Brand and Model: Changsha Weisheng DTSD341-9D Pass Meter 0.2s High Precision Energy Meter Time Division Multiple Rate Meter

Wiring system: three-phase four wire system

Current specification: 3 × 1.5 (6) A

Frequency: 50Hz

Multiple rates: 8 rates

Communication protocol: DL/T645-1997 protocol; DL/T645-2007 protocol; Modbus protocol

Meter attribute: Three phase four wire high-precision gateway energy meter

Accuracy level: Active power 0.2S level; Reactive power level 2

Voltage specifications: 3 × 57.7/100V, 220/380V

Product dimensions: Length x Width x Thickness: 291mm x 175.5mm x 85.5mm

Communication interface: 2 RS485 interfaces; 1-channel adsorption/far-infrared communication interface

Active pulse constant 20000 imp

Reference frequency 50Hz

Voltage working range ± 20% Un

Clock error ≤ 0.5/s/d

Clock frequency 1Hz

Mean time between failures ≥ 6 × 104h

Power consumption ≤ 2W, 10VA

Environmental temperature (-20~+55) ℃

Extreme temperature (-20~+65) ℃

Product design lifespan>10 years

Backup battery life ≥ 3 years

Pulse width of electric quantity (80 ± 10) ms

Electric pulse voltage DC (5-24) V

The net weight of a single machine is about 1.9kg

This meter uses high-precision measurement modules and high-performance management MCUs to complete energy measurement and data processing, with an active power accuracy level of 0.2S. It has the advantages of high-quality electromagnetic compatibility, strong anti-interference ability, and a beautiful and elegant data interface. It has the characteristics of high accuracy, high stability, high reliability, easy scalability, easy maintenance, and flexible communication methods. It adopts high-precision measurement solutions and algorithms with multiple independent intellectual property rights, achieving measurement accuracy that traditional measurement chips cannot achieve. It adopts a fully sealed structure and shell, which can meet the requirements of harsh high and low temperature alternating humid and hot environments.

● Full Chinese character dot matrix LCD display, menu style operation interface, capable of displaying partial data graphically. Large screen, wide-angle LCD display, with rich status indicators and Chinese character prompts, with backlight. Can display Chinese, English, Russian, Spanish, etc;
● Two air contact point power pulses can be selected with four channels and LED power pulse indicator light output, and alarm indicator light output.
Two standard RS485 channels and one adsorption infrared/far-infrared communication interface, with independent channels.
Time division measurement of forward and reverse active power, four quadrant reactive power, combination 1, and combination 2 reactive power. Any combination of four quadrant reactive power can be set to measure phase wise forward and reverse active power and inductive capacitive reactive power.
The maximum demand and occurrence time of active and reactive power in both forward and reverse directions for time-sharing metering.
Maximum 8 rates, two sets of time periods for primary and secondary, dual clock backup, automatic error correction, and can record up to 13 months of historical records.
6 types of data recording load curves can be set, with a capacity of up to 2M bytes (optional 4M bytes).
Measurement function: Measure the voltage, current, apparent power, active power, reactive power, power factor, phase angle, and frequency of phases A, B, and C.
Record various events such as voltage loss, current loss, total current loss, voltage qualification rate, reset, clearing demand, programming, timing, power on, overvoltage, reverse phase sequence, and cover opening.
● Dual backup data storage, with self checking and error correction functions, with internal card error, clock error, voltage reverse phase sequence, loss of voltage, overvoltage, loss of current, and battery undervoltage fault alarm functions.
● Equipped with anti-theft electricity opening detection function.
After a power outage, the display can be awakened through buttons, and after awakening, meter reading can be done through LCD display.
AC/DC adaptive auxiliary power supply, with priority given to the auxiliary power supply after power on;
Record various frozen data to form a graphical analysis of abnormal electricity consumption consisting of event records, load curves, and frozen data;
The three-way optocoupler empty node can choose to output individual or three in one second pulse, demand cycle or slip time, and time period switching.