1. Brief Introduction
DTS-353 is a three phases four wires digital energy meter with current transformer, LCD backlight, RS485 communication ( protocol Modbus-RTU) and built-in latching relay for wide application.
2. Technical Parameter
3. Function Description
3.1 Metering Function
l Active & reactive energy
l CT and VT ratio are resettable:（CT：1~1000:1 VT：1~1000:1 Max.CT*VT：1000）
l Factory Default: CT ratio 1:1, VT ratio 1:1
l To set parameters through button,including code,CT, VT,meter address,CT.VT protection and remotely output control.(to set through communication is optional).
3.2 Communication Function
l RS485 Communication (protocol Modbus-RTU)
3.3 Display Function
l LCD will scroll display(through external button):voltage、current、frequency、power factor、active and reactive power、active and reactive kWh
l Plz refer to LCD display part
3.4 Backlight indication
l When the button is locked via communication, the backlight color will become purple;
l When backlight color is blue, it indicates built-in small relay disconnects; When backlight color is red, it indicates built-in small relay connects.
l Built-in small relay（load voltage Max. 400V、load current Max.100mA、impedance Max. 30Ω).
l Impulse output isolation.