GSD7666 Single-phase Keypad Prepayment Energy Meter
GSD7666- DG2 is an advanced & compact DIN-rail energy meter with split-type structure & Class 1 accuracy.Complying with STS standard, the meter is suitable for commercial & residential cus
Details
GSD7666 is a single-phase keypad prepayment energy meter compliant with STS standard. The meter has various smart functions to measure energy accurately for commercial & residentialcustomers. An optional Customer Interface Unit(CIU) could be equipped, communicating with the meter by M-bus, PLC or RF based on requirements.
Main Features
| ·SRE detection ·20-digit STS encryption ·Tamper detection & recording ·IEC62056-21 compliant optical port |
·Double CT for phase & neutral line ·Disconnecting on overload & no-credit condition ·Prepayment/postpayment mode switchable ·Programmable warning of load limit & low credit |
Split-type Structure for Anti-tampering Protection
The CIU(Customer Interface Unit) is optional, linking to the MCU(Metering & Control Unit) with communication modes of M-bus, PLC or RF based on requirements.
The CIU is installed inside the customer’s home for inputting prepayment token and searching for information, while the MCU is normally installed in a meter enclosure away from the customer’s home.
ELECTRICAL PARAMETERS
| VOLTAGE | |
| Nominal voltage Un | 230V |
| Limited voltage | 70% ~ 120%Un |
| FREQUENCY | |
| Nominal frequency fn | 50 ~ 60Hz |
| Tolerance | ±5% |
| CURRENT | |
| Basic current(Ib) | 5A |
| Maximum current(Imax) |
80/100A optional
|
| Starting current(Ist) | 20mA |
| Active energy constant | 1000imp/kWh |
| MEASUREMENTACCURACY | |
| Active energy as IEC62053-21 | Class 1.0 |
| POWERCONSUMPTION | |
| Voltage circuit | <2W<8VA |
| Current circuit | <1VA |
| TEMPERATURE RANGE | |
| Operation range | -25℃ ~ +70℃ |
| Storage range | -40℃ ~ +85℃ |
INSULATION
| Insulation level | 4kV rms 1min |
| Impulse withstand voltage | 8kV 1.2/50 μs |
| Insulation system classification | Protection class II |
ELECTRO MAGNETIC COMPATIBILITY
| ELECTROSTATIC DISCHARGES | |
| Contact discharge | 8kV |
| Air discharge | 15kV |
| ELECTROMAGNETIC RF FIELDS | |
| 27MHz to 500MHz typical | 10V/m |
| 100kHz to 1GHz typical | 30V/m |
| Fast transient burst test | 4kV |
| MECHANICAL REQUIREMENTS | |
| Meter case protection class | IP54 |
| Insulation system classification | Protection class II |
| Maximum cable size | 8 mm |
