China Supplier Three Phase Energy Meter Digital Current Volt Frequency Meter

Accuracy of measurement

*Voltage:level 0.5

*Current:level 0.5

*Active power:level 0.5

*Reactive power:level 0.5

*Power factor:level 0.5

*Frequency:±0.02Hz      LST96-3EY                LST96-3E

*Active electric energy:class 0.5s        

*Reactive electric energy:class 1 or class 2

Signal Input

*Connection Mode:three phase four wires,three phase three wires

*Rated Voltage:AC 57.7V,AC 100V,AC 220V,AC 380V

*Rated Current:AC 1A,AC 5A

*Overload:

      Voltage:1.2 times(continued),2 times/1second(instantaneous)   Current:1.2 times(continued),10 times/5second(instantaneous)      

*Power Consumption

      Voltage:<1VA per phase

      Current:<0.4VA per phase

*Impedance

      Voltage:>300KΩ

      Current:<20mΩ

*Frequency:45~60Hz

Accessory Power Supply

*Working Range:AC/DC 80-270V

*Power Consumption:<4VA

Function Module

*Communication Interface:1 way RS-485 communication,modbus-RTU protocol

*Baud Rate:2400~9600bps,the default is 9600bps

*Switch Input:4 ways

*Switch Onput:3 ways(capacity:AC 250V/1A,DC 30V/5A)

*Transmission Onput:3 ways(analog Onput:0/4~20mA or 0~5/10V)

*Electric energy pulse output:2 ways(constant:3200imp/kwh(kvarh))

Work environment

*Working Temperature:-10℃~+55℃

*Storage Temperature:-25℃~+70℃

*Relative Humidity:≤93℃,no corrosive gas

*Altitude:≤2500m

Safety

*Insulation Resistance:>100MΩ

*Ac Electric:AC 2KV

Emc Performance

*ESD Electrostatic Discharge:class 4

*Electrical Fast Transient Burst:class 4

*Surge(impact):class 4

Terminal diagram

Basic power measurement+Swith output+Analog transmitting output

Note:If the wiring diagram on the instrument case is inconsistent, please use the instrument case

2)Basic power measurement+Swith input+Swith output

Note:If the wiring diagram on the instrument case is inconsistent, please use the instrument case

typical signal wiring diagram

Example 1:

  Model:LST12-3E

  Frame Size(mm):120*120

  Power supply:AC220V/50Hz

  Signal input:three phase four wires, AC 3*220/380v, AC 100A/5A

  Other:Factory settings(Not specified in accordance with the default settings factory)

Q1:If I'm interested in your product when I can receive your quotation and detail information after send the enquiry?

A:All your enquiry will be replied in 24hours.

Q2:Can I get a sample before the order because I really don't how is your product quality?

A:Of course! We also think sample order is the best way to build the trust.And in our company we offer free sample service! Please send the enquiry to us and get the free sample!

Q3:Do you have a catalogue? Can you send me the catalogue to have a check of all your products?

A:Yes, We have product catalogue. Please contact us on line or send an Email to sending the catalogue.

Q4:I need your price list of all your products, do you have a price list?

A:We do not have a price list of all of our products. Because we have so many items, and it is impossible to mark all of their price on a list. And the price are always changing because of the producing cost. If you want to check any price of our products, please feel free to contact us. We will send offer to you soon!