NexxTech 2211813 Owner's Manual

2211813

DUAL DISPLAY 29 AUTO RANGE
DIGITAL MULTIMETER

OPERATOR’S MANUAL

CONTENTS PAGE

1. Safety Information ............................................................................. 1

1.1 Introduction ............................................................................. 1

1.2 Usage ............................................................................. 2

1.3 Symbols ............................................................................. 3

1.4 Maintenance ............................................................................. 4

2. Description ............................................................................. 5-10

3. Operating Instructions ............................................................................. 11

3.1 Measuring Voltage ............................................................................. 11

3.2 Measuring Current ............................................................................. 11

3.3 Measuring Resistance ............................................................................. 12

3.4 Continuity Test ............................................................................. 13

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

3.6 Testing Transistors ............................................................................. 14

4. Specifications ............................................................................. 14

4.1 General Specifications ............................................................................. 15

4.2 DC Voltage ............................................................................. 16

4.3 AC Voltage ............................................................................. 17

4.4 DC Current ............................................................................. 18

4.5 AC Current ............................................................................. 19

4.6 Resistance ............................................................................. 20

4.7 Diode ............................................................................. 21

4.8 Audible Continuity ............................................................................. 21

4.9 Transistor ............................................................................. 21

5. Accessories ............................................................................. 22

5.1 Supplied with the multimeter ............................................................................. 22

5.2 How to use the holster ............................................................................. 22

6. Battery and Fuse Replacement ............................................................................. 24

1. SAFETY INFORMATION

This multimeter has been designed according to IEC-1010 concerning electronic measuring
instruments with an overvoltage category (CAT II) and pollution 2.
Follow all safety and operating instructions to ensure that the meter is used safely and is kept in
good operating condition.

1.1 INTRODUCTION

• When using the meter, the user must observe all normal safety rules concerning:

- Protection against the dangers of electrical current.

- Protection of the meter against misuse.

• Full compliance with safety standards can be guaranteed only if used with test leads supplied. If
necessary, they must be replaced with the same model or same electric ratings. Measuring leads
must be in good condition.

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1.2 USAGE

• Never exceed the protection limit values indicated in specifications for each range of
measurement.

• When the meter is linked to a measurement circuit, do not touch unused terminals.

• When the value scale to be measured is unknown beforehand, set the range selector at the
highest position.

• Before rotating the range selector to change functions, disconnect test leads from the circuit under
test.

• When carrying out measurements on TV or switching power circuits, always remember that there
may be high amplitude voltage pulses at test points which can damage the meter.

• Never perform resistance measurements on live circuits.

• Always be careful when working with voltages above 60V dc or 30V ac rms. Keep fingers behind
the probe barriers while measuring.

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1.3 SYMBOLS

Important safety information, refer to the operating manual.

Dangerous voltage may be present.

Earth ground.

Double insulation (Protection class II).

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!

1.4 MAINTENANCE

• Before opening the meter, always disconnect test leads from all sources of electric
current.

• For continue protection against fire, replace fuse only with the specified voltage and current
ratings:
F1: F 500mA/250V F2: F 10A/250A

• If any faults or abnormalities are observed, the meter cannot be used and it has to be checked out.

• Never use the meter unless the back cover is in place and fastened fully.

• To clean the meter, use a damp cloth and mild detergent only, do not use abrasives or solvents on it.

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2. DESCRIPTION

This meter is an auto ranging professional measuring instrument with 33/4 digit LCD, capable of
performing functions:

- DC voltage measurement (Auto Ranging)

- AC voltage measurement (Auto Ranging)

- DC current measurement

- AC current measurement

- Resistance measurement (Auto Ranging)

- Diode test

- Transistor test

- Audible continuity test

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1-7. Function Buttons

8. Transistor Testing Socket

9. Rotary Switch

10. V/Ω Input Jack

11. COM Input Jack

12. mA Input Jack

13. A Input Jack

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