UNI-T UT61 series Spécifications

Table of Contents4567910111213151518212426293133Title PageOverviewUnpacking InspectionSafety InformationRules For Safe OperationInternational Electric

The Meter Structure (see figure 1)LCD DisplayFunctional ButtonsBlue buttonRotary SwitchInput Terminal:figure 112345Model UT61A/61B/61C/61D/61E: OPERAT

Rotary SwitchBelow table indicated for information about the rotary switch positions.AC and DC Voltage MeasurementAC Voltage Measurement (UT61D only)D

Functional ButtonsBelow table indicated for information about the functional button operations.Press to select the maximum and minimum value.Operation

Display SymbolsMeaningData hold is active.Sleep Mode indicatorIndicates negative reading.Indicator for AC measurementIndicator for DC measurementThe M

NoThe REL is on to display the stored value minus the present value.: Ohm. The unit of resistance.k : kilohm. 1 x 103 or 1000 ohms.M : Megaohm. 1 x

Measurement OperationA. DC/AC Voltage Measurement (See figure 2) figure 2Model UT61A/61B/61C/61D/61E: OPERATING MANUAL15

WarningTo avoid harms to you or damages to the Meter from electric shock, please donot attempt to measure voltages higher than 1000V although r

Notel In each range, the Meter has an input impedance of 10M except mV range which input impedance is 3000M . This loading effect can cause mea

B. DC/AC Current Measurement (See figure 3) figure 3AModel UT61A/61B/61C/61D/61E: OPERATING MANUAL18

WarningBefore connecting the Meter to the return circuit to be tested, cut off the currentof the return circuit.If the fuse burns out during mea

353738393939404041414142434446495255Title Page I.Transistor hFE Measurement J.EF FunctionOperation of Hold ModeRANGE ButtonMAX MIN ButtonPEAK

UT61A, UT61B and UT61C: display effective value of sine wave (meanvalue response).UT61D and UT61E: display true rms value.5. Press Hz% to obtain the

C. Measuring Resistance (See figure 4)figure 4Model UT61A/61B/61C/61D/61E: OPERATING MANUAL21

WarningTo avoid damages to the Meter or to the devices under test, disconnect circuitpower and discharge all the high-voltage capacitors before m

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL23

D. Testing for Continuity (See figure 5)figure 5Model UT61A/61B/61C/61D/61E: OPERATING MANUAL24

WarningTo avoid damages to the Meter or to the devices under test, disconnect circuitpower and discharge all the high-voltage capacitors before t

E. Testing Diodes (See figure 6)figure 6Model UT61A/61B/61C/61D/61E: OPERATING MANUAL26

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL27

l Connect the test leads to the proper terminals as said above to avoid error display. The LCD will display OL indicating diode being tested is

F. Capacitance Measurement (See figure 7)figure 7Model UT61A/61B/61C/61D/61E: OPERATING MANUAL29

Title Page5759606061626262636567 F.Capacitance G.Frequency H.Diode Test I.Continuity Test J.Temperature K.Transistor hFEMaint

WarningTo avoid damage to the Meter or to the equipment under test, disconnect circuitpower and discharge all high-voltage capacitors before mea

figure 8n the tested capacitor is more than 100uFModel UT61A/61B/61C/61D/61E: OPERATING MANUAL31

300 For UT61E:Measuring Audio frequency,if the input voltage is more than 15 volt. the meter will simulate the sound in same frequen

l When frequency measurement has been completed, disconnect the connectionbetween the testing leads and the circuit under test, and remove the testing

WarningTo avoid harm to yourself, do not input higher than DC 60V or AC 30V voltages.To measure temperature, connect the Meter as follows:1. Set the r

I. Transistor hFE Measurement (UT61A only) (See figure 10) figure 10Model UT61A/61B/61C/61D/61E: OPERATING MANUAL35

1. Set the rotary switch to hFE.2. Insert the multi-purpose socket into the input terminal as shown on figure 10.3. Insert the transistor to be tested

J. EF Function (UT61A only) (See figure 11)figure 11Model UT61A/61B/61C/61D/61E: OPERATING MANUAL37

To use EF function, connect the Meter as follows:1. Set the rotary switch to EF and remove the test lead from the input terminals.2. Place the housing

RANGE buttonl Press RANGE to enter the manual ranging mode; the Meter beeps.l Press RANGE to step through the ranges available for the selected functi

This Operating Manual covers information on safety and cautions. Please read therelevant information carefully and observe all the Warnings and Notes

For UT61E,Auto entering Data outputting mode.Model UT61A/61B/61C/61D/61E: OPERATING MANUAL40

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL41

General Specificationsl Maximum Voltage between any Terminals and Grounding: Refer to the different ranges input protection voltage..l Fused Prot

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL43

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL44

(0.8%+3)Model UT61A/61B/61C/61D/61E: OPERATING MANUAL45

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Model UT61A/61B/61C/61D/61E: OPERATING MANUAL48

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL49

Except where noted, the descriptions and instructions in this Operating Manual applyto all Model UT61A/UT61B/UT61C/UT61D/UT61E.Unpacking InspectionOpe

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Model UT61A/61B/61C/61D/61E: OPERATING MANUAL51

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444444Model UT61A/61B/61C/61D/61E: OPERATING MANUAL57

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3004040040M0.01Hz0.001HzModel UT61A/61B/61C/61D/61E: OPERATING MANUAL59

In the event you find any missing or damage, please contact your dealer immediately.Safety InformationThis Meter complies with the standards IEC61010:

0.001V0.0001VModel UT61A/61B/61C/61D/61E: OPERATING MANUAL60

VacModel UT61A/61B/61C/61D/61E: OPERATING MANUAL61

MaintenanceThis section provides basic maintenance information including battery and fusereplacement instruction. WarningDo not attempt to repair

l Do not use or store the Meter in a place of humidity, high temperature, explosive, inflammable and strong magnetic field.B. Replacing the Batte

WarningTo avoid false readings, which could lead to possible electric shock or personalinjury, replace the battery as soon as the battery indica

C. Replacing the Fusesfigure 13Model UT61A/61B/61C/61D/61E: OPERATING MANUAL65

WarningTo avoid electrical shock or arc blast, or personal injury or damage to the Meter,use specified fuses ONLY in accordance with the followi

USB Serial Port (UT61B, UT61C , UT61D and UT61E only)It is optional at extra cost.Please refer to the ìInstallation Guide & Computer Interface Sof

This operating manual is subject to change without notice.Copyright 2008 Uni-Trend Group Limited.All rights reserved.Manufacturer:Uni-Trend Technology

Rules For Safe OperationWarningTo avoid possible electric shock or personal injury, and to avoid possibledamage to the Meter or to the equipment under

l Do not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable and strong magnetic field. The performa

l Turn the Meter off when it is not in use and take out the battery when not using for a long time.l Constantly check the battery as it may leak