Sonel CMM-60 Digital Multimeter User Manual

USER MANUAL
INDUSTRIAL MULTIMETER CMM-60
v1.13 30.06.2023

CMM-60 Digital Multimeter

CMM-60 multimeter is intended for measuring direct and alternating voltage, direct and alternating current, resistance, capacitance, frequency (in electrical and electronic devices/systems), duty cycle (filling), temperature and for testing diodes and circuit continuity.
The most important features of CMM-60 include:

• large and clear colour display 3.5″
• function of data recording with graphical presentation of results,
• built-in memory for recording the results,
• Bluetooth wireless communication for data transmission,
• a low pass filter,
• automatic and manual range setting,
• HOLD function used to hold the measurement results on the screen,
• REL function for relative measurements,
• MAX/MIN function for displaying maximum and minimum values,
• function of displaying peak values,
• sound signal for circuit continuity,
• AUTO-OFF function,
• two-component housing, waterproof.

Introduction

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 possible 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!’ begins a description of a situation, which may result in device damage, when instructions are not followed. Indication of possible problems is preceded by word ‘Note’.
WARNING:
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.
WARNING:
CMM-60 meter must be operated only by appropriately qualified personnel with relevant certificates 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.
WARNING:
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.

Safety

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 accidental 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.

• it is unacceptable to operate the device when:
  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 disadvantageous conditions (e.g. excessive humidity).

• repairs may be carried out only by an authorised service point.

WARNING:
Never start the measurements if you have wet or damp hands.
WARNING:
Do not perform measurements in explosive atmosphere (e.g. in the presence of flammable gases, vapours, dusts, etc.). Using the meter in such conditions may result in sparking and cause an explosion.

CAUTION!
The limit values of the input signal

Function| The maximum input value
V DC or V AC| 1000 V DC/AC RMS
mA AC/DC| Quick acting fuse 800 mA 1000 V
A AC/DC| Quick acting fuse 10 A 1000 V (20 A current max for 30 sec. to 15 minutes)
Frequency, resistance, electrical capacitance, duty cycle, diode test, continuity| 1000 V DC/AC RMS
Temperature| 1000 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
| It is recommended that the terminals with such marking are not connected to the potential
exceeding 1,000 V AC or 1,000 V DC relative to the ground.

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,
• make sure that the device has fuse installed and efficient,
• check whether the meter casing and insulation of the test leads are not damaged,
• to ensure consistent measurement results it is recommended to connect black lead to COM terminal and red lead to other terminals,

WARNING:
Connecting wrong or damaged leads may cause electric shock.
WARNING:
Do not perform the measurements if the potential of the COM terminal to earth exceeds 1000 V.
WARNING:
The meter must not be connected to the voltage source when it is set to current or resistance measurement or to diode test. Failure to observe this precaution may damage the meter!
When using the meter, be sure to:

• discharge capacitors in the tested power sources,
• disconnect the power supply from the tested object when measuring the resistance and diode tests,
• turn off the meter and disconnect test leads before removing the back cover to replace the battery or fuses.

WARNING:
Do not use the meter if the cover of battery and fuse compartment is removed.
Note:
It is possible that in certain low ranges of AC or DC voltage, 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 sensitivity with high input resistance. When connected to a circuit, the read- out will stabilize and the meter will provide the correct value.

Functional description

4.1 Measuring terminals and functions

1. Liquid Crystal Display (LCD)

2. Function buttons F1 F2 F3 F4
   • The choice of sub-functions and modes assigned to the selected measurement function
   • Useful help
   • Meter Settings

3. HOLD button
   • Freezing the measurement results on the display.
   • Access to AutoHold function

4. MAX/MIN button
   • Turns MIN MAX recording on/off

5. RANGE button
   • Manual change of the measuring range (short press)
   • Entering the automatic measuring range (press and hold for approx. 2 s)

6. ESC button
   • Restoring the last screen before the automatic shutdown of the meter

7. Arrow buttons
   • Function selection in menu
   • Setting the screen contrast
   • Moving around the screen
   • Data input

8. Rotary switch
   Function selection:
   • μA Measurement of AC, DC, AC+DC up to 5,000 μA
   • mA Measurement of AC, DC, AC+DC
   • 4~20mA% Measurement of current loop 4-20 mA
   • 10A Measurement of AC, DC, AC+DC up to 10 A
   • OFF/CHG meter off/charging batteries
   • Measurement of AC, DC, AC+DC voltage
   • mVTemp measurement of AC, DC, AC+DC voltage, temperature Hz% measurement of frequency, duty cycle
   •   CAP measurement of resistance, diode test, continuity test, capacitance

9. Measuring terminal 10A
   Measuring input for AC and DC measurements, up to 10 A (permissible current of 20 A for 30 seconds).

10. Measuring terminal µA/mA
    Measuring input for AC and DC measurements, up to 500 mA.

11. Measuring terminal COM
    Measuring input, common for all measuring functions.

12. Measuring terminal V Hz% Temp
    Measuring input for measurements other than current measurements.

4.2 Display

1. Functions assigned to physical buttons F1 F2 F3 F4
2. Analog bar graph
3. Negative read-out value
4. Indicator of range selection mode (auto / manual)
5. Symbol of enabled/disabled sounds
6. Time
7. Bluetooth indicator
8. Meter mode indicator
9. Meter reading
10. Continuous overview of meter reading, when HOLD mode is active
11. Date
12. Battery charge status
13. Indicator of measured quantity
14. Mode indicator REL – reading relative to the reference value
15. Value of additional measured quantity1.

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.
Note:
robes are equipped with additional removable tip guards.

First steps

Legend:
F1 F2 F3 F4 – press one of the function buttons 2
– press one of the arrows 7
5.1 Auto-Off

• F4 (SETUP) ►▼▼(Display) F1 (DISPLAY) ▼▼▼ (Auto Power Off)  F1 (EDIT)
• Set the desired value ▲▼ F1 (OK)

Details: section 7.7.6
Note: This feature does not work with active wireless communication
5.2 Button tones on/off

• F4 (SETUP) ►▼▼(Display) F2 (FORMAT) Beeper F1 (EDIT)
• Set the desired value
  F1 (ON) – enabled
  F2 (OFF) – disabled

Details: section 7.7.6
5.3 Wireless communication

• F4 (SETUP) ►▼(Communicate) F1 (ENTER)
• Turn on Bluetooth? F1 (OK)

Details: section 7.7.5
5.4 MENU panel

• F1 (MENU) selection of the measuring mode
• F1 F2 F3 F4 selection of measurement parameters

Details: section 7.1
Note: when the meter switches off automatically and then it is restarted with ESC button, data on the screen will be lost.
5.6 HOLD function
HOLD – the upper bar of the display shows the current measured signal
AutoHold – monitors the input signal. Updates stopped read-out, when the meter detects a new stable value of the signal

• HOLD button – on/off
• F1 (AUTOHOLD)
  F1 (CANCEL) – disable AutoHold
  F4 (CLOSE) – enable HOLD/AutoHold

Details: section 7.4
Note: when the meter switches off automatically and then it is restarted with ESC button, data on the screen will be lost.
5.7 RANGE function
RANGE button enables the manual change of the measurement range.

• RANGE – enable the manual change of ranges.
• RANGE – switches measurement ranges in the loop
• RANGE (hold for 2 s) – disable the function

Details: section 7.5

Measurements

The content of this chapter should be thoroughly read and understood since it describes methods of measurements and basic principles of interpreting measurement results.
6.1 Voltage measurement up to 1000 V
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.
NOTE
Do not measure the voltage when an electric motor located within the circuit is being switched on or off. Resulting voltage spikes may damage the meter.
6.1.1 Performing the measurement
To perform voltage measurement:

• set the rotary switch at V ,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set the measurement of:
  direct current voltage VDC,
  alternating current voltage VAC (default setting),

• connect black test lead to COM terminal and red test lead to V Hz% Temp terminal,

• contact the tips of test probes to the points of measurement; red probe should be applied to the point of higher potential,

• read the measurement result on the display,

• after completing the measurements, remove test leads from the terminals of the meter.

6.1.2 Voltage measurement in dB
For range 1000 V, the meter may display the result of measurement as the attenuation expressed in decibels (dB), in the form of:

• the reference to 1 V (dBV mode)
• the reference to 1 mW (dBm mode),
• the reference to a value set by the user.

For this purpose:

• set the rotary switch at V ,
• select MENU and use arrows and F1 F2 F3 F4 buttons to set dBV or dBm.
• connect black test lead to COM terminal and red test lead to V Hz% Temp terminal,
• contact the tips of test probes to the points of measurement; red probe should be applied to the point of higher potential,
• read the result of the measurement – the main result is expressed in V and its equivalent is expressed in dB.

To set other reference value in dBm mode:

• in the measurement menu, select REF,
• use arrows ▲▼ to c=select desired reference value: 4, 8, 16, 25, 32, 50, 75, 600 or 1000 Ω,
• select OK.

6.1.3 Low pass filter
The meter is equipped with a low pass filter of alternating voltage with the threshold frequency of 1 kHz. This function blocks any voltage with a frequency exceeding 1 kHz. Voltages with a frequency below the threshold are taken into account with reduced accuracy. The filter is useful in measuring the signals of multiple sinusoidal sub-signals.
In voltage measurement mode for range of 1000 V:

• select MENU,
• use arrows and F1 F2 F3 F4 buttons to select .

6.2 Voltage measurement up to 500 mV
To perform voltage measurement:

• set the rotary switch at mVTemp1,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set the measurement of:
  direct current voltage mVDC,
  alternating current voltage mVAC (default setting),

• connect black test lead to COM terminal and red test lead to V Hz% Temp terminal,

• contact the tips of test probes to the points of measurement; red probe should be applied to the point of higher potential,

• read the measurement result on the display,

• after completing the measurements, remove test leads from the terminals of the meter.

6.3 Temperature measurement
To perform the measurement:

• set the rotary switch at mVTemp,

• select MENU,

• use arrows and F1 F2 F3 F4 buttons to set the temperature measurement Temp and unit – Celsius C or Fahrenheit F,

• place the adapter of the temperature probe in COM terminal (black leg) and VΩ CAP Hz% Temp (red leg):
  place the temperature probe in the adapter, as shown in the figure:
  thin pin of the probe (marked as +) fits to terminal +;
  thick pin of the probe (marked as K) fits to terminal –;
  reversed connection of the probe is mechanically impossible,

• contact the head of the temperature probe to the device under test. Maintain the contact of the probe head with the part of the device under test, until the reading stabilizes.

• read the measurement result on the display,

• after completing the measurements, disconnect the probe from the meter.

When you test temperature changes of the object relative to the base value, the meter may be adjusted to show these deviations. To do this, set the reference temperature:

• use F1 F2 F3 F4 buttons to select OFFSET,
• set the required temperature offset value:
• use ◄► arrows to select segment for editing,
• use ▲▼ arrows to set the desired value,
• select OK.

6.4 Measurement of frequency or % of duty cycle (pulse filling indicator)
To perform the measurement:

• set the rotary switch at Hz%,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set one of three modes:
  Hz frequency measurement
  Hz,% frequency measurement and % of the duty cycle

• connect black test lead to COM terminal and red test lead to VΩ CAP Hz% Temp terminal,

• contact the tips of test probes to the points of measurement; red probe should be applied to the point of higher potential,

• read the measurement result on the display,

• after completing the measurements, remove test leads from the terminals of the meter.

6.5 Measurement of resistance
WARNING:
Do not perform measurements on the circuit under the voltage. Before the measurement disconnect the power and discharge capacitors.
To perform the resistance measurement:

• set the rotary switch at CAP,
• select MENU and use arrows and F1 F2 F3 F4 buttons to set Ohms,
• connect black test lead to COM terminal and red test lead to V Hz% Temp 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 readout of the resistance value,
• read the measurement result on the display,
• after completing the measurements, remove test leads from the terminals of the meter.

6.7 Diode test
WARNING:
Do not perform measurements on the circuit under the voltage. Before the measurement disconnect the power and discharge capacitors. Do not test the diode under voltage.
To perform the diode test:

• set the rotary switch at ,

• connect black test lead to COM terminal and red test lead to V Hz% Temp terminal,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set Diode,

• contact the pins of test probes to the diode: red test lead should contact the anode and the black should contact cathode,

• read the test result on the display – the forward voltage is displayed.
  For a typical silicon rectifier diode, it is approx. 0.7 V, and for a germanium diode it is approx. 0.3 V
   For LEDs with a low power, typical voltage value is in the range of 1.2…5.0 V depending on the colour.
  If the diode is polarized in the reverse direction, or there is a break in the circuit, the display will show OL.
  When the diode is shorted, the meter will show a value near 0 V.

• after completing the measurements, remove test leads from the terminals of the meter.

6.8 Measurement of capacitance
WARNING:
Risk of electric shock. Disconnect the power supply from the tested capacitor and discharge all capacitors before any starting capacity measurements.
To perform the measurement:

• set the rotary switch at ,
• connect black test lead to COM terminal and red test lead to V Hz% Temp terminal,
• select MENU and use arrows and F1 F2 F3 F4 buttons to set CAP,
• contact the probe tips to the tested capacitor,
• read the measurement result on the display,
• after completing the measurements, remove test leads from the terminals of the meter.

6.9 Current measurement up to 10 A
NOTE
Do not make current measurements of 20 A DC and AC for longer than 30 seconds. Exceeding his time may cause damage to the meter and/or test leads.
To perform the current measurement:

• set the rotary switch at 10A ,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set the measurement of:
  direct current voltage DC (default setting),
  alternating current voltage AC,

• connect black test lead to COM terminal and red test lead to 10A terminal,

• remove power supply from the measured circuit and then connect the meter in series to the circuit at the point where the current is to be measured,

• contact the probes to the poles of the tested object;
  Direct Current (DC): the pin of black probe should contact negative pole of the circuit, while the pin of red probe should contact positive pole of the circuit,

• turn on the power supply of the circuit,

• read the measurement result on the display,

• after completing the measurements, remove test leads from the terminals of the meter.

6.10 Current measurement up to 500 mA
To perform the current measurement:

• set the rotary switch at mA ,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set the measurement of:
  direct current voltage DC (default setting),
  alternating current voltage AC,

• connect black test lead to COM terminal and red test lead to µA/mA terminal,

• remove power supply from the measured circuit and then connect the meter in series to the circuit at the point where the current is to be measured,
  Direct Current (DC): the pin of black probe should contact negative pole of the circuit, while the pin of red probe should contact positive pole,

• turn on the power supply of the circuit,

• read the measurement result on the display, after completing the measurements, remove test leads from the terminals of the meter.

6.11 Current measurement up to 5000 µA
To perform the current measurement:

• set the rotary switch at μA,

• select MENU and use arrows and F1 F2 F3 F4 buttons to set the measurement of:
  direct current voltage DC (default setting),
  alternating current voltage AC,

• connect black test lead to COM terminal and red test lead to µA/mA terminal,

• remove power supply from the measured circuit and then connect the meter in series to the circuit at the point where the current is to be measured,
  Direct Current (DC): the pin of black probe should contact negative pole of the circuit, while the pin of red probe should contact positive pole,

• turn on the power supply of the circuit,

• read the measurement result on the display,

• after completing the measurements, remove test leads from the terminals of the meter.

6.12 Measurement of current loop 4~20mA %
To perform the measurement:

• set the rotary switch at 4~20mA%,
• select MENU and use arrows and F1 F2 F3 F4 buttons to set 4-20 mA,
• connect black test lead to COM terminal and red test lead to µA/mA terminal,
• turn on the meter in series with the circuit under test;
• the meter will display loop current as % value with:

0 mA = -25%,
4 mA = 0%,
20 mA = 100%,
24 mA = 125%.

Special features

7.1 MENU panel
For each of the main measurement functions, described in sec. 6.1-6.12, there are sub-functions available. They may be selected by pressing F1 button in MENU. In addition to the functions described in section 6, the meter determines:

• peak values of measured signals
• Crest Factor
• constant and periodic component of voltage and current
• frequency and half-period
• relative values of the measured values

Select the desired mode using arrows and F1 F2 F3 F4 buttons.
7.1.1 Displaying AC and DC components
The meter measures the AC and DC component of the measured signal (voltage or current).
Readings of these values may be displayed separately or together, as shown below.From MENU the following modes are available:

• AC+DC – reading is the sum of a periodic and constant component,
• DC, AC – the main reading is constant component.

Note:
Measurement of peak values, frequency, duty cycle, relative values and frequency in this mode is not available.
7.1.2 Recording PEAK values
From MENU the following modes are available:

• PEAK – displays the peak value of the measured, if it lasts more than 1 ms.
• CF (Crest Factor) – crest factor signal according to the following formula:

7.1.3 Relative measurement – REL
This mode enables a measurement relative to a stored reference value.
The displayed main result is the difference between the reference value (read- out at the moment of activating REL mode) and the current read-out. Example: if the reference value is 20 A, and the current reading is 12.5 A, then the main result on the display will be -7.5 A. If the new reading is identical to the reference value, then the result will be zero.

• From MENU select REL mode,
• Current readings are presented as a deviation relative to the reference value
• Use F3 to switch between reference units:

unit of the selected measurement function
%.
7.1.4 Mode: Hz,%,ms
This mode displays the frequency of the pulse filling indicator.

• From MENU select mode: Hz,%,ms,
• Use F1 F2 buttons to select:

Hz,% displays the frequency and pulse filling indicator in %
ms displays frequency and pulse width in ms
Note:
This mode is only active for current measurement (except for 4~20mA% function) and voltage
7.2 HELP
Each measurement screen is provided with “Help” in English.

• Press F3 to select HELP.

• Use arrows or commands PREV/NEXT to scroll the help text to the desired location.

• Help contains a description of:
  functions MENU, SAVE, SETUP,
  OL controls, batteries, sound,
  RANGE, HOLD, MAX/MIN buttons, arrows,

• CLOSE – closes the help.

• When the help is active, the top bar of the display shows the current meter reading.

7.3 MAX/MIN mode
For each measurement function, this mode displays three values in the form of True RMS:

• Minimum recorded value of the measurement,
• Average of all recorded measurements,
• Maximum recorded value of the measurement.

Prerequisite: the duration of the record must exceed 100 ms.
If the measured signal drops below the current minimum value or exceeds maximum value, the readings will be updated to the value of this signal. The meter records also date, time and the period after which it recorded these values.

Using the function:

• Use the rotary switch to select the desired measuring function
• Press MAX/MIN button
• use F1 F2 F3 F4 buttons to select one of the options:
  Restart – resetting the readings and restarting the recording,
  STOP – stopping the recording and presentation of the most recent readings,
  SAVE – saving records to the meter’s memory. Active after selecting STOP. Detailed description in section 7.6.2.
  CLOSE – closing the function without saving results.

Note:
When the meter switches off automatically and then it is restarted with ESC button, data on thescreen will be lost.
7.4 HOLD function
This function is used to ‘freeze’ the measurement result on the display.
Using the function:

• to activate, press HOLD button,

• to save the result use F1 F2 F3 F4 buttons to select SAVE,

• to turn off, press HOLD button or select CLOSE.
  The activity of the function is signalled by message HOLD. Then, the upper bar of the display shows the current measured signal.
  An additional mode of the function is AutoHold. It monitors the input signal and updates the “frozen” read-out, when the meter detects a new stable value of the signal (such that variations for at least 1 s. do  notexceed the setpoint – sec. 7.7.3).
  In addition, the meter detects open measurement circuit. This allows user to plug the meter into a different circuit, without losing the current reading from  the screen. Using  he function:

• to activate, use F1 F2 F3 F4 buttons and select AUTOHOLD,

• to save the result use F1 F2 F3 F4 buttons to select SAVE,

• to turn off, select CLOSE or CANCEL.

Note:
AutoHold is disabled, if the meter is in Peak, MIN/MAX mode or when it records the waveforms.
Note:
When the meter switches off automatically and then it is restarted with ESC button, data on the screen will be lost.
7.5 Changing measurement RANGE
Some measurements require manual selection of the measurement range. For this purpose:

• hortly press RANGE, to enable manual range change
• shortly press RANGE, to change the range. Available ranges, depending on the measured value, are shown in sec. 14.1,
• press and hold RANGE for approx. 2 s, to return to automatic mode.

Note:
Manual range selection is not used for the function of measuring the current of 4~20 mA, 10 A, temperature, frequency, duty cycle, continuity, diode tests and for sub-functions: REL, PEAK and CF.
7.6 Memory of the meter
7.6.1 Recording the waveforms
For any measurement function, the variation of measured value in time may be recorded. For this purpose:

• use F1 F2 F3 F4 buttons to select SAVE,
• use arrows to select RECORD and confirm by F1 button,
• use arrows and F1 F2 F3 F4 buttons to set recording parameters:
  Set Duration in DD-HH-MM format
  Sample Interval in MM-SS format

Note:
These variables affect the recording length and the number of saved samples. Both variables may interact with each other; changing one may automatically change the other, in order to fit the data in the available memory of the meter.

• use START command to start recording,
• recording ends after pressing STOP or when the measurement time (duration) is reached.
• Functions of buttons:
  EDIT – editing parameter
  arrows ◄► selecting values to be edited
  arrows ▲▼ changing values
  OK confirming changes
  START starting the recording process
  STOP stopping the recording process

Graph preview:
TREND displays a waveform graph,
SUMMARY – return to the recording screen
arrows ▲▼ changing the scale of x-axis of the graph (the scale value is shown in the top right corner of the screen)
arrows ◄► reading values from the graph.
DELETE removes the selected measuring point from the chart
CLOSE closes the graphField Memory available specifies the amount of available
meter memory space. It is expressed in %. If the sampling time is 1 s, then the maximum number of samples is 9960. For other settings, the maximum value is 10 000 samples.
7.6.2 Saving the measurements
To save the measurement results:

• use F1 F2 F3 F4 buttons to select SAVE,
• use F1 button to select Save,
• use arrows and F1 F2 F3 F4 buttons to assign a label to the measurement. Functions of buttons:

SAVE – saving,
SHIFT uppercase letters – lowercase letters – numbers (Capitalize – Minuscule – Number)
SYMBOLS (on/off)
CLOSE exit without saving
7.6.3 Viewing results from the memory
To recall measurement results from the memory:

• use F1 F2 F3 F4 buttons to select SAVE,
• use arrows and F1 F2 F3 F4 buttons to select View measure or View record
• Functions of buttons:

PREV previous record
NEXT next record
DELETE delete the displayed record
CLOSE closing only for View record:
TREND displays a waveform graph
UPLOAD transmission of the graph via Bluetooth (sec. 7.7.5)
SUMMARY return to browsing the memory
arrows ▲▼ changing the scale of x-axis of the graph (the scale value is shown in the top right corner of the screen)
arrows ◄► reading values from the graph
Note:
The user cannot view the records if the meter memory is empty.

• Start Times – date and time of starting the recording
• Duration – recording duration
• Samples – number of samples
• Events – number of events

7.6.4 Deleting memory data
The memory of the meter is divided into measurements and saved records (waveforms).

• use F1 F2 F3 F4 buttons to select SAVE,

• use arrows and F1 F2 F3 F4 buttons to select Delete, then:
  to remove all measurements, select Delete all measurements,
  to remove all waveforms, select Delete all records.

• Functions of buttons:
  OK – confirms selection
  CANCEL – rejects selection

7.7 SETUP of the meter
To access the settings, press F4 to select SETUP. Available options:

• Reset – restoring the factory settings,
• Meter Info,
• Instrument,
• Calibration,
• Communicate – wireless communication,
• Display

7.7.1 Reset – restoring the factory settings,
The meter may be reset to factory settings. For this purpose:

• use F4 button to select SETUP,
• use F1 button to select RESET.
• Functions of F1 F2 F3 F4 buttons:

CALIBRATE restoring the factory calibration
OK confirms the selection, return to the measurement screen
CANCEL cancels the selection, return to the measurement screen
7.7.2 Meter Info
This function displays information about the interface version and firmware of the meter with address of the manufacturer:

• use F4 button to select SETUP,
• use arrows and F1 F2 F3 F4 buttons to select Meter Info.

7.7.3 Instrument
This function allows user to change the following settings:

• the threshold for detecting events for AutoHold function,

• the threshold for detecting events for recording measurements,

• font colour on the measurement screen,

• background colour of the measurement screen.
  To change the settings:

• use F4 button to select SETUP,

• use arrows and F1 F2 F3 F4 buttons to select Instrument,

• functions of buttons:

arrows ▲▼: – selecting parameter for editing
– changing value of the edited parameter (only in EDIT mode)
EDIT – editing,
OK – confirms selection,
CANCEL – rejects selection,
CLOSE – closes menu.
7.7.4 Calibration
Meter calibration shall be performed by the Manufacturer. For more information, please consult by phone or e-mail.
7.7.5 Wireless communication
The multimeter is equipped with a Bluetooth wireless data transfer mode for devices with installed
Sonel Multimeter Mobile software. In order to enable / disable the transmission:

• use  F4 button to select SETUP,
• use arrows and F1 F2 F3 F4 buttons to select Communicate,
• to turn off Bluetooth; when asked “Turn off Bluetooth?” select OK (CANCEL cancels the selection),
• to turn on Bluetooth; when asked “Turn on Bluetooth?” select OK (CANCEL cancels the selection),

The activity of this mode is indicated by icon  on the top bar of the display. The meter will be vis- ible in the Bluetooth manager of any receiver device as CMM-60.

Details of cooperation with the analytical application are provided in Sonel Multimeter Mobile manual.
7.7.6 Interface settings
From this menu user can set the date, time, idle time to initiate AutoOff, sounds of buttons, decimal point, date and time format. For this purpose:

• use F4 button to select SETUP,
• use arrows and F1 F2 F3 F4 buttons to select Display and:
  DISPLAY – editing parameters:
  – date (Set Date)
  – time (Set Time)
  – idle time for activating AutoOff function
  (Auto Power Off) (value of 00 deactivates the function) (Note: this option is inactive when the Bluetooth communication is enabled)
  – functions of buttons:
  o arrows ▲▼ selecting the parameter / changing parameter value
  o arrows ◄► selecting field to be edited
  o EDIT – editing parameter
  o OK – confirm selection
  o CANCEL cancel the selection
  o CLOSE close menu
  FORMAT – editing parameters:
  – sound of buttons (Beeper)
  – decimal point (Numeric Format)
  – Date Format
  – Time Format
  – functions of buttons:
  o EDIT
  o ON | OFF function status
  o 0.000 | 0,000 selection of decimal point
  o MM/DD/YY | DD/MM/YY date format
  o 24 HOUR | 12 HOUR time format
  o CANCEL cancel the selection
  o CLOSE close menu

7.8 Software
The instrument works with external software:

• Sonel Multimeter Mobile – app for mobile phones with Android system. It is designed for remote readout of measurement results and for controlling multimeters,
• Sonel CMM-60 Multimeter Software – PC software. It is designed for remote readout of measurement results.

The software can be downloaded from the manufacturer’s website.

Replacing the battery

CMM-60 is powered from a battery pack of 7.4 V 2400 mAh.”
Note:
While performing the measurements with the battery discharged, the user must be aware of dditional unspecified uncertainties or unstable operation of the device.
WARNING:
the test leads are left in the terminals during replacement of the battery, they may generate a sk of electric shock.
To replace the battery:

• remove test leads from the terminals of the meter.
• set the rotational function selector at OFF,
• deflect the leg and unscrew 4 screws fixing the compartment cover,
• remove the cover,
• remove the battery pack and insert a new one, observing the polarity,
• put on the cover and tighten the fixing screws.

WARNING:
To avoid electric shock, do not use the meter if the battery compartment cover is not in place or is not properly fastened.![Sonel CMM 60 Digital Multimeter

• battery](https://manuals.plus/wp-content/uploads/2023/11/Sonel-CMM-60 -Digital-Multimeter-battery.jpg)
  Note:
  If the meter does not work properly, check the fuses and the battery pack in order to ensure that they are in proper condition and properly installed in the device.

Charging rechargeable battery

• Set the rotary switch at OFF/CHG
• Connect the charging adapter to the meter
• Connect the charging adapter to the AC adapter
• Connect the power supply adapter to the power supply 100-240 V
• The display will show the charging indicator – a battery with changing content
• When the charging is completed, the meter will show the indicator of complete charging – full battery,

Fuse replacement

WARNING:
If the test leads are left in the terminals during replacement of the fuses, they may generate a risk of electric shock.

To replace the battery:

• remove test leads from the terminals,

• set the rotational function selector at OFF,

• remove the battery,

• for the 800 mA fuse:
  gently remove the old fuse and install a new one in its holder.

• for the 10 A fuse:
  deflect the leg and unscrew 4 screws fixing the rear compartment cover,
  gently remove the old fuse and install a new one in its holder.
  re-tighten the cover

• mount the battery pack.

• put on the cover and tighten the fixing screws.

CAUTION!
Always use ceramic fuses of the same type (800 mA/1000 V quick-acting fuse for range µA/mA SIBA 70-172-40], 10 A/1000 V quick-acting fuse for range 10 A [SIBA 50-199-06]).
WARNING:
To avoid electric shock, do not use the meter if the fuse compartment cover is not in place or is not properly fastened.

Maintenance and care

The meter has been designed for many years of reliable use, provided that the following recom-mendations are observed for its maintenance and care:

1. THE METER MUST BE DRY. Wipe the dampened mater.
2. THE METER MUST BE USED AND STORED IN NORMAL TEMPERATURES. Extreme temperatures may shorten the life of electronic components and distort or melt plastic parts.
3. THE METER MUST BE HANDLED CAREFULLY AND GENTLY. Dropping the meter may damage its electronic elements or the housing.
4. THE METER MUST BE KEPT CLEAN. From time to time wipe the housing with a damp cloth. DO NOT use chemicals, solvents or detergents.
5. USE ONLY NEW BATTERIES OF RECOMMENDED SIZE AND TYPE. Remove the discharged battery pack from the meter to avoid leakage and damage.
6. IF THE METER IS TO BE STORED FOR AN EXTENDED PERIOD, disconnect the battery pack.

Note:
The electronic system of the meter does not require maintenance.

Storage

During the storage of the device, the following recommendations must be observed:

• disconnect the test leads from the meter,
• make sure that the meter and accessories are dry,
• when the device is to be stored for longer time, remove the battery pack.

Dismantling and disposal

Worn-out electric and electronic equipment should be gathered selectively, i.e. it must not be placed with waste of another kind.
Worn-out electronic equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment.
Before the equipment is sent to a collection point, do not dismantle any elements.
Observe local regulations concerning disposal of packages, waste batteries and accumulators.

Specifications

14.1 Technical data
“m.v.” means a standard measured value.
DC voltage measurement

1 Use REL mode to compensate offsets

• Internal impedance >10 MΩ VDC
• Overload protection: 1000 V DC/AC RMS

True RMS (TRMS) voltage measurement

• Range	Resolution	Accuracy
  50.000 mV 1	0.001 mV	f = 50/60 Hz

  ± (0.3% m.v. + 25 digits)
  f < 1 kHz
  ± (0.5% m.v. + 25 digits)
  f < 5 kHz
  ± (3% m.v. + 25 digits)
  500.00 mV 1| 0.01 mV
  5.0000 V| 0.0001 V
  50.000 V| 0.001 V
  500.00 V| 0.01 V

  ---

1000.0 V

| ****

0.1 V

Frequency range 50…10 000 Hz

• All AC voltage ranges are specified from 5% to 100% of the range
• Internal impedance >10 MΩ VDC
• Overload protection: 1000 V DC/AC RMS

Measurement of AC+DC voltage

± (1% m.v. + 25 digits)
f < 5 kHz
± (3.5% m.v. + 25 digits)
500.00 mV| 0.01 mV
5.0000 V| 0.0001 V
50.000 V| 0.001 V
500.00 V| 0.01 V| unspecified
1000.0 V| 0.1 V

DC measurement

• Range	Resolution	Accuracy
  500.00 μA	0.01 μA	**** ± (0.1% m.v. + 20 digits)
  5000.0 μA	0.1 μA
  50.000 mA	0.001 mA
  500.00 mA	0.01 mA	± (0.15% m.v. + 20 digits)
  10.000 A	0.001 A	± (0.3% m.v. + 20 digits)

20 A for max. 30 sec. at reduced accuracy

AC measurement (TRMS)

± (0.6% m.v. + 25 digits)
f < 1 kHz
± (1.5% m.v. + 25 digits)
f < 10 kHz
± (3% m.v. + 25 digits)
5000.0 μA| 0.1 μA
50.000 mA| 0.001 mA
500.00 mA| 0.01 mA
10.000 A| 0.001 A

• 20 A for max. 30 sec. at reduced accuracy
• Frequency range 50 Hz…10 kHz
• All AC voltage ranges are specified from 5% to 100% of the range

Measurement of AC+DC

• Frequency range 0…1000 Hz
• 20 A for max. 30 sec. at reduced accuracy

Measurement of alternating voltage for frequency >5 kHz

• Measurement range 20.000 mV…50.000 V
• Frequency band 5…100 kHz
• All AC voltage ranges are specified from 10% to 100% of range

Note:
Accuracy was determined in the temperature range from 18 °C to 28 C and at relative humidity below 75%. For distorted current, the error is increased by ±(2% m.v. + 2% of full scale) for a crest factor <3.0.
Measurement of resistance

1When using REL mode to compensate offsets (mode recommended in case of problems with reset-ting)
Measurement of capacitance

1With a foil capacitor or better, using relative mode REL Δ for resetting the rest
Measurement of frequency – electronics

• Sensitivity:

the minimum value of effective voltage is 0.8 V at 20% to 80% of the duty cycle and <100 kHz
the minimum value of effective voltage is 5 V at 20% to 80% of the duty cycle and <100 kHz
Measurement of frequency – electricity

• Sensitivity: 1 V RMS

Duty cycle measurement (filling)

• Pulse width: 100 µs…100 ms
• Frequency: 5 Hz…150 kHz

Measurement of current loop 4-20mA%

• 0 mA = -25%
• 4 mA = 0%
• 20 mA = 100%
• 24 mA = 125%

Temperature Measurement

• The accuracy of the temperature probe is not taken into account

14.2 Operating data
a) measurement category according to EN 61010-1 ………………………. IV 600 V (III 1000 V)
b) degree of housing protection acc. to EN 60529: ……………………………………… IP67
c) contamination level ……………………………………………………………………………….. 2
d) power supply of the meter …………………………………………………. Li-Pol 7.2 V battery pack
e) measurement of AC signal ……………………………………………………………………… true RMS
f) AC voltage measuring range ………………………………………………… 50 Hz…100 kHz
g) diode test ……………………………………………………………………..I = 0.9 mA, U0 = 3.2 V DC
h) continuity test ………………………………………………………………..I < 0.35 mA, acoustic signal for R < 25 Ω
i) temperature sensor ……………………………………………………………. requires the adapter of the temperature probe
j) indication for exceeded range …………………………………………… OL symbol
k) crest factor …………………………………………………………….. ≤3 for the full range of 500 V
……………………………………………………………………..decreasing linearly to ≤1.5 at 1000 V
l) PEAK value ………………………………………………………… captures the peak values >1 ms
m) measurement frequency ……………………………… 20 measurements per second
n) input impedance ……………………………………………………………. ~6 MΩ (V AC/DC)
o) display ………………………………………………………………….. backlit LCD with a scale
p) number of results stored in the memory …………………………………………………… 2000 results
q) recorder memory
▪ capacity ………………………………………………………………………… up to 10 000 samples
1 ▪ sampling frequency …………………………………………………………………………… from 1 Hz
1 r) dimensions ………………………………………………….. 220 x 97 x 58 mm
s) meter weight …………………………………………………………………………………. 605 g
t) fuses
▪ range mA, µA………………………………………………………………… 0,8 A/1000 V ceramic quick-acting
▪ range 10 A………………………………………………………………………… 10 A/1000 V ceramic quick-acting
u) operating temperature ………………………………………………………. +5..+40°C
v) storage temperature ………………………………………………………………………. -20..+60°C
w) humidity …………………………………………………………………………… max 80% up to 31°C
………………………………………………………………. decreasing linearly to 50% at 40°C
x) storage humidity …………………………………………………………………………. <80%
y) maximum operating altitude …………………………………………………. 2000 m
z) max. fall of height …………………………………………………………………………………………….. 2 m
aa) inactivity time for triggering Auto-Off function …………………………………………… 5…60 minutes
bb) compliance with the requirements of the following standards ………………………………….. EN/IEC 61010-1
……………………………………………….. UL 61010-1:2004, CAN/CSA C22.2 No. 61010-1, UL 61010B-2-031
………………………………………………… IEC 61326-1, IEC 61326-2-2
cc) quality standard ………………….. ISO 9001 depending on the sampling time set

1 depending on the sampling time set

• AC True RMS
  RMS (Root-Mean-Square) – a method for calculating the amplitude of voltage and current. Multimeters of medium class are calibrated to read correctly only sine waveforms -measuring non-sine waveforms or distorted will provide an inaccurate result. True RMS meters accurately measure all three types of signals.

Note:
SONEL S.A. hereby declares that the radio device type CMM-60 complies with Directive 2014/53/EU.
The full text of the EU Declaration of Conformity is available at the following website address: https://sonel.pl/en/download/declaration-of- conformity/

14.3 Bluetooth specification
Version ……………………………………………………………………………….. v4.0+EDR
Frequency range ………………………………………………………………………………. 2400 MHz…2483.5 MHz (ISM band)
Protection band ……………………………………………………………………………………… 2 MHz < f < 3.5 MHz
Modulation method ……………………………………………………………………………… GFSK, 1 Mbps, 0,5 Gaussian
Signal reception band ……………………………………………………………………………………. -82…-20 dBm
Minimum transmission power ……………………………………………………………………-18…+4 dBm

14.4 Specifications of the internal battery
Module dimensions ……………………………………………………………………………. 20.0 x 3.2 mm
Weight ………………………………………………………………………………………….. 3 g
Marking …………………………………………………………………………………………. ANSI / NEDA-5004LC, IEC-CR2032
Rated voltage ……………………………………………………………………………………………….. 3.0 V
Capacity ……………………………………………………………………………………………..240 mAh
Storage time ……………………………………………………………………………………………… 5 years
Electrolyte type ……………………………………………………………………………………… Lithium-Polymer
Standard ………………………………………………………………………………………………… GB/T 1827-2000

14.5 Specifications of the rechargeable battery pack
Rated voltage ………………………………………………………………………………………………….. 7.4 V
Charging voltage …………………………………………………………………………………………………. 8.4 V
Capacity ………………………………………………………………………………………………………………….2400 mAh
Maximum number of charging cycles ……………………………………………………………………………… 500

15 Standard accessories
The standard set of equipment supplied by the manufacturer includes:

• CMM-60 meter,
• test leads set for CMM (CAT IV, M) – WAPRZCMM2,
• caps for measuring terminals (2 pcs),
• temperature probe (type K, metal) – WASONTEMK2,
• type K temperature probe adapter – WAADATEMK,
• 10 V 1000 mA battery charger – WAZASZ21,
• charging adapter – WAADALAD1,
• CMM-RR radio receiver – WAADACMMRR,
• Li-Pol battery 7.4 V, 2.4 Ah – WAAKU25,
• user manual,
• factory calibration certificate.

The current list of accessories can be found on the manufacturer’s website.

Service

The provider of guarantee and post-guarantee services is:
SONEL S.A.
Wokulskiego 11
58-100 Świdnica, Poland
tel. +48 74 884 10 53 (Customer Service)
e-mail: [email protected]
web page: www.sonel.com

Note:
Service repairs must be performed only by the manufacturer.

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