EN
QBM16-1 is a robust, standard-sized single-phase STS-certified prepayment electricity meter built for maximum mechanical durability and high-performance revenue protection. Enclosed within a heavy-duty casing (270×154×105 mm) and weighing 1.2kg, this meter provides a substantial physical presence engineered to withstand heavy-handed usage and harsh environmental conditions in outdoor utility deployments.
Reinforced Tamper Defense: Engineered with an enhanced physical security perimeter, recording specific date stamps for base cover and terminal cover open detections, operating continuously even during complete grid power blackouts (RWP supported).
Heavy-Duty Revenue Isolation: Employs a rugged internal low-voltage relay that automatically executes immediate cutoff procedures the absolute moment balance credit reaches zero, guaranteeing zero utility overdraft exposure.
Industrial Load Management: Built-in heavy-duty overload detection and circuit control systems dynamically prevent commercial tenants from over-subscribing grid capacity, safeguarding local transformer infrastructure.
1. ST's standard protocol ensures an open and secure operating system
2. Optical communication, open protocol: DLMS/COSEM (E mode)
3. Prepayment and post-payment modes are switchable for users’ convenience
1. Bi-directional measurement of active energy.
2. Display real-time clock, balance credit, voltage, current, active power, etc.
3. Prepayment function: purchase electricity first, then use electricity.
4. Recharge is loaded through a 20-digit token
5. Alarm by LED or Buzzer when low credit, overload, and tamper.
6.meter reading and setting through optical communication port.
7. Automatic cutoff when the balance credit is zero.
8. Support error self-detection function.
9.Overdraft/Credit power usage.
10. Overload detection, control, and alarming.
11. Balance credit multi-level alarm function.
12. Base cover and terminal cover open detection and record.
13. Display readable without main power (RWP).
14. Low-voltage relay disconnection protection function.
15. Daily analysis function of balance credit.
| Specifications | QBM16-1 | |
| 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+1 | |
| Power Consumption |
Voltage Circuit | ≤2.0W,10VA |
| Current Girauit | ≤4VA | |
| Communication | Interface | OPtical |
| Temperature Condition | Work Temperature | -25℃～+65℃ |
| Storage Temperature | -35℃～+75℃ | |
| Humidity | ≤85% | |
| IP degree | IP54 | |
| Dimension | 270X154X105mm | |
| Weight | Net weight | 1.2kg |
| Weight | 1.4kg | |
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