MX 350
Pince multimètre AC
AC Clamp-on meter
AC-Vielfachmesszange
Pinza multimetro AC
Pinza multímetrica CA
MX 355
Pince multimètre AC/DC
AC/DC Clamp-on meter
Vielfachmesszange
AC/DC-
Pinza multímetrica CA/CC
Pinza multimetro AC/DC
User's manual
Chapter II - page 17
Chapitre I
2 MX 350 / MX 355
Chapter II
BLE OF CONTENTS
TA
1. GENERAL INSTRUCTIONS.........................18
1.1. Precautions and safety measures..............18
1.1.1. Before using..........................................18
1.1.2. When using the instrument....................19
1.1.3. Symbols ................................................19
1.1.4. Instructions............................................19
1.1.5. Cleaning................................................19
1.2. Warranty ....................................................20
1.3. Maintenance ..............................................20
1.4. Unpacking - Repacking..............................20
2. DESCRIPTION
OF THE INSTRUMENT .......21
2.1. Description of front and rear.......................21
2.2. Description of the display...........................22
3. GEN
ERAL DESCRIPTION...........................
3.1. Preparation
for use.....................................23
23
3.1.1. Power supply.........................................23
3.1.2. Battery installation and replacement......23
3.2. Zero mode / "Delta" function ......................23
3.3. Memorization, automatic range..................23
3.4. Auto cut-off.................................................24
4. FUNCTIONA
L DESCRIPTION......................24
4.1. Measuring AC voltage................................24
4.2. DC voltage measurement...........................24
4.3. Measuring AC current................................25
4.4. Measuring DC current................................25
4.5. Measuring resistance.................................26
4.6. Continuity test with buzzer.........................26
4.7. Measurement of the voltage frequency......27
4.8. Measurement of the current frequency.......27
5. TECHNICA
L SPECIFICATIONS...................28
5.1. General......................................................28
5.2. Characteristics...........................................28
5.2.1. DC voltage (Autorange).........................28
5.2.2. AC voltage (Autorange)......................... 28
5.2.3. DC current (Autorange).........................28
5.2.4. AC current (Autorange).........................28
5.2.5. Resistance (Ω) ......................................29
5.2.6. Hz frequency (Autorange) of a current ..29
5.2.7. Hz frequency (Autorange) of a voltage..29
5.2.8. Safety .................................................29
5.2.9. General information...............................29
5.3. Environmental conditions...........................30
5.3.1. Temperature..........................................30
5.3.2. E.M.C. .................................................30
5.4. Accessories................................................30
MX
350 / MX 355 17
Chapter II
1. GENERA
1.1. Precautions
L INSTRUCTIO
NS
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 measurements
on circuits in installation category II, in an environment
with pollution level 2, for voltages no greater than
300 V in relation to the earth.
∗ Definition of the installation categories
(see IEC 61010-1 publication):
: CAT I circuits are circuits protected by low
CAT I
level transient over-voltage limiters
: protected electronic circuits
Example
: CAT II circuits are household or similar
CAT II
appliance power circuits, which may carry
medium-level transient over-voltage.
: household appliance and portable tool
Example
power supplies
: CAT III circuits are high-power appliance
CAT III
power circuits, which may carry high-level
transient over-voltage.
: industrial machinery or instrument
Example
power supplies
: CAT IV circuits are circuits which can
CAT IV
carry very substantial transient over-voltage.
: power feeders
Example
For your own safety, only used leads that comply with
the IEC 61010 norm. Before using them, always
check that they are in perfect working order.
18 MX 350 / MX 355
Chapter II
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
measurement 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
Dual insulation
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
Clean the instrument with a damp cloth and soap.
Never use abrasive products or solvents.
MX 350 / MX 355 19
1.2. Warranty
Chapter II
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 con-
junction with incompatible equipment;
2. modifications to the equipment without the explicit
authorisation of the manufacturer's technical
depart-ment;
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.
Our products are patented in FRANCE and ABROAD. Our
logos are registered trade marks.
We reserve the right to modify the characteristics and
prices should technological advances make it necessary.
20 MX 350 / MX 355
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