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10. Communication Function (Including Software)

The tester can be connected with a PC via the dedicated USB cable, as shown in Picture 23.

Download the corresponding PC software from the official website of Uni-Trend (refer to UNI-T Documents
Download Operation Guide), and install it according to the installation instructions.
Support Windows Vista, Win 7 or above system.
Use the USB cable to connect the tester with the PC. Short press the USB button on the tester and the
“USB” symbol will appear in the upper left corner of the LCD. The data of the tester is available for USB
communication now.
Run the PC software and click on the "Connect" option. Then the PC is available for USB communication
and the data of the tester will be displayed on the PC in real time.
Upload the data of the tester to the PC for saving, printing, analysis and other operation.
Data of the PC cannot be transmitted to the tester.

Picture 23

11. Use of Power Adapter

The power adapter operates at 220V/50Hz and has an output current of 1A. The tester can function properly
with the power adapter but cannot be charged. When the power adapter is enabled, power supply will be
automatically switched to the power adapter with battery power disconnected. Connection method of the power
adapter is shown in Picture 24.

Picture 24

Note: The power adapter is specially designed for UT516B. It cannot be replaced by other power adapters
as this may damage the tester or cause inaccurate measurement.

UT516B User Manual

UT516B User Manual

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Summary of Contents for UT516B

Page 1: ...P N 110401108715X UT516B Insulation Resistance Tester User Manual ...

Page 2: ...y Uni Trend guarantees that the product is free from any defect in material and workmanship within one year from the purchase date This warranty does not apply to damages caused by accident negligence misuse modification contamination or improper handling The dealer shall not be entitled to give any other warranty on behalf of Uni Trend If you need warranty service within the warranty period pleas...

Page 3: ... 1 5V alkaline batteries Lr14 5 1 inch industrial display 320 240 pixels Simultaneous display of insulation resistance and leakage current values in the test PC software for data analysis Green light indication for POWER button and red light warning for TEST button Auto discharge function When insulation resistance like a capacitive load is tested electric charges stored in capacitive circuits are...

Page 4: ...he tester from high voltage output do not press the TEST button when the test leads are connected to the tester Never open the battery cover during measurement Do not touch the circuit under test when measuring insulation resistance or right after measurement otherwise it may pose an electric shock Stop the test if contamination or carbonization which may impair insulation characteristics is found...

Page 5: ...cover USB port Power adapter port Buttons on the right Placement area for test leads and power adapter Insulation sampling test lead black Grounding guard test lead green High voltage output test lead red Dedicated power adapter High Voltage GUARD EARTH INSUL TIMING COMP DCV ACV SET USB OK TEST Press for 1s SAVE RECALL CLEAR CURRENT CLEAR ALL NOTE Do not measure charged bodies Disconnect all elect...

Page 6: ... 12000V test 5 level Battery voltage 14 1V for 500V 1000V 2500V 5000V 10000V 12000V test When the power adapter is used the battery indicator is automatically turned off Power adapter 15V for 500V 1000V 2500V 5000V 10000V 12000V test Battery level Power adapter Caution possibility of electric shock Analog bar PC communication DC voltage AC voltage DC voltage positive pole DC voltage negative pole ...

Page 7: ...te 2 Timing Measurement Set the insulation measurement countdown time from 60s Once the time is up the insulation measurement will be stopped automatically 3 DAR Measurement Set the DAR measurement Time 1 range 15s 299s 15s by default set the DAR measurement Time 2 range 60s 599s 60s by default 4 PI Measurement Set the PI measurement Time 1 range 1min 29min 1min by default set the PI measurement T...

Page 8: ... and Storage Number 001 999 will be displayed in the lower left corner of the LCD The storage number increases progressively from 001 to 999 After measurement short press the RECALL button to recall the stored measurement data and the last saved data will be displayed by default Short press the UP DOWN button to scroll through other data Note The high voltage output test cannot be conducted during...

Page 9: ...lease replace the batteries or insert the power adapter 8 1 2 Test Lead Connection 1 Insert the red test lead into the LINE terminal black into the EARTH terminal 2 Insert the green test lead into the GUARD terminal leave the GUARD terminal unconnected unless establishing a guard is necessary Note Do not insert the green or black test lead into the LINE terminal This cannot enable measurement and ...

Page 10: ... the leakage current portion will not be counted in the displayed value The reading value is only the insulation 3resistance from the conductor to the outer sheath of the cable Picture 6 Picture 7 Note Measurement using guard terminal is suitable for testing the entire circuit of a high voltage cable containing other high voltage equipment Connect the GUARD terminal to the leakage current electrod...

Page 11: ... and buttons to set the desired output voltage range Then long press 1s the TEST button to start insulation measurement he LCD displays the test value as shown in Picture 9 Note Once the insulation measurement is started the TEST button lights up red and the LCD displays the symbol Short press the TEST button to stop the insulation measurement The Discharging will be displayed on the LCD as shown ...

Page 12: ...stance measurement Once the TEST button is pressed down high voltage is present on the tip of test leads and on the circuit under test Do not use the tester if the battery cover is not covered up Do not make measurement in bad weather thunder Make sure the measured object is not energized or charged otherwise there is danger of electric shock or damage to the tester If the battery is too low to gu...

Page 13: ...asured object owing to applying high voltage In the insulation resistance test when short open circuit between the LINE and EAR TH GUARD is operated repeatedly or the measured object is broken down by high voltage and starts arc discharge it may not be able to test normally due to influence of variations in the strong electric field or interference caused at discharging energy stored in capacitors...

Page 14: ...rt circuit between the power cord and the metal tip of test lead to avoid personal injury Do not use the tester if the battery cover is not covered up 8 2 6 Test Settings 1 Measurement Voltage Setting The step value and settable voltage range at each measuring range are as follows Range Step Min Max N A N A N A 2 Continuous Measurement The measurement time is continuously accumulated during contin...

Page 15: ... in the Set Value 000MΩ will flash Press the UP DOWN button to adjust the value and LEFT RIGHT button to adjust the carry starting from the last flashing bit M by default Press the OK button to complete the desired set value for comparison Then press the TEST button to start measurement Picture 17 Picture 18 If the measured value is greater than the set value it will be deemed a pass and PASS will...

Page 16: ...e and display the DAR value as shown in Picture 21 Other time can be set in the Settings option to calculate the DAR value Picture 21 When the measurement time reaches the set time of polarization index PI the tester will automatically calculate and display the PI value System default PI 10 min insulation resistance 1 min insulation resistance Picture 22 Other time can be set in the Settings optio...

Page 17: ...2500V 6000V 10 10V of reading 0 0 2 5000V 12000V 10 10V of reading 0 0 2 12000V 3 5 3 5 9 Specifications 9 1 1 Insulation Resistance Measurement 9 1 Electrical Specifications Error limit a of reading b digits 1 year guarantee period Ambient temperature 23 C 5 C Ambient humidity 45 75 RH Rated voltage Max value Accuracy Over range display Short circuit current Output current 1mA output current 1 2m...

Page 18: ...IP67 with the hard case closed 9 3 General Specifications LCD display 320x240 pixels 5 1 inch Response time About 30s within 5 accuracy range about 60s or longer for accuracy range 10 the lower the output voltage the longer the response time Overload protection AC 1200V 10s Withstand voltage AC 8770V between lead terminal and housing 5s 50Hz 60Hz AC 6880V between measuring terminal and housing 5s ...

Page 19: ...Then the PC is available for USB communication and the data of the tester will be displayed on the PC in real time Upload the data of the tester to the PC for saving printing analysis and other operation Data of the PC cannot be transmitted to the tester Picture 23 11 Use of Power Adapter The power adapter operates at 220V 50Hz and has an output current of 1A The tester can function properly with ...

Page 20: ...th a soft cloth or sponge wetted with clear water Do not immerse the tester in water to avoid damage If the tester is wet please store it after drying If the tester is not in use for a long time please remove the batteries to avoid battery leakage and damage to the tester The maintenance and service must be implemented by qualified professionals or designated departments 13 2 Battery Replacement T...

Page 21: ...39 40 The contents of this manual are subject to change without notice UT516B User Manual UT516B User Manual ...

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