UNI-T UT512 Operating Manual
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UNI-T UT512 Operating Manual

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Model UT512
OPERATING MANUAL

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Summary of Contents for UNI-T UT512

  • Page 1 Model UT512 OPERATING MANUAL...

  • Page 2: Table Of Contents

    Model UT512: OPERATING MANUAL Table of Contents 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...
  • Page 3 Model UT512: OPERATING MANUAL Title Page USB Interface 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...
  • Page 4 Model UT512: OPERATING MANUAL List of Tables Table Title Page Unpacking Inspection International Electrical Symbols Battery Indication Meter Front Description Meter Side Description Display Description Key Description...
  • Page 5 Model UT512: OPERATING MANUAL List of Figures Figure Title Page The Meter Front Structure The Meter Side Structure Display Voltages Measurement Insulation Resistance Measurement The Use of Power Adaptor USB Interface Connection Battery Replacement...

  • Page 6: Introduction

    Model UT512: OPERATING MANUAL Introduction Table 1. Unpacking Inspection Item Description Uni-Trend Model UT512 insulation resistance tester (hereafter, ìthe Meterî) is a handheld instrument English Operating Manual 1 piece designed primarily to make resistance/ insulation One plug test lead to one alligator 1 piece resistance measurement.

  • Page 7: Safety Information

    Model UT512: OPERATING MANUAL Safety Information Operating Caution identifies conditions that user needs to take extra care during operating the Meter This Meter complies with the standards IEC61010 safety measurement requirement: in pollution degree 2, International electrical symbols used on the Meter and overvoltage category (CAT.
  • Page 8 Model UT512: OPERATING MANUAL When carrying out insulation measurement, When performing resistance tests, remove all do not contact the circuit under test. power from the circuit to be measured and discharge all the power. Warning When servicing the Meter, use only the same...

  • Page 9: International Electrical Symbols

    Model UT512: OPERATING MANUAL International Electrical Symbols Battery Indication International symbols on the Meter and in this manual There is a battery indicator shows on the display upper are explained in Table 2. left hand corner. Below Table 3 is the explanation: Table 2.

  • Page 10: The Meter Structure

    Model UT512: OPERATING MANUAL The Meter Structure Below Figure 1 and Table 4 shows the Meter front structure and description Green Black Figure 1. The Meter Front Structure...

  • Page 11: Meter Front Description

    Model UT512: OPERATING MANUAL Table 4. Meter Front Description Up Button Scroll Button LINE: High Voltage output input terminal Emergency Stop (two plugs red test lead to one alligator clip) Data Clear the Display Backlight Button High voltage line shielding input terminal...

  • Page 12: Meter Side Description

    Model UT512: OPERATING MANUAL Below Figure 2 and Table 5 shows the Meter side Table 5. Meter Side Description structure and description Safety Shutter Power adaptor Input Terminal USB Port Figure 2. The Meter Side Structure...

  • Page 13: Display

    Model UT512: OPERATING MANUAL Display Table 6 and Figure 3 describe the display. Figure 3. Display...

  • Page 14: Display Description

    Model UT512: OPERATING MANUAL Table 6. Display Description Number Meaning Number Meaning Analogue bar graph Data recall is on Risk of electric shock Indicator for polarization index Battery life indicator Step symbol Indicator for timer Compare feature pass Timer 1 symbol...

  • Page 15: Key Functions

    Model UT512: OPERATING MANUAL Key Functions Table 7. Key Description value. ON/OFF Turn on or off the Meter. Press and hold the button for 1 second to turn the LOAD Press once to recall the first stored Meter on. Press again to turn off the value.
  • Page 16 Model UT512: OPERATING MANUAL Table 7. Key Description When set the timer duration for the increment the time. The maximum measurement of insulation resistance length of time is 30 minutes and 30 or polarization index, press to seconds, the Meter will automatically decrement the time.
  • Page 17 Model UT512: OPERATING MANUAL Table 7. Key Description COMP Set a pass / fail limit for insulation tests. The default value is 10M TIME Pres to step through continuous measurement, timed measurement and polarization index measurement in sequence. TEST Press to stop or start an insulation...

  • Page 18: Measurement Operation

    Model UT512: OPERATING MANUAL Measurement Operation A. Measuring Voltages Below section explains how to make measurements. Press and hold ON/OFF to turn on the Meter, press again to turn off the Meter. The Meter default range is 500V insulation resistance continuous measurement when turning on.
  • Page 19 Model UT512: OPERATING MANUAL Operating Catuion To avoid harms to you or damages to the Meter, please do not attempt to measure voltages higher than 600V or 600V rms, although readings may be obtained. Special care should be taken when measuring high voltage.

  • Page 20: Measuring Insulation Resistance

    Model UT512: OPERATING MANUAL B. Measuring Insulation Resistance Operating Caution When performing insulation resistance tests, remove all power from the circuit to be measured and discharge all the power. Operating the Meter must be very careful as it outputs dangerous voltage during measurement.

  • Page 21: A) Continuous Measurement

    Model UT512: OPERATING MANUAL To measure insulation resistance, set up the Meter as Figure 5 and do the following: Press TIME button to select continuous Press IR button to select insulation resistance measurement mode, there is no timer icon on the measurement.

  • Page 22: C) Polarization Index (Pi) Measurement

    Model UT512: OPERATING MANUAL Then press and hold TEST button for 2 second to or decrement by every 30 seconds. carry out timed measurement. TIME 1 and Then press and hold TEST button for 2 seconds to displayed and blinked on the LCD on every 0.5 carry out timed measurement.

  • Page 23: D) Compare Function

    Model UT512: OPERATING MANUAL Press COMP button to select compare feature. COMP symbol displays on the LCD.. Press buttons to set the compare value Below is the list in sequence of the compare value:10M , 20M , 30M , 40M , 50M , 60M ,...

  • Page 24: The Use Of Power Adaptor

    It is highly recommeded to take out all the batteries when you are using the power adaptor. Make sure the Meter is power off when you disconnect the UT512 power adaptor from the Meter. It is highly recommeded to use Uni-Trend supplied UT512 power adaptor to avoid dangerous.

  • Page 25: Usb Interface

    Model UT512: OPERATING MANUAL USB Interface Install the included software, the installation guide can be seen from the CD. Connecting the USB interface, see figure 7 Open the side safety shtter, then you will see there is a USB port.

  • Page 26: Maintenance

    Model UT512: OPERATING MANUAL Maintenance If the Meter is wet, dry it before use. This section provides basic maintenance information including battery replacement instruction. Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information.

  • Page 27: Replacing The Battery

    Model UT512: OPERATING MANUAL B. Replacing the Battery Operating Caution Donít mix to use old and new batteries. Be careful the polarity is correct when installing batteries. Do not use the Meter if the battery indicator ) shows a battery empty condition.

  • Page 28: Specifications

    Model UT512: OPERATING MANUAL Specifications Safety and Compliances Certification Compliances IEC 61010 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 -20 ~60...

  • Page 29: General Specifications

    Model UT512: 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 600mA Average: around 20mA Feature Summary Display Backlight Bright backlight for clear readings in poorly lighted areas.

  • Page 30: Detailed Accuracy Specifications

    Model UT512: OPERATING MANUAL Detailed Accuracy Specifications Accuracy: ([% of reading] + [number of least significant digits), guarantee for 1 year. Operating temperature: 18 ~28 Relative humidity: 45~75%RH A. Voltage Measurement DC Voltage AC Voltage 30 ~ 600V 30V~600V (50/60Hz)

  • Page 31: Insulation Resistance Measurement

    Model UT512: OPERATING MANUAL B. Insulation Resistance Measurement Output Voltage 500V 1000V 1500V 2500V Display Range 2M ~10.0G 5M ~20.0G 10M ~100G 0.5M ~5.0G Open Circuit Voltage DC1000V + 20%, -0% DC 2500V + 20%, -0% DC2500V + 20%, -0%...
  • Page 32 Model UT512: OPERATING MANUAL *END* This operating manual is subject to change without notice.
  • Page 33 Model UT512: OPERATING MANUAL Copyright 2007 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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