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1 689 979 642

2014-11-03

Robert Bosch GmbH

   |  MMD 302  |  15

en

Contents English

1. 

Symbols used 

16

1.1 

In the documentation 

16

1.1.1  Warning notices - 

Structure and meaning 

16

1.1.2  Symbols in this documentation 

16

1.2 

On the product 

16

2. 

Safety instructions 

16

2.1 

Risk of electric shocks 

16

2.1.1  Low voltages, high voltages 

16

2.1.2  High voltages in hybrid vehicles and 

electric vehicles as well as their  
high-voltage components 

17

2.2 

Danger of fire, Danger of explosion 

17

2.3 

Danger of burning 

17

2.4 

Danger of tripping 

17

2.5 

Danger of injury, Danger of crushing 

18

3. 

General Information 

18

3.1 

User profile 

18

3.2 Application 

18

3.3 

Function description 

18

3.4 

Scope of delivery 

18

3.5 

Front View, operating elements and  
connections 19
3.5.1 LCD 

19

3.5.2  Blue function button 

19

3.5.3  MIN MAX button 

19

3.5.4  REL ∆-button 

19

3.5.5 HOLD-button 

20

3.5.6  PWR RST-button 

20

3.5.7 RANGE-button 

20

3.5.8  Measurement-mode switch 

20

4. 

Connection and operation 

20

4.1 

Alternating and direct current  
measurement 20

4.2 

Acoustic continuity test and  
resistance measurement 

20

4.3 

Capacitance measurement and  
diode test 

21

4.3.1  Capacitance measurement 

21

4.3.2  Diode test 

21

4.4 

Frequency measurement 

21

4.5 

Current measurement 

21

4.6 

Possible uses of the protective  
rubber cover 

21

4.6.1  Single-handed multimeter 

21

4.6.2  Measurement cables can be wrapped  22
4.6.3 Erecting 

22

4.6.4 Protection 

22

5. Maintenance 

22

5.1 Cleaning 

22

5.2 

Spare parts and parts subject to wear 

22

5.3 

LCD difficult to read 

22

5.4 

0000 appears during current  
measurement 23

5.5 

Changing the batteries 

23

5.6 

Changing the fuses 

24

6. 

Technical Data 

24

6.1 

General data 

24

6.2 

Measurement category as per EN 61010 

24

6.3 

Meas. range, resolution and accuracy 

25

Содержание MMD 302

Страница 1: ...e Multimètre numérique es Manual original Multímetro digital it Istruzioni originali Multimetro digitale MIN MAX REL HOLD RANGE PRW RST H OFF V V ADPHz 4mA 40mA 400 mA A A mA V Hz MAX CAT III 600V DC AC REL MAX MIN MEM mVA C nuF MK Hz 0 10 20 30 40 AUTO H 456161 01_Ko COM MAX MAX 400mA FUSED FUSED 10 A cont 20 A 30sec ...

Страница 2: ...unction button 19 3 5 3 MIN MAX button 19 3 5 4 REL button 19 3 5 5 HOLD button 20 3 5 6 PWR RST button 20 3 5 7 RANGE button 20 3 5 8 Measurement mode switch 20 4 Connection and operation 20 4 1 Alternating and direct current measurement 20 4 2 Acoustic continuity test and resistance measurement 20 4 3 Capacitance measurement and diode test 21 4 3 1 Capacitance measurement 21 4 3 2 Diode test 21 ...

Страница 3: ... live parts e g with the ignition coil there is a risk of electric shock from flashover voltages caused by damaged insulation e g ignition cables which have been attacked by martens These apply to the secondary and primary sides of the ignition system the wiring harness with connectors lighting system Litronic as well as connection to the vehicle Safety measures Only connect to a properly grounded...

Страница 4: ...components If high voltage components or high voltage wires are inexpertly handled there is a risk of fatal injury from high voltages and the possi ble transmission of current through the body Deenergization is only to be performed by a qualified electrician a qualified electri cian for specific tasks hybrid or a power systems engineer Work on vehicles with high voltage com ponents is only ever to...

Страница 5: ...personnel such as mechanics electricians technicians and engineers in the area of automotive engineering 3 2 Application The MMD 302 is only intended for indoor use The MMD 302 is a measuring device for R R Direct and alternating voltage measurement R R Continuity test acoustic and resistance measurement R R Capacitance and diode test R R Frequency measurement R R Alternating and direct current me...

Страница 6: ... mode switch pressing this function button switches between R R Continuity test and resistance measure ment R R Capacitance measurement and diode test R R Frequency measurement R R Direct and alternating current measurement 3 5 3 MIN MAX button R R The minimum memory is activated by pressing the button once the smallest measured value is saved and displayed R R The maximum memory is activated by p...

Страница 7: ...ernating current up to 400 mA changeover between direct and alternating current by means of the blue function button A Measurement of direct and alternating current up to 10 A changeover between direct and alternat ing current by means of the blue function button 4 Connection and operation The following applies to all measuring modes and ranges The correct measuring mode must first be selected in ...

Страница 8: ...onnect red measuring cable to test input for volt age measurement fig 1 pos 12 2 Turn measurement mode switch fig 1 pos 8 to ADP Hz position and switch over to frequency measurement by means of the blue function button fig 1 pos 2 Hz appears in the display 4 5 Current measurement Always observe the current limit values of the se lected measuring range and at the test inputs i i In the case of all ...

Страница 9: ...g agents and coarse workshop cloths The rubber cover can be removed for cleaning purposes Do not use alcohol based cleaning agents as these could leave residue 5 2 Spare parts and parts subject to wear Designation Part Number Cable set red and black measuring cables 1 687 011 323 Connecting terminal red 1 681 354 023 Connecting terminal black 1 681 354 024 Protective rubber cover 1 680 591 026 1A ...

Страница 10: ...s played value remains unchanged approx 3 V the F2 fuse is faulty and must be replaced 5 5 Changing the batteries The batteries may only be changed when the MMD 302 is not connected to a measurement object Fig 2 Changing the batteries 1 Housing upper section 2 Housing lower section 3 Protective rubber 4 Battery holder 5 1 5 V battery 1 Remove measuring cables from the measuring object and the MMD ...

Страница 11: ... III The maximum permissible volt ages for CAT III 600 V must never be exceeded 5 6 Changing the fuses The fuses may only be changed when the MMD 302 is not connected to a measurement object Only fuses with the following specifications may be used Fuse F1 1 A 600 V IR 10KA fast acting fuse Buss mann BBS 1 Littelfuse BLS 1 A or similar rating Dimensions 10 3 x 35 mm Fuse F2 15 A 600 V IR 10KA fast ...

Страница 12: ... 2kHz 400 Ω 0 1 Ω 40 Ω 399 9 Ω Resistance 400 Ω 4 kΩ 40 kΩ 400 kΩ 4 MΩ 40 MΩ 0 1 Ω 1 mΩ 10 mΩ 0 1 Ω 1 kΩ 10 kΩ 0 4 3 digit 0 4 2 digit 0 4 2 digit 0 4 2 digit 0 6 3 digit 1 5 5 digit 399 9 Ω 3 999 kΩ 39 99 kΩ 399 9 kΩ 3 999 MΩ 39 99 MΩ Diode test 3 0 V 1 mV Impedance 10 MΩ less than 100 pF Voltage drop maximal 800 mV for mA test input maximal 1 V for A test input Test input protection Fuse F1 1 A ...

Страница 13: ...Robert Bosch GmbH Automotive Service Solutions Franz Oechsle Straße 4 73207 Plochingen DEUTSCHLAND www bosch com bosch prueftechnik bosch com 1 689 979 642 2014 11 03 ...

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