1、 Product functions and features

wEquipped with automatic zero stabilization function

wEquipped with digital tuning function

wEquipped with power-off memory function

wStrong anti electromagnetic interference capability

wHas multiple wiring methods

wEquipped with automatic fault diagnosis function

wEquipped with programmable state setting function

wHas high measurement accuracy

2、 Main general technical indicators

1Measurement line system and power consumption:

Can measure the total phase voltage of a three-phase four wire circuit or any other standard/Line voltage（V）Current（I）Power consumption

（PTheQTheS）Electric energy（WhTheQh）Power factor（PF）Frequency（F）Zero sequence current（IO）Wait, wait34A parameter.

2Working voltage:

AC85～265V 40～70Hz，DC85～330V(Standard)

DC18～90V（optional）

3Power consumption of the whole machine:≤4VA

4Overload capacity:

Voltage:750VContinuous;1000V 10Seconds;1200V 3second

electric current:2Multiple rated continuous;20Double rated1second

5Input Range:

U：5～120V/600V(Maximum)600V）Automatic range switching

I：0～1A/5A(Maximum)6A）Automatic range switching

6Absorption power consumption:

Voltage: ＜0.8VA/400V，＜0.25VA/220V

Current: ＜0.1VA/5A

7Accuracy

8Programmable design:

Programming mode: (password)

Measurement system selection: three-phase four wire/three-phase three-wire/One phase, two lines/One phase, three lines/three-phase balance

CT，PTTransformation ratio:1～59999

Communication:

☆Baud rate1200/2400/4800/9600

☆Data bit:8or7

☆Checkpoint: Odd/by chance/No checksum

☆Stop position:1or2

☆Communication protocol:Modbus RTU / MODBUS ASCII rs- 485 / RS232C,Only one of them can be used at the same time

☆Clock: Year, Month, Day, Hour, Minute, Second, Week

☆Clock error:0.5second/24hour

☆Electric energy accumulation reset: (password)

☆Calibration: (Password)

9Insulation strength:

Object: In input/output/Between power sources

Reference standard:IEC688－1992

Test method:AC2KV 1minute leakage current2mA

10Electromagnetic compatibility:

①Surge（1.2/50-8/20uS）

Object: Power supplyI/0line

Reference standard:IEC61000－4－5/IEC61000－4－11

Test method:4KV（1.2×50uS）

②Fast transient pulse train

Object: Power supplyI/0line

Reference standard:IEC61000－4－4

Test method: Power supply:4KV 2.5KHz

I/0Line:2KV 5KHz

③Electrostatic Discharge

Object: Power supplyI/0line

Reference standard:IEC61000－4－2

Contact discharge:6KV

Air gap discharge:8KV

④radiofrequency electromagnetic fields

Object: Device itself

Reference standard:IEC61000－4－3

Test method:10V/mModerate intensity electromagnetic radiation (such as distance not less than1riceThe handheld walkie talkie

⑤stability

Temperature range: -10～＋50℃

Temperature impact:10ppm/℃

Long term stability:<0.2%year

11Isolation:

input/output/Mutual isolation between power sources

3、 General instructions

◆Structure: Front wiring of the board

◆Installation method:35mmRail installation or screw fixation

◆Shell material: flame retardant plastic (all black)

◆Overall dimensions:110mm×75mm×70mm