CMM-30 - Multimeter Sonel - Free user manual and instructions

Product Type	Industrial True RMS Multimeter
Brand	Sonel
Model	CMM-30
Dimensions (H x W x D)	170 x 75 x 48 mm
Weight (with batteries)	418 g
Weight (without batteries)	371 g
Power Supply	4 x AAA 1.5V alkaline or 4 x AAA NiMH 1.2V rechargeable
Display	4-digit LCD, 6000 counts, with backlight
Measurement Functions	DC/AC voltage, DC/AC current, resistance, capacitance, frequency, duty cycle, temperature, diode test, continuity, Low Z
True RMS	Yes (AC voltage and current)
Safety Rating	CAT IV 600V / CAT III 1000V, double insulation Class II
Ingress Protection	IP67
Connectivity	Bluetooth v4.0+EDR for data transfer to Android devices
Special Features	Auto/Manual ranging, REL, MAX/MIN/AVG, PEAK, HOLD, AC+DC, flashlight, auto-off, backlight
Measurement Rate	3 measurements per second
Fuse Protection	800mA/1000V (μA/mA range), 10A/1000V (10A range)
Test Leads	Included, with removable tip guards
Operating Temperature	0°C to +40°C
Storage Temperature	-20°C to +60°C
Standards Compliance	EN 61010-1, EN 61010-031, EN 61010-2-033, EN 61326-1, EN 61326-2-2, ISO 9001
Maintenance	Keep dry, clean with damp cloth, remove batteries for storage >60 days
Repairability	Service only by authorized Sonel service point
Manufacturer	SONEL S.A., Poland

Frequently Asked Questions - CMM-30 Sonel

How do I measure AC voltage with the CMM-30?

Set the rotary switch to V Hz%. Connect the black test lead to COM and red to VΩHz%→●)) CAP °C °F. Touch the probes to the circuit and read the display.

How do I replace the battery?

Turn the meter off and set the switch to OFF. Remove the test leads. Unscrew the 4 screws on the back cover. Replace the 4 AAA batteries, observing polarity. Replace the cover and tighten screws.

How do I enable Bluetooth on the CMM-30?

Press and hold the MODE button until the Bluetooth symbol appears on the display. The meter will show as CMM-30 in your device's Bluetooth manager.

What does OL mean on the display?

OL stands for Over Load, indicating that the measured value exceeds the selected measurement range. Switch to a higher range manually or use autoranging.

How do I test circuit continuity?

Set the rotary switch to →●)). Press MODE until the continuity symbol (●●●) appears. Connect test leads to COM and VΩHz%→●)) CAP °C °F. Touch the probes to the circuit; a beep sounds if resistance is below approx. 30 Ω.

Can I measure temperature with the CMM-30?

Yes. Set the rotary switch to °C °F. Use the temperature probe adapter (optional). Connect the probe to COM (black) and VΩHz%→●)) CAP °C °F (red). Touch the probe to the object and read the temperature.

What is the Low Z function for?

The Low Z function reduces the input impedance to about 3 kΩ to eliminate ghost voltages caused by capacitive coupling, giving more accurate voltage readings in circuits with parasitic capacitance.

How do I use the PEAK function?

Press and hold the PEAK button for about 3 seconds to capture 1 ms peak voltage or current surges. This function is available only in AC voltage and current modes. Auto-off is disabled while PEAK is active.

How do I disable the Auto-Off function?

Turn the meter off. Press and hold the MODE button while turning the switch to the desired function. Release MODE when the meter is ready. The auto-off symbol will not appear.

What is the AC+DC function?

The AC+DC function displays the sum of the AC and DC components of a voltage signal. Press and hold the REL AC+DC button for 2 seconds to activate it. Available only in voltage modes.

USER MANUAL CMM-30 Sonel

Line drawing of a vintage analog device with control panel and circular dial (no text or symbols)

INSTRUKCJA OBSŁUGI 1

USER MANUAL 35

MANUAL DE USO 69

CMM-30 TRMS 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 CMM-30 include:

• Bluetooth wireless communication used for transmitting the measurement results to mobile devices with Android OS,
  • automatic and manual range setting,
• REL function for relative measurements,
• MAX/MIN/AVG function for displaying maximum, minimum and average values,
• PEAK function for displaying the peak value,
• AC+DC function for displaying the result as a sum of AC and DC components,
• HOLD function used to maintain the read-pot on the meter screen,
• automatic and manual 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).

CONTENTS

1 Introduction.... 39

2 Safety 40

2.1 General rules....40
2.2 Safety symbols....42

3 Preparing the meter for operation.... 42

4 Functional Description.... 44

4.1 Measuring terminals and functions ....44
4.2 Display 47
4.3 Leads....48

5 Measurements.... 49

5.1 Measurement of voltage....49
5.2 Frequency measurement....50
5.3 Measurement % of duty cycle (pulse filling indicator) .....50
5.4 Measurement of resistance ....50
5.5 Circuit continuity test 51
5.6 Diode test....51
5.7 Measurement of capacitance....52
5.8 Current measurement....53

5.8.1 The range of 10 A....53
5.8.2 Range of mA, μA....53

5.9 Temperature Measurement....54
5.10 Low Z measurement (elimination of interference and induced voltages) 55

6 Special Features 55

6.1 RANGE button 55
6.2 REL AC+DC button 55

6.2.1 REL function 55
6.2.2 AC+DC function 56

6.3 MAX/MIN/AVG button....56

6.4 PEAK button 57

6.4.1 Flashlight 57
6.4.2 PEAK function....57

6.5 MODE button 58

6.5.1 Changing the measurement mode. 58
6.5.2 Wireless communication 58

6.6 Button HOLD 58

6.6.1 HOLD function 58
6.6.2 Display backlight 58
6.7 Auto-Off....58

7 Replacing the battery and fuses.... 60
8 Maintenance and care 62
9 Storage 63
10 Dismantling and Disposal 63
11 Technical data.... 64

11.1 Basic data....64
11.2 Operating data 67
11.3 Bluetooth specification....68

12 Manufacturer.... 68

1 Introduction

Thank you for purchasing Sonel multimeter. CMM-30 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 three types of warnings. They are presented 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 followed. Texts ⚠! CAUTION! begin a description of a situation, which may result in device damage, when instructions are not followed. Indication of possible problems is preceded by symbol .

WARNING

• CMM-30 meter is designed to measure the current and AC/DC voltage, frequency, resistance, capacitance, as well as to test the circuit continuity and diodes. 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-30 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.
• 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 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, 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 symbol OL appears on the screen, it indicates 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 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.
• 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.

The limit values of the input signal
Function	The maximum input value
V DC, V AC	1000 V DC/AC RMS
Low Z	600 V DC/AC RMS
μA/mA AC, μA/mA DC	800 mA DC/AC RMS
A AC, A DC	10 A DC/AC RMS
Resistance, continuity, diode test, capacitance, frequency, duty cycle	600 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.

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,
• 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,
• when the meter is not in use, set the function switch in OFF position.

The device has the AUTO-OFF function triggered after approx. 15 minutes of user inactivity. To turn the meter on again, set the function 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 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 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/or fuse compartment is removed.

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.

4 Functional Description

4.1 Measuring terminals and functions

1 LCD display

2 REL / AC+DC button

• Displaying the measurement result related to the reference value
• Displaying the sum of the components: periodic and constant

3 RANGE button

Setting the measurement range:

• automatic (press and hold for approx. 2 s)
- manual (press shortly)

4 MODE button

• Changing the measurement mode in functions: DC / AC / Hz / % / V / resistance / continuity / diode test / capacitance / temperature measurement (press shortly)
• Switching wireless communication mode Bluetooth (press and hold)

5 Turn the rotary switch

Function selection:

• ≈ μA – measurement of direct and alternating current, up to 600.0 μA
• ≡ mA – measurement of direct and alternating current, up to 600,0 mA
• ≈ 10A – measurement of direct and alternating current, up to 10 A
• OFF – the meter is switched off
• V ≈ Hz% – measurement of AC and DC voltage, frequency, and duty cycle
• – measurement of resistance, diode test, continuity test
  • CAP – capacitance measurement
• °C °F - temperature measurement
• Low Z – measurement of voltage, which may be present on the object due to the parasitic capacitance feedback

6 Measuring terminal 10A

Measuring input for AC and DC measurements, up to 10A.

7 Measuring terminal A / mA

Measuring input for AC and DC measurements, protection up to 800 mA.

8 COM measuring terminal

Measuring input, common for all measuring functions.

9 Measurement terminal V Hz% -CAP) ^ C ^ F

Measuring input for measurements other than current measurement.

10 HOLD button

• Freezing the measurement results on the display (press shortly)
• Activating the backlight of the display (press and hold)

11 PEAK button

• Flashlight mode (press shortly)
• Displays peak value of the measured signal (press and hold)

12 MAX/MIN/AVG button

Displaying the highest / lowest / average value from those currently recorded.

⇒ To enable the function - press shortly
⇒ Selection of maximum, minimum or average value - press shortly
⇒ To disable the function - press and hold for approx. 1 sec.

13 Light sensor

Adjusts screen brightness, depending on the light intensity in working environment

14 Flashlight

4.2 Display

V	Voltage measurement
A	Current measurement
~	Alternating signal
==	Constant signal
-	Negative read-out value
Ω	Measurement of resistance
●	Continuity test
▶	Diode test
F	Measurement of capacitance
Hz	Measurement of frequency
%	Duty cycle measurement
°F / °C	Temperature measurement in Fahrenheit / Celsius degrees
n / μ / m / k / M	The prefix of multiple measurement unit
OL	Exceeded measurement range
	Auto-off mode
	Low battery
AUTO	Automatic range setting
HOLD	HOLD function activated
LOZ	Voltage measurement of capacitive feedback
MAX / MIN / AV	Maximum / Minimum / Average value
Peak	Peak value
REL	Reading relative to the reference value
AC+DC	Voltage as the sum of AC and DC signal
	Bluetooth wireless transmission

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.

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.

5.1 Measurement of voltage

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 probe touch the metal contacts inside the socket.

CAUTION!

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.

To perform AC voltage measurement:

• set the rotary switch at V Hz%,
• in case of measuring voltage in mV shortly press MODE button, until symbol mV is shown on the display,
• connect black test lead to COM terminal, and red test lead to V Hz% -CAP)°C °F terminal,
• contact the tips of test probes to the points of measurement,
• read the measurement result on the display.

5.2 Frequency measurement

To perform frequency measurement:

• set the rotary switch at V Hz%,
• press MODE button, until symbol Hz is shown on the display,
• connect black test lead to COM terminal, and red test lead to VΩHz% → CAP °C °F terminal,
• contact the tips of test probes to the points of measurement,
• read the measurement result on the display.

5.3 Measurement % of duty cycle (pulse filling indicator)

To perform the measurement:

• set the rotary switch at V Hz%,
• press MODE button, until symbol % is shown on the display,
• connect black test lead to COM terminal, and red test lead to VΩHz% →●)) CAP °C °F terminal,
• contact the tips of test probes to the points of measurement,
• read the measurement result on the display.

5.4 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 measurement of resistance:

• set the rotary switch at ,
• connect black test lead to COM terminal, and red test lead to VΩHz% →●)) CAP °C °F 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.

5.5 Circuit continuity test

WARNING

Do not perform measurements on the circuit under the voltage. Before the measurement disconnect the power and discharge capacitors.

To perform the continuity test:

• set the rotary switch at
• connect black test lead to COM terminal, and red test lead to VΩHz% → CAP °C °F terminal,
• press MODE button, to display • on the screen,
• contact the tips of test probes to the points of measurement,
• read the measurement result on the display; the beep will be activated when resistance values are below approx. 30 Ω.

5.6 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 VΩHz% → CAP °C °F terminal,
• press MODE button, to display and V on the screen,
• 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 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.

5.7 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 CAP,
• connect black test lead to COM terminal, and red test lead to VΩHz% →●)) CAP °C °F terminal,
• press MODE button, to display nF on the screen,
• contact the probe tips to the tested capacitor,
• read the measurement result on the display.

5.8 Current measurement

WARNING

To avoid the electric shock, the device must not be connected to circuits in which the measuring voltage exceeds 1000 V.

CAUTION!

Do not make current measurements of 10 A for longer than 30 seconds. Exceeding this time may cause damage to the meter and/or test leads. When the current of 10 A, the interval between successive tests should be approx. 15 minutes.

5.8.1 The range of 10 A

To perform the current measurement:

• set the rotary switch at TOA,
• press MODE button to display the following symbols on the display:

⇒ , if you are measuring Alternating Current,
⇒ , if you are measuring Direct Current,

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

- disconnect the power supply from the tested circuit and then connect the meter in series (for DC circuits: connect the red probe to the positive pole),

- turn on the power supply of the circuit,

- read the measurement result on the display.

5.8.2 Range of mA, μA

To perform the current measurement:

- set the rotary switch at or (it is recommended to start the measurement from the position of the rotary switch in the higher range)

- press MODE ✪ button to display the following values on the display:

⇒ , if you are measuring Alternating Current,

⇒ , if you are measuring Direct Current,

• connect black test lead to COM terminal, and red test lead to VΩHz% → CAP °C °F terminal,
• disconnect the power supply from the tested circuit and then connect the meter in series (for DC circuits: connect the red probe to the positive pole),
• turn on the power supply of the circuit,
• read the measurement result on the display.

5.9 Temperature Measurement

To perform the measurement:

• set the rotary switch at ^ C ^ ,
  • to change the unit, press MODE
• place the adapter of the temperature probe in COM terminal (black leg) and

VΩHz% → CAP°C°F

(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.

5.10 Low Z measurement (elimination of interference and induced voltages)

Measurement function in 'Low Z' mode eliminates the influence or interference voltages or induced voltages, making the measurement more accurate and reliable. These voltages may occur due to capacitive feedback between the live conductors and the unused conductors located in the vicinity.

To perform the measurement:

• set the rotary switch at Low Z,
• press MODE button to display the following symbol:

⇒ , if an alternating voltage is to be measured,
⇒ , if a constant voltage is to be measured,

- connect black test lead to COM terminal, and red test lead to

VΩHz% ★● CAP °C °F,

• contact probe blades to measurement points (for DC circuits:
  connect red probe to the positive pole),
• read the measurement result on the display.

6 Special Features

6.1 RANGE button

The button is used to set the measuring range.

⇒ To enable the automatic function, press and hold RANGE button longer than 1 second.
⇒ To manually toggle through the measuring ranges, press RANGE button

This function is not available for measuring the current of 10 A, frequency, duty cycle, diode test, continuity, capacitance and temperature.

6.2 REL AC+DC button

6.2.1 REL function

This mode enables a measurement relative to a reference value.

• To enable the mode, press REL AC+DC. Then, the displayed readout value is taken as the reference value, and the readout will be reset.
• From this moment, the readings will be presented as the ratio of the measured value to the reference value.
• To enable the mode, press REL AC+DC.

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.

• When the function is activated, the automatic adjustment of the measuring range is not available.
• If the reading is outside the measurement range, symbol OL is displayed In this situation, turn off the function and manually switch to a higher range (use RANGE button).
• This function is not available for measuring frequency, duty cycle, diode test, continuity, temperature and Low Z.

6.2.2 AC+DC function

The reading is the sum of periodic and constant components.

• To enable the mode press and hold REL AC+DC button for approx. 2 seconds.
• To enable the mode, press and hold REL AC+DC.

This function is available only when measuring AC or DC voltage.

6.3 MAX/MIN/AVG button

• To enable the mode, press MAX/MIN/AVG.
• Press MAX/MIN/AVG button to switch between the extreme values of the on-going measurement.
  Symbol MAX symbol - the meter displays the highest value out of existing measurement readings.

MIN symbol - the meter displays the lowest value out of existing measurement readings.
AVG symbol - the meter displays the average value of existing measurement readings.

- To disable the function, press and hold MAX/MIN/AVG button for approx. 1 second.

• When the function is activated, the automatic adjustment of the measuring range is not available.
• If the reading is outside the measurement range, symbol OL is displayed In this situation, turn off the function and manually switch to a higher range (use RANGE button).
• This function is not available for measuring frequency, duty cycle and temperature.

6.4 PEAK button

6.4.1 Flashlight

Shortly press PEAK, to turn on or off the flashlight mode.

6.4.2 PEAK function

PEAK function is intended to measure peak values and it is different from MAX function, which measures maximum values, by the duration of recorded event. In case of PEAK function, it is 1 s. This allows user to record very short alternating voltage surges.

The meter will update the display each time a lower negative, or higher positive peak occurs. Auto Power Off feature will be disabled automatically in this mode.

• To enable the mode press and hold PEAK button for approx. 3 seconds.
• To disable the mode, press and hold PEAK button.

• This function is available only when measuring AC voltage and current.
• While PEAK is active, autoranging is disabled, therefore it is advised to start the function after connecting test leads

to the measurement point. Running PEAK before that may cause overrange symbols to appear.

6.5 MODE button

6.5.1 Changing the measurement mode.

Press shortly MODE 🏻 button to switch between the available measurement modes.

6.5.2 Wireless communication

The multimeter is equipped with a wireless data transfer mode for devices with installed Sonel Multimeter Mobile software. To enable the mode, long press MODE button. The meter will be visible in the Bluetooth manager of any receiver device as CMM-30.

Details of cooperation with the mobile application are provided in Sonel Multimeter Mobile manual.

6.6 Button HOLD

6.6.1 HOLD function

This function is used to 'freeze' the measurement result on the display. To do this, shortly press HOLD button. When the function is enabled, the display shows symbol HOLD.

To return to the normal operation mode of the device, press HOLD 🎨 button again.

6.6.2 Display backlight

Pressing and holding HOLD button for 2 seconds will turn ON/OFF the display backlight function.

6.7 Auto-Off

The meter automatically shuts off after 15 minutes of user inactivity. Symbol in the upper left corner of the display indicates activated function.

Auto-off function may be temporarily disabled. For this purpose:

• set the rotary switch at OFF position,
• press and hold MODE button,
• set the rotary switch at the desired measuring function,
• wait until the meter reaches the measurement readiness,
• release MODE button.

Each pass of the rotary switch through "OFF" position with non-pressed MODE button, will activate again the Auto-Off function.

7 Replacing the battery and fuses

WARNING

• If the test leads are left in the meter's terminals during replacement of the fuses, they may generate a risk of electric shock.
• To avoid electric shock, do not use the meter if the battery compartment cover is not in place or is not properly fastened.

CMM-30 is powered by four LR03 AAA 1.5 V batteries or four NiMH LR03 AAA 1.2 V rechargeable batteries. It is recommended to use alkaline batteries.

The device is protected by the following fuses:

• 800 mA/1000 V fast-acting for the range of μA/mA (SIBA 70-172-40),
• 10 A/1000 V fast-acting for the range of 10 A (SIBA 50-199-06).

To replace batteries or fuses:

• remove test leads from the terminals of the meter.
• set the rotational function selector at OFF,
• unscrew 4 screws fixing the compartment cover,
• remove the cover and:

remove the (rechargeable) batteries and insert new, observing the polarity:

⇒ replace the required fuse,

- put on the cover and tighten the fixing screws.

CAUTION!

Always use only fuses with parameters specified in this manual.

- While performing the measurements with the battery symbol displayed, the user must be aware of additional measurement uncertainties or unstable operation of the device.

- If the meter does not work properly, check the fuses and batteries in order to ensure that they are in proper condition and properly installed in the device.

8 Maintenance and care

The digital multimeter has been designed for many years of reliable use, provided that the following recommendations are observed for its maintenance and care:

1. THE METER MUST BE DRY. Wipe the dampened meter.
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 old or discharged batteries from the meter to avoid leakage and damage.
6. IF THE METER IS TO BE STORED FOR LONGER THAN 60 DAYS, remove the batteries and keep them separately.

The electronic system of the meter does not require maintenance.

9 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.

10 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.

11 Technical data

11.1 Basic data

⇒ uncertainty values are determined for temp. range 18...28°C and humidity <75%
⇒ "m.v." means a standard measured value.

True RMS measurement for AC current

Range	Resolution	Accuracy
600.0 μA	0.1 μA	± (1.0% m.v. + 3 digits)
6000 μA	1 μA
60.00 mA	0.01 mA
600.0 mA	0.1 mA
10.00 A	0.01 A	± (2.0% m.v. + 8 digits)

• All AC current ranges are specified from 5% to 100% of range
  • Frequency range: 45 Hz...400 Hz

DC current measurement

Range	Resolution	Accuracy
600.0 μA	0.1 μA	± (1.0% m.v. + 3 digits)
6000 μA	1 μA
60.00 mA	0.01 mA
600.0 mA	0.1 mA
10.00 A	0.01 A	± (1.5% m.v. + 3 digits)

True RMS voltage measurement

Range	Resolution	Accuracy
6.000 V	0.001 V	± (1.0% m.v. + 5 digits)
60.00 V	0.01 V
600.0 V	0.1 V
1000 V	1 V	± (1.2% m.v. + 5 digits)

• All AC voltage ranges are specified from 5% to 100% of range
• Input Impedance: 10 MΩ
  • Frequency range: 45 Hz...1000 Hz

DC voltage measurement

Range	Resolution	Accuracy
600,0 mV	0.1 mV	± (0.5% m.v. + 8 digits)
6,000 V	0.001 V	± (0.8% m.v. + 5 digits)
60,00 V	0.01 V
600,0 V	0.1 V
1000 V	1 V	± (1.0% m.v. + 3 digits)

- Input impedance: 10 MΩ

AC+DC voltage measurement

Range	Resolution	Accuracy
6.000 V	0.001 V	± (1.5% m.v. + 20 digits)
60.00 V	0.01 V
600.0 V	0.1 V
1000 V	1 V	± (1.5% m.v. + 5 digits)

- Input impedance: 10 MΩ

• Frequency range: 45 Hz...400 Hz

Low Z measurement

Range	Resolution	Accuracy
6.000 V	0.001 V	± (3.0% w.m. + 30 digits)
60.00 V	0.01 V
600.0 V	0.1 V
1000 V	1 V	± (3.0% w.m. + 5 digits)

- All AC voltage ranges are specified from 5% to 100% of range

- Input impedance: 3 kΩ

• Frequency range: 45 Hz...400 Hz

Resistance measurement

Range	Resolution	Accuracy
600,0 Ω	0.1 Ω	± (1.5% m.v. + 5 digits)
6.000 kΩ	0.001 kΩ
60.00 kΩ	0.01 kΩ
600.0 kΩ	0.1 kΩ
6.000 MΩ	0.001 MΩ
60.00 MΩ	0.01 MΩ	± (2.0% m.v. + 10 digits)

Capacitance measurement

Range	Resolution	Accuracy
60.00 nF	0.01 nF	± (5.0% m.v. + 35 digits)
600.0 nF	0.1 nF	± (3.0% m.v. + 5 digits)
6.000 μF	0.001 μF
60.00 μF	0.01 μF
600.0 μF	0.1 μF
6000 μF	1 μF	± (5.0% m.v. + 5 digits)

Frequency measurement

Range	Resolution	Accuracy
9.999 Hz	0.001 Hz	± (1.0% m.v. + 5 digits)
99.99 Hz	0.01 Hz
999.9 Hz	0.1 Hz
9.999 kHz	0.001 kHz

• Sensitivity: >8 V RMS

Duty cycle measurement

Range	Resolution	Accuracy
20.0... 80.0%	0.1%	± (1.2% m.v. + 2 digits)

• Sensitivity: >8 V RMS
• Pulse width: 100 μs...100 ms
  • Frequency: 5 Hz...10 kHz

Temperature measurement

Range	Resolution	Accuracy
-20...+760°C	0.1 or 1°C	± (1.0% m.v. + 5°C)
-4...+1400°F	0.1 or 1°F	± (1.0% m.v. + 9°F)

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

11.2 Operating data

a) measurement category according to IEC 61010-1.... CAT IV 600 V (III 1000 V)
b) type of insulation ....double, Class II
c) degree of housing protection acc. to EN 60529 IP67
d) pollution degree 2
e) power supply of the meter....4 x AAA 1.5 V battery ....4 x AAA NiMH 1.2 V rechargeable battery
f) diode test I = 1 mA, U0 < 3 V DC
g) continuity test ....acoustic signal for R < 30 Ω
h) indication for range exceeding ....OL symbol
i) low battery indication ....symbol + !
j) measurement rate ....3 measurements per second
k) response time for MIN/MAX function 100 ms
I) response time for PEAK function 1 ms
m) input impedance .... approx. 10 MΩ (V AC/DC)
n) input impedance for Low Z...... approx. 3 kΩ
o) AC read-out ....True RMS (A AC and V AC)
p) AC bandwidth 45..1000 Hz
q) LCD display .... 4 digit with backlit ....6000 counts with function indicators
r) dimensions....170 x 75 x 48 mm
s) meter weight 418 g
t) meter weight (without batteries) 371 g
u) fuses....mA and μA range: 0.8 A / 1000 V fast .....A range: 10 A / 1000 V fast
v) operating temperature 0..+40°C
w) operating humidity 75%
x) storage temperature ....-20..+60°C
y) storage humidity ....../< 80%
z) maximum operating altitude 2000 m
aa) Auto-Off function ....approx. 15 min
bb) compliance with the requirements of the following standards....EN 61010-1 ....EN 61010-031, EN 61010-2-033 ....EN 61326-1, EN 61326-2-2
cc) quality standard ....ISO 9001

SONEL S.A. hereby declares that the radio device type CMM-30 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/

11.3 Bluetooth specification

Version v4.0+EDR

Frequency range....2400 MHz...2483.5 MHz (ISM band)

Guard band 2 MHz < f < 3.5 MHz

Modulation method ...... GFSK, 1 Mbps, 0.5 gauss

Receiving signal range ......-82...-20 dBm

Transmission power minimum....-18...+4 dBm

12 Manufacturer

The provider of guarantee and post-guarantee services is:

SONEL S.A.

Wokulskiego 11

58-100 Świdnica

Poland

tel. [phone] (Customer Service)

e-mail: [e-mail]

web page: www.sonel.com

CAUTION!

Service repairs must be performed only by the manufacturer.

MANUAL DE USO

MULTÍMETRO INDUSTRIAL

CMM-30

CE