Sonel CMP-1010 User manual

35
USER MANUAL
DIGITAL CLAMP METER
CMP-1010
Version 1.01 11.09.2023

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CMP-1010 True RMS multimeter is intended for measuring direct
and alternating voltage, direct and alternating current, resistance,
capacitance, frequency, duty cycle (filling) and temperature and for
testing diodes and circuit continuity.
The most important features of CMP-1010 include:
possibility of carrying out measurements in the output cir-
cuits of inverters and frequency converters,
non-contact voltage detector,
automatic and manual range setting,
REL function for relative measurements,
PEAK MAX/PEAK MIN function for displaying maximum and min-
imum peak values,
the INRUSH function captures the starting current precisely in the
beginning of 100-millisecond period when the device is just started,
HOLD function used to maintain the read-pot on the me-
ter screen,
backlight of the screen to read the measurement results in
poor light,
built-in flashlight for lighting the measurement location,
sound signal for circuit continuity,
AUTO-OFF function,
4-digit display (read-out 6000).

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CONTENTS
1Introduction................................................................ 39
2Safety.......................................................................... 40
2.1General rules....................................................................40
2.2 Safety symbols.................................................................41
3Preparing the meter for operation............................ 42
4Functional description .............................................. 44
4.1 Measuring terminals and functions ...................................44
4.2 Display.............................................................................47
4.3 Leads...............................................................................48
5Measurements............................................................ 49
5.1 Current measurement.......................................................49
5.2 Non-contact voltage detector............................................50
5.3 Voltage measurement ......................................................51
5.4 Frequency measurement..................................................52
5.5 Measurement % of duty cycle (pulse filling indicator) ............52
5.6 LoZ measurement (elimination of interference and induced
voltages) ..........................................................................53
5.7 Measurement of resistance ..............................................53
5.8 Circuit continuity test ........................................................54
5.9 Diode test.........................................................................54
5.10 Measurement of capacitance............................................55
5.11 Temperature measurement ..............................................56
6Special features ......................................................... 57
6.1 Button REL ................................................................57
6.1.1 REL function..............................................................57
6.1.2 Display backlight........................................................57
6.2 RANGE button .................................................................58
6.3 Button MODE/INRUSH.....................................................58
6.3.1 Changing the measurement mode .............................58
6.3.2 INRUSH function........................................................58
6.4 PEAK/VFD button.............................................................59
6.4.1 PEAK MAX/PEAK MIN function .................................59

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6.4.2 VFD function..............................................................59
6.5 Button HOLD ............................................................60
6.5.1 HOLD function ...........................................................60
6.5.2 Flashlight function......................................................60
6.6 Auto-Off............................................................................60
7Replacing the batteries ............................................. 61
8Maintenance and care ............................................... 62
9Storage ....................................................................... 63
10 Dismantling and disposal ......................................... 63
11 Specifications ............................................................ 64
11.1 Technical data..................................................................64
11.2 Operating data .................................................................67
12 Service........................................................................ 68

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1 Introduction
Thank you for purchasing Sonel multimeter. CMP-1010 meter is
a modern, easy and safe measuring device. Please acquaint your-
self with this manual in order to avoid measuring errors and prevent
possible problems in operation of the meter.
This manual contains three types of warnings. They are pre-
sented as a framed text describing the possible risks for the user
and the device. Texts WARNING describe situations, which
may endanger user's life or health, when instructions are not fol-
lowed. Texts CAUTION! begin a description of a situation,
which may result in device damage, when instructions are not fol-
lowed. Indication of possible problems is preceded by symbol .
WARNING
CMP-1010 meter is designed to measure the AC/DC cur-
rent and voltage, frequency, resistance, capacitance, as
well as to test the circuit continuity and diodes. Any ap-
plication that differs from those specified in the present
manual may result in a damage to the device and consti-
tute a source of danger for the user.
CMP-1010 meter must be operated only by appropriately
qualified personnel with relevant certificates authorising
the personnel to perform works on electric systems. Un-
authorized 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 manu-
al 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.

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2 Safety
2.1 General rules
In order to provide conditions for correct operation and the cor-
rectness 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):
Normal locations
Wet locations
60 V DC
35 V DC
30 V AC RMS
16 V RMS
42.4 V AC of peak value
22.6 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, always disconnect the test leads from the
tested circuit,
hold the measuring probes by the spot provided, restricted by a spe-
cial barrier to avoid accidental contact with exposed metal parts,
If during the measurement symbol OL appears on the screen, it indi-
cates that the measured value exceeds the measurement range,
It is unacceptable to operate:
a damaged meter which is completely or partially out of order,
a device with damaged insulation of test leads,
a meter stored for an excessive period of time in disadvan-
tageous conditions (e.g. excessive humidity).
repairs may be carried out only by an authorised service point.

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WARNING
Never start the measurements if you have wet or
damp hands.
Do not perform measurements in explosive atmos-
phere (e.g. in the presence of flammable gases, va-
pours, dusts, etc.). Using the meter in such condi-
tions may result in sparking and cause an explosion.
The limit values of the input signal
Function
The maximum
input value
A DC, A AC
1000 A
V DC, V AC
1000 V DC/AC RMS
Voltage frequency, duty cycle
1000 V DC/AC RMS
Resistance, continuity, diode
test, capacitance, temperature
300 V DC/AC RMS
2.2 Safety symbols
This symbol located near another symbol or terminal,
indicates that the user should read the further information
contained in the manual.
This symbol located near the terminal, indicates that in
normal use there is a possibility of dangerous voltages.
Protection class II –double insulation
Terminals with this marking cannot be connected to a
circuit where the voltage to ground exceeds the maximum
safe voltage of the device.

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3 Preparing the meter for operation
After purchasing the meter, check whether the content of the
package is complete.
Before performing the measurement:
make sure that the battery level is sufficient for measurements,
check whether the meter casing and insulation of the test leads
are not damaged,
to ensure consistent measurement results it is recommended to con-
nect black lead to COM terminal and red lead to other terminals,
when the meter is not in use, set the function switch in OFF position.
The device has the AUTO-OFF function triggered after
30 minutes of user inactivity. To turn the meter on again, set the func-
tion switch to OFF position and then set it at the desired function.
WARNING
Connecting wrong or damaged leads may cause
electric shock.
The meter must not be connected to the voltage
source when it is set to current or resistance meas-
urement or to diode test. Failure to observe this pre-
caution may damage the meter!
When using the meter, be sure to:
discharge capacitors in the tested power sources,
disconnect the power supply when measuring the resistance and
diode tests,
turn off the meter and disconnect test leads before removing the
back cover to replace the batteries.

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WARNING
Do not use the meter if the cover of battery compart-
ment is removed.
It is possible that in certain low ranges of AC or DC volt-
age, when the meter is not connected to the leads, the
screen will show random and variable readings. This is a
normal phenomenon, which results from the input sensitivi-
ty with high input resistance. When connected to a circuit,
the read-out will stabilize and the meter will provide the cor-
rect value.

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4 Functional description
4.1 Measuring terminals and functions

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Non-contact voltage detector
Current clamp
Flashlight
Indicator light of the non-contact voltage detector
Button HOLD /
HOLD mode –freezing the measurement results on the display
(press briefly)
flashlight mode (press and hold)
Clamp-opening trigger
Rotary switch
Function selection:
1000A –measurement of direct and alternating current up to
1000 A
600A –measurement of direct and alternating current up to
600 A
Temp ºC ºF –temperature measurement
ΩCAP –measurement of resistance, continuity, diode
test, measurement of capacitance
–measurement of direct voltage
Hz% –measurement of alternating voltage, measurement of
frequency and duty cycle
OFF –the meter is switched off
LoZ Hz% –low impedance measurement of alternating voltage,
measurement of frequency and duty cycle

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Button REL
oREL mode –press briefly:
Reset display (DC current measurement)
Displaying the measurement result related to the reference
value (other measuring functions)
oActivating the backlight of the display (press and hold)
LCD display
Function buttons
MODE / INRUSH button
The choice of sub-functions and modes assigned to the selected
measurement function
oChanging the measurement mode in functions: A / temperature
measurement / resistance / capacitance / continuity / diode test
/ V / frequency / duty cycle (press briefly)
oDisplays the starting current (press and hold)
RANGE button
Ustawianie zakresu pomiarowego:
oautomatic (press and hold)
omanual (press briefly)
PEAK / VFD button
oDisplays peak value of the measured signal (press briefly)
oMeasurement of current and voltage behind the inverter, fre-
quency converter, in the VFD system (press and hold)
COM measuring terminal
Measuring input, common for all measuring functions excluding current.
Measurement terminal VΩHz% CAPTemp
Measuring input for measurements other than current measurement.

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4.2 Display
Auto-off mode
AUTO
Automatic range setting
Diode test
Continuity test
P
Peak value
MAX / MIN
Maximum / Minimum value
REL
Relative measurement
H
HOLD function activated
VFD
Measurement behind the inverter, frequency converter,
in the VFD system
INRUSH
Inrush current
n / µ / m / k / M
The prefix of multiple measurement unit
V
Voltage measurement
A
Current measurement
F
Measurement of capacitance
Ω
Measurement of resistance
Hz
Measurement of frequency
%
Duty cycle measurement
°C / °F
Temperature measurement in Celsius / Fahrenheit degrees
LoZ
Low-impedance measurement
DC
Constant signal
AC
Alternating signal
Low battery
–
Negative read-out value
OL
Exceeded measurement range

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4.3 Leads
The manufacturer guarantees the correctness of read-outs only
when original test leads are used.
WARNING
Connecting wrong leads may cause electric shock or
measurement errors.
The probes are equipped with additional removable
tip guards.
The probes must be stored in a designated area.

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5 Measurements
The content of this chapter should be thoroughly read and un-
derstood since it describes methods of measurements and basic
principles of interpreting measurement results.
5.1 Current measurement
WARNING
Disconnect the test leads before measuring current us-
ing clamp.
To perform the current measurement:
set the rotary switch at 600A / 1000A ,
press MODE/INRUSH button to display the following symbol:
, if you are measuring alternating current,
, if you are measuring direct current,
use the clamp-opening trigger and attach the clamps on the
tested conduit. Only one conduit must be within the testing range
of the clamps,
read the measurement result on the display.
If DC current is measured and the meter is not attached to
the tested circuit, but it still indicates a non-zero value, then
you must reset it by pressing and holding REL button.

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5.2 Non-contact voltage detector
WARNING
The detector is designed to detect the presence of a
voltage, not for determining its absence.
Electric shock hazard. Before using the tester, check
if its operational by testing it on a known AC voltage
(i.e. next applicable socket with live voltages).
To activate the detector:
set the rotary switch at any position,
touch the tip of the detector to the tested object.
If the AC voltage is present, the indicator light will glow red.
The wires in the extension cords are often twisted. For
best results, move the tip of the detector along the wire to
locate the live line.
The indicator has a high sensitivity. It can be randomly
actuated by static electricity or other energy sources.
This is normal.
The type and thickness of the insulation, distance from
the power source, shielded cables and other factors may
affect the operation of the tester. If you are unsure about
the test result, check the presence of voltage in a differ-
ent way.

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5.3 Voltage measurement
WARNING
Electric shock hazard. The ends of measuring
probes, due to their length, may not reach the live
parts inside some network connections of low-
voltage electrical equipment, because the contacts
are arranged inside the sockets. In such a case, the
read-out will be 0 V with the simultaneous presence
of voltage in the socket.
Before acknowledging the absence of voltage in the
socket make sure that the ends of the of the probe
touch the metal contacts inside the socket.
CAUTION!
Do not measure the voltage when an electric motor lo-
cated within the circuit is being switched on or off. Re-
sulting voltage spikes may damage the meter.
To perform AC voltage measurement:
set the rotary switch at (direct voltage) or Hz% (alternating
voltage),
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the points of measurement,
read the measurement result on the display.

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5.4 Frequency measurement
To perform frequency measurement:
set the rotary switch at Hz% or LoZ Hz%,
press MODE/INRUSH button to display Hz on the screen,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the points of measurement,
read the measurement result on the display.
5.5 Measurement % of duty cycle (pulse filling indicator)
To perform the measurement:
set the rotary switch at Hz% or LoZ Hz%,
press MODE/INRUSH button, until symbol %is shown on the display,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the points of measurement,
read the measurement result on the display.

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5.6 LoZ measurement (elimination of interference and
induced voltages)
Measurement function in 'LoZ' mode eliminates the influence or
interference voltages or induced voltages, making the measurement
more accurate and reliable. These voltages may occur due to ca-
pacitive feedback between the live conductors and the unused con-
ductors located in the vicinity:
set the rotary switch at LoZ Hz%,
press MODE/INRUSH button to display the following symbol:
V AC –if you are measuring alternating voltage,
Hz –if you are measuring frequency,
%–if you are measuring duty cycle,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp,
contact probe blades to measurement points,
read the measurement result on the display.
5.7 Measurement of resistance
WARNING
Do not perform measurements on the circuit under the
voltage. Before the measurement disconnect the pow-
er and discharge capacitors.
To perform measurement of resistance:
set the rotary switch at ΩCAP,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the points of measurement; the
best solution is to disconnect one side of the tested element, to
prevent the remaining part of the circuit interfere with the read-out
of the resistance value,
read the measurement result on the display.

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5.8 Circuit continuity test
WARNING
Do not perform measurements on the circuit under the
voltage. Before the measurement disconnect the pow-
er and discharge capacitors.
To perform the continuity test:
set the rotary switch at ΩCAP,
press MODE/INRUSH button to display Ωon the screen,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the points of measurement,
read the measurement result on the display; the beep will be acti-
vated when resistance values are below approx. 50 Ω.
5.9 Diode test
WARNING
Do not perform measurements on the circuit under the
voltage. Before the measurement disconnect the pow-
er and discharge capacitors. Do not test the diode un-
der voltage.
To perform the diode test:
set the rotary switch at ΩCAP,
press MODE/INRUSH button, to display Von the screen,
connect black test lead to COM terminal, and red test lead to
VΩHz% CAPTemp terminal,
contact the tips of test probes to the diode. The red test probe
should contact the anode and the black should contact cathode,
read the test result on the display –the forward voltage is dis-
played.
For a typical silicon rectifier diode, it is approx. 0.7 V, and for
a germanium diode it is approx. 0.3 V