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Smart Single phase STS Split type keypad prepaid meter DDSY168-S
The Smart DDSY168-S is a dual power source measuring , split type prepayment electricity meter, completed in BS footprint housing working with a separate dispay and keypad unit (UIU / CIU). It is an ideal revenue protection metering tool that can measure grid power and any other alternative power with no need to add extra components . In duall prepaid mode, the meter can auto decrypt the recharge code from source and top up into separate balance .
Major Featureso
- 20 digit (Standard Transfer Specification) STS encryption
- Detection of significant reverse energy (SRE)
- IEC62056-21 compliant port allowing for easy data interrogation
- Disconnects on overload and no credit
- Operate in both prepayment and credit mode hot swap
- Programmable load limit and low credit warning
- Detection and record tamper event such as cover open, reversal, black-out, etc.
Split Configuration for Increased Revenue Protection
the meter consists of two parts, the MCU (Meteriing & Control Unit) and UIU (User Interface Unit). The MCU and UIU is linked via galvanically- isolated 2 -wire communication cable Power line carrier (PLC) and Radio Frequency (RF) communication module is also aviable on request. The UIU is installed within consumer's home, while MCU is installed in a meter cabinet away from consumers.
Utility benefit
- Easy connection to User Interface Unit (UIU) for split type applications
- RF / GPRS wireless communication with a head-end AMR/AMI server
- Time of Use (TOU), multi-tariff, holiday setting.
- Advanced load control and disconnection features
Specifications:
| Nominal voltage Un | 220/230/240 V |
| Limited voltage | 70%~120%Un |
| Nominal frequency fn | 50-60Hz+5% |
| Basic current(Ib) | 5-10A |
| Maximum current(Imax) | 60-100A |
| Starting current(Ist) | 20mA |
| Active energy constant | 1000imp/kWh |
| Accuracy as Active energy to IEC62053‐21 | Class1.0 |
| Power consumption in Voltage circuit | <2W <8VA |
| Power consumption in current circuit | <1VA |
| Operating temperature | 25℃ to+70℃ |
| Storage temperature | 40℃ to+85℃ |
| Insulation level | 4kV rms for 1min |
| Impulse voltage withstand | 8kV, 1.2/50 μs |
| Air discharge | 16kV |
| Immunity to HF fields | |
| 80MHz to 2GHz with load | 10V/m |
| 100kHz to 1GHz without load | 30V/m |
| Fast transient burst test | 4kV |
| Meter shell Protection Rate | IP54(IEC60529) |
| Insulation System Classification | Protective Class II |
