Trotec BE52 User manual

TRT-BA-BE52-TC220328TTRT03-001-EN
BE52
EN
OPERATING MANUAL
DIGITAL TRUE RMS
MULTIMETER

2 EN
digital true RMS multimeter BE52
Table of contents
Notes regarding the instructions .........................................2
Safety .....................................................................................2
Information about the device................................................5
Transport and storage...........................................................8
Operation ...............................................................................8
MultiMeasure Mobile app....................................................13
Maintenance and repair ......................................................17
Errors and faults..................................................................18
Disposal ...............................................................................18
Declaration of conformity ...................................................18
Notes regarding the instructions
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
instructions must be observed.
You can download the current version of the instructions and
the EUdeclaration of conformity via the following link:
BE52
https://hub.trotec.com/?id=46448
Safety
Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use.
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
• The device is supplied with warning signs. Prior to initial
start-up, make sure to paste the corresponding warning
signs in your local language, if available, over the ones
present at the rear of the device as described in the
Operation chapter. Otherwise, choose labels in a language
you know.
• Do not use the device in potentially explosive rooms or
areas and do not install it there.
• Do not use the device in aggressive atmosphere.
• Protect the device from permanent direct sunlight.
• Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
• Do not open the device.

EN 3
digital true RMS multimeter BE52
• Never charge batteries that cannot be recharged.
• Different types of batteries and new and used batteries
must not be used together.
• Insert the batteries into the battery compartment according
to the correct polarity.
• Remove discharged batteries from the device. Batteries
contain materials hazardous to the environment. Dispose
of the batteries according to the national regulations.
• Remove the batteries from the device if you will not be
using the device for a longer period of time.
• Never short-circuit the supply terminal in the battery
compartment!
• Do not swallow batteries! If a battery is swallowed, it can
cause severe internal burns within2hours! These burns
can lead to death!
• If you think batteries might have been swallowed or
otherwise entered the body, seek medical attention
immediately!
• Keep new and used batteries and an open battery
compartment away from children.
• Disconnect the measuring cables from the device before
replacing the batteries.
• Do not exceed the measuring range of a function specified
in the technical data.
• Always disconnect the measuring tips from the circuit
before changing the measuring mode.
• Proceed with the utmost care when measuring voltages
above 25VACrms or 35VDC. There is a risk of an electric
shock at these voltage levels.
• Ensure that the measuring area has zero potential and the
capacitors are discharged before you carry out diode,
resistance or continuity tests. Disconnect the measuring
lines from the measuring area before switching over the
device to diode, resistance or continuity tests if you have
previously carried out measurements on live components
Intended use
Only use the device for measurements within the measuring
ranges and overvoltage categories specified in the technical
data.
Intended use comprises:
• measurements of AC and DCvoltages
• measurements of direct and alternating currents
• capacitance measurements
• frequency/ duty cycle measurements
• resistance measurements
• testing diodes
• acoustic continuity tests
• Temperature measurements with external type K sensor
To use the device for its intended use, only use accessories and
spare parts which have been approved by Trotec.
Foreseeable misuse
Do not use the device in potentially explosive atmospheres,
when wet or very humid.
Unauthorized modifications of the device are forbidden.
Personnel qualifications
People who use this device must:
• master the 5 safety rules of electrical engineering
– 1.De-energise
– 2.Secure against restart
– 3.Verify de-energised state (bipolar)
– 4.Earth and short-circuit
– 5.Cover neighbouring live parts
• take measures to protect themselves from direct contact
with live parts.
• have read and understood the instructions, especially the
Safety chapter.

4 EN
digital true RMS multimeter BE52
Safety signs and labels on the device
Note
Do not remove any safety signs, stickers or labels from
the device. Keep all safety signs, stickers and labels in
legible condition.
The following safety signs and labels are attached to the device:
Safety symbol Meaning
This sign warns you of hazards when using
electric power. Exercise caution and observe
the safety instructions.
The device is provided with double insulation
against electric shock.
This sign indicates that the operating manual
must be observed.
Residual risks
Warning of electrical voltage
Electric shock due to insufficient insulation! Check the
device and the measuring cables for damages and
proper function before each use.
If you detect damages, do not use the device any
longer.
Do not use the device when either the device or your
hands are damp or wet!
Do not use the device when the battery compartment
or the housing is open.
Warning of electrical voltage
Electric shock due to contact with live parts! When
using the measuring tips, make sure not to reach
behind the protection against contact.
Warning of electrical voltage
There is a risk of a short-circuit due to liquids
penetrating the housing!
Do not immerse the device and the accessories in
water. Make sure that no water or other liquids can
enter the housing.
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Caution
When handling the device there is a risk of injury due
to the exposed measuring tips.
Always put on the protective cap when not in use.
Caution
Keep a sufficient distance from heat sources.
Note
To avoid damages to the device, make sure that the
correct measuring range is selected before carrying out
a measurement.
If you are unsure, select the largest measuring range.
Remove the measuring cables from the measuring
point before changing the measuring range.
Note
To prevent damages to the device, do not expose it to
extreme temperatures, extreme humidity or moisture.
Note
Do not use abrasive cleaners or solvents to clean the
device.
Note
Before commissioning, check the function of the
device at a known voltage source, e.g. on a known and
safe230V voltage source or on a known and safe
9Vbattery. Select the correct measuring range!

EN 5
digital true RMS multimeter BE52
Information about the device
Device description
The multimeter is a battery-powered, mobile hand-held
measuring device with an extensive range of measurement
possibilities. The true RMS measuring function allows for the
precise measurement of sinusoidal and non-sinusoidal signals
generated due to faults, e.g. by frequency inverters or switching
power supplies of computers.
The device is equipped with the following functional properties
and equipment features:
• Automatic/ manual range selection
• LCD display
• Can also be operated while wearing gloves
• Fold-out stand and holding fixture for measuring tips
• AC and DCvoltage measurement
• Measurement of direct and alternating currents
• Resistance measurement
• Capacitance measurement
• Frequency/ duty cycle measurement
• Diode testing function
• Acoustic continuity testing
• Hold function
• Calling the maximum and minimum value
The integrated Bluetooth function makes it possible to connect
the device to a terminal device via the Trotec MultiMeasure
Mobile app.
The measurement results can be displayed and saved on the
terminal device either numerically or in form of a chart. Then,
the measurement data can be sent in PDF or Excelformat.
The app also includes a report generation function, an organiser
function, one for customer management and further analysis
options. Moreover, it is possible to share measurements and
project data with colleagues in another subsidiary. If
MultiMeasure Studio Professional is installed on a PC, you can
even use report templates and ready-made text blocks for
various fields of application to turn the data into professional
reports.
Overvoltage protection and measurement category
The power grid is permanently subjected to short-time voltage
peaks, the so-called voltage surge, which can be very low, for
instance when a light switch is actuated, but also very high
when a network operator switches over power lines. The height
of the surge voltage depends on the position within a low-
voltage network in which a device/machine is operated. The
closer this position is to the supply line, the higher is the surge
voltage to be expected. This means that an electricity meter of a
house must be able to absorb a higher surge voltage than a
Wlan router.
For the purpose of simplification, the power grid is divided into
four overvoltage categories. A rated surge voltage is assigned to
overvoltage categories in each case, indicating the voltage
peaks for which a device has to be designed:
Overvoltage
category
Rated surge
voltage
Examples
CAT I 1500V Devices with power
adapter:
e.g.: laptops,
monitors,
telephones
CAT II 2500 V Devices with cold-
device plugs:
e.g.: household
appliances, printers,
laboratory
equipment,
telephone system
CAT III 4000 V Devices without a
plug:
e.g.: sub-
distributions,
cables, sockets,
CNC machines,
construction cranes,
energy storage
systems
CAT IV 6000 V Devices at the feed
point:
e.g.: electricity
meters, primary
overcurrent
protection devices,
main switches
In line with the overvoltage categories there are measurement
categories defining the permissible scope of application of
measurement and testing devices for electrical equipment and
systems in low-voltage networks.

6 EN
digital true RMS multimeter BE52
The design of a measurement device determines in which
environments and for which voltages it can be safely used. What
is important in this connection for example is the touchability of
live parts, anti-kink protection guards on the measuring lines or
the insulation. Depending on the design details, the
measurement device can carry out safe measurements up to a
specific voltage in one or several overvoltage categories. The
measurement category is specified on the measurement device
as well as in the operating manual.
The measurement category is indicated including the maximum
voltage height, which can either be 300, 600 or 1000Volt. The
designation CAT III/1000 V for example means that the
measurement device may be used in low-voltage indoor
installation for voltages up to 1000volts.
Often several values are indicated on the device, for instance
CAT III/ 1000 V and CAT IV/600 V. In these cases, different
maximum voltages apply to the stated scopes of application. If
no measurement category is specified, the measurement device
is only considered as safe in measurement category CAT I.
This measurement device is suited for categoryCAT III (600V).
Device depiction
1
3
4
6
7
2
8
12
14
9
16
10
15
5
11
13
No. Designation
1 LC display
2 button
No. Designation
3HOLD/ button
4 Rotary switch
5 Measuring socket VΩ
6 Measuring socket COM
7 Red measuring tip
8 Black measuring tip
9 Fold-out stand
10 Fuse compartment
11 Battery compartment
12 Holding fixture for measuring tips
13 Work light
14 Measuring socket 10 A
15 MODEbutton
16 MAX/MIN/Rbutton
Rotary switch
22
23 17 18
19
20
21
No. position Description
17 OFF Device is switched off.
18
Hz%
ACvoltage:
0.001mV to 1000V
Frequency measurement:
0.01Hz to 9999Hz
Duty cycle:
1% to 99%
19 DCvoltage:
0.1mV to 1000V
20 Ω/ /
CAP
Resistance measurement:
0.1Ω to 40MΩ
Diode test/ continuity measurement
Capacitance measurement:
0.01nF to 4000μF
21
µA
Direct and alternating current:
up to 6000µA
22
mA
Direct and alternating current:
up to 400mA
23
10A
Direct and alternating current:
up to 10A

EN 7
digital true RMS multimeter BE52
Technical data
General characteristics
Parameter Value
Insulation double
Diode test Test current of 0.3mA, test voltage
< 3.3VDC typically
Continuity test An acoustic signal is emitted if the
resistance amount to less than 50Ω.
Test current: < 0.5 mA
LC display 33/4 digits, 4000count LCD, with
background illumination
Exceedance of the
measuring range
(outside limits)
OL will be displayed.
Polarity Automatic (no indication for positive);
minus(-) sign for negative
Measuring speed 2x per second, nominal
Battery indication The battery icon will be displayed
when the battery voltage drops below
the operating voltage threshold.
Battery 2 x 1.5 V, type AAA
Fuses µA/mA range: 500mA/ 600V
10A range: 10A/ 600V
(measurement up to 10A for
30seconds possible. Afterwards a
break of 15minutes must be
observed.)
Operating temperature 5°C to 40°C (41°F to 104°F)
Storage temperature -20°C to 60°C (-4°F to 140°F)
Relative humidity for
operation
<80% to 31°C (87 °F), linearly
decreasing to 50% at 40°C (104°F)
Relative humidity for
storage
< 80 %
Operating height above
sea level
Max. 2000m (7000ft)
Type of protection IP40
Weight approx. 140g
Dimensions (lengthx
widthx height)
121 x 67x 45mm
Automatic switch-off after approx. 15minutes of non-use
Safety This measuring device is designed for
indoor use and complies with
overvoltage category CATIII(600V).
Measuring ranges
Function Measuring
range
Resolution Accuracy
DCvoltage
(VDC)
400.0mV 0.1mV ± (1% +
8digits)
4.000V 0.001V ± (1% +
3digits)
40.00V 0.01V
400.0V 0.1V
600V 1V ± (1.2%
+3digits)
ACvoltage
(VAC)
(50/ 60Hz)
4.000V 0.001V ± (1.0%
+5digits)
40.00V 0.01V
400.0V 0.1V
600V 1V ± (1.2%
+5digits)
Direct current
(ADC)
400.0µA 0.1µA ± (1.0%
+3digits)
4000µA 1µA ± (1.5%
+3digits)
40.00mA 0.01mA
400.0mA 0.1mA
10A 0.01A ± (2.5%
+5digits)
Alternating
current
(A AC)
(50 / 60 Hz)
400.0µA 0.1µA ± (2.0%
+5digits)
4000µA 1µA ± (2.5%
+5digits)
40.00mA 0.01mA
400.0mA 0.1mA
10A 0.01mA ± (3.0%
+7digits)
Capacitance
(nF)
40nF 0.01nF ± (5.0%
+35digits)
400nF 0.1nF ± (3.0%
+5digits)
4.000μF 0.001μF
40.00μF 0.01μF
400.0μF 0.1μF ± (4.0%
+5digits)
4000μF 1μF ± (5.0%
+5digits)
Resistance
(Ω)
400.0 Ω 0.1 Ω ± (1.0%
+4digits)
4.000kΩ 0.001kΩ ± (1.5%
+5digits)
40.00kΩ 0.01kΩ
400.0kΩ 0.1kΩ
4.000MΩ 0.001MΩ
40.00MΩ 0.01MΩ ± (3.5%
+5digits)

8 EN
digital true RMS multimeter BE52
Function Measuring
range
Resolution Accuracy
Frequency 9.99Hz 0.01Hz ± (1.0%
+5digits)
99.99Hz
999.9Hz 0.1Hz
9999Hz 1Hz
Duty factor 1-99 % 1 % ± (1.2%
+5digits)
Pulse width: 100μs to 100ms, frequency: 5Hz
to 100kHz
Note:
The accuracy is based on an ambient temperature of 18°C to
28°C and a relative humidity of less than 80%.
The accuracy specification consists of two values:
• %value referring to the reading
• +digits: Deviation in the last digit
Scope of delivery
• 1x device BE52
• 2x Measuring tip
• 2x 1.5V battery AAA
• 1x Quick guide
Transport and storage
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
When transporting the device, ensure dry conditions and and
protect the device from external influences e.g. by using a
suitable bag.
Storage
When the device is not being used, observe the following
storage conditions:
• dry and protected from frost and heat
• protected from dust and direct sunlight
• the storage temperature complies with the values specified
in the Technical data
• Remove the batteries from the device.
Operation
Warning of electrical voltage
Electric shock due to contact with live parts! When
using the measuring tips, make sure not to reach
behind the protection against contact.
Only remove the protective caps of the measuring tips briefly if
this is required for a measurement. Fit the protective caps
immediately again after the measurement, in order to prevent
injuries caused by negligence.
Inserting the batteries
Insert the batteries before first use.
Note
Disconnect the measuring tips from the device before
opening the battery compartment.
Note
Make sure that the surface of the device is dry and the
device is switched off.
1. Loosen the screw at the battery compartment(11).
2. Open the battery compartment.
3. Insert the batteries (2x 1.5V batteriesAAA) into the
battery compartment with correct polarity.
11
4. Close the battery compartment and retighten the screw.

EN 9
digital true RMS multimeter BE52
Attaching the warning signs
Prior to initial start-up, make sure that the warning sign at the
rear of the device and the warning sign below the stand are in
your local language, if not, paste the proper ones over them.
Warning signs in your native language are supplied along with
the device. Please proceed as follows to attach the warning
signs to the rear of the device:
1. Remove the labels in your local language from the supplied
film.
2. Stick the labels onto the places that are provided for this
purpose on the stand and on the fuse compartment below
the stand.
Undefined displays
If measuring inputs are open or touched by hand, this can lead
to undefined displays. This is not a malfunction but a reaction of
the sensitive measuring input to existing interference voltages.
Normally, when there is no high interference level at the
workplace or in case of a short circuit at the measuring input
zero is displayed immediately. Or, if the measuring object is
connected, the exact measured value is displayed. Fluctuations
in the displayed value by some digits are systemic and within
the tolerance.
If the resistance measuring range, the continuity testing range
or the diode test was selected and the measuring input is open,
the OLindication (exceedance of the measuring range) will be
displayed.
IMPORTANT INFORMATION ON THE MEASURING PROCESS!
Warning of electrical voltage
Improper handling of the measuring device entails a
risk of electric shock!
Before carrying out voltage measurements, observe the
following:
• Never apply a voltage exceeding the rated nominal voltage
of the measuring device between the connections or
between the connections and earth (see imprint on the
housing).
• Check the measuring tips for damaged insulation and for
continuity. Replace damaged measuring tips.
• Check the insulation of the measuring device sockets.
• Before commissioning, check the function of the device at
a known voltage source, e.g. on a known and safe230V
voltage source or on a known and safe 9Vbattery.
• First connect the measuring tip connected to earth and
afterwards the live measuring tip. When disconnecting the
measuring tips, proceed in reverse order, i.e. disconnect
the live measuring tip first.
• Prior to every voltage measurement make sure that the
measuring device is not set to the current measuring
range.
• If the device indicates an exceedance of the measuring
range(OL) immediately after being connected to the
measuring object, first switch off the circuit at the
measuring object, then immediately remove the measuring
tips from the measuring object.
• Do not switch any motors in the measuring circuit on or off
during a measurement. Voltage peaks caused by a
switch-on or switch-off can damage the measuring device.

10 EN
digital true RMS multimeter BE52
Operating elements
You can select the following operating elements for the
measurement:
15
16 2
3
4
Bluetooth/work light button(2):
• Switching the work light on/off: press briefly
• Enabling/disabling Bluetooth: press for a long time
Hold/display illumination button(3):
• Freezing the measurement value (Hold function): press
briefly
• Switching the display illumination on/off: press for a long
time
Rotary switch(4):
• Setting the type of measurement
MODEbutton(15):
• Changing the measuring mode within the type of
measurement set
MAX/MIN/Rbutton(16):
• Calling the maximum value: press once
• Calling the minimum value: press twice
• Deactivating the maximum/minimum value indication:
Press for 1 second
• Setting the range (decimal places): press for a long time.
Then press briefly to adapt the decimal places.
Measuring DCvoltage
1. Turn the rotary switch to position (19).
2. Insert the plug of the black measuring tip into the
COM(6)measuring socket and the plug of the red
measuring tip into the VΩ(5)measuring socket.
3. Connect both measuring tips to the measuring object with
correct polarity (black to minus, red to plus).
ðIf the input voltage is negative, a minus(-) will appear in
front of the measured value on the display.
ðThe measured value will be indicated on the display.
Example:
Measuring ACvoltage
1. Turn the rotary switch to position
Hz%
(18).
2. Plug the connector of the black measuring tip into the
measuring socketCOM(6) and the connector of the red
measuring tip into the measuring socketVΩ(5).
3. Connect both measuring tips to the measuring object.
ðIf the input voltage is negative, a minus(-) will appear in
front of the measured value on the display.
ðThe measured value will be indicated on the display.
Example:

EN 11
digital true RMS multimeter BE52
Current measurements
Note
Never connect a voltage source to the multimeter's
measuring sockets when a current measuring range is
selected. Otherwise the device could be damaged.
Note
Observe that a measurement time of 30seconds must
not be exceeded when carrying out a current
measurement of 10A. After having carried out a
measurement up to 10A, take a break for at least
15minutes.
üThe electrical circuit is deactivated. The capacitors are
discharged.
üThe voltage in the measuring circuit is not higher than
600V (CATIII) to earth.
1. Interrupt the circuit to be checked and connect the
measuring device in series with the consumer in this
circuit.
2. Depending on the expected measuring current, turn the
rotary switch to the following position:
- up to 6000 µA:
- up to 400 mA:
- up to 10 A: .
3. Use the MODE button(15) to select the desired measuring
mode (for direct current:. DCindication) for alternating
current: ACindication).
4. Insert the plug of the black measuring tip into the COM(6)
measuring socket and the plug of the red measuring tip
into the VΩ(5) (up to 400mA) or 10A(14)measuring
socket – depending on the selected range.
5. Switch off the voltage supply at the measuring object and
connect the measuring tips to the measuring object. For
direct current, make sure that the polarity of the
connection to the measuring object is correct (in series;
red to plus, black to minus).
6. Switch the measuring circuit back on and read the
measured value from the display.
7. If the OLindication (exceedance of the measuring range)
appears after the manual range selection, immediately
switch over to the respectively next higher range. If the
OLindication appears and the maximum range has been
set already or in case of the automatic range selection,
immediately switch off the voltage supply at the measuring
object and disconnect the measuring device from the
measuring object.
Info
If you have selected the 10A range for safety's sake,
but the measuring current amounts to less than
400mA, switch the measuring circuit back off. Plug
the red measuring tip into the VΩmeasuring socket
and select a measuring range in the mArange. Switch
the measuring circuit back on.
Example:
Info
If there is no indication and all connections have been
established correctly, the cause of the fault may be a
defective internal fuse protecting the current
measuring ranges (see chapter Fuse replacement).
Measuring resistance
Warning of electrical voltage
Before carrying out resistance, continuity or diode
measurements, switch off the current of the electric
circuit and discharge all capacitors.
1. If possible, disconnect other circuit areas from the
resistance to be measured, since they may have an impact
on the measurement.
2. Set the rotary switch to the Ω/ /CAP(20) position,
then use the MODEbutton(15) to select the resistance
measurement (MΩindication).
3. Insert the plug of the red measuring tip into the
V/Ωmeasuring socket(5) and the plug of the black
measuring tip into the COMmeasuring socket(6).
4. Connect the measuring tips to the measuring object.
ðThe measuring device may take some time to display a
stable value. This is due to the measuring principle and
not a malfunction.
ðThe measured value will be indicated on the display.

12 EN
digital true RMS multimeter BE52
Continuity test
Warning of electrical voltage
Before carrying out resistance, continuity or diode
measurements, switch off the current of the electric
circuit and discharge all capacitors.
1. Set the rotary switch to the Ω/ /CAP(20) position,
then use the MODEbutton(15) to select the continuity test
(indication).
2. Insert the plug of the red measuring tip into the
V/Ωmeasuring socket(5) and the plug of the black
measuring tip into the COMmeasuring socket(6).
3. Connect the measuring lines to the circuit to be tested.
ðWhen the circuit is closed and the resistance is smaller
than 50Ω, an acoustic signal is emitted.
ðWhen the circuit is open, OL is displayed.
Diode testing
Warning of electrical voltage
Before carrying out resistance, continuity or diode
measurements, switch off the current of the electric
circuit and discharge all capacitors.
1. Set the rotary switch to the Ω/ /CAP(20) position,
then use the MODEbutton(15) to select the diode test
( and Vindication).
2. Insert the plug of the red measuring tip into the
V/Ωmeasuring socket(5) and the plug of the black
measuring tip into the COMmeasuring socket(6).
3. Connect the measuring tips to the diode. If the
OLindication (exceedance of the measuring range) is
displayed, swap the measuring tip connections at the
diode.
ðThe following indications may typically be displayed:
- 0.400 to 0.700 V: Diode ok
- indications near 0 V: Circuit short-circuited
- OL: open circuit (in both polarities)
Example:
Measuring capacitance
Before carrying out capacitance measurements, observe the
following:
• Discharge each capacitor before carrying out a
measurement! Residual voltage in the capacitor can lead
to a destroyed measuring device!
• Never connect the measuring inputs to a voltage source.
This will destroy the measurement device.
• For reasons of safety, measure whether there is a residual
charge in the capacitor (using the VDCrange) before you
perform a capacitance measurement.
1. Set the rotary switch to the Ω/ /CAPposition(20),
then use the MODEbutton(15) to select the capacitance
measurement (nFindication).
2. Insert the plug of the red measuring tip into the
V/Ωmeasuring socket(5) and the plug of the black
measuring tip into the COMmeasuring socket(6).
3. Connect the capacitor to be tested to the measuring tips.
Electrolytic capacitors must be connected with correct
polarity (red to plus, black to minus).
Since the charging processes within the capacitor require
a certain amount of time, the indication will be delayed by
up to 3minutes. This delay is systemic, not a malfunction.
Wait until the displayed value has stabilized before reading
the measured value.
ðThe measured value will be indicated on the display.
Note:
In case of a defective capacitor zero will be displayed.
Bear in mind that electrolytic capacitors can come with a
substantial scattering within their tolerance range.
Residual voltages in the capacitor or damaged insulating layers/
dielectrics can lead to significantly falsified results.
Measuring frequency/duty cycle
1. Set the rotary switch to the
Hz%
position(18), then use the
MODEbutton(15) to select the desired measurement
mode (for frequency:). Hzindication, for duty cycle:
%indication).
2. Insert the plug of the red measuring tip into the
V/Ωmeasuring socket(5) and the plug of the black
measuring tip into the COMmeasuring socket(6).
3. Connect the measuring tips to the measuring object.
ðDepending on the selection with the MODEbutton(15),
the frequency or the duty cycle is shown.

EN 13
digital true RMS multimeter BE52
Displaying the minimum/ maximum value
The device comes with a maximum and minimum value
indication.
You can call the maximum value saved by pressing the
MAX/MIN/Rbutton(16).
When you press the MAX/MIN/R button again, the device will
show the minimum value saved.
Press theMAX/MIN/Rbutton(16) for one second to exit the
minimum/ maximum value indication.
Setting the range
The device is provided with an auto-range function, this means
that it adapts the indication of the decimal places and the unit to
the measurement result. You can adapt the indication manually.
To do so, please proceed as follows:
1. Press the MAX/MINRbutton(16) for a long time.
ðThe device exits the auto-range function and enables
manual setting.
2. Repeatedly press the MAX/MIN/Rbutton(16) briefly until
the desired setting of the decimal places is displayed.
3. Carry out the measurements.
4. Return to the auto-range function by pressing the
MAX/MIN/Rbutton(16) for a long time.
Hold function
Press the HOLD/ button(3) to freeze the current measured
value on the display. The symbol on the display indicates the
active Hold function.
Press the HOLD/ button again to exit the Hold function and
return to the indication of the current measured value. The
symbol goes out.
Switching the display illumination on/off
Press the HOLD/ button(3) for a long time to switch on the
display illumination.
Press the HOLD/ button again for a long time to switch off
the display illumination again.
Switching the work light on/off
Press the button(2) briefly to switch on the work light.
Press the button briefly again to switch off the work light
again.
Enabling or disabling Bluetooth
The device is provided with a Bluetooth function that allows you
to connect the device with a terminal device (mobile phone,
tablet, etc.) on which the MultiMeasure Mobile App is installed
(see chapter MultiMeasure Mobile App).
Press the button(2) for a long time to switch on the
Bluetooth function.
Press the button for a long time again to switch off the
Bluetooth function again.
Switching the device off
Info
The device is switched off automatically after
15minutes of non-use.
Set the rotary switch to the OFF position to switch off the device
manually.
MultiMeasure Mobile app
MultiMeasure Mobile app
Install the Trotec MultiMeasure Mobile app on the terminal
device you want to use in combination with the device.
Info
Some of the app's functions require access to your
location and an active Internet connection.
The app is available for download in the Google Play Store as
well as in Apple's app store and via the following link:
https://hub.trotec.com/?id=43083
Connecting a measuring device
Info
The app can simultaneously be connected to several
different measuring devices or measuring devices of
the same type and also record several measurements
at the same time. The number of the sensors that can
be connected depends on the terminal device.
Proceed as follows to connect a measuring device to the
terminal device:
üThe Trotec MultiMeasure Mobile app is installed.
üThe Bluetooth function on your terminal device is activated.
1. Switch on the measuring device (see chapter Operation).
2. Make sure that the Bluetooth function is activated on the
measuring device.

14 EN
digital true RMS multimeter BE52
3. Start the Trotec MultiMeasure Mobile app on the terminal
device.
ðA list of active and available sensors will be displayed.
4. Press the button to refresh the display if the desired
measuring device is not displayed as an active measuring
device.
ðThe terminal device now searches all active sensors
again and shows them on the display.
Sensors
Sensors Measurements Reports Customers Settings
Active sensors nearby
Available sensors
Connect
5. Select the desired sensor from the list of active sensors.
ðThe measuring device and the terminal device establish
a connection with each other.
ðThe measured value indication appears on the display.
Measured value indication
When the sensor and the terminal device have established a
successful connection, the submenu for the measurement will
open and the display indicates the measuring mode set at the
multimeter in a continuous measurement.
You can switch to a different measuring mode by setting the
rotary switch at the multimeter to the desired measuring mode.
For some measuring modes you additionally have to press the
MODE button (see Operation chapter).
As an example, the screen for the AC voltage measuring mode
is shown here:
Sensors Measurements Reports Customers Settings
AC voltage
HOLD REL MIN MAX PEAK
The last 12 values measured over time and the corresponding
unit are displayed in the measured value field.
After several measurements have been carried out, the lowest
value, highest value, average value and current value are
displayed below the measured value field.
Measuring menu
Press the button or the free area below the measurement
value display to open the measuring menu at the bottom of the
display. You can select from the following options in the
measuring menu:
• reset the min/max average value
• switch over between X/T measurement (coordinate
system) and the display of individual values
• terminate the connection to the sensor
• view and modify sensor settings
• start recording of measured values
X/Tmeasurement
Disconnect sensor
Sensor settings
Start recording
Sensors Measurements Reports Customers Settings
HOLD REL MIN MAX PEAK
Reset min/ max/ Ø
AC voltage

EN 15
digital true RMS multimeter BE52
Display of individual values
After deactivation of the X/T measurement button, the display
changes from continuous measurement to showing individual
values.
Refresh measured value
Sensors Measurements Reports Customers Settings
AC voltage
HOLD REL MIN MAX PEAK
The current measured value and the corresponding unit are
displayed in the measured value field.
After several measurements have been carried out, the lowest
value, highest value, average value and current value are
displayed below the measured value field.
By pressing the Refresh measured value button, you start a new
measurement.
Recording measurements
Info
The minimum recording time is 30seconds. If a
measurement is interrupted or cancelled before this
minimum measurement time has elapsed, it cannot be
saved and may have to be performed again.
By actuating the Start Recordingbutton, the app starts
recording the measured values.
Instead of the button, the symbol of the active sensor flashes
to indicate that recording is in progress. You can press this
flashing symbol or the free area below the measurement value
display to open the context menu to stop recording.
You can choose from saving or discarding the record after
stopping recording.
Menu bar
The functions of the MultiMeasure Mobile App are controlled via
the menu bar from which the submenus can be accessed.
Info
Depending on the operating system of the terminal
device, the menu bar is located at the top (Android) or
bottom (IOS) of the display. In the further description
the displays of the Android system are shown as an
example.
Sensors Measurements Reports Customers Settings
Designation Function
Sensors Opens the sensors overview. After
connecting to the selected sensor, the
submenu for the measurement opens.
Measurements Opens the overview of saved measurements.
The measurement series can be opened and
edited.
Reports Opens the overview of saved reports. You
can generate on-site reports for the
measurements and link them to customer
data.
Customers Opens the customers overview. You can
select existing customers or create new
customers.
Settings Opens the settings menu. You can select the
language and– depending on the measuring
device– adjust different settings.

16 EN
digital true RMS multimeter BE52
Submenu measurements
In the submenu MEASUREMENTS, the saved recordings of the
measured values are displayed along with date, name and
number of measuring points. Having selected the desired
recording, the context menu of the measurement opens.
Depending on the sensor type and the measuring mode,
different functionalities can be opened. The following menu
items are available:
Sensors Measurements Reports Customers Settings
test_a1
Basic data
Evaluations
Evaluation parameters
Values
Generate table
Generate graphic
Generate image overlay
Colour scaling
•Basic data:
Opens an overview of the data saved for the measurement.
•Evaluations:
Opens an overview of the evaluations generated for the
measurement (photos, graphics and tables).
•Evaluation parameters:
Opens a menu to select and deselect individual evaluation
parameters.
•Values:
Opens a tabular overview of all logged values for the
measurement.
•Generate table:
Creates a table containing the logged values of the
measurement and saves it as a*.CSVfile.
•Generate graphic:
Creates a graphic representation of the logged values and
saves it as a*.PNGfile.
•Generate image overlay:
Combines a background image with the representation of
the measured values.
•Colour scaling:
Allows you to adjust the colour display of the measured
values.
Submenu reports
The reports generated in the MultiMeasure Mobile app are short
reports providing a fast and simple documentation.
You can select from the following options in the REPORTS
submenu:
•Indicate existing reports:
Having selected a report, a submenu opens where you can
view and modify information.
Sensors Measurements Reports Customers Settings
Reports
03/26/2019
report 01
report 02
•Generate a new report:
Press the +button to open the input mask for a new
report.
Submenu customers
Using the integrated customer management function all of the
measured data can be assigned to specific clients via the app.
You can select from the following options in the CUSTOMERS
submenu:
•Call up an already created customer:
Having selected a report, a submenu opens where you can
view and modify information or directly start a
measurement.
Sensors Measurements Reports Customers Settings
Customers
test_a1
test_a2
•Creating a new customer:
Press the button to open the input mask for a new
customer. You can create a new customer set or import an
existing contact from the phone book of the terminal
device.

EN 17
digital true RMS multimeter BE52
Submenu settings
In the submenu SETTINGS you can adjust different settings, e.g.
changing the menu language.
Note
The various sensors have slightly different setting
options.
Example: Submenu SETTINGS:
Sensors Measurements Reports Customers Settings
Settings
Language
English
Help
[Temperature °F]
Maintenance and repair
Battery change
Info
In case of a low battery the displayed values may be
inaccurate or incorrect! If so, stop using the measuring
device and exchange the batteries immediately.
A battery change is required when the battery status indication
displays an empty battery symbol, when incorrect measured
values are displayed or when the device can no longer be
switched on (see chapter Inserting the batteries).
Fuse replacement
Caution
Switch the device off and remove the measuring tips
from the measuring sockets before opening the device!
Internal fuses may only ever be replaced with fuses of
the same type, never with one of a higher amperage or
with a provisional solution! Otherwise the
consequences include the risk of accidents, the
destruction of the device and the loss of warranty.
Note
Only replace fuses of the same type!
1. Fold the stand at the rear of the device up.
2. Loosen the screw of the fuse compartment and remove the
fuse compartment cover.
3. Remove the defective fuse.
4. Insert a new fuse:
- µA/mA range: 500mA/ 600V
- 10A range: 10A/ 600V
5. Attach the cover and secure it by tightening the screw.
6. Fold back the stand.
Cleaning
Clean the device with a soft, damp and lint-free cloth. Make
sure that no moisture enters the housing. Do not use any
sprays, solvents, alcohol-based cleaning agents or abrasive
cleaners, but only clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs
or device testing, contact the manufacturer.

18 EN
digital true RMS multimeter BE52
Errors and faults
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
Display segments are only faintly visible or flicker:
• Do not perform another measurement or stop ongoing
measurements immediately!
• The battery voltage is too low. Exchange the batteries
immediately.
The device displays implausible measured values:
• Do not perform another measurement or stop ongoing
measurements immediately!
• The battery voltage is too low. Exchange the batteries
immediately.
Disposal
Always dispose of packing materials in an environmentally
friendly manner and in accordance with the applicable local
disposal regulations.
The icon with the crossed-out waste bin on waste
electrical or electronic equipment is taken from Directive
2012/19/EU. It states that this device must not be disposed of
with the household waste at the end of its life. You will find
collection points for free return of waste electrical and electronic
equipment in your vicinity. The addresses can be obtained from
your municipality or local administration. You can also find out
about other return options that apply for many EU countries on
the website https://hub.trotec.com/?id=45090. Otherwise,
please contact an official recycling centre for electronic and
electrical equipment authorised for your country.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
In the European Union, batteries and accumulators must
not be treated as domestic waste, but must be disposed of
professionally in accordance with Directive 2006/66/EC of the
European Parliament and of the Council of 6September2006
on batteries and accumulators. Please dispose of batteries and
accumulators according to the relevant legal requirements.
Only for United Kingdom
According to Waste Electrical and Electronic Equipment
Regulations 2013 (SI2013/3113) (as amended) and the Waste
Batteries and Accumulators Regulations 2009 (SI2009/890) (as
amended), devices that are no longer usable must be collected
separately and disposed of in an environmentally friendly manner.
Declaration of conformity
We– Trotec GmbH– declare in sole responsibility that the
product designated below was developed, constructed and
produced in compliance with the requirements of the EU Radio
Equipment Directive in the version 2014/53/EU.
Product model/ Product: BE52
Product type: digital true RMS multimeter
Year of manufacture as of: 2022
Relevant EUdirectives:
• 2011/65/EU
• 2012/19/EU
• 2014/30/EU
• 2015/863/EU
Applied harmonised standards:
• EN 61326-1:2013
• EN 61326-2-2:2013
• IEC 62321-4:2013
Applied national standards and technical specifications:
• Regulation (EC) 1907/2006
• EN IEC 61000-4-2:2008
• EN IEC 61000-4-3:2010
• EN IEC 61000-4-8:2009
• IEC 62321-3-1:2013
• IEC 62321-5:2013
• IEC 62321-6:2015
• IEC 62321-7-1:2015
• IEC 62321-7-2:2017
• IEC 62321-8:2017
Manufacturer and name of the authorised representative of
the technical documentation:
Trotec GmbH
Grebbener Straße 7, D-52525 Heinsberg
Phone: [phone]
E-mail: [email protected]
Place and date of issue:
Heinsberg, 25.05.2022
Joachim Ludwig, Managing Director

Trotec GmbH
Grebbener Str. 7
D-52525 Heinsberg
[phone]
[phone]
[email protected]
www.trotec.com