Photovoltaic PV Energy meter FoxESS DTSU666 3-phase

The three-phase bidirectional meter DTSU666 0.25-5(80)A is designed for use with FoxEss inverters. It is a bidirectional, four-quadrant analyzer meter equipped with an RS-485 port and Modbus-RTU protocol.

ATTENTION!!! The meter is not compatible with Huawei inverters because it is not an -H version with dedicated software for Huawei.

In addition to bidirectional energy flow (export and import), Chint DTSU666 meters allow for recording and reading of many other network parameters such as reactive energy capacity and inductance in import and export directions. The meter has an RS-485 port, which allows for easy reading of measured values via 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frequency (Hz), current (A), energy in the four-quadrant measurement method (kWh/kVArh) fed into the grid (exported), withdrawn (imported), and total.

The measurement inputs include:

• 4-pole connectors for cable cross-sections of 16mm²

• measurements in single-phase 2-wire, three-phase 3-wire, and four-wire three-phase 4-wire systems, with a maximum current of 80A

The most important technical data are:

• RS-485 output, Modbus-RTU protocol

• Pulse output: programmable to set pulses corresponding to 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.

• Backlit 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 are:

• Normal operating temperature: -10ºC to 45ºC

• Maximum operating temperature: -25ºC to 75ºC

• Average relative humidity: 0-75% without condensation

• Mounting: DIN rail 43880 (72x94.5mm)