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User’s Manual Smart Digital Power Meter

Instruments.uni-trend.com

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8.2 Connecting Example

8.2.1 PC connect to via RS232

· The number in block diagram represents the pin number of DB9 interface.

· Use direct serial port line to connect PC and . The factory provides direct serial port line.
· This connecting method supports SCPI and Modbus instruction.

As shown in the following figure.

8.2.2 PC connect to a single via RS485

· The number in block diagram represents the pin number of DB9 interface.

·

Use direct serial port line to connect PC and the RS232 to RS485 convertor.

·

This connecting method is only support Modbus instruction.

As shown in the following figure.

8.2.2 PC connect to multiple via RS485

· The number in block diagram represents the pin number of DB9 interface.
· Use direct serial port line to connect PC and the RS232 to RS485 convertor.
· A , B port of the RS232 to RS485 convertor parallel connect to A , B port of multiple .
· This connecting method is only support Modbus instruction. The baud rate of the PC must be the same as

that of each , and the IP address of each must be different.
As shown in the following figure.

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Содержание UTE9802+

Страница 1: ...User s Manual UTE9802 Smart Digital Power Meter ...

Страница 2: ...iod UNI T reserves the rights to either repair the defective product without charging of parts and labor or exchange the defected product to a working equivalent product Replacement parts and products may be brand new or perform at the same specifications as brand new products All replacement parts modules and products become the property of UNI T The customer refers to the individual or entity th...

Страница 3: ...ether hascrackor plastic lack Do not use the instrument in flammable and explosive gas steam or dusty environment 2 Only trained personnel can execute maintain procedure to avoid fire and personal injury there must be personnel supervision in use otherwise it should be turned off the instrument and its power supply 3 Before connecting the instrument observe all marks ontheinstrumentto learnmore ab...

Страница 4: ...r a long time Please do not pull the power cord to unplug it if the instrument need to move please make sure the power line and other connecting line is pulled out and use the carrying handle on the side of the instrument be gentle with it to prevent collision Environmental Condition UTE9802 digital power meter can only use indoors and non condensing area the general environmental requirements sho...

Страница 5: ...mmunication line 1 4 User s manual Please download from official website http www uni trend com Explanation After confirming that the contents of the package are consistentandthere are no problems please keep the box and related contents properly the instrument should meet the encasement requirements if it return to the factory for service 1 2 Hand Shank The hand shank can be adjustment hold the h...

Страница 6: ...User s Manual UTE9802 Smart Digital Power Meter Instruments uni trend com 6 34 3 Remove Hand Shank 4 Lift Position ...

Страница 7: ...rement in production sites as well as laboratory and R D measurements It is widely used in in the fields of lighting appliances power tools household appliances electric motors and electric heating appliances of production lines laboratories and quality inspection departments Characteristics 1 VA broken code screen display for intuitive reading It adopts high speed A D transformer and 32 bit MCU o...

Страница 8: ...age Resolution 0 01V 0 1V Measuring Range of Current 0 5mA 20 0A Current Range 500mA 2A 8A 20A Accuracy of Current DC 0 4 reading 0 1 range 1 character 40Hz f 66Hz 0 4 reading 0 1 range 1 character 66Hz f 400Hz 0 3 reading 0 2 range 1 character Current Resolution 0 0001A 0 001A Switching Range Auto Manual Power Range 1W 12kW Accuracy of Power DC 0 4 reading 0 1 range 1 character 40Hz f 66Hz 0 4 re...

Страница 9: ...Input Impedance Voltage about 2 M Ω Current is less than 0 02Ω Upper Lower limit Four settings for the upper lower limit of power and current P Hi Power high P Lo Power low A Hi Current high A Lo Current low Average Function Interface RS232 DB9 2 pin TX 3 pin RX 5 pin GND RS485 DB9 8 pin A 9 pin B Baud Rate 4800 9600 19 2K 38 4K 57 6K 115 2K default 9600 It follows communication protocol of standa...

Страница 10: ...tion cable x1 UTE L16C 16A connection cable with alligator clip x1 UTE L16A 16A three pronged plug convert banana head plug connection cable x1 Standard Packing Quantity Outer box 2 Standard Packing Size 400mm 300m 325mm Gross Weight of Standard Packing 9kg 2 3 Front Panel The front panel and function of UTE9802 as shown in the following figure 2 3 1 Key function on the front panel Key Function Sy...

Страница 11: ...menu this menu is to editing the configuration data of measurement alarm and communication Mute Key The beeper can be mute when over the limit mute alarm Press the key to activate mute key and the indicator will be illuminated press it again to relieve the mute and the indicator will be extinguished Zero Clear Press this key to enter zero correction state Zero function is to recalibrate zero bit v...

Страница 12: ...ent value of power is lower than the upper limit Measuring mode The currently voltage range when it displays V auto it is auto range The currently current range when it displays A auto it is auto range 2 4 Digital and Character Display The data display format of data display window is nixie tube Due to the limitation of the format special symbols are needed to represent each character as shown in ...

Страница 13: ...ollowing figure and table No Picture of parts Description 1 Under test load LOAD terminal it usually used to connect to the input port of the product to be test 2 Under test input terminal SOURCE terminal it usually used to connect to the output port of AC power 3 Three wire power socket and fuse 4 Ground terminal 5 RS232 RS485 communication interface ...

Страница 14: ...able or explosive materials it may cause safety injuries 3 1 2 Connecting Test Circuit Please follow the following figure to connect the power and load and make sure voltage and current is within the measurement range of the instrument Warning 1 The load current flows along the thick wire in the above diagram so these wires should have a large enough safe load capacity 2 The power supply of the lo...

Страница 15: ...d out the required measurement value from the display on the front panel of the instrument after the load has been working stably Notes The instrument should be preheated for 30 minutes before entering the stable state After cutting off the instrument power it should wait for more than 5 seconds before powering it on again It is strictly forbidden to switch the power on and off repeatedly within a...

Страница 16: ... is less than rated value 0 1 1 Voltage current power displays 0 2 Power factor displays 3 2 3 Alarm for Break Off When switch measurement range and function will be appear for a while 3 2 4 Hold Data Hold Press Hold key and the indicator will be illuminated the measurement value will keep display and the data will not refresh Press it again the indicator will be extinguished and the data will be ...

Страница 17: ...en if the size of input signal changes The manual range can select from the following options Voltage range 600V 300V 150V 75V Current range 20A 8A 2A 0 5A Auto Range If the measurement range is set to auto range the instrument will synchronous switch range according to the size of input signal Voltage Range Increasing The voltage range will increasing when any one of the following condition is me...

Страница 18: ...ACDC AC or DC 3 Press ENTER key to select the current selected option and save it 4 Press or key to select other submenu or press SETUP key to exit SETUP menu Explanation Measurement Mode Measurement Mode Voltage Current ACDC AC DC TRMS TRMS AC AC component AC component DC Simple average Simple average Theoretical Equation ACDC AC DC Select this mode to display the TRMS value of the voltage and cu...

Страница 19: ...u or press SETUP key to exit SETUP menu Explanation OFF represents the average function is disabled 8 16 32 64 represents the average function is enabled and the number of average Average The average method is moving average it is for power supply or load with great variation or the numerical value display is unstable reading is difficult when the frequency of input signal is low The average measu...

Страница 20: ...ss ENTER key to enter the next option and the press or key to select 0 1 0 25 0 5 1 2 or 5 3 Press ENTER key to select the current selected option and save it 4 Press or key to select other submenu or press SETUP key to exit SETUP menu Explanation The data update cycle is the update interval of the sampled data of the measurement function The data update cycle can set to 0 1s 0 25s 0 5s 1s 2s or 5...

Страница 21: ...ER key save the setting 4 Press or key to select other submenu or press SETUP key to exit SETUP menu Explanation A Hi represents the upper limit of current A Lo represents the lower limit of current P Hi represents the upper limit of power P Lo represents the lower limit of power Notes when editing the numerical value the lower limit cannot greater than the upper limit Otherwise it will prompt oF ...

Страница 22: ...alarm function is forbidden Alarm Function After the alarm function is enabled the system waits to connect the load When the system detects the voltage and current are both greater than 0 it will recognize the load is connected and start to count the time After the alarm delay the system will compare the measured value with the upper lower limit if the measured value is within the upper lower limi...

Страница 23: ... press SETUP key to exit SETUP menu Explanation UTE9802 supports SCPI and Modbus communication command represents Modbus communication command Modbus is only support RTU mode The detailed command can refer to UTE9802 Smart Digital Power Meter SCPI Programming Manual and UTE9802 Smart Digital Power Meter Modbus Programming Manual 6 2 Baud Rate Step 1 Press SETUP key to enter SETUP menu press or key...

Страница 24: ... Step 1 Press SETUP key to enter SETUP menu press or key to select submenu Addr as shown in the following figure 2 Press ENTER key to enter numerical value editing state press key to editing numerical value 3 Press ENTER key to save the setting 4 Press or key to select other submenu or press SETUP key to exit SETUP menu Explanation Only when the communication command sets to Modbus submenu Addr ca...

Страница 25: ...it Utility menu Explanation The setting parameter can be initialize and restore it to the factory setting This function is very useful for cancelling all the setting or restarting execute measurement function The factory setting can see as the following table Item Default Setting Display Window 4 Display function PF Date Update Cycle 0 25s Measurement Range Auto range Measurement Mode AC DC Averag...

Страница 26: ...exit Utility menu Explanation represents firmware version represents hardware version 7 3 Firmware Update Step 1 Long press ENTER Utility key to enter Utility menu press or key to select submenu boot as shown in the following figure 2 Press ENTER keytoenter secret codeediting press key toedit secret code 3 Press ENTER keyto confirmthe setting if the secret code is correct thenit canenterfirmware u...

Страница 27: ...er Utility menu press or key to select submenu CALib as shown in the following figure 2 Press ENTER key toenter secret codeediting press keytoedit secret code 3 Press ENTER key toconfirmthesetting ifthesecret codeiscorrect thenit canenter calibration interface 4 Press or key to select other submenu or press SETUP key to exit Utility menu ...

Страница 28: ... UTE9802 communication interface is DB9 female head thedefinition of pinas shown inthe following figure 1 NC 2 TXD RS232 3 RXD RS232 4 NC 5 GND RS232 6 NC 7 NC 8 A RS485 9 B RS485 Communication Setting Before operating communication UTE9802 shouldmatchwiththe following parametersofthe controlhost 1 Baud Rate 4800 9600 19200 38400 57600 115200 The setting method of baud rate for UTE9802 can refer t...

Страница 29: ... the pin number of DB9 interface Use direct serial port line to connect PC and the RS232 to RS485 convertor This connecting method is only support Modbus instruction As shown in the following figure 8 2 2 PC connect to multiple UTE9802 via RS485 The number in block diagram represents the pin number of DB9 interface Use direct serial port line to connect PC and the RS232 to RS485 convertor A B port...

Страница 30: ... later delivery of instruments Using packaging materials to transport instruments can protect them from sudden temperature changes shocks and vibrations and protect them from damage during transportation 9 1 3 Do not store the instrument in an environment with dust fumes or chemical gases 9 1 4 Avoid direct sunlight 9 2 Trouble shooting No Problem Solution 1 No widow display when enable the instru...

Страница 31: ...ze and then slowly adjust the output voltage or current of the standard AC source Observing the standard meter to reading out the required value precisely record the data of the standard meter and measured meter after the data is stable and calculating the measuring error value to judge whether is within the error range The requirements of environment temperature of verification and calibration as...

Страница 32: ...n needs The following table is match solution for user to reference Please note the specifications and the maximum current and voltage in the table Notes The above figure is optional testing wire not equipped with the instrument It should purchase by your own Match Solution of Testing Wire Match Solution Name Component and Name Specification of Voltage Current Length Recommended Appliance Solution...

Страница 33: ...V 16A Connect scheme of testing wire as shown in the following figure Warning Before connect with circuit please make sure the power is cut off to prevent from electric shock 10 2 Specification of Fuse This instrument has 1 spare fuse stored in the fuse box If the fuse was burned out replace the fuse as the follow steps 1 Pull out the power cable use small screwdriver to take out the fuse box as s...

Страница 34: ...5723888 Postcode 523808 http www uni trend com cn Measurement Function Unit Operation Formula Explanation Voltage TRMS V N u N 1 n 2 n 1 Urms u n represents instantaneous value of voltage i n represents instantaneous value of current N represents ADC sampling time within the measurement range Voltage DC Component V N u N 1 n n 1 Udc Voltage AC Component V 2 2 Udc Urms Uac Current TRMS A N N 1 n 2 ...

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