PRODUCTS & SERVICE
STS Prepayment Energy Meter
Single-phase Integrated STS Energy Meter
Single phase STS Prepaid keypad Energy Meter

 

DDSY283 integrated single phase keypad prepayment meter is the latest one-way prepayment meter according to IEC 62053-21 and IEC 62055-31/41/51. The data transmitting is according to Standard Transfer Specification (STS), the meter case is IP54 enable it suitable for tropical using. Furthermore, the meter is wide current measurement designing, and the maximum current can be 100(A) when the basic current Ib is 5(A). The meter also has terminal cover opening anti-tamer function to ensure the security of the meter.


 

Item

Parameter

Basic Parameter

Meter Type

Single Phase Two Wire

Accuracy (kWh)

Class B (EN 50470-3) or Class 1 (IEC 62053-21)

Basic current Ib

5A, 10A, 15A, 20A

Maximum current Imax

40A, 60A, 80A, 100A

Minimum current

0.05Ib

Starting current

<=0.004Ib(Direct Connection)

Rated voltage Un

220V,230 V,240V

operating voltage range

0.7Un~1.2Un

operating frequency

50Hz/60Hz

Relay

1 Main contactor(100A);

Backup battery

Battery can be replaced

Pulse constant

1000~10000 imp/kWh

Power consumption

Current circuit power consumption<=2.2VA
Voltage circuit power consumption<=1.8W/10VA

Operating temperature range

--25℃ ~ +70℃

Storage temperature

-40℃ ~ +85℃

RTC

RTC

<=0.5s/day (normal temperature)

RTC support

10 years battery operation life
operating for at least 2 years in case of any power failure

EMC

Compression strength

4kV, 50Hz, 1 minute

Anti-surge
voltage
current

6kV, 1.2/50µs
5kA, 8/20µs

Immunity to short-circuit current

30Imax

Immunity to electrical fast
transients/bursts (EFTB)

4 kV (IEC 61000-4-4)

Communication

Communication interface

1 circuit optical interface;
1 circuit RS485 or PLC(Option);

Communication Protocol

Local: IEC62056-21
Remote: DLMS HDLC or IEC62056-21

Prepayment

Keypad

3X4 Membrane keypad

Prepayment Function

Compatible IEC62055-51, STS Standard

Parameter

Dimensions(LxWxH)

211mmx130mmx68.6mm

Weight

Approx. 0.9kg


 

1. Measurement

  • Import/Export active energy 

  • Instantaneous value measurement


2. Anti-tamper Function

  • Meter Cover open detection and record

  • Meter terminal open detection and record

  • Current reverse detection

  • Large magnetic detection


3.  Event record

  • Anti-tamper detection event

  • Power on/off event


4. Prepayment

  • local keypad credit charging, through 20-digit token.

  • Protocol Compatible to IEC62055-51, STS Standard


5. Communication 

  • 1 Optical interface/1 RS485 or PLC(Option);

  • Protocol compatible to (Local)IEC62056-21 and (Remote)DLMS HDLC or     IEC62056-21;