HC-33D8-B typeMulti channel three-phase power monitoring terminal

1Product Introduction

1.1Introduction

HC-33D8-B Multi channel Three phase Power Monitoring TerminalIt is highly integrated targetingProducts for centralized monitoring of multi-channel three-phase electricity,One terminal can simultaneously measure the power consumption of 8 independent three-phase devices (or 24 single-phase devices).

1.2Features

1.2.1 The terminal can monitor simultaneouslyPower consumption of 8-way independent three-phase equipment or 24 way single-phase equipment

1.2.2Collect three-phase data from each channel/Single phase electrical parameters, including multiple electrical parameters such as voltage, current, power, and electrical energy, with comprehensive information

1.2.3Using dedicated measurement chips and AC true effective value measurement method, the measurement accuracy is high

1.2.4Communication protocol adopts standardsModbus RTU and DLT645-2007 protocols have good compatibility and are easy to program

1.2.5beltESD protection circuitRS-485 communication interface

1.2.6tool5-way switch input: passive contact or voltage type input, 0-0.5V or short circuited to 0,+3-30V or open circuit to 1;

1.2.7optional1 relay output: dry node output, 3A 250VAC/3A 30VDC;

1.2.8Optional power supplyAC85V~265V input or DC input, DC is a wide working voltage DC12-36V, and has anti reverse protection function. Connecting the reverse power supply will not damage the module;

1.2.9haveoptionalTime sharing metering function with 8 time periods and 4 rates；

1.2.10Adopting industrial grade chips, built-in watchdog, and complete lightning protection and anti-interference measures to ensure reliability

1.2.11High isolation voltage, voltage and current input signals are isolated using miniature precision transformers, with a withstand voltage of up toDC2500V

1.2.12beltLEDIndicate the working status,LCD Chinese LCD displays data for easy on-site installation and debugging

1.2.1335mmstandardDINRail installation, multiple wiring methods, convenient for on-site installation and wiring

1.3Technical Specifications

1.3.1Three phase AC input

1)Input frequency: power frequency,50Hz±5Hz；

2)Voltage range (phase voltage): 260V and other options are available;

3)Current range: 50A, etc. (optional), such as external 50A: 25mA precision transformer input;

4)Signal processing:Using specialized measurement chips,16bitAD sampling;

5)Overload capacity:1.2 times the range is sustainable; Instantaneous (<10 cycles) current 5 times, voltage 3 times the range without damage;

6)Input impedance: Voltage channel>1 k Ω/V; current channel(Sampling)≤0.5V)；

1.3.2Switching input/output

1)input5 channels, passive contacts or DCVoltage type input; Logic level:0-0.5V or short circuited to 0,+3-30V or open circuited to 1; Input level range:0～30V， The limit range is -10 to 40V;

2)Switching output:optional1 relay output,Output of dry nodes,3A 250VAC /3A 30VDC；

1.3.3communication interface

1)Interface type: RS-485 interface;

2)Communication protocol: MODBUS-RTU standard protocol;

3)Data format: can be set by software,“n,8,1”、 “e,8,1”、 “o,8,1”、 “n,8,2”；

4)Communication speed: adjustable1200、2400、4800、9600、19200、38400Bps；

1.3.4Measure output data

8 devices, each with multiple electrical parameters such as voltage, current, power, and energy,seeMdobus data register list

1.3.5measurement accuracy

voltage、electric current:±0.5%FS; Electricity level: ±1%FSActive energyLevel 1, reactive power level 2;

1.3.6isolation

power supply、RS-485 interface、Voltage input and current input are isolated from each other; Each currentquadraticMA inputCommon ground between channels;RS-485 interfaceandDIO shared land； Isolation and voltage resistance2500VDC；

1.3.7power supply

1)optionalDC+12-36V, AC85-265V power supply

2)When powered by DC+12-36V, the peak voltage should not exceed+40V; typical power consumption:≤1W；

1.3.8working environment

1)Operating Temperature-20～+60℃； Storage temperature: -40 to+85 ℃;

2)Relative humidity:5-95%, no condensation (at 40 ℃);

3)Altitude:0-3000 meters;

4)Environment: A place without explosive, corrosive gases, conductive dust, significant shaking, vibration, and impact;

1.3.9Temperature drift:≤50ppm/℃；

1.3.10Installation method:35mmstandardDINrail mounting

1.3.11Module size： 118×158×59mm