Metrix MX0675, MX0670 User guide

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 Multimeter Clamp
 Multimeterzange
 Pinza Multimetro
 Pinza Multímetro

MX 670 / 675

E N G L I S H

User’s manual

ABLE OF CONTENTS

T

1 GENERAL INSTRUCTIONS................................

1.1 UNPACKING – PACKING..............................................21

1.2 PRECAUTIONS AND SAFETY IN MEASUREMENTS............21

2 DESCRIPTION OF THE INSTRUMENT.................23

2.1 DESCRIPTION OF THE FRONT PANEL ............................23

2.2 DESCRIPTION OF LCD DISPLAY...................................24

3 GENERAL DESCRIPTION.....................................25

3.1 CORRECTION OF ZERO IN DC MEASUREMENT ..............25

3.2 HOLD FUNCTION - FREEZE DISPLAY...........................25

3.3 AUTOMATIC RANGES ..................................................25

3.4 AUTO POWER-OFF .....................................................25

3.5 PEAK FUNCTION (1 MS)............................................25

3.6 MAX MIN FUNCTION (500 MS)...................................26

BACKLIGHT FUNCTION............................................26

3.7

3.8 DISPLAY FUNCTION.................................................26

4 OPERATION...........................................................26

4.1 AC VOLTAGE MEASUREMENT......................................26

4.2 DC VOLTAGE MEASUREMENT......................................27

4.3 MEASURING AC CURRENT..........................................27

4.4 DC CURRENT MEASUREMENT (MX675 ONLY)..............28

4.5 RESISTANCE MEASUREMENT AND AUDIO CONTINUITY

TEST.........................................................................28

4.6 °C/°F T EMPERATURE MEASUREMENT .........................29

4.7 MEASUREMENT OF VOLTAGE FREQUENCY....................30

4.8 MEASUREMENT OF AC CURRENT FREQUENCY .............30

5 TECHNICAL SPECIFICATIONS ............................31

5.1 GENERAL ..................................................................31

5.2 CHARACTERISTICS.....................................................31

5.3 ELECTRICAL SAFETY (AS PER NF EN 61010):.............32

5.4 GENERAL INFORMATION..............................................33

5.5 ENVIRONMENTAL CONDITIONS.....................................33

6 MAINTENANCE......................................................34

6.1 REPLACING THE BATTERY ..........................................34

6.2 CLEANING .................................................................35

6.3 STORAGE ..................................................................35

6.4 METROLOGICAL VERIFICATION ....................................35

6.5 REPAIRS UNDER GUARANTEE AND OUTSIDE GUARANTEE35

7 WARRANTY............................................................35

...21

2

0 MX670 / MX675

hank you for purchasing this MX670 or MX675 series

T
multimeter clamp.
To obtain the best service from your unit:

 read these operating instructions carefully,
 comply with the precautions for use.

1 GENERAL INSTRUCTIONS

If the device is used in a manner unspecified in these
instructions, the protection provided by the device may be
compromised.

1.1 Unpacking – Packing

All instruments are checked mechanically

and electronically

before shipment. All precautions are taken to be sure you
receive an undamaged instrument. If there is damage, notify
the carrier immediately.

1.2 Precautions and safety in measurements

1.2.1 Before any use

The MX670 & MX675 are dual display multimeter clamps.
These multimeter clamps are compliant with electrical
standard IEC 61010 concerning measuring instruments. For
your own safety and to prevent any damage to your measuring
instrument, you must follow the instructions in this manual.

∗ This instrument can be used for measurement on

category IV electrical installations, in a degree 2 pollution
environment, indoors at an altitude lower than 2000 m
and with a voltage in relation to ground lower than or
equal to 600 V.

* Definition of installation categories

(see IEC 61010-1):

: Circuits not directly connected to network and

CAT I
specially protected
Example: protected electronic circuits

CAT II: Circuits connected directly to low-voltage
installation

Example: power supply for domestic electrical appliances
and portable tools

CAT III: Power supply circuits in the building installation

Example: Electrical panel, circuit breakers, fixed industrial
machines or devices

CAT IV: Source circuits of building low-voltage
installation.

Example: Power feeders, counters and protection
systems

For safety reasons, you must use only measuring leads, of

of the

voltage and category at least equal to those

instrument
and compliant with standard IEC 61010.
Before use, always check the integrity

of the

instrument casing

and cable insulation.

M

X670 / MX675 21

.2.2 Meaning of symbols used

1

Symbol Meaning Symbol Meaning

Instrument protected

by double isolation.
Alternating current. Battery.

Direct current.

CAUTION -

DANGER! Refer to

the operating manual.

Caution, risk of
electrical shock

Audible continuity test

Clamp:

Application or

withdrawal authorized

on conductors under

dangerous voltage

Ground.

The CE marking

guarantees

conformity with

European

directives and with

regulations

covering EMC.

Selective sorting

of waste for

recycling electrical

and electronic

equipment within

the European

Union.

In accordance with

the WEEE

2002/96/EC

directive: This

equipment must

not be processed

as household

waste.

1.2.3 When using the instrument

To prevent electrical discharge, injury or damage to the
device, and to ensure you use the multimeter without risk,
follow the safety recommendations
below:

• Read the operating instructions fully before using this

device and observe all safety instructions.

• This device must be used indoors, up to 2000 m altitude.

• Never exceed the protection limit values indicated in the

specifications for each type of measurement.

• When the multimeter clamp is inserted into the

measurement circuits, do not touch the unused
measurement cables or terminals.

• Before changing the function, disconnect the

measurement leads from the circuit measured.

• Never measure resistances on a live circuit. Disconnect

the power and discharge all high voltage condensers
before performing a resistance or continuity
measurement.

• Avoid working alone.

• Use the device only as specified in this manual;

otherwise, the protection provided by this multimeter may
be altered.

• Do not use this device if it appears damaged.

• Inspect the integrity of lead insulation. Replace damaged

leads.

• Be careful when working with voltages higher than

DC or 33 Vrms and 46.7 Vpp, such voltages can

70 V
pose a risk of electrocution. Depending on conditions, the
use of individual protection is recommended.

• Always

keep hands behind the physical protection of the

tips or the clamp during a measurement.

2

2 MX670 / MX675

Always

•

• Before opening the instrument, disconnect it from the

2 DESCRIPTION OF THE INSTRUMENT

2.1 Description of the front panel

use the type of battery specified.

measurement circuits, switch off and make sure you are
not charged with static electricity, which would irreversibly
damage the internal components

1
2
3 Selector switch

4a

4b

A Zero&HOLD Button

5
6

MIN MAX PEAK Key

7
8

9
10
11

COM Socket Input

Physical protection

of the

instrument.

Jaws

Trigger

HOLD Button

DISPLAY Key

BACKLIGHT Key

LCD display

Socket input +

M

X670 / MX675 23

2.2 Description of LCD display

MX670 MX675

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 
 

 
 

 

 
 

 
 

 
 

 
 

 
 
 

MAX

MIN

HOLD Freeze display

Ω

Ω

ΩΩ

V

A

ZERO

PEAK
AUTO

°C
°F

Auto power-off

Max. value

MIN value

Continuity Test

Resistance

measurement

Voltage

measurement

Current measurement

Frequency

measurement

Battery low

Direct current

Negative value

ADC zero function

Alternating current

Peak Value

Automatic ranges

Degrees Celsius

Degrees Fahrenheit

24 MX670 / MX675