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User’s Manual                                                                                                                                                                 Smart Digital Power Meter 

Instruments.uni-trend.com

                                                                                                                                                                                     

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4. Press

or

key to select other submenu, or press

SETUP

key to exit SETUP menu. 

 

·Explanation 

 supports RS232 and RS485 interface

both interfaces have the same baud rate, so it can be set 

by the method in this section. 

6.3 Modbus Communication Address

 

·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” can display. The setting method 

of communication command can refer to section 6.1 

    The communication address range of Modbus is 1-99. 

Summary of Contents for UTE9811+

Page 1: ...User s Manual UTE9811 Smart Digital Power Meter...

Page 2: ...warranty period will be from the date of the original purchase from an authorized UNI T distributor Probes other accessories and fuses are not included in this warranty If the product is proved to be...

Page 3: ...tributors are informed that any indirect special incidental or consequential damage may occur UNI T and its distributors shall not be responsible for any of the damages Safety Instructions To avoid po...

Page 4: ...r specified for this product 11 Do not use the instrument that work abnormally if you suspect that the product has malfunctioned let qualified maintenance personnel to check the instrument 12 Unplug t...

Page 5: ...2 communication 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 consistent and there are no proble...

Page 6: ...User s Manual UTE9811 Smart Digital Power Meter Instruments uni trend com 6 40 2 Testing Position 3 Remove Hand Shank 4 Lift Position...

Page 7: ...of lighting appliances power tools household appliances electricmotors and electric heating appliances of production lines laboratories and quality inspection departments Characteristics 1 VA broken c...

Page 8: ...ter Voltage Resolution 0 01V 0 1V Measuring Range of Current 5 0mA 20 0A Current Range 200mA 1A 4A 20A Accuracy of Current 40Hz f 70Hz 0 4 reading 0 1 range 1 character Current Resolution 0 001A Switc...

Page 9: ...ut for Continuous Voltage 700V Current 24A Maximum of Allowed Input for Instant 1000V 40A 1 min Input Impedance Voltage about 2 M Current is less than 0 02 Upper Lower limit Four settings for the uppe...

Page 10: ...000 meters General Characteristic Color Gray Weight 3 2kg Size 214mm 88mm 340mm Standard Accessories Specialized power cable x1 RS232 serial port line X1 Optional Accessories UTE L10A 10A three pronge...

Page 11: ...the two keys in the manual Up Down Key Menu editing Use up down key to select function item Number editing Use up down key toincrease or decrease the numerical value For description use to indicate th...

Page 12: ...d Symbol Display and Symbol Description Four display windows Display measurement data The display screen can display V voltage A current W power PF power factor Hz frequency and measurement value of h...

Page 13: ...he format special symbols are needed to represent each character as shown in the following figure A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 0 2 5 Rear Panel The rear panel...

Page 14: ...ded Warning Please make sure that the power supply voltage matches the supply voltage before turning on the power supply otherwise the instrument will be burned out Notes The instrument should be used...

Page 15: ...nagain otherwisetheinstrumentmayabnormally display 3 1 4 Power on Measurement Firstly plug in the power socket on the rear panel and use the specified voltage the power socket should be with a ground...

Page 16: ...70Hz The four window display as shown in the following figure 3 2 2 Alarm for Over Range These situations will be regarded as over range 1 The measured value of voltage and current exceeds 120 of the...

Page 17: ...l not refresh Press it again the indicator will be extinguished and the data will be update 3 2 6 Lock Lock Key To prevent from error operating during measurement lock key function can set other key b...

Page 18: ...ch by press PF HZ key 3 3 2 Crest Factor Press CF key to enter crest factor display interface as shown in the following figure Window 1 the measured value of voltage crest factor no unit The measured...

Page 19: ...nit is A Window 3 the total RMS active power operation value of 1 50 times the unit is W Window 4 is fixed to display RMS When no voltage signal is input or voltage frequency is over the range Window...

Page 20: ...V Window 2 the current measured value of the current harmonic times the unit is A Window 3 the total RMS power operation value of 1 50 times the unit is W When no voltage signal is input or voltage fr...

Page 21: ...unit is Window 2 current total harmonic distortion factor the unit is Window 3 the total RMS power operation value of 1 50 times the unit is W When window 4 displays or01 or50 Window 1 voltage distort...

Page 22: ...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 r...

Page 23: ...s 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...

Page 24: ...o the size of input signal UTE9811 is only supports auto range in normal mode Voltage Range Increasing The voltage range will increasing when any one of the following condition is met Urms exceeds mea...

Page 25: ...editing state press key to edit the numerical value 3 Press ENTER 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 uppe...

Page 26: ...the upper lower limit is 0 at the same time it represents the alarm function is forbidden Alarm Function After the alarm function is enabled the system waits to connect the load When the system detec...

Page 27: ...press SETUP key to exit SETUP menu Explanation UTE9811 supports SCPI and Modbus communication command represents Modbus communication command Modbus is only support RTU mode The detailed command can r...

Page 28: ...s 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 numerica...

Page 29: ...key to exit 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 mea...

Page 30: ...ts firmware version represents hardware version 7 3 User s Grade Step 1 Long press ENTER Utility key to enter Utility menu press or key to select submenu LEVEL as shown in the following figure 2 Press...

Page 31: ...E9811 Auxiliary Function After the user s grade is complete reboot the instrument for the setting to take effect 7 4 Firmware Update Step 1 Long press ENTER Utility key to enter Utility menu press or...

Page 32: ...r Utilitymenu press or key toselect submenu CALib as shown in the following figure 2 Press ENTER key toenter secret codeediting press key toedit secret code 3 Press ENTER keyto confirmthesetting ifthe...

Page 33: ...hould match with the following parameters of the control host 1 Baud Rate 4800 9600 19200 38400 57600 115200 The setting method of baud rate for UTE9811 can refer to section 6 2 2 Check bit NONE fixed...

Page 34: ...on As shown in the following figure 8 2 2 PC connect to multiple UTE9811 via RS485 The number in block diagram represents the pin number of DB9 interface Use direct serial port line to connect PC and...

Page 35: ...on 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 instrum...

Page 36: ...calculating the measuring error value to judge whether is within the error range The requirements of environment temperature of verification and calibration as the following table Item Reference Valu...

Page 37: ...ur own Match Solution of Testing Wire Match Solution Name Component and Name Specification of Voltage Current Lengt h Recommende d Appliance Solution 1 10A testing wire and accessorie s UTE L10A 10A t...

Page 38: ...ox 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 shown in the following figure If the fuse was burned out...

Page 39: ...when k 1 r is the real part j is imaginary part Current I k A k I k I k I j r Active power P k W P k I k U k I k U k j j r r Total RMS voltage of 1 50 times U V 50 1 2 k k U U Measurement Function Uni...

Page 40: ...100 1 I k I Voltage total harmonic distortion factor Uthd 100 1 50 2 2 U k U k Current total harmonic distortion factor Ithd 100 1 50 2 2 I k I k Measured value of voltage total harmonic distortion Ut...

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