Automatic inspection for phase voltage, and have the function of indication for phase shortage

DTSF three-phase electronic multi-fee-rate power meter

The DTSF type three-phase electronic multi-fee-rate power meter has been selected with the imported integrated circuits such as power metering, clock, storing, etc., and has been adopted with the SMT surface mounting and wave-soldering processes for manufacturethe product has the features of electric-larceny proof, high precision, high reliability, high overload, low power consumption, small volume, low weight, etc.; it can be widely used in the time-share metering for the three-phase AC active power of urban and rural residents, plant enterprises, business, etc.

  Functions and characteristics:

  1. Accurately measure the electricity energy with power in the three-phase AC in separate time

  2. Broad range, high precision, long life cycle, calibration and maintenance free

  3. Automatic inspection for phase voltage, and have the function of indication for phase shortage

  4. Automatic inspection for the direction of three-phase current, and have the function for indication of current in reverse direction

  5. It can normally work and measure in reverse phase sequence , broken zero wire, power failure in 1 phase or 2 phases

  6. Automatically prevent electricity theft, and the electricity with power in the reverse direction will be calculated into that in the positive direction, and can record the total time of the operation in reverse direction, electricity volume in reverse direction and the starting time ofs the last time of operation in reverse direction

  7. 4 types of charge rates of tip, peak, plane and valley and 12 charge time periods can be set up, and the minimum interval between the time periods is 1 minute.

  8. Electricity volume in each month will be automatically converted to save on a designated date, and the 12-month historical data can be saved

  9. Multi items of display contents, and the display content and time can be randomly set up

 10. Operating parameters including temperature inside the meter, battery voltage and programming status, etc can be recorded and read

  11. High-precision time clock, with the temperature compensation, to ensure the daily timing error within 0.5 second per day

  12.Triple data backups, and the data can be saved for ten years without loss after the power failure

  13. Built-in RS485 and infrared communication interfaces, and the communication channels are independent with each other

  14. Enhanced protection for communication interface, to prevent thunder and static, and can resist the power circuit connected from the outside

  15. Optional LCD screen or LED digital screen in the Chinese language

  Technical parameters:

  Standard: GB/T17215-2002 (IEC61036: 2000, IDT) GB/T15284-2002 DL/T645-1997

  Precision level: Level 1 and 2

  Reference voltage: 3×57.7V  3×100V  3×220V/380V

  Current specification: 1.5 (6) A, 5 (20) A, 10 (40) A, 15 (60) A, 20 (80) A, 30 (100) A

  Reference frequency: 50Hz/60Hz

  Working voltage: 0.8Un ~1.3Un   Limit working voltage: 0.7Un ~1.9Un  

  Working temperature : -20°C ~ +55°C  Limit working temperature:-35°C ~ +65°C

  Power consumption: Voltage loop: ≤1W, 5VA    Current loop: ≤1VA (1b)

  Life cycle: >15 years

  Clock error: ≤0.5 s/d

  Battery: 3.6 V Li battery, 1200 mA/h, life cycle: >10 years

  Communication parameters: Communication baud rate is 1200 bps, and the distance of infrared communication is not shorter than 5m, and that of RS485 is not shorter than 1200m

Pulse output: Photoelectric isolation-type output without source ,with the pulse width for 80mS±5mS

   Telecom regulations: DL/T645-1997, regulations in various provinces, cities and regions or customized as required by the customer

  Dimensions: 240×140×76mm(L×W×H)