Performance Tool W2969 Bedienungsanleitung

OWNER'S MANUAL

�WARNING: READ, UNDERSTAND AND FOLLOW ALL INSTRUCTIONS AND

WARNINGS BEFORE OPERATING THIS TOOL. FAILURE TO DO SO MAY

RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE AND WILL

VOID WARRANTY.

DIGITAL

AUTOMOTIVE MULTIMETER

Item Number W2969

Index

Safety Precautions .................................. 2

Vehicle Service Information .................... 3

Visual Inspection ..................................... 3

1. MultimeterBasicFunctions

Functions and Display Definitions ...... 4

Safety Information ............................... 6

Manual Conventions ............................ 6

International Electrical Symbols ......... 6

BeforeUsing theMultimeter ............... 6

Specifications ..................................... 7

Maintenance ..................................... 7

Setting the Range ............................... 8

Battery and Fuse Replacement ......... 9

Measuring DC Voltage...................... 10

Measuring AC Voltage...................... 11

Measuring Resistance...................... 11

Measuring DC Current..................... 12

Testing Diodes .................................. 13

Testing Batteries ............................... 14

2. Automotive Testing

General Testing................................. 15

-Testing Fuses ................................. 15

- Testing Switches............................. 15

- Testing Solenoids and Relays........ 16

Starting / ChargingSystem Testing . 17

-No LoadBattery Test ......................17

-Engine Off Battery Current Draw... 18

-Cranking Load Test . 19

-Voltage Drops................................. 20

-ChargingSystem Voltage Test ...... 21

3. IgnitionSystem Testing

-Ignition Coil Testing ........................ 23

-Ignition System Wires..................... 25

- Magnetic Pick-Up Coils

-Reluctance Sensors........................ 26

4. Fuel System Testing

-Measuring Fuel Injector Resistance.. 25

5. Testing Engine Sensors

-Oxygen

(0 2) Type Sensors............. 29

-Temperature Type Sensors............ 31

-Position Type Sensors.................... 32

Electrical Specifications........................ 34

Warranty .................................................34

Bosch

Vehicle Service Manual –Sources For Service

Information

Thefollowingisalistofsourcestoobtainvehicleserviceinformationforyour

specific vehicle.

•Contact your local Automotive Dealership Parts Department.

•Contact local retail auto parts stores for aftermarket vehicle service

information.

•Contactyourlocal library.Libraries oftenallow youtocheck-out automo-

tive service manuals.

Do a Thorough Visual Inspection

Do a thorough visual and “hands-on”underhood inspection before

starting any diagnostic procedure! You can find the cause of many

problems by just looking, thereby saving yourself a lot of time.

•Has the vehicle been serviced

recently? Sometimes things get

reconnected in the wrong place,

or not at all.

•Don’t take shortcuts. Inspect

hoses and wiring which may be

difficult to see due to location.

•Inspect the air cleaner and

ductwork for defects.

•Checksensorsandactuatorsfor

damage.

•Inspect ignition wires for:

- Damaged terminals.

- Split or cracked spark plug

boots

- Splits, cuts or breaks in the

ignition wires and insulation.

•Inspect all vacuum hoses for:

- Correct routing. Refer to ve-

hicle service manual, or Ve-

hicle Emission Control

Information(VECI) decal lo-

cated in the engine compart-

ment.

- Pinches and kinks.

- Splits, cuts or breaks.

•Inspect wiring for:

- Contact with sharp edges.

- Contactwithhotsurfaces,such

as exhaust manifolds.

- Pinched, burned or chafed in-

sulation.

- Proper routing and connec-

tions.

•Check electrical connectors for:

- Corrosion on pins.

- Bent or damaged pins.

- Contacts not properly seated

in housing.

- Bad wire crimps to terminals.

on display. In the hold mode, the

"H" annunciator is displayed.

6. TEST LEAD JACKS

BLACK Test Lead is

always inserted in the

COM jack.

REDTest Lead is in-

serted in the jack cor-

responding to the multimeter ro-

tary switch setting.

Always connect TEST LEADS to the

multimeter before connecting them

to the circuit under test!!

10. DISPLAY LIGHT

Press button to illuminate the dis-

play.

11.DISPLAY

Used to display all measurements

and multimeter information.

Low Battery– If this symbol ap-

pears in the lower left corner of the

display, then replace the internal

9V battery. (See Battery and Fuse

Replacement on

page 9.)

High Voltage

indicator

Overrange Indi-

cation – If “1” or “-

1” appears on the

left side of the dis-

play, then the mul-

timeter is set to a

range that is too

small for the

present measure-

ment being taken.

Increase the rangeuntil thisdisap-

pears.Ifit does notdisappear after

all the ranges for a particular func-

tionhavebeentried,thenthevalue

being measuredistoo large for the

multimeter to measure. (See Set-

ting the Range onpage 8.)

Zero Adjustment

The multimeter will automatically zero

on the Volts, Amps and Battery Test

functions.

Automatic Polarity Sensing

Themultimeterdisplaywillshowaminus

(-) sign on the DC Volts and DC Amps

functions when test lead hook-up is re-

versed.

7. AC VOLTS

This function is used for measur-

ing AC Voltages in the range of 0

to 500V.

8. DC AMPS

This function is used for measur-

ing DC (Direct Current) Amps in

the range of 0 to 10A.

9. 1.5V, 9V, AND 12V BATTERY

TEST

Thisfunctionisusedtotest1.5V,

9V, and 12V batteries under

load.

DC VOLTSAC VOLTS

OHMSDIODES

1.5V, 9V and 12V

BATTERY TESTS

DC AMPS

Safety Information

The multimeter complies with the standards UL61010: in pollution degree 2,

overvoltage category CAT I 600V, CAT II 300V, and double insulation.

CAT I : is for measurements performed on circuits not directly connected to

MAINS.

CATII:is formeasurementsperformedon circuitsdirectlyconnected to alow

voltage installation.

protection provided by the multimeter may be impaired.

Do not use the multimeter for measurements within categories III and IV.

Manual Conventions

Inthismanual,aWarning conditions andactions that pose hazards

to the user, or may damage the multimeter or equipment under test.

nature ofthe potentialhazard andthe actions, which haveto betaken.

International Electrical Symbols

LowBattery Grounding Warning

AC DC Diode

Double Insulation Continuity Buzzer

UL Conforms to Standards of UL61010

Before Using the Multimeter

Inspect the test leads for damaged insulation or exposed metal.

Replace damaged test leads with identical parts (same model number

and electrical sp before using the multimeter.

Only use the test lead assemblies which meet the manufacturer

tions.

Test the Digital multimeter on a known live circuit to verify that the

multimeter is working properly.

Do not use or store the multimeter in a hot, humid, explosive,

the multimeter may deteriorate after it is exposed to dampness.

When servicing the multimeter, use only the same model number or

identical electrical cations replacement parts.

accuracy = Specied accuracy +5%

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