T.I.S. INSTRUMENTS MFT-PRO, Краткое руководство пользователя, Страница: 4 / 24

MFT-PRO
Quick reference guide
EN – 2
1. PRECAUTIONS AND SAFETY MEASURES
The models MFT-PRO is been designed in compliance with Directives IEC/EN61557, BS7671 17th edition
and IEC/EN61010, relevant to electronic measuring instruments. For your safety and in order to prevent
damaging the instrument, please carefully read all notes preceded by symbol
:
CAUTION

Do not carry out any voltage or current measurement in humid environments

Do not carry out any measurements in case gas, explosive materials or flammables are
present, or in dusty environments

Avoid contact with the circuit being measured if no measurements are being carried out

Avoid any contact with exposed metal parts, with unused measuring probes, circuits, etc.

Do not carry out any measurement in case you find anomalies in the instrument such as
deformation, breaks, substance leaks, absence of display on the screen, etc.

The instrument has been designed for use in environments of pollution degree 2.

Only the accessories provided together with the instrument will guarantee safety standards.
They must be in good conditions and replaced with identical models, when necessary.

Do not test circuits exceeding the specified current and voltage limits.

Before connecting the measuring cables, the alligator clips and the clamps to the circuit
being measured, check that the desired function has been selected.

Pay special attention when measuring voltages higher than 25V in special environments (such
as construction sites, swimming pools, etc.) and 50V in normal environments, since a risk of
electrical shock exists.

The instrument can be used for measurements on installations with overvoltage category
CAT III 240V to earth and CAT III 415V between inputs. Category CAT III is suitable for
measurements carried out on installations inside buildings with low voltage (examples are
distribution boards, wirings, switches, fixed installation sockets, electric motors, industrial
equipment).

It is forbidden to open the instrument, except to qualified technicians. Except for battery
replacement, which must be carried out as described in § 5.2 of the manual, no other
maintenance, replacement or repair of the instrument's internal parts is provided for.
The following symbols are used by the instrument:
CAUTION : it is necessary to consult the instruction manual in order to identify the nature of the
potential danger and the actions to be taken. Observe the instructions given in this manual.
Improper use could damage the instrument and create dangerous situations for the operator.
High voltage danger: electrical shock hazard
Double insulation
AC voltage or current
DC voltage or current
Connection to earth
The symbol indicates that the appliance and its accessories must be collected separately and
correctly disposed of.
The symbol indicates that the instrument must not be connected to systems with voltage higher
than 460V
1.1. BEFORE AND AFTER USE
Please carefully read the following recommendations and instructions:

Always disconnect the measuring leads from the circuit being measured before changing function.

When the instrument is connected to the circuit under test, do not touch any unused terminal.

During current measurement, any other current near the clamps may affect measurement precision.

When measuring current, always put the conductor as near as possible to the middle of the clamp jaw, to
obtain the most accurate reading.