UNI-T UT512, Operating Manual

Page 1: ...Model UT512 OPERATING MANUAL ...

Page 2: ...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 c Polarization Index PI Measurement d Compare Function The Use of Power Adaptor 5 5 6 8 8 8 9 12 14 17 17 19 20 20 21 22 23 ...

Page 3: ...itle 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: ...MANUAL Table Title Page 1 Unpacking Inspection 2 International Electrical Symbols 3 Battery Indication 4 Meter Front Description 5 Meter Side Description 6 Display Description 7 Key Description 5 8 8 10 11 13 14 List of Tables ...

Page 5: ... Page 1 The Meter Front Structure 2 The Meter Side Structure 3 Display 4 Voltages Measurement 5 Insulation Resistance Measurement 6 The Use of Power Adaptor 7 USB Interface Connection 8 Battery Replacement 9 11 12 17 19 23 24 26 List of Figures ...

Page 6: ...8 9 Description English Operating Manual One plug test lead to one alligator clip Black colour One plug test lead to one alligator clip Green colour Two plugs test lead to one alligator clip Red colour 1 5V Battery LR14 R14 Tool Box USB Interface Cable Software Power adaptor input voltage 230V 50 60Hz 50mA output DC14 5V 600mA optionally available at extra cost Qty 1 piece 1 piece 1 piece 1 piece ...

Page 7: ...at may damage the Meter and carrying out accurate measurement Danger Use of instrument in a manual not specifed by the manufactuer may impair safety features protection provided by the equipment Read the following safety information carefully before using or servicing the instrument Do not apply more than 600V Do not use the Meter around explosive gas vapor or dust Do not use the Meter in a wet en...

Page 8: ...uit to be measured and discharge all the power When servicing the Meter use only the same model number or identical electrical specifications of test leads and power adaptor Do not use the Meter if the battery indicator shows a battery empty condition Take the battery out from the Meter if it is not used for a long time Do not use or store the Meter in an environment of high temperature humidity e...

Page 9: ...ay if there is no button press for 15 minutes This is done to conserve battery power The Meter comes out of Sleep Mode when ON OFF button is pressed and hold for 1 second Battery Indication There is a battery indicator shows on the display upper left hand corner Below Table 3 is the explanation Battery Voltage 5 9V 10 6V It means the battery is empty donít use the Meter as it cannot guarantee accu...

Page 10: ...9 Model UT512 OPERATING MANUAL The Meter Structure Below Figure 1 and Table 4 shows the Meter front structure and description Figure 1 The Meter Front Structure Green Black Red ...

Page 11: ...Recall Button Scroll Button 17 18 19 20 21 22 Up Button LINE High Voltage output input terminal two plugs red test lead to one alligator clip High voltage line shielding input terminal two plugs red test lead to one alligator clip GUARD Grounding protection input terminal one plug black test lead to one alligator clip EARTH High resistance measurement input terminal one plug green test lead to one...

Page 12: ... OPERATING MANUAL Below Figure 2 and Table 5 shows the Meter side structure and description Figure 2 The Meter Side Structure Table 5 Meter Side Description 1 Safety Shutter 2 Power adaptor Input Terminal 3 USB Port ...

Page 13: ...12 Model UT512 OPERATING MANUAL Display Table 6 and Figure 3 describe the display Figure 3 Display ...

Page 14: ... Indicates selected pass fail compare value Indicator for power adaptor The continuity buzzer is on Indicator for data store full Data store is on Number 12 13 14 15 16 17 18 19 20 21 Meaning Data recall is on Indicator for polarization index Step symbol Compare feature pass Compare feature fail Indicator for DC voltage Indicator for AC voltage Indicates for negative reading Unit symbols Indicator...

Page 15: ...f stored reading is 18 When the stored readings memory is full the Meter shows FULL and stop storing Press and hold CLEAR to clear the stored value in order to store the next measurement value LOAD Key Functions ON OFF E STOP CLEAR SAVE Press once to recall the first stored value Press again to exit Load feature Load feature can only be used when there is no high voltage output When the insulation...

Page 16: ... resistance value in sequence When set the timer duration for the measurement of insulation resistance or polarization index press to increment the time The maximum length of time is 30 minutes and 30 seconds the Meter will automatically carry out measurement When use the compare feature measuring insulation resistance press to increment a resistance comparing value After polarization index measur...

Page 17: ...0M Pres to step through continuous measurement timed measurement and polarization index measurement in sequence Press to stop or start an insulation resistance test Press to initiate insulation resistance measurement Press to initiate DC voltage measurement Pres to initiate AC voltage measurement COMP TIME TEST IR DCV ACV ...

Page 18: ... Voltages Figure 4 Voltages Measurement 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 Red Green ...

Page 19: ...t up the Meter as Figure 4 and do the following Press DCV or ACV button to select DC voltage or AC voltage measurement Insert the red and green test lead into the tested circuit When measuring DC voltage if the red test lead is negative voltage ì ì symbol will show on the display 1 2 3 When voltage measurement has been completed disconnect the connection between the testing leads and the circuit u...

Page 20: ...t make sure the tested object is firmed clipped hands are away from the clips then press TEST button to put high voltage Do not short circuit the testing leads during high voltages output or test insulation resistance after high voltages output This kind of incorrect operating may cause sparking and fire which damages the Meter and harms to you Do not measure over 10 seconds when 500V measure resi...

Page 21: ...om LINE terminal Choose below insulation resistance measurement mode 1 2 3 4 5 6 Press TIME button to select continuous measurement mode there is no timer icon on the LCD Press and hold TEST button for 1 second to carry out continuous measurement Output insulation resistance testing voltage TEST button light up blinks on every 0 5 seconds Press TEST button to close the insulation resistance measur...

Page 22: ...uttons to set the time 00 15 15 30 Within 1 minute the time increment or decrement by every 10 seconds Afterward the time increment or decrement by every 30 seconds Then press and hold TEST button for 2 seconds to carry out timed measurement TIME 1 and are displayed and blinked on the LCD on every 0 5 seconds before TIME 1 set time is reached TIME 2 and are displayed and blinked on the LCD on ever...

Page 23: ...value 10MΩ 20MΩ 30MΩ 40MΩ 50MΩ 60MΩ 70MΩ 80MΩ 90MΩ 100MΩ 200MΩ 300MΩ 400MΩ 500MΩ 600MΩ 700MΩ 800MΩ 900MΩ 1GΩ 2GΩ 3GΩ 4GΩ 5GΩ 6GΩ 7GΩ 8GΩ 9GΩ 10GΩ 20GΩ 330GΩ 40GΩ 50GΩ 60GΩ 70GΩ 80GΩ 90GΩ 100GΩ Press and hold TEST button for 2 seconds to carry out the measurement The NG symbol will display if the insulation resistance value is smaller than resistance value Otherwise GOOD symbol will be displayed ...

Page 24: ...he Meter is power off and Insert the UT512 power adaptor to the input terminal 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 1 2 3 4 5 Figure 6 The Use of Power Adaptor ...

Page 25: ... figure 7 Figure 7 USB Interface Connection Install the included software the installation guide can be seen from the CD Open the side safety shtter then you will see there is a USB port Insert the included USB cable to the Meterís USB port and the other end to the computer 1 2 3 ...

Page 26: ...formation A General Service Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents To clean the terminals with cotton bar with detergent as dirt or moisture in the terminals can affect readings Turn the Meter to OFF when it is not in use Take out the battery when it is not using for a long time Do not use or store the Meter in a place of humidity high temp...

Page 27: ...f the battery indicator shows a battery empty condition Do you carry out measuring during the battery compartment is open Figure 8 Battery Replacement 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 Replace with 8p...

Page 28: ...ns Display LCD Operating Temperature Storage Temperature Relative Humidity Battery Type Dimensions HxW xL Weight Digital 9999 counts Analog bar graph 10 40 14 104 20 60 4 152 85 10 40 below 90 20 60 8pcs of 1 5V LR14 batteries or power adaptor input voltage 230V 50 60Hz 50mA input DC14 5V 600mA Power adaptor is optionally at extra cost 202 x 155 x 94 mm Approx 2kg including battery ...

Page 29: ...and Recall Autorange Warning Voltage COMP Measurement PI Measurement TIME Bright backlight for clear readings in poorly lighted areas Via USB interface 18 The Meter automatically selects best range and red light will on Auto release voltage Use the Compare function to set a pass fail compare level for the insulation measurements Polarization Index is the ratio of insulation resistance You can pre ...

Page 30: ...el 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 AC Voltage 30V 600V 50 60Hz 1V 2 5 100V 2 8 100V 2 5 ...

Page 31: ... 5MΩ 5 0GΩ DC 500V 20 0 1mA 1 2mA 500kΩ 1000V 2M 10 0G DC1000V 20 0 1mA 1 2mA 1M 1500V 5M 20 0G DC 2500V 20 0 1mA 1 2mA 1 5M 2500V 10M 100G DC2500V 20 0 1mA 1 2mA 2 5M Less than 2 0mA 100k 100M 3 5 100M 10G 5 5 10G 100G 10 5 At any output voltage when the tested resistance is les than 10M the testing time cannot exceed 10 seconds continuously Operating Caution ...

Page 32: ...31 Model UT512 OPERATING MANUAL This operating manual is subject to change without notice END ...

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