Uni-Trend UT203 Specifications

Digital Clamp MultimetersP/N: 41416301Registered Design No.: ZL02 3 357791.6UT203/204

International Electrical SymbolsAC (Alternating Current)DC (Direct Current)AC or DCGroundingDouble InsulatedWarning. Refer to the Operating ManualDefi

The Meter Structure (see figure 1)(figure 1)Input TerminalsLCD DisplayFunctional ButtonsRotary SwitchTrigger: press the lever to open the transformerj

Rotary SwitchBelow table indicated for information about the rotary switch positions.Rotary Switch PositionPower is turned offAC or DC voltage measure

Functional ButtonsBelow table indicated for information about the functional button operations.Button Operation Performed Press HOLD to enter the H

Button Operation PerformedSELECT Press SELECT button to select the alternate functions marked in blue colour on the Meter’s faceplate including

The Effectiveness of Functional ButtonsNot every functional buttons can be used on every rotary switch positions. Belowtable describe which functiona

Display Symbols (see figure 2)(figure 2)4123568 9101213141671115Model UT203/204: OPERATING MANUAL15

Number Meaning123456789ACDCSymbolIndicator for AC voltage or currentIndicator for DC voltageThe battery is low.Warning: To avoid false readings, which

Number Meaning10111213141516,k ,MHzAmV, VTRMSOLSymbol: Ohm. The unit of resistance.k : Kilohm. 1x103 or 1000 ohmsM : Megohm. 1x106 or 1,000,000 ohmsTh

Measurement OperationA. DC/AC Voltage Measurement (see figure 3)(figure 3)WarningTo avoid harms to you or damages to the Meterfrom eletric shock, do n

Table of ContentsOverviewUnpacking InspectionSafety InformationRules For Safe OperationInternational Electrical SymbolsThe Meter StructureRotary Switc

When DC/AC voltage measurement has been completed, disconnect the connectionbetween the testing leads and the circuit under test and remove testing le

B. Measuring Resistance (see figure 4)(figure 4)Red BlackWarningTo avoid damages to the Meter or to the devicesunder test, disconnect circuit power an

To obtain a more precise reading, you could remove the objects being tested fromthe circuit when measuring.When resistance measurement has been comple

C. Testing Diodes (see figure 5)WarningTo avoid damages to the Meter or to the devicesunder test, disconnect circuit power and dischargeall the high-v

To obtain a more precise reading, you could remove the objects being tested fromthe circuit when measuring.When diode testing has been completed, disc

D. Testing for Continuity (see figure 6)(figure 6)Red BlackWarningTo avoid damages to the Meter or to the devicesunder test, disconnect circuit power

When continuity testing has been completed, disconnect the connection betweenthe testing leads and the circuit under test and remove testing leads fro

E. Frequency Measurement (see figure 7)WarningTo avoid harms to you or damages to the Meterfrom eletric shock, do not attempt to measurevoltages highe

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

F. Duty Cycle Measurement (see figure 8)(figure 8)Red BlackWarningTo avoid harms to you or damages to the Meterfrom eletric shock, do not attempt to m

Sleep ModeSpecifications A. General Specifications B. Environmental RequirementsAccuracy Specifications A. DC Voltage B. AC Voltage C.

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

G. DC/AC Current Measurement (see figure 9)The measuremnet ranges of current are: 40.00and 400.0 .To measure current, do the following:1.2.3.4.

Press to subtracts a stored value from the present measurement valueand displays a result.When current measurement has been completed, dis

Sleep ModeTo preserve battery life, the Meter automatically turns off if you do not turn the rotaryswitch or press any button for around 15 minutes.Th

SpecificationsA. General Specifications:Maximum Voltage between any Terminals and grounding: Refer to different rangeinput protection voltage.Display

Battery Life: typically 150hours (alkaline battery)Sleep Mode (can be disabled)Dimensions (H x W x L): 208mm x 76mm x 30mm.Weight: Approximate 260g (

Accurate SpecificationsAccuracy: (a% reading + b digits), guarantee for 1 year.Operating temperature: 23ºC 5ºCRelative humidity: 85%R.HTemperatur

B. AC VoltageRange Resolution Accuracy Overload protection4.000V40.00V400.0V600V1mV10mV100mV1V(1%+5)(1.2%+5)600V DC/ACRemarks:Input impedance: 10M //

C. ResistanceRange Resolution Accuracy Overload protection400.04.000k40.00k400.0k4.000M40.00M100m1101001k10k(1.2%+2)(1%+2)(1.2%+2)(1.5%+2)600VpD. Di

E. Continuity TestRange Resolution Accuracy Overload protection100mAround 50 ,the buzzer beeps600VpRemark:Open circuit voltage approximate 0.45V.The

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

F. FrequencyRange Resolution Accuracy Overload protection10Hz100Hz1kHz10kHz100kHz1MHz10MHz0.001Hz0.01Hz0.1Hz1Hz10Hz100Hz1kHz(0.1%+3)600VpFor reference

G. Duty CycleRange Resolution Accuracy Overload protection0.1% For reference only 600Vp0.1%~99.9%H. DC CurrentRange Resolution Accuracy Overload prote

also to heat and machines reaction force. Any shock will cause the changing inreading in the short time. Follow the below procedure to measure curre

I. AC CurrentRange Resolution Accuracy Overload protection0.01A0.1A400A DC/AC40.00A400.0A(2.5%+8)(2.5%+5)50Hz ~ 60HzFrequency ResponseWarningThe oper

UT203:Change to AC by using average response method. Input sine wave, then adjustthe reading until it is same as the effective value.UT204:Combine AC

MAINTENANCEThis section provides basic maintenance information including battery replacementinstruction.WarningDo not attempt to repair or service you

B. Replacing the Battery (see figure 10)WarningTo avoid false readings, which could lead to possibleelectric shock or personal injury, replace the bat

Copyright 2005 Uni-Trend Group Limited.All rights reserved.Manufacturer:Uni-Trend Technology (Dongguan) LimitedDong Fang Da DaoBei Shan Dong Fang Indu

Unpacking InspectionOpen the package case and take out the Meter. Check the following items carefullyto see any missing or damaged part:Item Descripti

Safety InformationThis Meter complies with the standards IEC61010: in pollution degree 2, overvoltagecategory (CAT. II 600V, CAT. III 300V) and double

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

The rotary switch should be placed in the right position and no any changeoverof range shall be made during measurement is conducted to prevent damage

When servicing the Meter, use only the same model number or identical electricalspecifications replacement parts.The internal circuit of the Meter sha