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Model UT511: OPERATING MANUAL

Figure Title

Page

1.

The Meter Front Structure

2.

The Meter Side Structure

3.

The Display

4.

Voltage Measurement

5.

Insulation Resistance Measurement

6.

Low Resistance Measurement

7.

The Use of Power Adaptor

8.

Battery Replacement

9

10

10

15

16

20

21

23

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Summary of Contents for UT511

Page 1: ...Model UT511 OPERATING MANUAL ...

Page 2: ...tery 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 C Low Resistance Measurement 5 5 5 7 8 8 9 10 12 15 15 16 17 18 18 19 20 ...

Page 3: ...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: ...ERATING 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 7 8 9 10 11 12 ...

Page 5: ... Title Page 1 The Meter Front Structure 2 The Meter Side Structure 3 The Display 4 Voltage Measurement 5 Insulation Resistance Measurement 6 Low Resistance Measurement 7 The Use of Power Adaptor 8 Battery Replacement 9 10 10 15 16 20 21 23 ...

Page 6: ... missing or damage please contact your dealer immediately Safety Information This Meter complies with the standards IEC61010 safety measurement requirement in pollution degree 2 overvoltage category CAT III 600V CAT II 1000V and double insulation CAT II Local level appliance PORTABLE EQUIPMENT etc with smaller transient voltage overvoltages than CAT III CAT III Distribution level fixed installatio...

Page 7: ...inger guards on the leads Do not use the Meter with any parts or cover removed When carrying out insulation measurement do not contact the circuit under test Warning l l l l l Do not use the Meter if it is damaged or metal part is exposed Look for cracks or missing plastic Be careful when working above 30V rms 42V ac rms and 60V DC Such voltages pose a shock hazard Discharge all loading of circuit...

Page 8: ...he 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 explosive inflammable and strong magnetic field The performance of the Meter may deteriorate after dampened Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing No abrasive and solvent should be used to prevent the sur...

Page 9: ...y insulation resistance measurement The time period starts immediately following any measurement Battery Indication There is a battery indicator shows on the display upper left hand corner Below Table 3 is the explanation Battery Voltage 8 5V or less It means the battery is empty don t use the Meter as it cannot guarantee accuracy 8 6V 9 0V It means the battery is nearly empty replacing battery is...

Page 10: ...ency stop Data Clear the Display Backlight Button Down Button On Off Button Compare Button Insulation Resistance Button Voltages measurement Button Timer Button Low Resistance measurement Button 12 13 14 15 16 17 18 19 20 21 22 Test Button Step Button Data Store Button Data Recall Button Scroll Button Up Button LINE Resistance input terminal COM Voltage input terminal EARTH Resistance input termin...

Page 11: ...and Table 5 shows the Meter side structure and description Figure 2 The Meter Side Structure Side View Table 5 Meter Side Description 1 Safety Shutter 2 Power adaptor Input Terminal Display Table 6 and Figure 3 describe the display Figure 3 Display ...

Page 12: ...for timer Step symbol Indicates selected pass fail compare value Indicates for negative reading Timer 1 symbol Timer 2 symbol Data store is on Number 12 13 14 15 16 17 18 19 20 21 Meaning Data recall is on Indicator for polarization index Unit symbols The continuity buzzer is on Compare feature pass Analogue bar graph Risk of electric shock Compare feature fail Indicator for power adaptor Battery ...

Page 13: ...store the next measurement value l Press once to recall the first stored value l Press again to exit Load feature l Load feature can only be used when there is no high voltage output l Underinsulationresistancemeasurement mode press to select one voltage range up l Under load mode press to recall the previous stored value l Underinsulationresistancemeasurement mode press to select one voltage rang...

Page 14: ...me is 30 minutes the Meter will automatically carry out measurement l When use the compare feature measuring insulation resistance press to increment a resistance comparing value l After polarization index measurement press to display polarization index TIME 2 insulation resistance value and TIME 1 insulation resistance value in sequence Press to display S1 S2 S3 in sequence l When the Meter is un...

Page 15: ...l limit for insulation tests The default value is 100M 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 COMP TIME TEST Ho Table 7 Key Description Press to initiate low resistance measurement Pres to initiate voltages measurement Lo DVC...

Page 16: ...pt to measure voltages higher than 1000V DC or 750V AC although readings may be obtained To measure voltages set 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 test lead into the V terminal and the black test lead into the COM terminal Connect the red and black alligator clip to the circuit to be measured During m...

Page 17: ...t 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 Note B Measuring Insulation Resistance Figure 5 Insulation Resistance Measurement Red Black ...

Page 18: ...est leads even after it has been removed from the circuit until voltages are all released Caution To measure insulation resistance set up the Meter as Figure 5 and do the following 1 2 3 4 5 Press HO button to select insulation resistance measurement Press and button to select voltages of 100V 250V 500V or 1000V Insert the red test lead into the LINE terminal and the black test lead into EARTH ter...

Page 19: ...ill be automatically stopped The LCD displays the insulation resistance reading l l l l Press TIME button to select timed measurement mode the LCD displays TIME 1 and symbols Press and STEP buttons to set the time 00 05 29 30 Press TIME button again TIME 2 PI and symbols appear on the LCD Press and STEP buttons to set the time 00 10 30 00 Then press and hold TEST button for 1 second to carry out t...

Page 20: ... 2 0 1 0 Warning 1 0 or less Bad Press COMP button to select compare feature COMP symbol displays on the LCD Press and STEP buttons to set the compare value The minimum value is 1M The maximum value is the maximum tested voltage allowable measurement value Press and hold TEST button for 1 second to carry out the measurement The NG symbol will display if the insulation resistance value is smaller t...

Page 21: ...nd do the following Press LO button to select low resistance measurement Insert the red test lead into the LINE terminal and the black test lead into EARTH terminal Connect the red and black alligator clip to the circuit to be measured When the resistance is less than 30 the buzzer sounds This range can test LED diode Connect the anode LED diode to the red test lead the LED diode will light up if ...

Page 22: ...hly 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 600mA 1 2 3 4 Figure 7 The Use of Power Adaptor Caution If you want to choose power adaptor for power supply please use special power ad...

Page 23: ...ith 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 temperature explosive inflammable and strong magnetic field If the Meter is wet dry it before use l l l l l l B Replacing the Battery Warning To avoid electric shock rem...

Page 24: ...rom the terminals Remove the screw from the battery compartment and separate the battery compartment from the case bottom There are 8pcs of 1 5V R14 carbon battteries in the meter except this it can support 1 5V LR14 alkalescence batteries and the special power apapter which our company provided Rejoin the case bottom and battery compartment and reinstall the screw l l l l ...

Page 25: ...d Physical Specifications 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 4 140 85 10 40 below 90 20 60 8pcs of 1 5V R14 or LR14 batteries or DC15V power adaptor DC15V power adaptor is optionally at extra cost 202 x 155 x 94 mm Approx 2kg including battery ...

Page 26: ...mA Feature Summary Display Backlight Autorange Warning Voltage COMP Measurement PI Measurement Bright backlight for clear readings in poorly lighted areas 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 27: ...1000V AC Voltage 30V 750V 50 60Hz 1V 2 3 30 100V 2 5 100 750V 2 3 B Insulation Resistance Measurement Output Voltage Display Range Open Circuit Voltage Test Current Short Circuit Accuracy 100V 0 1M 99 9M 100 500M DC100V 20 0 1mA 1 2mA 100k 250V 0 5M 99 9M 100 999M 1 00 1 99G DC250V 20 0 1mA 1 2mA 250k 500V 1M 99 9M 100 999M 1 00 3 99G DC 500V 20 0 1mA 1 2mA 500k 1000V 2M 99 9M 100 999M 1 00 10 00G...

Page 28: ...is les than 5MΩ the testing time cannot exceed 10 seconds Caution C Low Resistance Measurement Function Measurement Range Resolution Accuracy Maximum open circuit voltage Buzzer Overload Protection Resistance 0 1Ω 999 9Ω 0 1Ω 1 3 Around 2 8V Open at less than 30Ω 220V rms 10 seconds ...

Page 29: ...28 Model UT511 OPERATING MANUAL This operating manual is subject to change without notice END ...

Page 30: ...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 Headquarters Uni Trend Group Limited Rm901 9 F Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon Hong Kong Tel 852 2950 9168 Fax 852 2950 9303 Email info uni trend com http www uni trend com ...

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