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Chapter II 

 

 

5000-count portable digital multimeter, with current input 

14 

USER’S MANUAL 

CONTENTS

 

 

1. 

GENERAL INSTRUCTIONS.................................................................................................................... 15 

1.1. 

Precautions and safety measures .................................................................................................... 15 

1.1.1.  Preliminary.................................................................................................................................... 15 
1.1.2.  During use .................................................................................................................................... 15 
1.1.3.  Symbols........................................................................................................................................ 16 
1.1.4.  Instructions ................................................................................................................................... 16 

1.2. 

Protection devices ............................................................................................................................ 16 

1.3. 

Safety devices .................................................................................................................................. 17 

1.4. 

Warranty........................................................................................................................................... 17 

1.5. 

Maintenance and metrological verification ....................................................................................... 17 

1.6. 

Unpacking - Repackaging ................................................................................................................ 17 

 

2. 

DESCRIPTION......................................................................................................................................... 18 

2.1. 

Selector switch ................................................................................................................................. 18 

2.2. 

Keypad ............................................................................................................................................. 18 

2.3. 

Display.............................................................................................................................................. 18 

2.4. 

Power supply .................................................................................................................................... 18 

2.5. 

Input terminals .................................................................................................................................. 18 

 

3. 

GETTING STARTED ............................................................................................................................... 19 

3.1. 

Connecting the test leads ................................................................................................................. 19 

3.2. 

Switching on the instrument ............................................................................................................. 19 

3.3. 

Switching off the instrument ............................................................................................................. 19 

3.4. 

Special configuration ........................................................................................................................ 19 

3.5. 

Multimeter maintenance ................................................................................................................... 19 

3.5.1.  Fuse self-test................................................................................................................................ 19 
3.5.2.  Battery self-test............................................................................................................................. 20 
3.5.3.  Replacing the battery or fuses...................................................................................................... 20 
3.5.4.  Cleaning ....................................................................................................................................... 20 
3.5.5.  Storage ......................................................................................................................................... 20 

 

4. 

FUNCTIONAL DESCRIPTION ................................................................................................................ 21 

4.1. 

RANGE / AC+DC key....................................................................................................................... 21 

4.1.1.  ADPDC / ADPAC+DC Position .................................................................................................... 21 
4.1.2    500 mADC / 500 mAAC+DC Position .......................................................................................... 21 
4.1.3.  10 ADC / 10 AAC+DC Position .................................................................................................... 22 

4.2. 

MIN/MAX key.................................................................................................................................... 22 

4.3. 

MEM  / AUTO MEM key ................................................................................................................... 22 

4.4                 key.......................................................................................................................................... 22 

 

5. 

TECHNICAL SPECIFICATIONS.............................................................................................................. 23 

5.1. 

General............................................................................................................................................. 23 

5.2. 

Characteristics.................................................................................................................................. 23 

5.2.1.  DC voltages .................................................................................................................................. 23 
5.2.2.  AC voltages (AC and AC+DC) ..................................................................................................... 23 
5.2.3.  DC current .................................................................................................................................... 24 
5.2.4.  AC currents (AC+DC)................................................................................................................... 24 
5.2.5.  Resistance / Continuity test .......................................................................................................... 24 
5.2.6.  Capacitance.................................................................................................................................. 25 
5.2.7.  Diode threshold voltage measurement......................................................................................... 25 
5.2.8.  Frequencies.................................................................................................................................. 25 
5.2.9.  Safety ........................................................................................................................................... 25 
5.2.10. 

General information.................................................................................................................. 26 

5.2.11. 

Environment ............................................................................................................................. 26 

5.2.12. 

EMC.......................................................................................................................................... 26 

5.3. 

Accessories ...................................................................................................................................... 27 

5.3.1.  Supplied with the multimeter ........................................................................................................ 27 
5.3.2.  Optional ........................................................................................................................................ 27 

 

Summary of Contents for MX 24B

Page 1: ...IMETER DIGITAL MULTIMETER MULTIMETRO DIGITALE MULTIMETRO DIGITAL Notice de fonctionnement page 1 Chapitre User s manual page 14 Chapter Bedienungsanleitung Seite 28 Kapitel Libretto d istruzioni pagin...

Page 2: ...Multim tre digital portable 5000 points avec entr e courant 5 6 18 17 16 15 14 13 12 11 7 1 2 3 4 19 20 21 22 8 9 10 500mA MX 24B 500mADC...

Page 3: ...nfiguration 19 3 5 Multimeter maintenance 19 3 5 1 Fuse self test 19 3 5 2 Battery self test 20 3 5 3 Replacing the battery or fuses 20 3 5 4 Cleaning 20 3 5 5 Storage 20 4 FUNCTIONAL DESCRIPTION 21 4...

Page 4: ...CAT III The circuits of CAT III are power supply circuits of power equipment with important transient overvoltages Example fixed installation or industrial equipment CAT IV The circuits of CAT IV may...

Page 5: ...replaced with fuses of the same rating and type Any adjustment maintenance or repair work carried out on the multimeter while it is live should be carried out only by appropriately qualified personnel...

Page 6: ...misuse of the equipment or use in association with incompatible equipment 2 Modification of the equipment or any related software without the explicit authorization of the manufacturer 3 Repairs nece...

Page 7: ...ect the autoranging mode RANGE AC DC key store a value MEM key activate the MIN MAX AVG detection mode MIN MAX key select a function derived from the main function or switch on the multimeter again af...

Page 8: ...operated F Note For user safety automatic shutdown is also disabled when a measured magnitude voltage current present at the input exceeds dangerous level indicator displayed 3 4 Special configuratio...

Page 9: ...Use the following procedure 1 Disconnect test leads from any inputs terminals 2 Using a appropriate tool make slide the case bottom of the instrument 3 Replace the battery or fuse respect the value a...

Page 10: ...multimeter again after an automatic shutdown It can also be used to access secondary functions associated with the selector switch positions mode AC DC The flowcharts below define these various funct...

Page 11: ...ond short press returns the multimeter to normal mode The MEM sign appears on the display The MEM mode is avaible on all measurement Long press AUTO MEM Accesses or quits the autostore mode The MEM si...

Page 12: ...1000 V ranges Common mode rejection 500 mV range at 50 and 60 Hz better than 120 dB Serial mode rejection at 50 and 60 Hz better than 60 dB Intermittent signal sounds and OL on the display in case of...

Page 13: ...5 3 Acceptance 20 A overload during 30 s max observing a 5 min break at least between two measurements Specifications applicable from 5 to 100 of the range for a sinusoidal signal in band 40 Hz to 1 k...

Page 14: ...of points 5 000 Range selection automatic or manual Maximum open circuit voltage 4 V 5 2 7 Diode threshold voltage measurement Measurable voltages 0 to 1 999 V Measurement current 1 mA 20 Resolution...

Page 15: ...measurements s Bargraph 20 measurements s 5 2 11 Environment Reference temperature 23 C 5 C Limit range of operation 5 C to 45 C Rated range of use 10 C to 55 C Storage temperature range 20 C to 70 C...

Page 16: ...K thermocouple 1 mV C general purpose and surface type 25 C to 350 C HK0210N Optical tachometer 100 rpm to 60 000 rpm HA1237 Current clamps Range 200 AAC 1 AAC 1 mVAC max cable 20 mm connection socket...

Page 17: ...g des Multimeters 33 3 5 1 Selbsttest der Sicherungen 33 3 5 2 Selbsttest der Batterie 34 3 5 3 Ersetzen der Batterie und der Sicherungen 34 3 5 4 Pflege 34 3 5 5 Lagerung 34 4 FUNKTIONSBESCHREIBUNG 3...

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