Detailed Product Description

Single-Phase Multi-Tariff watt-hour meter DDSF8111

Features Specifications:

1.  Production Brief Introduction

The DDSF8111  type electronic single-phase multi-rate watt-hour meter is composed by the electronic single-phase watt-hour meter part and multi-rate, LCD display, infrared or RS485 communication. It has high measuring accuracy, well stability, well overload ability and high reliability. It can measure the time-sharing single phase. All the indexes of the meter comply the standard of GB/T15284-2002 MULTI-RATE (time sharing) watt-hour meter and GB/T17215-2002 Class 1 and 2 Static AC Active watt-hour meter, the communication agreement accord with DL/T645-1977 Multi-function watt-hour meter communication rule.

2.  Function and Feature

1)-each of four periods has different rates (point period, peak period, smooth period and trough period). Every period of time can be programmed into 12 periodsof time and the minimum time interval is one minutes

2)-all the consumption date can be reserved for 12 months

3)-It can auto identify the directional, will be auto save and accumulate to the forward direction power counter. It can auto save the reverse direction power, starting time and the total time

4)-it has the function of reverse directional pulse test and indication

5)-it has the isolated RS485 communication, and design for pervent from the lightning strike

6)-date-copying adopt the password and program switch protection, recording the latest program time and degree

7)-it adopts the hardware clock circuit, the lowest current consumption, the battery is one-time and environmental protection lithium battery

8)-it can setup the meter number, bureau number, time-period, rate, date, time, meter reading time, password and the initial electric power

9)-it can indicate the short voltage of the backup battery, the hardware state of the meter, the communication state of the meter, the clock state, the directional electric energy, time-adjusting state and the present time-period. It can read via RS485 or hand computer.

10)-meter reading function at power off.

3.  Main Technical Data: