Three Phase STS Prepaid DIN RAIL Electronic Energy Meter
General introduction
RS237DR2 Three Phase STS Prepaid DIN RAIL Electronic Energy Meter
can exchange information based on TOKEN complying with STS, it can
be charged through network or keypad, the meter will automatically
disconnect the load when the credit is low and detect the abnormal
circuit; It adopts DIN RAIL standard, with features of easy
installation, small size and light weight.
Main Function
1) Firmware upgrade
Meter firmware can be upgraded via RS485
2) Communication interface
1 channel RS485
3) TOU
4 tariffs;2 sets of time period tables; 8 time periods can be set
in 24 hours; support public holidays and weekends.
4) Audio and visual alarm
Low credit can be indicated and alarmed via buzzer and LED
5) Friendly power supply
Support emergency credit
6) Events logs(power purchasing, power outage, overload, under
voltage, over voltage, current reverse, etc.)
7) Load control
Relay inside,it can disconnect the load under low credit or
overload
8) Metering and measuring
import, export and total active energy, reactive energy metering;
voltage, current, power and power factor measuring
9) 35mm DIN standard installation complying with DIN EN-50022
Technical specifications
| Items | contents |
| Standards | IEC62052-11; IEC62053-21/23; IEC62055-31/41/51 |
| Accuracy | Active: Class 1; Reactive: Class 2 |
| Protocol | MODBUS |
| Reference voltage | 3*220/380V 3*120/208V |
| Current | Current transformer connection: 5(6)A. Direct connection:10(80)A |
| Reference frequency | 50/60 Hz |
| Power consumption | <1.5W,6VA(per phase) |
| Operation voltage range | 0.8Un~1.2Un |
| Limited operation voltage range | 0.7Un~1.3Un |
| Operation temperature range | -25℃~ +60℃ |
| Limited operation temperature range | -40℃~ +70℃ |
| RTC deviation | ≤0.5 s/d |
| Life time | 15 years |
| Size | 125mm(L)×94mm(W)×65mm(H) |
| Net weight | About 0.62kg |
Q&A
Q: What are the differences between smart energy meter and ordinary
energy meter?
A: Compared with previous energy meters, smart energy meter has the
bidirectional metering function and supports the distributed energy
utilization. it can record the import and the export energy. If the
user is self-built with distributed clean energy generation
facilities, such as wind energy, solar energy, etc., it can realize
to transmit the spare energy to power grid when the generated power
cannot be exhausted, thus achieve energy conservation and
environmental protection to reduce carbon dioxide emissions, create
low carbon life and improve the users' economic benefits.
Our Advantages
Risesun is one of the companies with the most technical influence
and development potential in the electric energy metering
instrument industry of China.and is one of the earliest enterprises
in meter industry forming Three-in-one Management System of
ISO9001:2008, ISO14001: 2004 and OHSAS18001: 2007. With its brand
and other comprehensive advantages,Risesun has been elected as the
director unit of China Instrument and Meter Industry Association,
and the member unit of the national standard revision group of
National Standards Technical Committee for Electrical Measuring
Instruments.Besides, Risesun has already achieved 36 utility model
patents, a number of invention patents and 15 software copyrights.
Several RD projects of Risesun have got the grants and awards from
the provincial and municipal governments in Zhejiang Province.
Today's Risesun, just as a round of Oriental Sun, is rising and
creating greater glories with the help of the national macroscopic
policy good solution and its research and development potential.
