UNI-T UT511 Operating Manual
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UNI-T UT511 Operating Manual

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Model UT511
OPERATING MANUAL

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Summary of Contents for UNI-T UT511

  • Page 1 Model UT511 OPERATING MANUAL...

  • Page 2: Table Of Contents

    Model UT511: OPERATING MANUAL TITLE PAGE Introduction Unpacking the Meter Safety Information International Electrical Symbols Battery Saver (Sleep Mode) Battery Indication The Meter Structure Display Key Functions Measurement Operation A.Measuring Voltages B.Measuring Insulation Resistance a) Continuous Measurement b) Timed Measurement...
  • Page 3 Model UT511: OPERATING MANUAL TITLE PAGE The Use of Power Adaptor Maintenance A. General Service B. Replacing the Battery Specifications Safety and Compliances Physical Specifications General Specifications Feature Summary Detailed Accuracy Specifications A. Voltage Measurement B. Insulation Resistance Measurement C. Low Resistance Measurement...
  • Page 4 Model UT511: OPERATING MANUAL Table Title Page Unpacking Inspection International Electrical Symbols Battery Indication Meter Front Description Meter Side Description Display Description Key Description...
  • Page 5 Model UT511: OPERATING MANUAL Figure Title Page The Meter Front Structure The Meter Side Structure The Display Voltage Measurement Insulation Resistance Measurement Low Resistance Measurement The Use of Power Adaptor Battery Replacement...

  • Page 6: Introduction

    Model UT511: OPERATING MANUAL Introduction Safety Information Uni-Trend Model UT511 insulation resistance tester This Meter complies with the standards IEC61010 safety (hereafter, “the Meter”) is a handheld instrument measurement requirement: in pollution degree 2, designed primarily to make resistance/ insulation overvoltage category (CAT.
  • Page 7 Model UT511: OPERATING MANUAL International electrical symbols used on the Meter and Warning in this Operating Manual are explained on page 4~5. Do not use the Meter if it is damaged or metal part is exposed. Look for cracks or missing Danger plastic.

  • Page 8: International Electrical Symbols

    Model UT511: OPERATING MANUAL International Electrical Symbols When servicing the Meter, use only the same International symbols on the Meter and in this manual model number or identical electrical are explained in Table 2. specifications of test leads and power adaptor.

  • Page 9: Battery Saver (Sleep Mode)

    Model UT511: OPERATING MANUAL Battery Saver (Sleep Mode) Battery Indication There is a battery indicator shows on the display upper The Meter enters the Sleep Mode and blanks the display left hand corner. Below Table 3 is the explanation: if there is no button press for 15 minutes. This is done to conserve battery power.

  • Page 10: The Meter Structure

    Model UT511: OPERATING MANUAL The Meter Structure Table 4. Meter Front Description Below Figure 1 and Table 4 shows the Meter front Test Button structure and description Scroll Button Step Button Emergency stop Data Store Button. Data Clear the Data Recall Button...

  • Page 11: Display

    Model UT511: OPERATING MANUAL Below Figure 2 and Table 5 shows the Meter side Display structure and description Table 6 and Figure 3 describe the display. Figure 2. The Meter Side Structure (Side View) Figure 3. Display Table 5. Meter Side Description...

  • Page 12: Display Description

    Model UT511: OPERATING MANUAL Table 6. Display Description Number Meaning Number Meaning Indicator for DC voltage Data recall is on Indicator for data store full Indicator for polarization index Indicator for clearing Unit symbols Indicator for AC voltage The continuity buzzer is on...

  • Page 13: Key Functions

    Model UT511: OPERATING MANUAL Key Functions Table 7. Key Description l Under insulation resistance measurement ON/OFF Turn on or off the Meter. Press and hold the button for 1 second to turn the Meter mode: press to select one voltage range up.
  • Page 14 Model UT511: OPERATING MANUAL Table 7. Key Description l After polarization index measurement, l When compare feature measuring press to display polarization index, insulation resistance, press to TIME 2 insulation resistance value decrement a resistance comparing and TIME 1 insulation resistance value.
  • Page 15 Model UT511: OPERATING MANUAL Table 7. Key Description l When the Meter is under compare STEP Press to initiate low resistance mode: measurement S1 means increment of 1, then Pres to initiate voltages measurement each press of increase 1 or /ACV decrease 1.

  • Page 16: Measurement Operation

    Model UT511: OPERATING MANUAL Measurement Operation Caution Below section explains how to make measurements. l Special care should be taken when measuring A. Measuring Voltages high voltage. Warning l To avoid harms to you or damages to the Meter, Black...

  • Page 17: B.measuring Insulation Resistance

    Model UT511: OPERATING MANUAL Note B. Measuring Insulation Resistance l When voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test and remove testing leads away from the input terminals of the Meter.

  • Page 18: A) Continuous Measurement

    Model UT511: OPERATING MANUAL To measure insulation resistance, set up the Meter as Caution Figure 5 and do the following: When performing insulation resistance tests, Press HO button to select insulation resistance remove all power from the circuit to be measured measurement.

  • Page 19: B) Timed Measurement

    Model UT511: OPERATING MANUAL Press TEST button to close the insulation resistance measurement voltage when measurement is Press TIME button to select timed measurement completed. TEST button lights off , disappears. mode, the LCD displays TIME 1 and symbols. The LCD shows the current insulation resistance...

  • Page 20: D) Compare Function

    Model UT511: OPERATING MANUAL Press , to set through the polarization index, TIME 2 insulation resistance reading and TIME 2 insulation resistance reading. Information: PI = 3 minutes ~10 minutes reading / 30 second ~1 minutes reading 4 or more 2.0~1.0...

  • Page 21: Low Resistance Measurement

    Model UT511: OPERATING MANUAL C. Low Resistance Measurement Caution l When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. To measure low resistance, set up the Meter as Figure 6 and do the following: Press LO button to select low resistance measurement..

  • Page 22: The Use Of Power Adaptor

    It is highly recommed to take out all the batteries when you are using the power adaptor. Make sure the Meter is power off when you disconnect the UT511 power adaptor from the Meter. (Input voltage 230VAC, Frequency 50/60Hz, Input current 50mA, Output voltage DC 15V, MAX current...

  • Page 23: Maintenance

    Model UT511: OPERATING MANUAL Maintenance B. Replacing the Battery This section provides basic maintenance information Warning including battery replacement instruction. To avoid electric shock, remove all the test leads Warning from the Meter when replacing the batteries. Do not attempt to repair or service your Meter unless...

  • Page 24: Battery Replacement

    Model UT511: OPERATING MANUAL Follow Figure 8 and proceed as follows to replace the battery: Turn the Meter to OFF and remove all connections from the terminals. Remove the screw from the battery compartment, and separate the battery compartment from the case bottom.

  • Page 25: Specifications

    Model UT511: OPERATING MANUAL Specifications Safety and Compliances Certification Compliances IEC 61010 CAT.II 1000V, CAT.III 600V overvoltage and double insulation standard Physical Specifications Display (LCD) Digital: 9999 counts Analog bar graph. Operating Temperature -10 ~40 (14 ~104 ) Storage Temperature...

  • Page 26: General Specifications

    Model UT511: OPERATING MANUAL General Specifications Range Auto Overloading Display OL on insulation resistance range Battery Indicator Display Icon Display Equips with function and battery indicator icons. Current Consumption Maximum: around 90mA Average: around 20mA Feature Summary Display Backlight Bright backlight for clear readings in poorly lighted areas.

  • Page 27: Detailed Accuracy Specifications

    Model UT511: OPERATING MANUAL Detailed Accuracy Specifications Accuracy: ([% of reading] + [number of least significant digits), guarantee for 1 year. Operating temperature: 18 Relative humidity: 45~75%RH A. Voltage Measurement DC Voltage AC Voltage Measurement Range 30 ~ 1000V 30V~750V (50/60Hz)

  • Page 28: Low Resistance Measurement

    Model UT511: OPERATING MANUAL Caution At any output voltage, when the tested resistance is les than 5M , the testing time cannot exceed 10 seconds. C. Low Resistance Measurement Function Resistance Measurement Range 0.1 ~999.9 Resolution Accuracy (1%+3) Maximum open circuit voltage Around 2.8V...
  • Page 29 Model UT511: OPERATING MANUAL *END* This operating manual is subject to change without notice.
  • Page 30 Model UT511: OPERATING MANUAL Copyright 2006 Uni-Trend Group Limited. All rights reserved. Manufacturer: Uni-Trend Technology (Dongguan) Limited Dong Fang Da Dao Bei Shan Dong Fang Industrial Development District Hu Men Town, Dongguan City Guang Dong Province China Postal Code: 523 925...

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