Heyuan Intelligence DZ81-MA3UI5C User manual

User Manual
DZ81-MA3UI5C
Intelligence Power Meter
User Manual
(V1.0)
Heyuan Intelligence Technology Co.,Ltd.

User Manual
IMPORTANT DECLARATIONS
Copyright © 2018 Heyuan Intelligence Technology Co., Ltd All Rights Reserved
1. 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.
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 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.

User Manual
Contents
Chapter 1 Meter Overview………………………………………………………….1
1.1 Overview …………………………………………………….............1
1.2 Main 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

User Manual
Chapter 1 Meter Overview
1.1 Overview
DZ81-MA3UI5C is an advanced, smart networked multifunctional energy meter. It is widely used in
power distribution sites, energy management systems and intelligent monitoring systems of different
industries. Measuring all parameters: three phase voltage, current, line voltage, zero-sequence current,
zero-sequence voltage, voltage unbalance, current unbalance, active power, reactive power, apparent
power, power factor, frequency, four-quadrant electric energy, bidirectional active / reactive energy,
total active/reactive energy metering, demand analysis etc. It has 2-channel relay output, 4-channel DI
and 2-channel energy pulse 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 the clips from the meter and insert the meter into the cutout from the front side. Make sure
that the screen is at the front of the panel.
B. Install clips on the back side of the meter and secures tightly to ensure the meter is affixed to the
panel.
2.3 Technical Parameters
2.3.1 Input Voltage
Reference Voltage: 3×220V/380V Voltage Range: 0~1.2Un
2.3.2 Input Current
Measuring Range: 1‰In~1In Starting Current: 1‰In
Secondary Current of CT: 1A/5A
2.3.3 Measuring Accuracy

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Voltage/Current: 0.2% Energy Accuracy: Class 0.5 Power Factor: 0.1%
2.3.4 Working Condition
Operating Temperature: -25℃～+70℃Storage Temperature: -40℃～+85℃
Relative Humidity: 20%～90%(non-condensing)
2.3.5 Communication
RS485/Modbus-RTU Communication Protocol Baud Rate: 2400~19200bps (programmable)
Technical Parameters-MA3UI5C
Accuracy Class
Voltage:0.2, Current:0.2, Frequency:0.05Hz, Power factor:0.5
Active power:0.5, Reactive power:0.5, Appearent power:0.5
Active energy: 0.5, Reactive energy: 2
Input
Rated Value
Voltage: 100/400V; Current: 1A/5A
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
AC: 85-265V; DC: 85-300V
Consumption
< 3W
Working
Condition
Temperature
Operating: -20℃~+70℃Storage: -40℃~+80℃
Humidity
Relative Humidity: <93% (place without corrosive gas)
Altitude
<4000m
Cut-out Size
91×91mm
Installation
Panel installation
2.4 Wiring
2.4.1 Voltage, current, input terminal wiring instruction
A Three-phase four-wire connection (3LN, 3CT)

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The 3-Phase 4-Line wiring mode is commonly used in low voltage electric distribution power
systems. The UL(voltage wiring mode) parameter should be set as 0, the IL(current wiring mode)
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

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A Power Supply
The power supply for this meter is AC 85-265V (45-55Hz) or DC 85-300V. Terminals for the power
supply are (L/+,N/-). The typical power supply wiring is as followed:
If the quality of power is poor or there is an EMI problem, it’s recommended to equip an EMC filter
in the auxiliary power supply loop. The mode of wiring 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。
COther wiring
1) Relay Control
It is used for limit alarm output and switching on/off output. The output capacity of control node is
AC5A/220V or DC1A/30V.
2) Energy Pulse Output (Pulse Constant ：6400imp/kWh)

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The terminal PE1-/PE1+ are used for active energy pulse output.
The terminal PE2-/PE2+ are used for reactive energy pulse output.
DI (Digital Input)
It is used for measuring real state (connected, disconnected) of external switch, and make a
resolution of the 2ms SOE 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 button “E”, it will display the values of energy parameters circularly.

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3) Press button “P”, it will display the values of power parameters circularly.

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4) Press button “H”, it will display the total harmonic distortion(THD) of voltage or current
circularly.
Press “H” or“E” , the meter will display the 2nd~31th HC(harmonic content). The harmonic order will
increase from 2nd to 31st by one each time P is pressed. And the harmonic order will decrease by one
each time E 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 sharp, peak, shoulder, off-peak period.
After the setting, please press “E”and “V/A”at the same time to quite the interface.

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1
3
4
2
5
Item
Meaning
Description
1
Active; Reactive
Ep: Active Energy;
Eq: Reactive Energy;
2
Historical Period Time
The number 00~11 represent the current month to the last 11th month.
3
Reactive Energy in Quadrants
Number 1~4 represent the 1st to the 4th quadrant
4
Multi-tariff
:Sharp Period
:Peak Period
:Shoulder Period
:Off-peak Period
5
Energy Type
Imp: Import energy
Exp: Export energy
Total: Absolute 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 at any display interface of metering data, it will enter the system
setting interface.
At the setting mode:
The button “H”is used for digital shift. It can edit one digit shift left each time, and the digit will be

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flashing.
The button “P”is used to plus 1, i.e., the flashing digit will be plus 1 when pressing "P" each time.
If the flashing digit is 9, then press "P" and the digit will become 0.
The button "E" is used to minus 1, i.e., the flashing digit will minus 1 when pressing "E" each time. If
the flashing digit is 0, then press "E" and the digit will become 9.
The button “V/A”is used to confirm the setting and turn to the next setting interface.
If press “H”and “V/A”simultaneously at any setting interface, it will quit the setting interface and turn
to the display interface of metering data.
1) Password Inquiry
Press “H”and “V/A”simultaneously at any display interface of metering data, it will enter password
setting interface. The default password is 0000. If the password is not correct, press button“V/A”, the
meter will be still 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 Setting
At this page the user can see and set the address of meter, the range is 1-247, after setting, press ”V/A”
to confirm and enter the next setting interface.
4) Communication Parameters Setting
”CM 0”interface is used for setting the RS485 communication parameters.
And ”CM 1”interface is used for setting
The default communication parameter setting is 9600-n81.
The baud rate can be set as 19200,9600, 4800, 2400.
The communication parameter can be set as "8n1", "8o1", "8e1".
Parity: n (no parity), o (odd parity), e (even parity)
Data bits: 8 Stop bit: 1
After the setting, please press "V/A" to confirm and enter the next setting interface.

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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.

User Manual
Chapter 4 After-sales Service
Product Warranty
1.The product warranty period is one year.
2.The company is responsible for free maintenance or exchange within three-year warranty period.
3.The cost of the components and freight shall be charged for improper meter installation and/or
operation.
4.Over the warranty period, part of the maintenance 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 250101
Factory Add.: 2F Innovation Factory, Feiyue Road, High-tech Development Zone, Jinan, P.R. China
250101
Tel: [phone]
Code: 250101
E-mail: [e-mail]