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Summary of Contents for UNI-T UT501E
- Page 1 UT501E User Manual UT501E Fast Insulation Resistance Tester User Manual...
- Page 2 UT501E User Manual Preface Thank you for purchasing this brand new product. In order to use this product safely and correctly, please read this manual thoroughly, especially the Safety Instructions part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.
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Page 3: Table Of Contents
UT501E User Manual Contents 1.Overview.......................... 1 2.Functions..........................1 3.Technical Specifications....................2 3.1Specifications for Insulation Resistance Test......……………….2 3.2Specifications for AC/DC Voltage Test..............3 3.3Specifications for Low Resistance Test............3 3.4Other Specifications.....................4 4.Accessories........................5 5.Safety Information......................5 6.Electrical Symbols......................6 7.External Structure......................7 8.Button Descriptions......................8 9.LCD Display........................9... -
Page 4: Overview
The Tester is suitable for fast insulation resistance measurement of electrical equipment or materials such as component, switch, appliance, and others. UT501E is an ideal tool for insulation test and calibration of various electrical equipment on production. -
Page 5: Technical Specifications
UT501E User Manual 15. Low resistance alarm (The buzzer sounds continuously if the insulation resistance is <4MΩ or the low resistance is <20Ω) 16. Data hold (Hold the data automatically when the insulation resistance test or low resistance test is stopped) 17. -
Page 6: Specifications For Ac/Dc Voltage Test
UT501E User Manual 0.20~40.0MΩ 0.50~200MΩ 1.00~1000MΩ 0.10~20.0MΩ ±(2%+6) ±(2%+6) ±(2%+6) ±(2%+6) Accuracy 20.1~200MΩ ±(5%+6) 40.1~500MΩ 201~2000MΩ 1001~4000MΩ ±(5%+6) ±(5%+6) ±(5%+6) 0.01MΩ (0.10~9.99 MΩ) Resolution 0.1 MΩ (10.0~99.9 MΩ) 1 MΩ (100~4000 MΩ) 10 Ω 1MΩ (Mega ohm) = 1000KΩ = ... -
Page 7: Other Specifications
UT501E User Manual Other Specifications Power supply Rechargeable lithium battery (11.1V/2600mAh) Charging adapter 12.6V/0.8A@10.0W Insulation output 100V, 125V, 250V, 500V, 1000V voltage Output voltage + (0%~10%) accuracy Insulation resistance 0.10MΩ~4000MΩ measurement range Short-circuit current <2mA Continuous √ (Default measurement mode) -
Page 8: Accessories
UT501E User Manual Alligator clip: 2 pcs Pen-shaped test probe: 2 pcs Operating altitude ≤2000m (Indoor use) Drop proof 1 m (without the testing function being affected) IP rating IP54 (Overall protection with cover closed) Pollution degree Class II Operating 0℃~35℃;... -
Page 9: Electrical Symbols
UT501E User Manual ● For voltage test, please pay attention to avoid shorting the metal part with test leads, otherwise it may cause personal injury. ● Do not exceed the maximum range during measurement. ● Do not press the “TEST” button before connecting the test leads. -
Page 10: External Structure
UT501E User Manual 7. External Structure 7.1 External structure Opening of flap over of protective cover USB: Type-C USB data transmission port Lithium battery charging port (12.6V/0.8A) Ω/Continuity: resistance (continuity) measurement terminal (single-ended red lead) COM terminal: High/low resistance and voltage measurement... -
Page 11: Button Descriptions
UT501E User Manual Figure 7.2 Auxiliary clips, probes, leads, charger and USB cable Alligator clips (red, black) Pen-shaped test probe Red and black test leads (silicone) Remote-controlled test lead (with “TEST” button on it) Dedicated lithium battery charger USB Type-C cable (for communication with PC) 8. -
Page 12: Lcd Display
UT501E User Manual Left arrow button; Enter/Exit time-set measurement Down arrow button; Turn on/off the backlight Right arrow button; Enter/Exit comparative OK button (Confirm the set value and deletion) Zero residual reading; Clear data; Turn on/off the buzzer warning OFF: Power off the Tester VAC/DC: AC/DC voltage test 100V (200MΩ): 100V insulation resistance test... -
Page 13: Button Functions
UT501E User Manual Dangerous operation (This symbol appears when external voltage is detected) Comparative measurement is PASS (The measured value is greater than or equal to the set value). Bluetooth symbol (Bluetooth communication is started) USB symbol (USB communication is started) - Page 14 UT501E User Manual position, the Tester can automatically measure and identify the AC/DC voltage and polarity. ● Low Resistance Position Set the rotary switch to “Ω” position to enter the low resistance measurement (continuity measurement) mode. ● SAVE/READ Button When short pressing this button, the present data is saved, the symbol “SAVE” blinks once, and the number of groups of saved data is displayed (maximum 99 groups of data can be saved).
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Page 15: Operate The Tester
UT501E User Manual ● Right Arrow Button ( ) In insulation resistance measurement mode: When entering time-set or comparative measurement and setting time value or comparative value, short press this button to switch the digit place rightwards. In insulation resistance measurement mode, long press this button to enter comparative measurement (with the symbols “COMP”... - Page 16 UT501E User Manual symbol “ ” is displayed on the LCD, as shown in Figures 11.2 and 11.3. Figure 11.2 Insulation resistance measurement is forbidden Figure 11.3 Low resistance measurement is forbidden Power identifier and voltage mapping table :(the segmented critical point voltage has about 5%...
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Page 17: Battery Charging
UT501E User Manual to the terminal correctly and if the test lead is damaged internally. Figure 11.4 Test lead shorted Battery Charging The Tester is embedded with a rechargeable lithium battery pack (11.1V, 2600mAh), please charge the Tester with the supplied dedicated lithium battery charger (12.6V, 0.8A), as shown in Figure 12.1. -
Page 18: Basic Measurements
UT501E User Manual removing the lithium battery pack. Basic Measurements 13.1 Insulation Resistance Measurement Warning: Please wear insulated gloves (corresponding to measurement category) and take protective measures before making connection and measurement。 Before test, please make sure that no voltage is present at the measured object, and please do not measure the insulation resistance of energized equipment or circuit。... -
Page 19: Continuous Measurement
UT501E User Manual 13.2 Continuous Measurement Power on the Tester, then set the rotary switch to corresponding high voltage position (the Tester enters the corresponding continuous insulation resistance measurement mode, as shown in Figure 13.2). Please connect the test leads and the measured object, and then start test. -
Page 20: Time-Set Measurement
UT501E User Manual Release the TEST button to stop measurement, then the high voltage output is turned off, the red indicator light is turned off, the buzzer sounds, and the Tester discharges electricity automatically. The LCD holds the present measurement value and other data, with the symbol “HOLD” displayed. -
Page 21: Comparative Measurement
UT501E User Manual Figure 13.6 Start time-set measurement When the time is up (“00:00”), the time-set measurement is stopped, the buzzer alarm is turned off, the red warning light is turned off, the Tester discharges electricity automatically, and the LCD holds the measurement value and other data automatically, as shown in Figure 13.7. - Page 22 UT501E User Manual Figure 13.8 Setting of comparative measurement Press the TEST button to start test, then the buzzer sounds, the red warning light is turned on, and the LCD shows the battery power, high voltage warning symbol, buzzer symbol, real-time high output voltage, tested insulation resistance, analog bar graph, “COMP”...
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Page 23: Voltage Measurement
UT501E User Manual Figure 13.10 The failed comparative measurement at 1.00MΩ is completed 13.5 Voltage Measurement Rotate the cutter to "VAC/DC" to enter the AC/DC voltage measurement mode (Figure 13.11). No external input voltage Or the input voltage is not within the valid measurement range, the interface displays "LO V"; when the input voltage is within the valid measurement range, the instrument automatically recognizes the AC/DC and DC polarity and displays "VAC/DC". - Page 24 UT501E User Manual Do not measure voltage of >600VAC or >±600VDC. Higher voltage (5%) may be displayed, but it may present a risk of damage to the Tester. Please pay particular attention to avoid electric shock for high voltage measurement.
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Page 25: Low Resistance Measurement
UT501E User Manual Tester indicates the measured voltage exceeds the range, as shown in Figure 13.14. Figure 13.14 The measured AC voltage exceeds the range 13.6 Low Resistance Measurement Set the rotary switch to “Ω” to enter the low resistance measurement mode (as shown in Figure 13.15). - Page 26 UT501E User Manual Figure 13.16 Test leads are shorted The measurement will be affected by the internal resistance of test leads, thus please zero the internal resistance. Short press the ZERO button to zero the resistance (with the symbol “ZERO”...
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Page 27: Save/Delete Data
UT501E User Manual Figure 13.19 Low resistance exceeds the range Connect the red test lead to the red clip or insert the red test rod to the “Ω/Continuity” terminal, and connect the black test lead to the black clip or insert the black test rod to the “COM” terminal. As shown in Figure 13.20. - Page 28 UT501E User Manual Short press the CLEAR button (with “CLR” displayed), then short press the OK button to delete the current data. Short press the CLEAR button again to cancel the deletion of current data (with “CLR” off). Long press the CLEAR button (with “CLR” displayed), then short press the OK button to delete all saved data.
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Page 29: Usb And Bluetooth Communications
UT501E User Manual he data of group 05 is read Figure 13.23 T Short press the CLEAR button to enter the state of deleting the data of group 05, or long press to enter the state of deleting all saved data, as shown in Figure 13.24. - Page 30 UT501E User Manual Figure 13.26 Real-time USB transmission in insulation measurement mode Long press the up arrow button again to enter the one-button USB upload mode (with the USB symbol flashing at 2 Hz), then long press the OK button to upload all saved data. After successful load, the USB symbol stops flashing and the Tester exits the one-button upload mode (enters the real-time upload mode).
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Page 31: Bluetooth And Usb Communications
UT501E User Manual Long press the up arrow button again to turn on the USB and Bluetooth communication functions at the same time (with the USB and Bluetooth symbols displayed), then long press the up arrow button again to exit the USB and Bluetooth communications. As shown in Figure 13.29. -
Page 32: Maintenance
UT501E User Manual For Android For IOS 14.3 Use a) Open the Bluetooth functions of both the Tester and mobile phone, tap the “iDMM2.0” APP icon on your phone desktop to open the software, then the software enters the navigation interface and searches nearby Bluetooth-enabled meters automatically.
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