Lora Smart Prepayment Meter , Single Phase Smart Meter With Lora Communication
20(80)A Prepaid Lora Smart Meter with Lora Communication For Single Phase Meter
Single Phase Prepaid smart Energy Meter with Lora Communication
The DDZY150 is used for a wide rang of applications, due to an improved dynamic range allowing a basic current of 5 Amp while retaining a maximum current of 80 Amp and extended functional features. It is a compact and keypad-based design in a BS8565 standard housing and maintains the rugged RF immunity withstand of 30V/m and IP54 rating, allowing it to be installed in harsh environments.
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Nominal voltage Un
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230V
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Limited voltage
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70%~120%Un
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Nominal frequency fn
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50-60Hz
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tolerance
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5%
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Basic current(Ib)
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5A
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Maximum current(Imax)
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80A
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Starting current(Ist)
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20mA
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Active energy constant
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1600imp/kWh
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Main Features
●20 digit (Standard Transfer Specification) STS encryption
●Detection of significant reverse energy (SRE)
●IEC62056-21 compliant optical & RS485 port allowing for easy data interrogation
●Disconnects on overload and no credit
●Prepayment and credit mode hot swap
●Programmable load limit and low credit warning
●Detection and record tamper event such as opening cover, reverse connection, black-out
●Easy access to 12 months historical consumption data and last 5 token entered
AMR/AMI Smart Metering Function (on request)
- Easy connection to User Interface Unit (UIU) for split type applications
- PLC/ RF / GPRS communication with a head-end AMR/AMI server
- Time of Use (TOU) , multi-tariff, holiday setting.
- Advanced load control and disconnection features
Technical Specs of RF Receiver:
| Working voltage | +4.75~5.25V |
| Working frequency | 475~495MHz |
| Frequency stability | ±2.5PPM |
| Working bandwidth | 125KHz |
| Tranmitting power | 17dBm/27dBm |
| Transmitting current | <350mA |
| Receiving sensitivity | -136dBm |
| Receiving current | <60mA |
| Working temperature | -40°C~80°C |
Technical Specs of GPRS module:
| Working frequency | EGSM900/DCS1800MHz |
| Max tranmitting power | EGSM900 Class 4 (2 W) |
| GSM1800 Class 1 (1 W) | |
| Receiving sensitivity | <-106dBm |
| Working voltage | 4.0V |
| Working temperature | -40°C~80°C |
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