background image

 

Display mode 

Segment LCD 

Installation method 

DIN-rail installation 

 

Extendsion module

 

Code  of  input  and 

output module 

Instruction 

MR4DCT 

12 channels of current measurement 

Up to 2 MR4DC can be connected. 

DIO-02 

4 digital inputs/2 relay outputs 

 

2.3 Technical parameter 

Item 

Parameter 

Accuracy 

Electrical variables 

0.2% 

Energy   

1.0S 

Signal 

input 

Temperature

 

2%

NTC  thermistor

  -10

110

,  (Only 

available in AR4DCT) 

Voltage 

Range 

Direct input   

AR4DCT:0-1500V 

Consumption 

<0.6VA 

Impedance 

>

6MΩ 

Current 

Range 

External Hall sensor input

-4

4V 

Consumption 

<0.01VA(each circuit) 

Impedance 

>200kΩ 

Power 

supply 

Working range 

AC/DC

80

270

Frequency 

50/60 Hz 

Consumption 

≤5VA 

Output 

Energy pulse 

Photoelectric  isolation  output,  pulse  width 

80ms±20%, frequency <10Hz 

Relay output 

Capacity AC250V 5A or DC30V 5A 

Isolation  voltage  between  contact  and  coil 

2500VAC rms 

Input 

Digital input 

Passive dry optocoupler isolation input, isolation 

voltage 2000VAC rms 

Communi

cation 

module 

RS485 port 

Modbus-RTU  protocol,  communication  speed 

2400

38400bps,  no  check,  odd  check  and 

even check optional 

Mechanic

al feature 

Weight 

About 300g 

Dimension 

AR4DCT main module 72x90x63.5mm 

MR4DC module 72x90x63.5mm 

DIO-02 module 36x90x63.5mm 

IP protection 

Front case IP50 

Содержание AR4DCT

Страница 1: ...1 AR4DCT DIN rail Multi function DC Power Meter User Manual...

Страница 2: ...N AND WIRING 4 3 1 DIMENSION 4 3 2 INSTALLATION 4 3 3 WIRING 5 TYPICAL WIRING 5 3 3 1 AR4DCT MR4DCT DIO 02 5 4 OPERATION 8 4 1 PANEL DESCRIPTION 8 4 2 INSTRUCTION FOR OPERATION KEYS 8 4 3 INSTRUCTION...

Страница 3: ...ation plugs without powering off Connect the terminal wires against the related instructions Please don t touch the terminals when the meter is in operation 2 Product description 2 1 Overview AR4DCT a...

Страница 4: ...sor input 4 4V Consumption 0 01VA each circuit Impedance 200k Power supply Working range AC DC 80 270 V Frequency 50 60 Hz Consumption 5VA Output Energy pulse Photoelectric isolation output pulse widt...

Страница 5: ...and demand only can be read through communication but not can be shown on the panel of meter 2 6 Digital input This meter supports 4 digital inputs The digital input uses the method of dry contact in...

Страница 6: ...ce of bus can be connected with 32 meters at most The start and end terminals of bus can be connected with terminal resistance 3 Installation and wiring 3 1 Dimension 3 1 1 AR4DCT main module dimensio...

Страница 7: ...5 3 3 Wiring Typical wiring 3 3 1 AR4DCT MR4DCT DIO 02 Other typical wiring...

Страница 8: ...R4DCT Voltage input input voltage should not be higher than 1500V 4 Current input input current should be connected via Hall sensor 5 Please make sure the directions of voltage an current are same 6 W...

Страница 9: ...input Voltage signal 11 14 Voltage input Energy pulse output 47 48 Active energy pulse output RS485 communication 58 59 Corresponding to A and B Relay output 15 17 2 relay outputs 16 is common end Di...

Страница 10: ...bit or select an item Menu Keep pressing it for 3 seconds to enter programming mode Cancel or return to upper level menu Confirm or enter next level menu 4 3 Instruction for measurement interface Mea...

Страница 11: ...rd input interface input the password defaulted password is 0001 through or key and press key to enter the setting interface if the password is correct Exit programming mode When the data or items in...

Страница 12: ...Import energy Export energy Energy pulse constant Unit imp kWh Clear demand Not clear demand Clear demand Clear energy Not clear energy Clear energy Input setting Rated voltage Unit V fixed value Curr...

Страница 13: ...ode Energy pulse width Voltage range Rated current of 1 circuit Alarm mode Alarm delay time Alarm hysteresis value Alarm value Cycle display interval LCD backlight duration Energy pulse constant Progr...

Страница 14: ...60s Save modified data and exit programming mode Menu 3s Menu Menu 5 3 Input signal setting User can set rated current value according to practical situation at field E g To set rated voltage value a...

Страница 15: ...operation process is as follows Enter programming interface select signal input setting menu Menu Menu 3s Menu Set relay working mode as alarm mode Alr Set relay pulse width as 10 0s Set alarm item a...

Страница 16: ...e subordinate machine addresses of normal meter and abnormal meter Besides you may check whether there is a fault in the meter by exchanging the installation positions of normal and abnormal meters Da...

Страница 17: ...er is negative The most common problem on spot is inlet and outlet wire of current transformer are in reverse connection Observe signed active power in split phase and it may be negative because of wr...

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