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Copyright 2001 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

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: [email protected]
http://www.uni-trend.com

Model UT58A/B/C: OPERATING MANUAL

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Содержание UT58A

Страница 1: ...Diodes E Testing for continuity F Capacitance measurement G Temperature Measurement UT58B UT58C only H Measuring Transistor I Frequency Measurement UT58C only Sleep Mode Operation of Hold Mode General Specifications Accuracy Specifications A DC Voltage B AC Voltage C DC Current D AC Current E Resistance Test F Diodes Test G Continuity Test H Capacitance I Temperature UT58B UT58C only J Transistor ...

Страница 2: ...Title Page K Frequency UT58C only Maintenance A General Services B Replacing the Fuses C Replacing the Battery 31 32 32 32 33 Model UT58A B C OPERATING MANUAL 2 ...

Страница 3: ...with ex large LCD steady operations fashionable structure and highly reliable hand held measuring instrument The Meter uses large scale of integrated circuit and has full range overload protection The Meter not only can measure AC DC Voltage AC DC Current Resistance Capacitance Temperature Frequency Transistor Diode and Continuity but also have Data Hold Full Icon Display Overload Protection and S...

Страница 4: ...ontact your dealer immediately 1 English Operating Manual 2 Test Lead 3 Multi Purpose Socket 4 Point Contact Temperature Probe UT58B UT58C only 5 9V Battery NEDA 1604 6F22 or 009P 4 Model UT58A B C OPERATING MANUAL Item Description Qty 1 piece 1 pair 1 piece 1 piece 1 piece ...

Страница 5: ...with smaller transient overvoltages than CAT IV Use the Meter only as specified in this operating manual otherwise the protection provided by the Meter may be impaired In this manual a Warning identifies conditions and actions that pose hazards to the user or may damage the Meter or the equipment under test A Note identifies the information that user should pay attention to International electrica...

Страница 6: ...er between the terminals or between any terminal and grounding l The rotary switch should be placed in the right position and no any changeover of range shall be made during measurement is conducted to prevent damage of the Meter l When the Meter working at an effective voltage over 60V in DC or 30V rms in AC special care should be taken for there is danger of electric shock l Use the proper termi...

Страница 7: ...r power off before opening the Meter case l When servicing the Meter use only the same model number or identical electrical specifications replacement parts l The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident l Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing No abrasive and solvent should be us...

Страница 8: ...cal Symbols AC Alternating Current DC Direct Current Grounding Double Insulated Deficiency of Built In Battery Warning Refer to the Operating Manual Conforms to Standards of European Union Model UT58A B C OPERATING MANUAL 8 ...

Страница 9: ... figure 1 The Meter Structure see figure 1 1 LCD Display 2 HOLD Button 3 Rotary Switch 4 Input Terminals 5 POWER Model UT58A B C OPERATING MANUAL 9 ...

Страница 10: ......

Страница 11: ... the Meter on and off l Press down the POWER to turn on the Meter l Press up the POWER to turn off the Meter HOLD Blue Button l Press HOLD once to enter hold mode l Press HOLD again to exit hold mode l In Hold mode is displayed and the present value is shown Button Operation Performed Model UT58A B C OPERATING MANUAL 11 ...

Страница 12: ...eading 5 Test of diode 6 The continuity buzzer is on 7 Date hold is active 8 Indicator for AC voltage or current The displayed value is the mean value 3 AC Connect Terminal Indicator of connecting test leads into different input terminals figure 2 2 1 Model UT58A B C OPERATING MANUAL 12 Connect Test Leads COM Ω FmVV k M Ω Ω µ nF FkHz AmAA µ A Ω V µAmA ...

Страница 13: ...µA mA A No Symbol Meaning 9 Ω kΩ MΩ mV V µF nF o C Model UT58A B C OPERATING MANUAL 13 ...

Страница 14: ... and 750V Measurement Operation 1 A DC and AC Voltage Measurement see figure 3 To measure DC or AC Voltage connect the Meter as follows 1 Insert the red test lead into the HzVΩ UT58C or VΩ UT58A UT58B terminal and the black test lead into the COM input terminal 2 Set the rotary switch to an appropriate measurement position in V or V range 3 Connect the test leads across with the object to be measu...

Страница 15: ...rent measurement where the open circuit voltage between terminals and ground is greater than 250V If the fuse burns out during measurement the Meter may be damaged or the operator himself may be hurt Measurement Operation 2 Model UT58A B C OPERATING MANUAL 15 ...

Страница 16: ...following 1 Turn off power to the circuit Discharge all high voltage capacitors 2 Insert the red test lead into the A or µAmA UT58A or mA UT58B UT58C terminal and the black test lead into the COM terminal 3 Set the rotary switch to an appropriate measurement position in A or A range 4 Break the current path to be tested Connect the red test lead to the more positive side of the break and the black...

Страница 17: ...s are Model UT 58A UT58B 200Ω 2kΩ 20kΩ 2MΩ 20MΩ and 200MΩ Model UT 58C 200Ω 2kΩ 20kΩ 2MΩ and 20MΩ 1 Insert the red test lead into the Hz VΩ UT58C or VΩ UT58A UT58B terminal and the black test lead into the COM terminal 2 Set the rotary switch to an appropriate measurement position in Ω range 3 Connect the test leads across with the object being measured The measured value shows on the display Mode...

Страница 18: ... X accurate readings of resistance l If the input terminal short circuit reading 0 5 check the test leads for any looseness or other cause l For high resistance 1MΩ it is normal taking several seconds to obtain a stable reading select short test leads for stable and precise readings l When the resistance is higher than the maximum range or in open circuit condition the Meter displays 1 l When resi...

Страница 19: ...ductor junction and then measures the voltage drop across the junction A good silicon junction drops between 0 5V and 0 8V To test out a diode out of a circuit connect the Meter as follows 1 Insert the red test lead into the Hz VΩ UT58C or VΩ UT58A UT58B terminal and the black test lead into the COM terminal 2 Set the rotary switch to 3 For forward voltage drop readings on any semiconductor compon...

Страница 20: ... discharge all the high voltage capacitors before testing for continuity To test for continuity connect the Meter as below 1 Insert the red test lead into Hz VΩ UT58C or VΩ UT58A UT58B terminal and the black test lead into the COM terminal 2 Set the rotary switch to 3 Connect the test leads across with the object being measured 4 The buzzer does not sound if the resistance of a circuit under test ...

Страница 21: ...21 ...

Страница 22: ... figure 9 9 Model UT58A B C OPERATING MANUAL 22 ...

Страница 23: ...Model UT58A B C OPERATING MANUAL 23 ...

Страница 24: ...POWER Model UT58A B C OPERATING MANUAL 24 ...

Страница 25: ...Model UT58A B C OPERATING MANUAL 25 ...

Страница 26: ...emperature Operating 0 o C 40 o C 32 o F 104 o F Storage 10 o C 50 o C 14 o F 122 o F l Electromagnetic Compatibility In a radio field of 1 V m Overall Accuracy Specified Accuracy 5 of Range in a radio field of more than 1 V m no assigned accuracy is specified l Battery Type One piece of 9V NEDA1604 or 6F22 or 006P l Dimensions 179x88x39mm l Weight Approx 380g including holster and battery l Safet...

Страница 27: ...ange Resolution 0 8 3 Overload Protection Accuracy 1 2 3 1000VAC Remarks l Input Impedance approx 10MΩ l Frequency response 40Hz 1kHz 500V 40Hz 400Hz 500V The 500Hz reading is for reference l Displays effective value of sine wave mean value response Accuracy Specifications 1 Accuracy a reading b digits guarantee for 1 year Operating temperature 18 o C 28 o C Relative humidity 75 RH Model UT58A B C...

Страница 28: ...asurement 10 seconds and interval time between 2 measurement greater than 15 minutes 20µA 2mA 20mA 200mA 20A 0 01µA 1µA 10µA 0 1mA 10mA Range Resolution 0 8 1 Overload Protection Accuracy 2 5 1 5 1 Un Fused 2mA 200mA 20A 1µA 0 1mA 10mA Range Resolution 1 0 3 Overload Protection Accuracy Un Fused 1 8 3 3 0 5 Fuse 0 5A 250V fast type 5x20mm Fuse 0 5A 250V fast type 5x20mm Model UT58A UT58ABC UT58AB ...

Страница 29: ...UT58ABC UT58ABC UT58ABC UT58ABC UT58ABC UT58AB ...

Страница 30: ...ccuracy Specifications 4 5 0 4 When it is 40µF the obtained reading is only for reference 2nF 1pF 200nF 0 1nF 100µF 0 1µF Range Resolution Accuracy 4 0 3 Range Resolution Accuracy 7 Model UT58A B C OPERATING MANUAL 30 ...

Страница 31: ...ransistor test Range Resolution Accuracy a reading b digits hFE 1β Vce 3V Ibo 10µA 1000βMAX K Frequency UT58C only Range Resolution Overload Protection Accuracy 2kHz 1Hz 20kHz 10Hz 1 5 5 250V AC Model UT58A B C OPERATING MANUAL 31 ...

Страница 32: ...amp cloth and mild detergent Do not use chemical solvent l To clean the terminals with cotton bar with detergent as dirt or moisture in the terminals can affect readings l Turn the Meter off when it is not in use and take out the battery when not using for a long time l Do not store the Meter in place of humidity high temperature explosive inflammable and strong magnetic field B Replacing the fuse...

Страница 33: ...lacement of the fuses is seldom required Burning of a fuse always results from improper operation Maintenance 2 C Replacing the Battery see figure 10 To replace the Meter s battery 1 Turn the Meter power off and remove all connections from the terminals 2 Remove the holster from the Meter 3 Remove the 3 screws from the case bottom and separate the case top from the case bottom 4 Remove the battery...

Страница 34: ... END This operating manual is subject to change without notice Model UT58A B C OPERATING MANUAL 34 ...

Страница 35: ...Model UT58A B C OPERATING MANUAL 35 ...

Страница 36: ...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 Model UT58A B C OPERATING MANUAL 36 ...

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