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User Manual

 

 

5) Voltage Connection Method Setting 

There are 3 kinds of voltage connection methods optional as follows (by pressing button P or E to 

choose): 

3Ln (Three-phase four-wire 3PT connection)   

2Ln (Three-phase four-wire 2PT star

 

(Y) connection) 

2LL (Three-Phase Three-Line open delta

 

(

Δ

) connection) 

After the setting, please press "V/A" to confirm and enter the next setting interface. 

 

6) Current Connection Method Setting 

There are 3 kinds of voltage connection methods optional as follows(by pressing button P or E to 

choose): 

3C (with 3 CTs)   

2C (This mode of connection is used for the balanced three-phase circuits, and it

s capable to calculate 

Ib according to "Kirchhoff's laws". The current input mode of the meter should be set to 2C) 

1C (this mode of connection is used for the balanced three-phase circuits, and we only need to measure 

Ia, Ia=Ib=Ic ) 

After the setting, please press "V/A" to confirm and enter the next setting interface. 

 

7)PT & CT Ratio 

The setting range is 1~9999.   

It should be noted that the product of PT ratio and CT ratio is less than 300 000. 

After the setting, please press "V/A" to confirm and enter the next setting interface. 

Setting Example: 

If the PT ratio is 10kV/100V, the parameter of PT ratio should be set as 100 

(the parameter of PT ratio = 10 000 / 100 = 100. 

Note: the set of CT ratio is as the same as the PT ratio. 

After the setting, please press "V/A" to confirm and enter the next setting interface. 

Summary of Contents for DZ81-MA3UI5C

Page 1: ...User Manual DZ81 MA3UI5C Intelligence Power Meter User Manual V1 0 Heyuan Intelligence Technology Co Ltd ...

Page 2: ...rs The rights of upgrading without notice are reserved 2 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 3 The meter must be installed and operated ...

Page 3: ...n Functions 1 Chapter 2 Specifications 2 2 1 Dimension 2 2 2 Installation 2 2 3 Technical Parameters 2 2 4 Wiring 3 Chapter 3 Meter Display and Operation 6 3 1 Parameters Display 6 3 2 Parameters Setting Operation 9 Chapter 4 After sales Service 14 Chapter 5 Contact Us 14 ...

Page 4: ...output function and support standard Modbus RTU communication protocol Display LCD Chapter 2 Specifications 2 1 Dimension unit mm 2 2 Installation unit mm This series of products should be installed in a dry and dust free environment and avoid exposing to excessive heat radiation and high electrical noise source The meters can be installed into a standard panel cutout of switch cabinet A Remove th...

Page 5: ...A Overload Voltage Sustained Overload 1 2 times of the rated value Momentary Overload 2 times of the rated value Current Sustained Overload 1 2 times of the rated value Momentary Overload 2 times of the rated value Frequency 45 60Hz Functional Module Pulse output 1 Interface 1 RS485 Modbus RTU communication protocol Baud rate 1200 19200bps DI 4 DO 2 4 AC250 5A DC30V 5A Power Supply Working Range A...

Page 6: ...ode parameter should be set as 0 at the parameter setting interface B Three Phase Three Line open Delta Mode 2LL 2CT Open delta wiring mode is often used in high voltage systems For this mode the UL the voltage wiring mode should be set as 2 and the IL the current wiring mode should be set as 1 at the parameter setting interface 2 4 2 Power supply communication interface and Digital input ...

Page 7: ... is as followed B Communication Interface This meter support RS485 serial communication and the ModbusRTU protocol Terminals for wiring are 485A 485B 485PG The transmission medium of RS485 is shielded twisted pair STP And the terminal RS485PG should be connected with ground through Shielding layer 标号为 485PG 端子需要接屏蔽双绞线的屏蔽层 屏蔽层需单端接地 C Other wiring 1 Relay Control It is used for limit alarm output an...

Page 8: ...OE event record Chapter 3 Meter Display and Operation There are four buttons on the front panel labeled H P E and V A from left to right It can be used for reading real time metering data setting parameters though the four buttons 3 1 Parameters Display 1 Phase Voltage Line Voltage and Current Press button V A it will display the values of phase voltage line voltage and current circularly 2 Press ...

Page 9: ...User Manual 3 Press button P it will display the values of power parameters circularly ...

Page 10: ... is pressed And press H or E again it will the parameter display interface of voltage current 5 Historical Energy Multi tariff Press E and V A at the same time it will enter the interface of historical multi tariff Press V A to switch the last Nth month energy N represents 00 11 Press E to switch the interface of active energy reactive energy and apparent energy etc Press H to switch the energy of...

Page 11: ...lute value and electrical energy Net Net energy 6 DI Relay Control Display It will display the DI Relay status at the bottom of the real time parameter display interface 继电器状态 开关量状态 Eg The above figure shows the meaning is as follows The 3rd channel DI is connected and the 2nd channel relay is connected 3 2 Parameters Setting Operation 3 2 1 System Parameter Setting Press H and V A simultaneously ...

Page 12: ...in the password inquiry page and an alarm icon will flash in the lower left corner If the password is correct it will enter the next setting interface 2 Back light Time Setting BL interface is the page of backlight time setting At this page the user can see and set the backlight time the setting range is 1 999 After the setting press V A to confirm and enter the next setting interface 3 Meter ID S...

Page 13: ...uits and it s capable to calculate Ib according to Kirchhoff s laws The current input mode of the meter should be set to 2C 1C this mode of connection is used for the balanced three phase circuits and we only need to measure Ia Ia Ib Ic After the setting please press V A to confirm and enter the next setting interface 7 PT CT Ratio The setting range is 1 9999 It should be noted that the product of...

Page 14: ...e cost according to 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 hours 3 Except statutory holidays and force majeure Chapter 5 Contact Us Headquarter Add 7F No 1 Aosheng Building 1166 Xinluo Street High tech Development Zone Jinan P R China 25010...

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