Metrix MX 650 Bruksanvisning
Metrix
Multimeter
MX 650
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MX 650
Pince multimètre AC
AC Clamp-on meter
AC-Vielfachmesszange
Pinza multimetro AC
Pinza multímetrica CA
MX 655
Pince multimètre ACrms/DC
ACrms/DC Clamp-on meter
ACrms/DC- Vielfachmesszange
Pinza multimetro ACrms/DC
Pinza multímetrica CArms/CC
Notice de fonctionnement
User's manual
Bedienungsanleitung
Libretto d'istruzioni
Manual de instrucciones

Chapitre II
MX 650 / MX 655 1
User's manual
Chapter II - page 16

Chapter II
MX 650 / MX 655
16
TABLE OF CONTENTS
1. GENERAL INSTRUCTIONS.......................................17
1.1. Precautions and safety measures........................17
1.1.1. Before using..................................................17
1.1.2. When using the instrument...........................17
1.1.3. Symbols ........................................................17
1.1.4. Instructions....................................................18
1.1.5. Cleaning........................................................18
1.2. Warranty...............................................................18
1.3. Maintenance.........................................................18
1.4. Unpacking - Repacking........................................18
2. DESCRIPTION OF THE INSTRUMENT.....................19
2.1. Description of front and rear.................................19
2.2. Description of the display.....................................20
3. GENERAL DESCRIPTION.........................................21
3.1. Battery installation and replacement....................21
3.2. Zero function and relative measurement..............21
3.3. Memory.................................................................21
3.4. Automatic range...................................................21
3.5. Auto cut-off...........................................................21
3.6. PEAK function (1 ms)...........................................22
3.7. MAX MIN function (500 ms) .................................22
4. FUNCTIONAL DESCRIPTION ...................................22
4.1. Measuring AC voltage..........................................22
4.2. DC voltage measurement ....................................23
4.3. Measuring AC current ..........................................23
4.4. Measurement of direct current (MX 655 only)......24
4.5. Measuring resistance...........................................24
4.6. Continuity test with buzzer....................................25
4.7. Diode test.............................................................25
4.8. Measurement of the voltage frequency................26
4.9. Measurement of the current frequency.................26
5. TECHNICAL SPECIFICATIONS ................................27
5.1. General.................................................................27
5.2. Characteristics......................................................27
5.2.1. Direct voltage (automatic ranges).................27
5.2.2. Alternating voltage (automatic ranges).........27
5.2.3. Direct current (MX 655 only) .........................27
5.2.4. Alternating current.........................................28
5.2.5. Resistance (Ω) (automatic ranges)...............28
5.2.6. Diode .....................................................28
5.2.7. Frequency Hz (automatic ranges).................28
5.3. Safety...................................................................28
5.4. General information..............................................29
5.5. Environmental conditions.....................................29
5.5.1. Temperature .................................................29
5.5.2. E.M.C............................................................29
5.6. Delivery configuration...........................................29

Chapter II
MX 650 / MX 655
17
1. GENERAL INSTRUCTIONS
1.1. Precautions and safety measures
1.1.1. Before using
You have just acquired a 4,000-count multimeter clamp. We
thank you for your confidence.
This multimeter clamp complies with the IEC 61010 norms
concerning electronic measuring instruments. For your own
safety and to prevent damage to the instrument, you must
follow the instructions given in this manual.
∗This instrument can be used for measuring category III
installation circuits, in an environment with a pollution
degree of 2 and with a voltage no higher than 600 V in
relation to the earth.
∗Definition of the installation categories
(see IEC 61010-1 publication):
CAT I: CAT I circuits are circuits protected by low level
transient -voltage surge limiters
Example: protected electronic circuits
CAT II : CAT II circuits are household or similar appliance
power circuits, which may carry medium-level transient
voltage surge.
Example: household appliance and portable tool power
supplies
CAT III : CAT III circuits are high-power appliance power
circuits, which may carry high-level transient voltage
surges.
Example: industrial machinery or instrument power
supplies
CAT IV : CAT IV circuits are circuits which can carry very
substantial transient -voltage surges.
Example: power feeders
For safety reasons, you should only use leads that comply with
the IEC 61010 standard.
Before using, always check that they are in perfect working
order.
1.1.2. When using the instrument
•Never exceed the protection limit values indicated in the
specifications for each type of measurement.
•When the multimeter clamp is linked to the measurement
circuits, do not touch any unused terminals.
•Before changing the function, disconnect the measure-
ment leads from the circuit measured.
•Never measure resistances on a live circuit.
1.1.3. Symbols
Refer to the user's manual
Risk of electric shock
Double insulation

Chapter II
MX 650 / MX 655
18
1.1.4. Instructions
• Before opening the instrument, disconnect it from the
measuring circuits and make sure that you are not charged
with static electricity, which could irreparably damage the
instrument's internal elements.
• A "qualified person" is someone who is familiar with
the installation, the construction, the application and the
dangers at hand. This person is authorised to power up and
power down the installation and equipment, in compliance with
safety regulations.
1.1.5. Cleaning
Turn off the power supply. Clean with a damp cloth and soap.
Never use abrasive products or solvents.
1.2. Warranty
This equipment is guaranteed against any material or
manufacturing defects, in accordance with the general
conditions of sale.
During the warranty period (1 year), the instrument can only be
repaired by the manufacturer, who reserves the right to repair
the instrument or to exchange all or part of it. If the equipment
is returned to the manufacturer, the outgoing transport costs
are borne by the customer.
The warranty is not applicable in the following cases:
1. improper use of the equipment or use of it in conjunction
with incompatible equipment;
2. modifications to the equipment without the explicit
authorisation of the manufacturer's technical department;
3. work carried out on the instrument by a person not
approved by the manufacturer;
4. adaptation for a specific application, not included in the
definition of the equipment or the user's manual
5. knocks, falls or flooding.
The contents of this manual must not be reproduced in any
form without our consent.
1.3. Maintenance
Return your instrument to your distributor for any work to be
done within or outside the guarantee.
1.4. Unpacking - Repacking
All the equipment was checked mechanically and electronically
before shipment. Every precaution was taken to ensure that
you receive the instrument undamaged. It is a good idea to
check quickly to detect any damage that may have occurred
during transport. If there is any damage, immediately notify the
transporter of the customary reservations.
Caution! If you ship this instrument on elsewhere,
use preferably the original packaging and indicate the
reasons for reshipment as clearly as possible in a note
enclosed with the equipment.

Chapter II
MX 650 / MX 655
19
2. DESCRIPTION OF THE INSTRUMENT
2.1. Description of front and rear
10
9
2
6
3
1
600 1000
600V
750
11
VV
MINMAX
40
A
Hz
RANGE REL
600
PEAK
1mS
1000
HOLD
8
7
5
4
HOLD
PEAK
1mS
1000
750
600 1000
RELMIN
600
MAX
400
A
1000
40
V
Hz
600
10
9
2
6
3
1
11
8
7
5
4
PLEASE READ
NEDA 1604 6F 22 006P
MANUAL FOR SAFET
INPUTS BEFORE
OPENING THE CASE.
TO AVOID ELECTRIC
SHOCK REMOVE ALL
POLLUTION
9V BAT
WARNING
IEC 1010
600V CAT III
Y
TERY
DEGREE 2
1 Jaws
2 Trigger
3 Selector switch
4 HOLD button
5 PEAK button
6 MIN / MAX button
7a RANGE button
7b AC/DC button
8 ∆REL button
9 Display
10 COM input terminal
11 + input terminal
12 Battery housing
a b
12

Chapter II
MX 650 / MX 655
20
2.2. Description of the display
MX
650 MX
655
Auto cut-off
MAX Max. value
MIN Min. value
Positive peak
Continuity test
Diode test
Negative peak
Hold
Manual range
Resistance measurement
Voltage measurement
Current measurement
Frequency measurement
K
Kilo
Bargraph
Batteries down
Direct current
Negative value
Zero function and
relative measurement
Alternating current

Chapter II
MX 650 / MX 655
21
3. GENERAL DESCRIPTION
3.1. Battery installation and replacement
1. displayed when the voltage supplied by the
batteries is lower than the operating voltage.
2. Before changing the batteries, position the switch to
"OFF", unplug the measurement leads and disconnect
the clamp from the circuit being measured .
3. Using a Phillips screwdriver, loosen the 2 screws holding
the back of the case in place.
4. Replace the old battery with a new 9V battery, ensuring
that the polarity is respected.
5. Put the battery flap back in place and tighten the fixing
screws.
3.2. Zero function and relative measurement
This function is used to perform RCD measurements (in A, V
or Ω) by recording a "calibration value" which is subtracted
from the measurements.
To activate this function, press on the ∆
∆∆
∆REL button (the " "
symbol is displayed).
The last value measured becomes the reference value which
will be subtracted from any subsequent measurements.
To display the reference value, press again on the ∆
∆∆
∆REL
button (the value is displayed and the " " symbol flashes).
To quit this function, press the zero button for 2 seconds.
3.3. Memory
It is possible to freeze the value displayed by pressing on the
"HOLD" button. To deactivate this function, press the "HOLD"
button a second time.
3.4. Automatic range
MX 650 and MX 655 multimeter clamps have automatic range
selection (Autorange).
On the MX 650 model, the range change can be "forced"
manually by holding the RANGE button down (the
manual range symbol appears).
The user can then choose the position of the decimal point
with short presses on the RANGE button.
To quit manual range, you must hold the RANGE button down
for at least 2 seconds; the clamp then returns to automatic
range selection mode.
3.5. Auto cut-off
The clamp shuts down automatically after 30 minutes if no
operations are performed ( symbol is displayed).
To deactivate this function, press and hold down the ∆
∆∆
∆REL
button. Then, switch the clamp on using the selector switch.
Release the button when a buzzing signal confirms the
manoeuvre (the symbol is no longer displayed).

Chapter II
MX 650 / MX 655
23
4.2. DC voltage measurement
600V
1000
750
Hz
REL
1000
PEAK
A
40
400
600
1mS
V
1000
HOLD
600
•
(MX 650) Set the switch to
V.
•
(MX 655) Set the switch to
V.
Press on the /
button to
display the
symbol (direct
signal).
Connect the red test lead to
the "+" input terminal and the
black test lead to the "COM"
input terminal.
Then place the touch prods
in contact with the points
where the DC voltage is to
be measured.
Then read the result on the
display.
4.3. Measuring AC current
600V
1000
400
40
600
1mS
PEAK
A
750
1000
V
Hz
REL
1000
HOLD
600
•(MX 650) Set the switch to A (corresponding to the 1000
A~ and 400 A~ automatic calibres).
•(MX 655) Set the switch to 1000 A . The symbol
(alternating signal) should be displayed. If not, press on the
/ button, to make it appear.
Open the clamp jaws by pressing the trigger. Position the
clamp around the conductor to be measured.
Release the trigger. Check the clamp is properly closed. Read
the result of the measurement on the display.
If reading is difficult, press the HOLD button and read the
result afterwards.
If necessary, for better resolution you can move to a lower
range by means of the selector switch.
Note: For safety reasons, disconnect the measuring leads
before measuring current. The clamp should encircle only one
conductor, otherwise the measurement result may be
incorrect. The best measurement is obtained with the
conductor centred in the middle of the jaws.

Chapter II
MX 650 / MX 655
24
4.4. Measurement of direct current (MX 655 only)
1000
600
600
750
1000
V
1000
MAXMIN
40
400
600
A
1mS
PEAK
Hz
REL
HOLD
Set the switch to 1000 A .
Press on the / button to
display the symbol (direct
signal).
Once the display is stabilised,
press on the ∆
∆∆
∆REL button to
automatically reset the DC zero.
Then follow the same procedure
as for measuring alternating
current.
See previous §.
Note: The correct connection
direction to obtain a positive
value is indicated on the right-
hand jaw.
4.5. Measuring resistance
600V
750
1000
PEAK
1mS
400
40
A
REL
Hz
1000
V
600 1000
HOLD
600
Set the switch to Ω.
Connect the red test lead to the
"+" input terminal and the black
test lead to the "COM" input
terminal.
Place the touch prods in contact
with the points to be measured
and read the result on the
display.
Note: Always ensure that the
circuit is disconnected from the
power supply before measuring
resistance!
To measure low resistances, it
is preferable to offset the
resistance of the measurement
leads.
To do this, short-circuit the lead
touch prods then press the
∆
∆∆
∆
REL button before taking the
measurements.
12.00

Chapter II
MX 650 / MX 655
26
4.8. Measurement of the voltage frequency
600V
1000
750
PEAK
1mS
400
40
A
REL
Hz
1000
V
600 1000
HOLD
600
Set the switch to "Hz".
Connect the red test lead to
the "+" terminal and the black
test lead to the "COM"
terminal.
Place the touch prods in
contact with the points whose
frequency is to be measured.
Read the result on the display.
4.9. Measurement of the current frequency
1000
750
600V
PEAK
1mS
400
40
A
REL
Hz
1000
V
600 1000
HOLD
600
Set the switch to "Hz".
Open the clamp by pressing the
trigger.
Encircle the conductor and
close the jaws correctly by
releasing the trigger.
Read the result on the display.
Note: For safety reasons,
disconnect the clamp measuring
leads before measuring current
frequency. The clamp should
encircle only one conductor,
otherwise the measurement
result may be incorrect.
Note: To measure frequency, either the input terminals
(voltage) or the clamp jaws (current) can be used, but the
two sources should never be used at the same time.
Produktspecifikationer
Varumärke: | Metrix |
Kategori: | Multimeter |
Modell: | MX 650 |
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