EN
The QSM11-1 is a flexible single-phase smart meter designed to support evolving utility and AMI requirements. Combining high-accuracy energy measurement, intelligent data management, and modular communication capabilities, it supports both prepaid and postpaid operation within the same device. Advanced features such as multi-tariff billing, load profile recording, event logging, and tamper monitoring provide utilities with greater visibility and control over energy consumption. Built on an expandable hardware architecture, the QSM11 allows future communication and functionality upgrades, making it a reliable foundation for long-term smart metering deployments.
Designed with an expandable hardware architecture, the QSM11-1 features plug-and-play communication modules supporting GPRS, 3G, 4G, and also have LoraRF,PLC(Power line carrier),G3-PLC interfaces. This modularity ensures utilities can upgrade their communication network infrastructure without replacing the entire meter. With open-protocol DLMS/COSEM conformity, it guarantees effortless integration into existing Head-End Systems (HES) and Meter Data Management (MDM) platforms.
The QSM11-1 excels in remote data acquisition and grid management. It provides operators with comprehensive multi-tariff billing configurations, real-time load profiling across up to 12 channels, and a robust event logging system that instantly flags power grid abnormalities and tampering attempts. It serves as a highly reliable, future-proof foundation for large-scale utility deployments looking to optimize operational efficiency and minimize non-technical losses through remote automated management.
1. Open protocol: DLMS/COSEM (E mode)
2. Prepayment and post-payment mode switchable for users’ convenience
3. Local and remote firmware upgrades.
4. Plug-and-play communication module, such as GPRS, 3G, 4G, etc.
5. Internal switch relay for load demand control by configuration or remote communication
1. Measuring forward and reverse active energy in tariff.
2. Measuring forward and reverse reactive energy in tariff.
3. Instantaneous value measurement.
4. Up to 4 tariffs
5. Up to 8 divisions per day; weekend configurable
6. Up to 4 seasons, working days, and weekend tariff scheme configurable per season.
7.12 months billing data and other frozen data for inquiry.
8. Block or slide mode configurable for maximum demand.
9. Import and export active MD in tariff with time stamp.
10. Import and export reactive MD in tariff with time stamp.
11. Large digit LCD display, easy to read.
12. Display readable without main power (RWP).
13. Standardized OBIS display
14. Backlights to increase readability in low light conditions.
15. Real-time clock: clock with calendar, timing, and leap year automatic conversion function.
16. Multiple event detections and records with categories of operation, power grid, and tampering.
17. Base cover or terminal cover open detection and record
18. prepayment is mode via a numeric token with extended ways of recharging.
19. Channel quantity customized before leaving the factory; up to 8 channels.
20. Data for load profile record configuration
21. External battery replaceable
22. Load profile up to 12 channels
| Specifications | QSM11-1 | |
| Accuracy | Active | 1.0 |
| Vollage | Rated current | 110V,120V,220V,230V,240V |
| Range | 0.8Un-1.2Un | |
| Limit | 0.7Un-1.3Un | |
| Frequency | 50Hz/60Hz | |
| Basic Current(lb) | Range | 5A,10A |
| Maximum Current(lmax) | Range | 40A,60A,80A,100A |
| Starting Current | 0.4%lb | |
| Display | Type | LCD |
| Digit | 6+2 | |
| Power Consumption |
Voltage Circuit | ≤2.0W,10VA |
| Current Girauit | ≤4VA | |
| Communication | Interface | OPtical/RS485/M-bus/GPRS/3G/RF/PLC |
| Temperature Condition | Work Temperature | -25℃～+65℃ |
| Storage Temperature | -35℃～+75℃ | |
| Humidity | ≤85% | |
| IP degree | IP54 | |
| Dimension | 217X128X77mm | |
| Weight | Net weight | 0.74kg |
| Weight | 0.78kg | |
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