Photovoltaic PV Energy meter CHINT DTSU666 3-phase

Chint DTSU666 Modbus 0.25-5(80)A is a bidirectional, four-quadrant analysis meter with an RS-485 connection and Modbus-RTU protocol.

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)