Three Phase Four Wire Multi-tariff Electronic Meter
This three-phase, four-wire multi-tariff electronic meter supports both import and export metering. It can record various events and the meter can be read during power outages.



Technical Specifications
Overview
Advanced Three-Phase Metering
The DTSF217 (T9-1) is a robust three-phase, four-wire electronic energy meter engineered for precision and versatility. It supports both import and export metering with advanced Time-of-Use (TOU) or step tariff functions, making it ideal for modern energy management. Designed for reliability, the unit features comprehensive event logging and data freezing capabilities, ensuring data integrity even during power outages.
Technical Specifications
Accuracy Class
Voltage & Frequency
- Reference Voltage: 3x57.7V/100V; 3x220V/380V
- Reference Frequency: 50/60Hz
Current Ratings
| Connection Type | Current Range |
|---|---|
| Transformer | 1.5(6)A, 5(6)A, 5(10)A |
| Direct | 10(40)A, 10(60)A, 20(80)A, 10(100)A |
- Standards Compliance
- IEC62052-11IEC62053-21IEC62053-22IEC62053-23
Operating Environment
Operating Temperature
- Voltage Operation Range
- 0.8Un to 1.2Un (Limited: 0.7Un to 1.3Un)
Features
Communication Interfaces
- Far infrared interface
- RS485
- Protocol: DL/T 645-2007
- Data Freezing Options
- DailyHourlyOccasionalImmediate
Physical Properties
- Dimensions (LxWxH)
- 290mm x 170mm x 85mm
- Net Weight
- 2.8 kg
- Design Life
- 15 years



