Product parameters

Product Name: Weisheng Electric Meter DTZ341 Three phase Four wire Multi functional Intelligent Energy Meter

Scope of application: Suitable for power plants, substations, and enterprises and institutions with high reliability and high stability energy metering requirements

Main functions: time-sharing measurement of active and reactive energy, recording demand and occurrence time, with self checking and error correction functions, event recording function and alarm prompt function

Accuracy level: Active power: 0.2S, 0.5S level, 1 level; Reactive power: Level 2

Reference voltage: 3 × 57.7V/100V

Current specification: Transformer connection type: 0.3 (1.2) A; 1(2)A; 1.5(6)A; 5(6)A

Straight through: 5 (20) A, 50 (60) A, 10 (40) A, 15 (60) A, 20 (80) A

Communication protocol: DL/T645-2007 and its filing documents

Communication interface: dual RS-485, far-infrared communication

Dimensions: Length x Width x Thickness: 256mm x 170mm x 75mm　

Functional classification

Measurement parameter function: It can measure active power, reactive power, forward active power, reverse active power, forward reactive power, reverse reactive power, four quadrant reactive power, and other electrical quantities.

• Parameter monitoring function: It can monitor real-time values of voltage and current in each phase, as well as real-time parameters such as active power, reactive power, power factor, phase angle, and phase of the three-phase total and A, C phases.

• Time sharing metering function: Time sharing metering of forward and reverse active power, four quadrant reactive power, and maximum demand.

Data storage function: It can store 12 months of historical electricity data.

• Load curve: with 6 types of data recording load curve functions; You can freely choose to draw a curve graph from data such as voltage, current, frequency, power and power direction, power factor, total reactive power, four quadrant reactive power, current demand, etc.

• Display function: wide viewing angle, large screen LCD display, with rich status indication and Chinese character auxiliary prompt information; It can display the monthly electricity consumption data for the past three months.

Anti electricity theft function: It has event recording functions such as lid opening, voltage loss, current loss, phase failure, current imbalance, power failure, reset, reverse phase sequence, and reverse electricity being included in forward electricity, to prevent users from illegally removing or cutting off voltage and current wiring.

• Data output and communication functions: It can be displayed through buttons, read through infrared handheld devices and 2RS485 communication ports, and with the meter reading system, can read various electricity data of the meter. It supports DL/T645-2007 multifunctional energy meter communication protocol.

Wiring method

Functional feature diagram

Anti theft function

If a user illegally removes or cuts off voltage or current connections, the electricity meter will issue an alarm signal until the user resumes normal electricity use.

Voltage qualification rate and voltage loss recording function

Prevent users from illegally removing or cutting off voltage connections.

• Open lid recording function

Prevent illegal changes to the circuit.

• Loss of current and phase failure recording function

Prevent users from illegally short circuiting current connections.

• Current imbalance record

Be alert to users intercepting electricity at the front end of the meter wiring.

• Power down recording function

Prevent users from illegally removing the working power supply of the electricity meter.

Reverse sequence alarm

If the user illegally connects the wires, the electricity meter will continue to alarm unless the wires are connected correctly.

Meter reading method

• Display meter reading: By pressing the buttons on the meter, the monthly total electricity, voltage, current, power factor, and other data of the meter can be queried on the LCD screen.

Power outage meter reading: Equipped with a power outage meter reading battery to provide the energy required for the operation of the energy meter, in order to maintain the relevant data in the meter.

Communication meter reading: By using dual RS485 communication ports for meter reading and a handheld infrared meter reading machine, combined with the meter reading system, various electricity data from the meter can be read. And supports DL/T645-2007 multifunctional energy meter communication protocol.

Conventional display content of LCD screen

This month's positive (negative) active (reactive) power consumption. {Support pressing the "up" and "down" buttons to view the details of last month's battery life}

This month's forward (reverse) active (reactive) peak, peak, flat, and valley electricity quantities. {Support pressing the "up" and "down" buttons to view the details of last month's battery life}

• Display of total A, B, and C electricity parameters: active power, reactive power, power factor, phase position, voltage, current, demand, current loss, voltage loss, power, reverse phase sequence, etc.

Packaging Content

Weisheng DTZ341 three-phase four wire smart meter

Product User Manual (one copy per box)

• Product Warranty Form