DTSU666 series three phase four fire electronic energy meter (DIN Rail)
DSU666□series electronic energy meter is designed for power monitoring and energy measurement such as power system, communication industry, construction industry, etc. to be a new generation of programmable intelligent instrument, integrated with measurement and communication function, mainly used for real-time measurement and display for the electrical parameters such as voltage, current, active power, reactive power, frequency, power factor, energy in the electrical circuit, etc.
1.Main functions and characteristics
◆DIN35mm standard DIN-Rail mount, with seven modular and segment LCD display;
◆Measuring function: it is characterized with measurement for voltage, current, frequency, active power, power factor, active energy and negative energy of the three phase four wire circuit.
◆Communication function: RS485 communication interface, supporting DL/T645-2007 protocol, and customizable for MODBUS-RTU protocol
◆Multi-rate function: it supports four rates including top, peak, flat and valley rate.
2.Specification and type selection:
Voltage, current, power, reactive power, frequency, power factor
Power impulse output
Two lines 7 segment LCD
126×89×66 7 modulus
Note: RS485 communication is assumed to be DL/T645-2007 protocol, customizable Modbus-RTU protocol
3.Main technical performance and parameters
Three phase four wire
Specified work voltage range
0.9Un~1.1Un; the extensional work voltage range: 0.8Un~1.2Un
Consumption of the voltage circuit
Via PT/CT input AC1.5(6)A
Direct input AC 5(80)A
Via PT/CT input: instant:201max, time of application: 0.5S
Direct input: instant:301max, time of application: half cycle of the rated frequency
Consumption of the current circuit
Measurement parameters & grade
Voltage Class 0.5; Current Class 0.5; Power factor Class 1;
Frequency Class 0.5;
Reactive power :Class 1;
Reactive energy: Class 2;
Support positive/negative total active/reactive multi-rate measurement function
Support reactive four quadrant energy measurement function
Max. demand record
Support positive/negative total active/reactive max. demand record, demand cycle and slip time can be set
AC3×200V/380V AC1.5(6)A 6400imp/kWh(imp/kvarh)
AC3×200V/380V AC5(80)A 400imp/kWh(imp/kvarh)
Pulse signal output
Provide 1 set(active/reactive energy)optical signal and optocoupler isolated open collector electrical signal pulse output, pulse length:80ms±16ms
Support MODBUS-RTU or DL/T645-2007 communication protocol(switchable), the communication baud rate 1200bps, 2400bps,4800bps,9600bps can be set, assumed to be 9600bps
Support MODBUS-RTU or DL/T645-2007 communication protocol(switchable), Infrared wavelength: 900nm~1000nm communication baud rate:1200bps communication angle: ≥±15° communication distance:≥4m
Note: 1.The meter can only be the same as its corresponding technical performance and parameters.
2. The items remarked * is the optional items, which shall be specified by the customers while ordering.