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EM524021 is a 3-phase 4-wire STS compliant meter which also comply with DLMS/COSEM protocol.
It support IR, RS485,Plug-in and Play GPRS-2/3/4G communication. RF (Radio Frequency) communication
between MCU and IHD( in-home display). The sts meter has all the functions of prepaid meter. Prepaid meter means that the user buys electricity first and then uses it.The main features are:
10(100A), 3*230V Directional Connected
Active & Reactive Measurement, Cl1.0, Reactive Cl2.0
IR,RS485,Plug in& Play-2G/3G/4G (DLMS Protocol)
RF Communication (MCU & IHD)
Support LCD, Keypad,MD, Anti-tamper, Multi-tariff
High-energy Advanced series E2
High surge current ratings up to 10 kA
Wide operating voltage range 130 … 1000 V RMS
With an internal Bipolar bi-stable latching relay load switch. Standard grade: UC2 (IEC62055-31).
a latch status LED indicator
Comply with:
SANS 1524 -1: electricity payment system
IEC62052 - 11: Electricity metering equipment ,(AC) - General requirements, tests and test conditions Part 11: Metering equipment
IEC62053 - 21: Electricity metering equipment (a.c.) Part 21: Static meters for active energy (classes 1 and 2)
IEC62055 - 31: Electricity metering - Payment systems
Part 31: Particular requirements - Static payment meters for active energy (classes 1 and 2)
IEC62055 - 41: Electricity metering - Payment systems
Part 41: Standard transfer specification
(STS) - Application layer protocol for one-way token carrier systems
IEC62056 - 21: Electricity metering - Data exchange
for meter reading, tariff and load control,Part 21: Direct local data exchange
ISO 14001: Environmental Management Systems
ISO 9001: Quality Management System
LCD Display
Displays remaining credit in kWh's
Indication of token acceptation
Indication of token rejection (Used/Duplicate/Invalid token)
Display negative credit
Low credit indication warning
Overload indication warning
Indication of Tamper status
Existence of short codes for displaying the following:
Keypad test / display test
Total user consumption to date
Power limit level
user consumption history (Last 24 hours, Last 30 days)
Meter serial number
Supply Group Code, tariff index and key revision number
Last 20-digit token information
current consumption
Phase Voltage
Phase Current
Phase Active Power
Phase Power Factor
Balance Credit
The last 10 trips date/time and reason of the trip
The last 10 events date/time with their reasons
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| Type |
EM524021 3P4W STS IR RS485 GPRS RF Suspension Meter with In-home Display |
| Ref. Voltage |
3*230VAC |
| Ref.Current |
10(100)A |
| Impulse Constant |
800imp/kWh,800imp/kvarh |
| LCD Display |
Backlight Display |
| Min. Starting Current |
Class 1: 40mA
Class 2: 50mA |
| Frequency Band |
50Hz |
| Accuracy Class |
Active Cl1.0, Reactive Cl2.0 |
| Function |
Multi-tariff, Max Demand, Load Control,Alarming |
| Ref. Standard |
IEC62052-11,IEC62053-21,IEC62056-46,
IEC62056-61,IEC62053-61 |
| Anti-tamper |
Top-cover Open, Terminal-cover Open,
Communication Module Cover Open, Anti-magnetic field |
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Cautions:
1.About AC/DC Energy Meter
(1) AC or DC- Generally speaking alternating current or direct current shall be the first factor.
(2) We also have DC meter when you need to measure the Direct Current.
2.About Function
(1) As the content is limited, all functions mentioned above are the main functions
(2) Other functions such as TOU, load control, friendly hours,RTC, plz refer to the technical specification or contact with our sales team.
3.About Application
(1) The applications only for examples, for the pratical situation the energy meter can also be used for other applications.
(2) Welcome to inquiry if you are not sure about the functions or application, we have free technical support.
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