Introduction; Safety; General Rules - Sonel CMM-60 Manual De Uso

Thank you for purchasing Sonel multimeter. CMM-60 meter is a modern, easy and safe measuring
device. Please acquaint yourself with this manual in order to avoid measuring errors and prevent pos-
sible problems in operation of the meter.
This manual contains two types of warnings. They are presented as a framed text describing the
possible risks for the user and the device. Texts starting with word 'WARNING' describe situations,
which may endanger user's life or health, when instructions are not followed. Word 'CAUTION!' be-
gins a description of a situation, which may result in device damage, when instructions are not fol-
lowed. Indication of possible problems is preceded by word 'Note'.
CMM-60 meter is intended for measuring direct and alternating voltage, direct and alternating
current, resistance, capacitance, frequency, duty cycle, temperature and for testing diodes and
circuit continuity. Any application that differs from those specified in the present manual may
result in a damage to the device and constitute a source of danger for the user.
CMM-60 meter must be operated only by appropriately qualified personnel with relevant certifi-
cates authorising the personnel to perform works on electric systems. Unauthorized use of the
meter may result in its damage and may be a source of serious hazard to the user.
Before operating the device, read thoroughly this manual and observe the safety regulations
and guidelines provided by the producer. Failure to follow instructions specified in this manual
may result in a damage to the device and be a source of serious hazard to the user.
2.1

General rules

In order to provide conditions for correct operation and the correctness of the obtained results, the
following recommendations must be observed:
 before using the meter read carefully this manual,
 the meter should be operated only by qualified persons that have passed health and safety training,
 be very careful when measuring voltages exceeding (as per IEC 61010-1:2010/AMD1:2016):
 60 V DC,
 30 V AC RMS,
 42,4 V AC of peak value,
as they generate a potential risk of electric shock,
 do not exceed the maximum limits of the input signal,
 during the voltage measurements do not switch the device in the current or resistance measuring
mode and vice versa,
 when changing ranges (changing the position of the rotary switch) always disconnect the test leads
from the tested circuit,
 measuring probes should be kept in the space provided, restricted by a special barrier to avoid acci-
dental contact with exposed metal parts,
 if during the measurement OL symbol is displayed, it indicates that the measured value exceeds the
measurement range. Switch to a higher range.
42
1

Introduction

WARNING:
WARNING:
WARNING:
2

Safety

CMM-60 – USER MANUAL