Single Phase Two Wire Smart Energy Meter
Type: DDS1311
This meter Certified with DLMS & IEC International Standards Class 1 Active & Class 2 Reactive High-precision Measurement, Bluetooth APP Remote Reading & Management Full-range Anti-tamper Alarm Log, Transparent Anti-tamper Housing, Direct Input 5(100)A Large Current. Ideal for Overseas Residential Buildings, Shops, Rental Houses Wireless Sub-metering.
description
| Sub-item | Sub-item | Parameter Details |
| Basic Parameters | Meter Type | Single-phase two-wire |
| Current Sampling Circuit | Single loop (Only L circuit is used for energy metering; N circuit only measures instantaneous neutral current and power) | |
| Active Energy Accuracy Class | Class 1 (IEC 62053-21) | |
| Reactive Energy Accuracy Class | Class 2 (IEC 62053-23) | |
| Rated Voltage | 220 V (0.9Un ~ 1.1Un); The meter cannot operate normally when voltage is below 160 V, and Bluetooth & load profile functions will be disabled | |
| Rated Frequency | 50 Hz | |
| Current Rating | 5(100) A | |
| Starting Current | 0.004Ib (Induced reactive current may cause inaccurate phase angle under light load conditions) | |
| Pulse Constant | 1000 imp/kWh | |
| Power Consumption | Current circuit power consumption ≤0.5 VA Voltage circuit power consumption ≤2 W / 5 VA | |
| Temperature Range | Operating temperature: -30℃ ~ 55℃ Storage temperature: -40℃ ~ +70℃ | |
| Metering | Energy Metering | Refer to Section 4.2.1.1 Energy Metering for details |
| Instantaneous Values | Refer to Section 4.2.1.2 Instantaneous Value Metering for details | |
| Demand Mode | Block interval mode & sliding window mode; Block interval mode by default | |
| Demand Period | Configurable: 1/5/10/15/30/60 mins; Default: 15 mins | |
| Monthly Maximum Demand Rules | 1. Different total reset algorithms for active and reactive energy 2. Monthly maximum active demand will be cleared upon total reset and settlement, and accumulate continuously during time modification; its accumulated value is consistent with that of block interval demand (See Appendix for full details) | |
| Communication | Communication Port 1 | Near infrared communication |
| Communication Protocol | IEC 62056-21 Mode E | |
| Access Rights | Administrator, Reader | |
| RTC Clock | Clock Accuracy | ≤0.5 seconds per day at 23℃ |
| Backup Battery Service Life | The external battery can maintain clock operation for 2 years during power outage | |
| Display – LED Indicator | Pulse Output | Active energy pulse output (Switchable via command; Refer to Section 4.2.2.4 for switching commands) |
| LCD Size | Larger than 8 cm² | |
| Minimum Digit Height | 8 mm | |
| Display Format | Energy Reading Display | Configurable: 8+0, 7+1, 6+2, 5+3; Default: 8+0 |
| Demand Decimal Places | Configurable: 0/1/2/3; Default: 3 decimal places | |
| Instantaneous Power | 3 decimal places | |
| Instantaneous Voltage | 1 decimal place | |
| Instantaneous Current | 2 decimal places | |
| Power Factor | 2 decimal places | |
| Display Duration | Normal Auto Display | Configurable time; Default: 10 s |
| Key-triggered Display | Fixed 10 s | |
| Power-down Wake-up Display | Fixed 30 s | |
| Display Items | Refer to Section 4.2.1.3 Display Contents for details | |
| Load Profile | Recording Interval | Configurable 1–60 mins; Default: 15 mins |
| Storage Capacity | At least 45 days of data stored under 15-min interval | |
| Capture Objects | Refer to Section 4.2.4 Load Capture Objects for details | |
| Monthly Billing | Billing Modes | 1. Programmed billing: Execute billing immediately after receiving command2. Automatic billing: Trigger billing automatically on preset date |
| Billing Time | Configurable; Default: 00:00 on the 1st of each month | |
| Billing Records | Refer to Section 4.2.5 Monthly Billing for details; Max. 24 records stored | |
| Event Parameters | Configurable Threshold & Delay Items | Undervoltage, overvoltage, reverse power, phase loss, neutral loss, magnetic interference, live-neutral reverse connection (60–120s) |
| Fixed Delay Items | Meter cover open: 3 s; Terminal cover open: 3 s; Low battery detection: 3 s | |
| Event Log | Standard Events | Max. 100 records; Refer to Section 4.2.8.1 Standard Events |
| Power Quality Events | Max. 100 records; Refer to Section 4.2.8.2 Power Quality Events | |
| Alarm Function | Alarm Registers | Real-time display of Alarm Register 1 & 2 |
| Alarm Filters | Alarm Filter 1 & 2 (Event enable/disable switches) | |
| Alarm Description | Alarm Description 1 & 2 (Latching status) | |
| Upgrade | Meter Upgrade Function 1 | Local optical port upgrade (Not supported temporarily) |
| Meter Upgrade Function 2 | Delta differential upgrade (Not supported temporarily) |
