UNI-T UT106 Spécifications

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The Meter Structure (see figure 1)1. LCD display 2. Data Hold button3. Rotary Switch 4. Input Terminals5. Power button(figure 1)

Rotary SwitchRotarySwitchPositionFunctionVkHz0CADWELLRPM x 10DC voltage measurement.AC voltage measurement.Resistance measurement.Diode test.Continuit

Display Symbols (see figure 2)The battery is low. Warning: To avoid false readings,which could lead to possible electricshock or personal injury, r

V13Model UT106: OPERATING MANUALMeasurement OperationPart 1 Multimeter Basic TestingA. DC Voltage Testing (see figure 3)( figure 3)WarningTo avoid h

Note 14Model UT106: OPERATING MANUALIf the value of voltage to be measured is unknown,use the maximum measurement position (1000V) andreduce the range

15Model UT106: OPERATING MANUALB. AC Voltage Testing (see figure 4)( figure 4)WarningTo avoid harms to you or damages to the Meter fromelectric shock,

Note16Model UT106: OPERATING MANUALIf the value of voltage to be measured is unknown,use the maximum measurement position (1000V) andreduce the range

A17Model UT106: OPERATING MANUALC. DC Current Testing (see figure 5)WarningBefore connecting the Meter in serial to the testedin-circuit, disconnect i

Note 18Model UT106: OPERATING MANUALIf the value of current to be measured is unknown, usethe maximum measurement position (10A) and 10Aterminal, and

19Model UT106: OPERATING MANUALD. Resistance Testing (see figure 6)( figure 6)WarningTo avoid damages to the Meter or to the devicesunder test, disco

Title Page 2Model UT106: OPERATING MANUAL33343637373839404142434446464749515252

Note 20Model UT106: OPERATING MANUALThe test leads can add 0.1 to 0.2 of error to theresistance measureme

21Model UT106: OPERATING MANUALE. Diode Testing (see figure 7)WarningTo avoid possible damage to the Meter and to thedevice under test, disconnect ci

Note 22Model UT106: OPERATING MANUALIn a circuit, a good diode should still produce a forwardvoltage drop reading of 0.5V to 0.8V; however, thereverse

Note23Model UT106: OPERATING MANUALF. Continuity Testing (see figure 7)WarningTo avoid possible damage to the Meter and to thedevice under test, disc

Note24Model UT106: OPERATING MANUALG. Temperature Measurement (see figure 8)( figure 8)WarningTo avoid harm to yourselves , never attempt to inputan e

Note25Model UT106: OPERATING MANUALH. Frequency Measurement (see figure 9)WarningTo avoid harm to yourselves , never attempt to inputan effective volt

26Model UT106: OPERATING MANUALI. Dwell Testing (see figure 10)It was very important in the past to test the dwell of thecut-off switch of an ignitio

27Model UT106: OPERATING MANUALJ. Engine Tach (Rotation Speed) Testing “RPMx10” (see figure 11)The RPM means the rotating frequency of the main sha

28Model UT106: OPERATING MANUALK. Operation of Hold ModeThe Hold mode is applicable to all measurement fun

29Model UT106: OPERATING MANUALPart 2 Diagnosis of Automotive TroublesThe Meter UT106 is a tool for the very effective diagnosisof the troubles with

Overview 3Model UT106: OPERATING MANUALThis Operating Manual covers information on safety andcautions. Please read the relevant information carefully

Model UT106: OPERATING MANUALB. Switch Testing: Check the switch to see if it canwork correctly.The same as in Items 1 to 3 (Fuse Testing).Connect th

31Model UT106: OPERATING MANUALD. Starting/Charging System TestingSet the rotary switch to 20 VDC.As prompted at the LCD connect terminal, insert ther

A32Model UT106: OPERATING MANUALE. Battery Power Consumption Testing when theEngine Is offThe test is carried out to find the amperage of the powercon

33Model UT106: OPERATING MANUALF. Trigger Voltage Battery Load TestingSet the rotary switch to 20 VDC.As prompted at the LCD connect terminal, insert

34Model UT106: OPERATING MANUALG. Voltage Drop TestingCut off the ignition system so as to disable the startof the automobile.Cut off the main igniti

35Model UT106: OPERATING MANUALComponentVoltageSwitchLeadGroundingBattery Lead ConnectorWiring300 mV200 mV100 mV50 mV0.0 VCompare the readings of the

36Model UT106: OPERATING MANUALH. Charging System Voltage TestingThis testing is used to see if the chargi

37Model UT106: OPERATING MANUALI. Ignition System Testing1. Ignition Coil TestingBefore the operation, cool the engine and cut off theignition coil.Se

38Model UT106: OPERATING MANUALSet the rotary switch to the 200k and test the primarycoil of the ignition coil.Connect the red test lead probe to th

39Model UT106: OPERATING MANUALWarningSome of Chrysler’s products use a spark plug highvoltage damper with “positive lock” end electrodes,which can on

This Meter complies with standards IEC61010: in pollutiondegree 2, overvoltage category (CAT. II 1000V, CAT. III600V) and double insulation.CAT.II: Lo

40Model UT106: OPERATING MANUALMove the Hall sensor out of the automobile and seethe details of the operation in various kinds ofautomotive manuals.Co

41Model UT106: OPERATING MANUAL5. RPMx10 Testing (see figure 17)Set the rotary switch to RPMx10 and select thenumber of cylinders in the automobile to

42Model UT106: OPERATING MANUAL6. Fuel System Testing(1) GM (General Motor):It is necessary to add more accurate engine fuel controlto a low injection

43Model UT106: OPERATING MANUALThe testing method is similar to that of the resistance ofan ignition coil.Cut the electric link off the injector. (Re

44Model UT106: OPERATING MANUAL1. Oxygen SensorThe oxygen sensor is used to test the oxygen content inthe

45Model UT106: OPERATING MANUALThe zirconia sensor is tested with the 2VDC. Asprompted at the LCD connect terminal, insert the redtest lead into the

46Model UT106: OPERATING MANUAL2. Temperature Sensor (see figure 20)(figure 20)HeaterTemperatureSensorRed BlackTesting Procedure:The same as in the r

47Model UT106: OPERATING MANUALThe position sensor is an electrometer or variableresistance. It is used for the computer monitoring of theposition an

48Model UT106: OPERATING MANUALThe MAP sensor is used to change a pressure signalinto a DC voltage or frequency one. All GM, Chrysler,Honda and Toyot

49Model UT106: OPERATING MANUAL5. Mass Air Flow (MAF) Sensor (see figure 23)(figure 23)Black RedGroundLow frequency MAF Sensor of GM(General Motor) in

5Model UT106: OPERATING MANUALRules For Safe OperationWarningTo avoid possible electric shock or personal injury,and to avoid possible damage to the

50Model UT106: OPERATING MANUALWarningThe reading becomes the actual RPM only after itis multiplied by 10.Frequency = RPM/30. (This only applies to

General Specifications51Model UT106: OPERATING MANUALMaximum Voltage between any Terminals andgrounding: Refer to different range input protectionvol

A. DC VoltageB. AC Voltage 52Model UT106: OPERATING MANUALAccurate SpecificationsAccuracy: (a% Reading +

C. DC CurrentD. ResistanceE. Diode53Model UT106: OPERATING MANUALRange Resolution AccuracyOverloadProtection200mA10A0.1 mA10 mA(0.8%+5)(1.2%+5)Fuse 31

F. Continuity TestingG. TemperatureH. Frequency 54Model UT106: OPERATING MANUALRange ResolutionOverloadProtection1600VpRemark:Open circuit voltage app

I. Dwell TestingJ. Tach (Rotation Speed) Testing55Model UT106: OPERATING MANUALRange Resolution AccuracyOverloadProtection4CYL6CYL8CYL (3%+5)600 Vp0.1

56Model UT106: OPERATING MANUALMaintenanceThis section provides basic maintenance informationincluding battery and fuse replacement instruction.Warnin

57Model UT106: OPERATING MANUALB. Replacing the Fuses (see figure 24)WarningTo avoid electrical shock or arc blast, or personalinjury or damage to the

58Model UT106: OPERATING MANUALBatteryOpen up ScrewC. Replacing the Battery (see figure 25)WarningTo avoid false readings, which could lead to possib

59Model UT106: OPERATING MANUAL

6Model UT106: OPERATING MANUALIf the value of current to be measured is unknown,use the maximum measurement position, andreduce the range step by st

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

7Model UT106: OPERATING MANUALAutomotive Servicing Safety GuideWarningAs some automobiles are installed with safety airbags, you must pay attention

8Model UT106: OPERATING MANUALA. The data of the automotive servicing manual haveoriginated from the automotive servicing information.Contact the lo

International Electrical SymbolsAC (Alternating Current).DC (Direct Current)Grounding.Double Insulated.Deficiency of Built-In Battery.Fuse.Warning. R