UNI-T UT526, Operating Manual

Page 1: ...Operating Manual UT525 526 Electrical Testers...

Page 2: ...Item Page I Safety Precautions II Features III Specifications IV Front View of the Instrument V Function of Keys and Dial Plate VI Testing Preparation VII Earth Testing VIII RCD Testing IX Voltage Tes...

Page 3: ...and microprocessor chips which can mainly test parameters of residual current device RCD earth insulation resistance DCV and ACV with features of full functions high accuracy stable performance easy a...

Page 4: ...Please read following instructions before using Warning Please read and understood the Instructions before using Please follow the requirements of the Instructions keep the Instructions well for furt...

Page 5: ...ith AC440V DC440V or above Do not test in the place with inflammable conditions Do not operate the instrument if the surface of the instrument is wet or the hand is wet During testing do not touch the...

Page 6: ...ning cover of the battery please make sure the instrument is turned off Note Before testing resistance the circuit to be tested must be discharged completely and separated from the power circuit absol...

Page 7: ...high temperature high humidity inflammable or explosive matters and high electromagnetic field Do not clean the cover of the instrument with wet cloth of detergent do not use abrasives or solvent Whe...

Page 8: ...strument has double insulation or reinforced insulation DC AC Earth Designed and manufactured strictly according to IEC61010 safety standard the instrument meets with Over Voltage Standard CATIII600V...

Page 9: ...75 RH UT525 UT526 RCD testing indexes RCD testing current 10mA 30mA 100mA 300mA Applied voltage Voltage 220V 10 frequency 45Hz 65Hz Accuracy tolerance RCD testing current accuracy tolerance with AC 22...

Page 10: ...Rated voltage About 5 0V Test range 0 01 200 Test current 200mA for 0 00 2 00 Accuracy tolerance 0 01 200 2 5 UT526 earth testing indexes Rated voltage About 5 0V Test range 0 01 2 000 Test current 2...

Page 11: ...esting indexes Rated voltage 100V 250V 500V Test range 0 05M 200M Open circuit voltage DC 100V 10 DC 250V 10 DC 500V 10 Rated test current 100K load 250K load 500K load Short circuit 1 8mA Accuracy to...

Page 12: ...es Rated voltage 250V 500V 1 000V Test range 0 05M 200M 0 05M 300M 0 05M 500M Open circuit voltage DC 250V 10 DC 500V 10 DC 1 000V 10 Rated test current 500K load 1M load 250K load Short circuit 1 8mA...

Page 13: ...range 0 440V 0 440 50 60Hz just for reference to that less than 10V Resolution 1V Accuracy tolerance 2 3 UT525 UT526 frequency testing indexes Test range 20Hz 100Hz Resolution 1Hz Accuracy tolerance...

Page 14: ...lay function electric unit signs Work conditions 0 40 85 RH or less Storage condition 20 60 90 RH or less Dimensions 150mm L 100mm W 71mm D Current consumption about 50mA 1 000V output about 10mA in g...

Page 15: ...voltage testing 2 E jack of earth for RCD testing 3 N jack of null wire terminal for RCD testing and input negative terminal for voltage testing 4 LINE jack of high voltage output for insulation resis...

Page 16: ...15 UT525 526 Operating Manual Picture 1...

Page 17: ...test 5 When dial plate points to RCD V enter RCD testing and AC and DC voltage testing 6 When dial plate points to UT525 output voltage 100V 250V 500V or UT526 output voltage 250V 500V 1 000V select...

Page 18: ...to Continuly and then press TEST key to start earth test Note 1 To keep the accuracy of test return to zero operation must be made return to zero operation by pen in state of earthing make the two pe...

Page 19: ...18 UT525 526 Operating Manual Picture 2...

Page 20: ...and blue testing wires of three wire plug with the red L green E and blue N ports respectively and then insert the three wire plug into the 220V civil jack and press TEST key Note 1 During testing RCD...

Page 21: ...20 UT525 526 Operating Manual Picture 3...

Page 22: ...ator clips or probes to the circuit to be tested firmly press TEST key the system will judge the AC or DC voltage automatically and the voltage and frequency will be displayed on LCD Connection method...

Page 23: ...tage but the instrument may be damaged 2 During testing high voltage especially avoid electric shock 3 After completing all the testing cut the connection between testing wires and the circuit tested...

Page 24: ...23 UT525 526 Operating Manual Picture 4...

Page 25: ...high voltage input and do not test the insulation resistance after outputting high voltage Press to make the dial plate point to UT525 100V 250V 500V or UT526 250V 500V 1 000V 1 Before testing insula...

Page 26: ...e test light become red After completing testing press TEST key to unlock to stop testing Note 1 Before testing make sure that the circuit to be tested is uncharged do not test the insulation of charg...

Page 27: ...26 UT525 526 Operating Manual Picture 5...

Page 28: ...trument before replacing battery 2 When the battery cover is open do not test 3 When sign is displayed on LCD it means the battery needs to be replaced please operate as following 1 Turn off the power...

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Page 30: ...strument damage do not dip the instrument into water When the instrument is wet make it dry and then store When the instrument needs to be checked or repaired please let qualified professional mainten...

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