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IMPORTANT DECLARATIONS 

 

Copyright © 2018 Heyuan Intelligence Technology Co., Ltd All Rights Reserved 
 
This manual may not be reproduced, copied, transmitted or transcribed in whole or in part by any 
means  without  the  expressed  written  permission  of  Heyuan. Any  shall  be  investigated  for  legal 
responsibility in violation of copyright or other intellectual property rights of the Company. We check 
the user manual’s contents regularly and will make necessary amendments in next version. Welcome 
to give advice for some unexpected errors. The rights of upgrading without notice are reserved. 
 
Please read this manual carefully before the product is operated. And once you start operating the 
meter, you’ll be considered to have read this manual and accept all our terms. Heyuan shall not be 
responsible  or  liable  for  any  damages  or  injuries  caused  by  improper  meter  installation  and/or 
operation. 
 
Attention: the following symbols in this manual refer to meanings as follows 

   

Electric Shock Symbol: Carries information about procedures which must be followed 

to reduce the risk of electric shock and danger to personal health   

   

Safety Alert Symbol: Carries information about circumstances which if not considered 

may result in injury or death 
 

The meter must be installed and operated by one who has experience with high-voltage devices or 
has qualifications. Please connect the meter to correct voltage before operating the meter. Please 
install and use the meter according to the user manual. Heyuan shall not be responsible or liable for 
any damages or injuries caused without following the instructions in the user manual. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for DZ81-MS3UI7C

Page 1: ...DZ81 MS3UI7C Three Phase Power Meter User Manual Heyuan Intelligence Technology Co Ltd...

Page 2: ...ered to have read this manual and accept all our terms Heyuan shall not be responsible or liable for any damages or injuries caused by improper meter installation and or operation Attention the follow...

Page 3: ...mension Installation 2 3 1 External Dimension 2 3 2 Cut out Size 2 3 3 Installation Method 2 Chapter 4 Terminals 3 Chapter 5 Typical Wiring 3 5 1 Wiring Instruction Voltage and Current Wiring Instruct...

Page 4: ...ing Accuracy Voltage Current Accuracy Class 0 2 Energy Accuracy Class Class 0 2S Power Factor 0 1 Frequency 0 01Hz 2 5 Communication RS485 Modbus RTU Communication Protocol Baud Rate 1200 9600bps prog...

Page 5: ...g please make sure that the primary circuit is powered off Chapter 3 Dimension Installation 3 1 External Dimension unit mm 3 2 Cut out Size unit mm Front View Side View Cut out Size Model No Dimension...

Page 6: ...rrent Input Lower Row of Terminals Chapter 5 Typical Wiring 5 1 Voltage and Current Wiring Instruction A Three phase Four wire Wiring Mode 3LN 3CT The star like 3 Phase 4 Line wiring mode is commonly...

Page 7: ...and high voltage systems According to different wiring modes corresponding wiring mode should be set on the Voltage Wiring Mode Setting Interface Chapter 6 Meter Display and Operation There are four...

Page 8: ...a display interface press and simultaneously it will enter the system parameter setting interface At the setting mode The button is used for digital shift Press button each time to shift one digit whi...

Page 9: ...uiry Meter Address Baud Rate Voltage Wiring Mode Current Wiring Mode PT Ratio CT Ratio 6 4 Parameters Setting Steps 6 4 1 PS Interface i e Password Inquiry Interface Press buttons and simultaneously i...

Page 10: ...io Setting Interface This interface displays the present PT ratio whose value ranges from 1 to 2000 After setting press button to confirm and enter CT ratio setting interface For example if the PT rat...

Page 11: ...econdary energy value through CTs 1 referring to open state of the energy ratio switch which means the energy value on the energy interface is the real primary energy value After setting press button...

Page 12: ...actual situation will be charged Service Guarantee 1 Product technical consulting and quality complaints will be replied within 12 hours 2 Solutions for quality complaints will be provided within 24...

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