SM CHINT DTSU666

User Manual: CHINT DTSU 666

​The CHINT smart meter is a great solution when the installed power of the solar power plant exceeds the permissible power to generate into the grid. The meter provides the inverter with the necessary data on the load on the internal plaster. Using the direct-circuit Chint DTSU-666(80A)meter, you can limit the release to the networks to the desired limit, work in zero export mode and apparently the direct load in the inverter app (in most cases, you will see how the energy produced is distributed under load, and what balance is given back to the networks).

The Chint DTSU666 meters with a backlight display are advanced multifunctional devices designed for bidirectional, four-quadrant measurement of electric energy in single and three-phase installations.

In addition to bidirectional energy flow (export and import), the Chint DTSU666 meters also allow for recording and reading of many other network parameters such as reactive power capacity and inductance in import and export directions. The meter has an RS-485 connection that enables easy reading of measured values using the Modbus-RTU protocol. Additionally, it has a configurable pulse output function for active or reactive energy

The device measures and transmits information on parameters such as voltage (V), frequency (Hz), current (A), energy in four-quadrant measurement method (kWh/kVArh) fed into the network (export), consumed (import), and total.

The measurement inputs include:

    4-pole connections for cable cross-sections of 16mm²

    measurements in single-phase 2-wire, three-phase 3-wire, and four-wire three-phase systems, maximum current of 80A

The main technical specifications are:

    RS-485 output, Modbus-RTU protocol

    pulse output: programmable for setting pulses for active or reactive energy

    measurements include: voltage, current, active and reactive power, power factors for individual phases, active energy export/import, reactive energy export/import, four quadrants, kWh/kVArh, kW/kVar, kVA, P, F, PF, V, A.

    backlight LCD display

    accuracy of active energy measurement (Wh): class 1, class B EN50470-1/3

    accuracy of reactive energy measurement (VArh): class 2

    THD: 1% to 31%.

Other parameters include:

    normal operating temperature: -10°C to 45°C

    maximum operating temperature: -25°C to 75°C

    average relative humidity: 0-75% without condensation

    mounting: DIN rail 43880 (72x94.5mm)