Oneoverview
Three phase intelligent digital display power instrument is a new generation of three-phase intelligent digital display current and voltage Current voltage combination table,Mainly used for AC voltage in electrical circuits,Real time measurement and indication of current,And through485Interface or analog transmission output interface for remote transmission of measured parameters.High measurement accuracy,Stability,Long term work face calibration,Features such as on-site parameter settings through panel buttons,It is an ideal substitute for the original pointer instrument

IIcharacteristic
This series of products adopts large-scale integrated circuits and high-performance microcontrollers in hardware, discrete digital signal processing technology in software, and modular design in design. Make this product have a high cost-effectiveness.

1The display magnification, display mode, and display brightness can all be set through buttons.

2.mail address Baud rate All settings can be made through buttons

3.Has upper and lower limit alarms,alarm mode,The alarm threshold can be freely set

4.have0～20mA 4~20mASend output immediately Free to set

5.Can be withPLCTouch Screen Waiting for networking

IIISpecification(Execution standardsGB14913-94)

4Usage and precautions

1. Please check carefully before powering on Confirm auxiliary power supply Is the input signal line correct

2. The instrument should not be subjected to collisions and severe vibrations, and the usage environment should meet the requirements

Fiveoperational condition
1.ambient air temperature
1).The upper limit value does not exceed40'c
2)The lower limit shall not be lower than-5'
3).Daily average not exceeding35'c
4).When the ambient temperature exceeds the above range, users can negotiate with our company
5）The altitude of the installation location shall not exceed2000rice

2.atmospheric conditions
Relative humidity of the atmosphere compared to the surrounding air temperature+40‘Cnot more than50%There can be higher humidity at lower temperatures Degree, due to temperature changes Measures must be taken for the condensation sent on the product

VIPackaging and storage
1.Instruments and their accessories should be stored in a ventilated and dry place under packaging conditions to avoid moisture and corrosive gas erosion

2. The maximum storage temperature shall not exceed+70'cnot less than-35'crelative humidity<>
Long term storage without use, please power on every three months,Not less than four hours each time
Long term storage Should avoid direct sunlight

7、 Appearance and installation openings

Panel Description

Panel button instructions
< || ="">Left Used for reducing numbers Or the previous option
||>>Right key Used for increasing numbers Or the next option
Switching between menus of the same level||>>or<||>||>

MenuMenu key Used to enter settings during standby mode Used in the settings for Return without savingPREVIOUS MENU
enter key Used to enter the sub menu or save and returnPREVIOUS MENU

Single organizational structure

explain:

Connection

Note: If attached communication call the police Analog transmission output Waiting for functions Wiring diagram Please refer to the wiring sticker of the instrument itself

Warranty period:From the date of manufacture, if this instrument is damaged under non-human conditions in accordance with the requirements specified in the user manual, the company will provide compensation1year warranty

Ordering Instructions:When placing an order, the complete instrument model should be specified in the contract

for example

year the moon sun

Contact Number

Communication instructions:

ModbusIt is fromModicon(Now a brand of Schneider Electric)1979Invented in [year], it is the world's first bus truly used in industrial fieldsagreement.
ModbusHas the following characteristics:

（1）Standard and open, users can use it for free and with confidenceModbusagreementThere is no need to pay license fees and it will not infringe on intellectual property rights.
（2）ModbusCan support multiple electrical interfaces, such asRS-232、RS-485It can also be transmitted over various media, such as twisted pair cables, fiber optics, wireless, etc.
（3）ModbusThe frame format is simple, compact, and easy to understand. Easy for users to use and simple for manufacturers to develop.

ModbusThere are three branches under the communication protocol:Modbus-tcp Modbus-ascii,Modbus-rtu.

What does our product supportModbus-rtuagreement. The electrical rules areRS485Electrical Rules
Modbus-RTUThe data frame format of the protocol:
The query message structure is as follows:

Our product supports function code have
03/04: Used for querying
6: Used to write to a single register

16(Decimal): Hexadecimal is 10 Used for writing multiple registers
The format of the returned data frame is as follows:

For example: three-phase current

return

Write data frame format

For example, registers Activate the relay1Output a contact signal

Register Address List:

① The instrument settings corresponding to the numbers returned by the display mode
0： Display voltage

1：ADisplay Current

2：LWheel display

② Return data Corresponding instrument baud rate

0：1200 bps
1：2400 bps
2：4800 bps
3：9600bps

③ Return the analog output mode corresponding to the data, as well as the alarm

④