485 interface multifunctional electric meter

1 Overview

The DTSD1352 rail type multifunctional energy meter is an intelligent instrument designed mainly for the electricity statistics and management needs of power systems, industrial and mining enterprises, and public facilities. The product has the advantages of high accuracy, small size, and easy installation. Integrate common power parameter measurement and energy metering and assessment management, providing various energy data statistics for the past 48 months. It has 2-31st harmonic and total harmonic content detection, with switch input and switch output to achieve "remote signaling" and "remote control" functions, and has alarm output. It has RS485 communication interface and can choose MODBUS-RTU or DL/T645 protocol. This power meter can be widely used in various control systems, SCADA systems, and energy management systems.

2. Technical parameters

3. Product selection

Note: 1: Default reactive power pulse, clock pulse, and switch output can be selected from three options;

2: Choose between active switch quantity and second communication channel;

3: When selecting the temperature measurement function, none of the optional functions mentioned are available.

4. Product features

5 External dimensions

6. Wiring method

7. Main functional features

7.1 Measurement Function

Capable of measuring all electrical parameters including voltage U, current I, active power P, reactive power Q, apparent power S, power factor PF, frequency, 31st harmonic and total harmonic content. Voltage U is rounded to 1 decimal place, frequency F is rounded to 2 decimal places, current I is rounded to 2 decimal places, and power P is rounded to 3 decimal places. For example: U=220.1V, f=49.98Hz, I=1.99A, P=0.439kW

7.2 The metering function can measure the current combination of active energy, forward active energy, reverse active energy, forward reactive energy, and reverse reactive energy.

7.3 Time division function: Two sets of time period tables, one year can be divided into 4 time zones, each set of time period tables can set 14 daily time periods and 4 rates (F1, F2, F3, F4 are peak and valley). The basic idea of time of use billing is to treat electricity as a commodity, using economic leverage to increase electricity prices during peak periods and lower prices during off peak periods, in order to reduce peak hours, improve electricity quality, and enhance overall economic benefits.

7.4 Demand Function

7.5 Historical Data Statistics Function

Can calculate the historical electricity (electricity at various rates) for the past 48 months and the historical electricity (electricity at various rates) for the past 90 days.

7.6 Switching input/output function

There is one switch output and one switch input. The switch output is a relay output, which can achieve "remote control" and alarm output. The switch input can not only collect and display local switch information, but also achieve remote transmission function through the RS485 of the instrument, that is, the "remote signaling" function.

7.7 Temperature measurement function

Supports three-way external NTC temperature measurement function, with a temperature range of -40 ℃~99 ℃

485 interface multifunctional electric meter

485 interface multifunctional electric meter