Model  No.

Name

YD4U-9X4

Three-phase AC voltmeter

YD4U-9D4

Three-phase AC voltmeter (communication/transfer)

YD4U-9X1

Single-phase AC voltmeter

YD5U-9X1

Single-phase DC voltmeter

YD4U-9D1

Single-phase AC voltmeter (communication/transfer)                                                              

YD5U-9D1

Single-phase DC voltmeter (communication/transfer)

Performance

Parameter

 Input voltage display

Network

3 phase 3 line,3 phase 4 line

   Voltage  

Rated voltage

AC100V,400V(please note when purchase)

Overload

Measurement:1.2 times  instantaneous:2 times/10S

Power consumption

<1VA (each phase)

Impedance

>200kΩ

Accuracy

Class 0.5

Frequency

40~60Hz, accuracy 0.2

Power

Active power, Reactive power, Apparent power, Accuracy: 0.5 class

Electric energy

Four quadrant measurement, active poweraccuracy rate0.5 class,

reactive power accuracy rate 1 class

Display

Programmable, switching, LCD/LED display  

Power Supply

Operation range

AC/DC  80~270V

Power consumption

≤5VA

Output

Digital interface

RS-485,MODBUS-RTU

Pulse output

Two power pulse output, photo-couple relay

Environment

Working environment

-10~55ºC

Store environment

-20~75ºC