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| Brand Name : | Radarking | 
| Model Number : | DDZY150 | 
| Certification : | IEC62053-21; IEC62052-11; IEC62056-21 | 
| Price : | Negotiate | 
| Payment Terms : | Western Union, T/T, L/C, MoneyGram | 
| Supply Ability : | 5000000 pcs per year | 
| Delivery Time : | 35days | 
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.
| Nominal voltage Un | 230V | 
| Limited voltage | 70%~120%Un | 
| Nominal frequency fn | 50-60Hz | 
| tolerance | 5% | 
| Basic current(Ib) | 5A | 
| Maximum current(Imax) | 80A | 
| Starting current(Ist) | 20mA | 
| Active energy constant | 1600imp/kWh | 
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)
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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