Product Introduction
The electricity meter features NB-IoT narrowband IoT wireless communication, offering excellent anti-interference and attack
resistance. It operates reliably over a wide temperature range and maintains long-term stability. The design boasts a simple circuit, high
reliability, and precise measurement accuracy.
Designed in accordance with GB/T17215.321-2021, DL/T645-2007, and Q/GDW1828-2013 standards.
The electricity meter measures single-phase active power and is suitable for users who can realize wireless transmission and control integrated energy management.
Product Features
■The meter has the function of measuring forward, reverse and combined active power; the
combined active power can be selected from forward and reverse active power;
■Time-of-use metering: The meter supports four rates: peak, off-peak, flat, and valley. You can set two annual time zones and at least
14 time periods within 24 hours. The minimum interval of a time period is 15 minutes, and the time period can be set across midnight.
■Measurement function: The meter can measure voltage, current, active power and power factor of the power grid;
■Communication features: The electricity meter supports RS485 and IoT 4G communication.
■Valve control function: When the remote sends the command of trip and close, the built-in switch can
make the corresponding action to realize remote control, and can record the last 10 trip and close events.
Technical Parameter
|
Project |
metric |
Project |
metric |
|
Accuracy class |
Level 2 Active Power / Level A Active Power |
Working temperature |
-25℃~+60℃ |
|
Rated voltage |
220V |
Ultimate temperature |
-40℃~+70℃ |
|
Set operating voltage |
90%Un~110%Un |
Relative humidity |
≤95% (no condensation) |
|
Expand working voltage |
80%Un~115%Un |
Protocol |
DL/T645-2007 |
|
Current Specifications |
5(60)A/0.25-0.5(60)A |
Voltage measurement range |
70%~130%Un |
|
Quiescent dissipation |
≤1.5W/10VA |
Current measurement range |
5%lb~Imax |
|
Frequency range |
(50±2.5)Hz |
Power factor measurement |
5%Ib~Imax |
|
Baud rate |
9600/4800/2400/1200 |
Wattful power measurement |
5%Pb~Pmax |









