Uni-Trend UT105 Especificaciones

Table of ContentsTitle PageOverviewUnpacking InspectionSafety InformationRules F

5. Check the ignition lead: any breakage of any terminal, crack on any spark plug or breakage at the insulation of the ignition lead.6. Chec

International Electrical SymbolsAC (Alternating Current).Grounding.Double Insulated.Deficiency of Built-In Battery.Fuse.Warning. Refer to the Operati

The Meter Structure (see figure 1)1. LCD display2. Data Hold button3. Rotary Switch4. Input Terminals5. Power button(figure 1)Mode

Rotary SwitchRotarySwitchPositionFunctionDC voltage measurement.AC voltage measurement.DC Current MeasurementDiode test.Continuity test.Resistance mea

Functional ButtonsBelow table indicated for information about the functionalbutton operations.AC voltage measurement.Turn the power on

Display Symbols (see figure 2)( figure 2)No. Symbol Meaning1The battery is low. Warning: To avoid false readings,which could l

Display Symbols(2) (see figure 2)Ω: Ohm. The unit of resistance.kΩ: kilohm.1 x 103 or 1000 ohms.MΩ: Megaohm. 1 x 106 or 1,000,000 ohms.mA,

Measurement Operation(1)Part 1 Multimeter Basic TestingA.AC or DC Voltage Testing (see figure 3)WarningTo avoid harms to you or damages to the Meter

Measurement Operation(2)Notel If the value of voltage to be measured is unknown, use the maximum measurement position (1000V) and reduce the

may be damaged or the operator himself may be hurt.Use proper terminals, function, and range for themeasurement. When the testing leads are connectedt

Title Page H. Charging System Voltage Testing I. Ignition Syste

Measurement Operation(4)C.Resistance Testing (see figure 5)(figure 5)WarningTo avoid damages to the Meter or to the devicesunder test, disconnect cir

Notel The test leads can add 0.1Ωto 0.2Ω of error to the resistance measurement. To obtain precision readings in low-resistance, that is

WarningTo avoid possible damage to the Meter and to thedevice under test, disconnect circuit power anddischarge all high-voltage capacitors before tes

Measurement Operation(7)l The LCD will display 1 indicating open-circuit for wrong connection.l The unit of diode is Volt (V), displaying the po

Measurement Operation(8)F.Dwell Testing (see figure 7)It was very important in the past to test the dwell of thecut-off switch of an ignition system.

Measurement Operation(9) l If the GM feedback carburetor is tested, connect the red probe to the ground terminal or the computer dr

l If a DIS ignition system without any distributor board is used in the automobile, connect the red test lead probe to the TACH (tachomet

Measurement Operation(11)Part 2 Diagnosis of Automotive TroublesThe digital multimeter is a tool for the very effectivediagnosis of the troubles wit

Measurement Operation(12)C.Solenoid or Relay Testing 1. The same as in Items 1 to 3 (Fuse Testing). 2. Connect the red and black test lead probes in

(2) As prompted at the LCD connect terminal, insert the red test lead into the V terminal and the black one into the COM terminal.(3) Turn

OverviewThis Operating Manual covers information on safety andcautions. Please read the relevant information carefullyand observe all the Warnings and

Measurement Operation(15)Voltage Temperature9.6 V or more 21.1oC (70oF)9.5 V

Measurement Operation(16)2.Set the rotary switch of the multimeter to the 200mVor 2VDC. As prompted at the LCD connect terminal,insert the red test l

Model UT105: OPERATING MANUAL33Measurement Operation(17)H.Charging System Voltage TestingThis testing is used to see if the charging system operatesno

Model UT105: OPERATING MANUAL 34Measurement Operation(18)I.Ignition System Testing1.Ignition Coil Testing(1) Before the operation, cool the engine and

Model UT105: OPERATING MANUAL35Measurement Operation(19)(5) Set the rotary switch to the 200kΩ and test the secondary coil of the ignition coil.(6

Model UT105: OPERATING MANUAL 36Measurement Operation(20)Warning:l Some of Chrysler’s products use a spark

Model UT105: OPERATING MANUAL37Measurement Operation(21)(1) Move the Hall sensor out of the automobile and see the details of the operation in var

Model UT105: OPERATING MANUAL 38Measurement Operation(22)The functions of a magnetic resistance sensor is similarto those of a Hall sensor and the tes

Model UT105: OPERATING MANUAL39Measurement Operation(23)(4) The normal starting rotation speed of an engine is about 50 RPM to 275 RPM. Refer th

Unpacking InspectionIn the event you find any missing or damage, pleasecontact your dealer immediately.9V Battery (NEDA 1604, 6F22 or 006P)Open the pa

Model UT105: OPERATING MANUAL40Measurement Operation(24)(2)Fuel Injector Resistance Testing (see figure 15)The testing method is similar to that of th

Model UT105: OPERATING MANUAL41Measurement Operation(25)To be adapted to the provisions for low injection and fuelsaving in the early period of the ei

Model UT105: OPERATING MANUAL42Measurement Operation(26)(4) Connect the red test lead probe of the meter to the signal terminal (i.e. hot end) of

Model UT105: OPERATING MANUAL43Measurement Operation(27)2.Temperature sensor (see figure 17)The temperature sensor changes the output resistancethroug

Model UT105: OPERATING MANUAL 44Measurement Operation(28)3.Position Sensor (see figure 18)The position sens

Model UT105: OPERATING MANUAL45Measurement Operation(29)4.Absolute Pressure (MAP) and Baro Sensor (seefigure 19)The MAP sensor is used to change a pre

Model UT105: OPERATING MANUAL 46Measurement Operation(30)(3) Taking 4 cylinders (4CYL) for example, connect the black test lead probe of the mete

Model UT105: OPERATING MANUAL47Measurement Operation(31)5.Mass Air Flow (MAF) Sensor (see figure 20)The sensor converts the air flow into a DC voltage

Model UT105: OPERATING MANUAL48Measurement Operation(32)Displayed Values:DC Voltage Type Sensor:The displayed value should be less than or equal to 1V

Model UT105: OPERATING MANUAL49General Specificationsl Maximum Voltage between any Terminals and grounding: Refer to different range input prote

Safety InformationThis Meter complies with standards IEC61010: in pollutiondegree 2, overvoltage category (CAT. II 1000V, CAT. III600V) and double ins

Model UT105: OPERATING MANUAL 50Accurate Specifications(1)Accuracy: (a% Reading + Digits), guarantee for 1 year.Operating Temperature: 18oC to 28oC.

Model UT105: OPERATING MANUAL51Accurate Specifications(2)D.ResistanceRange ResolutionOverloadProtectionAccuracy200Ω2kΩ20kΩ200kΩ2MΩ20MΩ0.1Ω1Ω10Ω100Ω1kΩ

Model UT105: OPERATING MANUAL 52Accurate Specifications(3)G.Dwell TestingRemark:Input Amplitude: More than

Model UT105: OPERATING MANUAL53Maintenance(1)This section provides basic maintenance informationincluding battery and fuse replacement instruction.War

Model UT105: OPERATING MANUAL 54Maintenance(2)WarningTo avoid electrical shock or arc blast, or personalinjury or damage to the Meter, use specified f

Model UT105: OPERATING MANUAL55Maintenance(3)WarningTo avoid false readings, which could lead to possibleelectric shock or personal injury, replace th

Model UT105: OPERATING MANUAL56Copyright 2001 Uni-Trend International Limited.All rights reserved.Manufacturer: UNI-TREND TECHNOLOGY(DONG GUAN)LIMITED

Rules For Safe Operation (1)l Before using the Meter inspect the case. Do not use the Meter if it is damaged or the case (or part of the c

Rules For Safe Operation (2)Model UT105: OPERATING MANUAL 7

Model UT105: OPERATING MANUAL 8

l To connect or cut off an electronic component, close the ignition lock.l Pay attention to the automotive producer’s cautions, notes and se