connection signal :75mV	Shunt connection method, the primary side current supports up to 2000A Connection signal :75mV
Accuracy current:	0.5%	0.5%	0.5%	0.5%
Voltage Accuracy	0.5%	0.5%	0.5%	0.5%
Active Power Accuracy	1.0%	1.0%	1.0%	1.0%
Active Accuracy	Class 1.0	Class 1.0	Class 1.0	Class 1.0
Constant:	According to 1000imp/kWh, 1.2 times the maximum voltage and current, the pulse width is 1.2ms, corresponding to the current setting	According to 1000imp/kWh, 1.2 times the maximum voltage and current, the pulse width is 1.2ms, corresponding to the current setting	According to 1000imp/kWh, 1.2 times the maximum voltage and current, the pulse width is 1.2ms, corresponding to the current setting	According to 1000imp/kWh, 1.2 times the maximum voltage and current, the pulse width is 1.2ms, corresponding to the current setting
LCD:	LCD 6+2	LCD 6+2	LCD 6+2	LCD 6+2
Consumption:	≤8VA ≤0.4W	≤8VA ≤0.4W	≤8VA ≤0.4W	≤8VA ≤0.4W
Temperature:	-25～70℃	-25～70℃	-25～70℃	-25～70℃
Humidity:	≤95%	≤95%	≤95%	≤95%
AC withstand voltage	4400V/min	4400V/min	4400V/min	4400V/min
Impulse withstand voltage	6.4kV - 1.2/50µS waveform	6.4kV - 1.2/50µS waveform	6.4kV - 1.2/50µS waveform	6.4kV - 1.2/50µS waveform
Battery	YES	NO	YES	NO
Muti-tariff	YES	NO	YES	NO
Relay	YES	NO	YES	NO

● RS485 communication: used for parameter setting, data reading; DTL645 protocol/Modbus Protocol

● DC metering: using shunt sampling, high measurement accuracy; can measure DC power, current, voltage,

● Alarm function: Over-current alarm: When the current exceeds the CT1 value set by the meter, an alarm event occurs, and the alarm light on the electrical surface panel lights up (yellow light),

At the same time, the value of the corresponding alarm status register will change, and the user can read this register through communication to determine whether an over-current alarm has occurred.

● Display: LCD with backlight ,Support Various parameters display,energy data and Instantaneous parameters

● Firmware upgrade: RS485 local upgrade
Height   90mm

Width   36mm

Depth   73mm
The installation of the energy meter requires an experienced electrician or professional and

confirms that this user guide has been read;

During the installation process, if the casing is obviously damaged due to severe impact or

falling, please do not install, power on, and contact us in time;

The electric energy meter has passed the inspection before leaving the factory and is sealed

with lead. It can be installed directly.

The energy meter should be installed in an indoor or outdoor meter box. The mounting

base should be fixed on a solid refractory wall with no corrosive gas in the air;

The energy meter should be wired according to the wiring diagram on the terminal box,

preferably with copper wire or copper terminal.

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