Eastron Sem1-Wl-2L Wi-Fi Remote Monitoring Solar Energy Monitor Two Channel Measurement Single Phase Bi-Directional Energy Meter

Customization: Available
Warranty: 2 Years
Display: Display on EMC

Product Description

Basic Information

Model NO.
SEM1-WL-2L
Installation
DIN Rail Mounting
Usage
Multi-Functional Energy Meter, Solar PV Metering
Electric Equipment
1p2w
Theory
Electronic Meter
Type
Energy Meter
Certification
CE
Accuracy
Class 1 / Class B
Max. Current
120A
Voltage Range
100-277 V AC (L-N)
Communication
Wi-Fi & RS485 Modbus RTU
HS Code
9030390000

Product Description

Energy Monitor Banner

The SEM1 Series is a new generation din rail mounted energy meter, equipped with Wi-Fi and RS485 connectivity. With multi parameters measurement, this energy meter can be used for energy monitoring of various applications, such as PV energy management, smart building, industrial equipment, etc.

It measures characteristics of 1P2W network, including voltage, frequency, current, power, active and reactive energy, imported or exported, power factor etc. Energy is measured in kWh and kVArh.

Product View 1
Product View 2

Designed in a compact size to save installation and maintenance cost, all terminals adopt spring terminals or RJ terminals for easy connection. The measurement mode is total mode, where import and export energy are measured separately.

Product Characteristics

Characteristics Diagram
  • Multi-parameter measurements
  • Accuracy Class 1 active energy
  • Two channels measurement
  • Wi-Fi available
  • RS485 Modbus RTU
  • Bi-directional measurement
  • Easy connection solution
  • Compact design

Technical Specification

Electrical Characteristics
Type of Measurement RMS
Measurement Accuracy Active/Reactive Energy Class 1 IEC 61557-12
Power / Voltage ± 1% / ±0.5%
Frequency ±0.2%
Current ± 0.5% (4A to 120A)
Data Update Rate Active Power: 50mS (RS485), 100mS (Wi-Fi)
Voltage Range 100~277 V AC (L-N), 50/60Hz
Communications
Interface 1 RS485 Port (Modbus RTU)
Transmission Speed 2400 to 115200bps (9600 Default)
Response Time <50 mS
Interface 2 Wi-Fi (Modbus TCP)
Wi-Fi Protocol 802.11 b/g/n (2.4 GHz)
Wi-Fi Range Up to 30m indoors / 50m outdoors

Application

Application Wiring Diagram

Manufacturer Profile

Factory Facility
R&D Center

The manufacturer is a leading high-tech enterprise of electricity products and energy measurement solutions. Over the years, a wide range of electricity meters, sensors, communication modules, and management systems have been developed.

With professional labs performing EMC, LVD, and accuracy tests according to IEC, EN, and UL standards, the company holds over 280 patents and operates under ISO 9001. Products and services are provided to more than 50 countries globally, ensuring high quality and innovative solutions for energy management.

Frequently Asked Questions

Q: Can I ask for samples?
A: Yes, for sample orders, please order from our online shop.
Q: What's the warranty of your products?
A: All products have a two-year warranty.
Q: What's the lead time?
A: Depend on the quantity and model of the order, normally it takes around 10-15 days, but the exact lead time should be discussed with our sales.
Q: Where can I get a user manual?
A: User manual can be downloaded from our official website.
Q: Do you have software?
A: We offer simple software for testing, you can get it from our online shop.
Q: Can you offer Modbus protocol instruction / Modbus register map?
A: Yes, we have these available. Please contact us for the documentation.

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