1. Product Introduction
The DTSD/DSSD electronic three-phase multifunctional energy meter is a modern and advanced instrument designed and manufactured using large-scale integrated circuits, digital sampling processing technology, and SMT technology, based on the actual power consumption of industrial users.
The performance indicators of this meter comply with the technical requirements of the national standards GB/T 17215-2002 "Level 1 and Level 2 Static AC Active Energy Meters", GB/T 17883-1999 "0.2S and 0.5S Static AC Active Energy Meters", and DL/T 614-1997 "Multifunctional Energy Meters". Its communication meets the requirements of DL/T645-1997 "Multifunctional Meter Communication Protocol".
This meter can measure active and reactive power and maximum demand, and has functions such as dual 485 communication, manual and infrared power outage wake-up. It has stable performance, high accuracy, and easy operation.
2. Functional features
Measurement function
1) Time division measurement of positive and negative active energy (active energy measurement method can be set), and storage of current, last month, and previous month data;
2) Time division measurement of forward and reverse reactive power (reactive power measurement method can be set), and storage of current, last month, and previous month data;
3) Measure the total active and reactive energy, and store data for the current, previous, and previous months;
4) Time division measurement of reactive energy in four quadrants, and storage of current, last month, and previous month data;
5) Measure the maximum demand and occurrence time of forward and reverse active power in a time-sharing manner, and store the current, last month, and previous month data;
6) Time division measurement of maximum reactive power demand and occurrence time in both forward and reverse directions, and storage of current, last month, and previous month data;
7) The maximum demand cycle is available in 5, 10, 15, 30, and 60 minutes.
Multiple rate function
1) Programmable 4 rates, 12 time periods, 5 daily time period tables, 4 time zones, 12 public holidays, and 3 days of Spring Festival;
2) Equipped with backup time period function: When executing the current rate and time period status, a pre stored second set of rates and time periods can be set, automatic conversion time can be set, and the base code for automatic conversion (including positive and negative active power, positive and negative reactive power total, and various rate electricity quantities) can be saved;
3) The external clock chip has calendar, timing, and anniversary automatic switching functions, as well as temperature compensation function.
Display function
1) LCD display, able to display clearly within the temperature range of -30 ℃ to+55 ℃;
2) Equipped with automatic parameter rotation display function, the parameters, time, and sequence of the rotation display can be set arbitrarily;
3) Equipped with button display function, the display content and order can be set arbitrarily;
4) Use the remote control to view any data content;
5) Equipped with backlight function, the backlight can be illuminated through remote control or button operation. Whether the backlight is activated during power outage and wake-up can be set.
Communication function
1) The electricity meter has two RS485 interfaces and one infrared communication interface. A PC or handheld computer can communicate with the electricity meter through three communication interfaces simultaneously, truly achieving three party communication without interference with each other;
2) The RS485 interface is electrically isolated from the inside of the meter and is designed with lightning protection circuits;
3) The communication protocol refers to DL/T 645-1997.
Output function
1) It has the function of reactive power test pulse output, positive and negative active power, and positive and negative reactive power pulse test (remote control) port output;
2) It has multifunctional output function, which can realize output functions such as 1Hz clock, demand cycle replacement signal, time period switching signal, overload trip, etc.
Event recording function
1) Real time measurement of effective values such as A, B, and C three-phase voltage, current, power, and current frequency;
2) It has recording functions such as voltage loss, phase failure, current loss, overvoltage, undervoltage, overcurrent, power outage, programming, demand reset, broadcast timing, etc.
Special functions
1) Equipped with power outage button wake-up function, infrared and light wake-up functions, light wake-up is optional (within 3 days of power outage), and infrared meter reading can be awakened during power outage;
2) It has the functions of fault information prompt and alarm (LCD, alarm light);
3) Load represents the hourly energy recording function of the day;
4) Has monthly (settlement) positive functional electricity recording function;
5) Equipped with load curve recording function (up to 2 types of loads can be recorded), the freezing time of the load curve can be set, and the frozen data can be copied back through a PC;
6) It has the function of recording event packets (up to 100), which can record the time of each event in sequence and can be copied back through a PC;
7) It has instant freezing, zero freezing, and time zone conversion freezing functions;
8) Optional lid opening recording function;
9) Optional three-phase voltage free current detection function (within 3 days of power outage).

TECHNICAL INDEX

l Comparison Table of Specifications, Models, and Pulse Constants

Accuracy level: active power 0.5S level 1 level; Reactive power level 2
Rated voltage: 3×100V 3×57.7/100V 3×220/380V
Rated current: 1(2)A～30(100)A
Frequency:- 40℃～+70℃
Working temperature: ≤ 0.5S
Display mode: ≥ 1000mAh
Whole machine power consumption: ≥ 10 years
Weight: Approximately 2.4kg
External dimensions: 293mm×175mm×80mm