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Automatic deactivation
After approximately 15 minutes the device will auto-
matically power itself off (APO). Pressing the [APO]
button for a longer duration switches the Auto Power
Off function on or off.
Background illumination
Pressing the [HOLD] button for a longer duration
switches on the background illumination. The illumi-
nation switches itself off automatically after approxi-
mately 1 minute.
Save function (HOLD)
In the event of difficult to reach measuring positions,
it may not be possible to read the display correctly.
Pressing the [HOLD] button freezes the current
measured value which enables it to be read from a
comfortable position.
Pressing the [HOLD] button again returns you to nor-
mal measuring mode.
True RMS
When measuring wave forms that are not sinusoidal,
the use of the True RMS function will result in fewer
measuring faults than using traditional measuring
procedures. Both sinusoidal and non-sinusoidal sig-
nals can be measured exactly using the True RMS
function.
Cleaning and maintenance
Cleaning
If the product has become dirty from daily use, it can
be cleaned with a damp cloth and some mild house-
hold detergent. Never use aggressive cleaners or sol-
vents for cleaning.
WARNING! Risk of injury! Ensure that
there are no voltages above 300 V present
on the test leads, even if the display thus
permits, as it can cause damage to the elec-
tronics!
Maintenance
The product does not require any particular mainte-
nance when operated in accordance with the instruc-
tions for use.
Battery change
Changing the battery is necessary when the batter
symbol [
] appears on the display. The measuring
leads must be detached from the device before
changing the battery!
NOTICE! Risk of product damage! Use
only batteries of the stated type.
NOTICE! Risk of environmental damage!
Batteries do not belong in the household
waste. You will find a collection point in your
vicinity!
– Remove the screws on the rear side, open the
product rear side and remove used batteries.
– Replace battery cover and re-tighten. Pay atten-
tion here to the correct polarity.
Fuse change:
– Remove the screws on the rear, open the battery
compartment and remove the fuse. Insert a new
fuse. Replace the battery compartment and screw
closed.
Note: Only use the specified fuses!
Correctness of the operating
instructions
These instructions for use have been compiled with
great care. No guarantee is given for the accuracy
and completeness of the data, illustrations and draw-
ings. The right to changes is reserved
Quality certificate
All quality relevant activities and processes carried
out within Testboy GmbH are continuously monitored
by a quality management system. Testboy GmbH fur-
ther confirms that the test appliances and instruments
used for calibration were subject to continuous
inspection equipment monitoring.
Declaration of Conformity
This product meets the most current guidelines. Addi-
tional information can be obtained from www.test-
boy.de
Disposal
Disposal of the appliance
A crossed-out wheelie bin icon means: Bat-
teries and rechargeable batteries, electrical
or electronic devices must not be disposed of
with household waste. They may contain
substances that are harmful to the environ-
ment and human health.
Consumers must dispose of waste electrical devices,
spent portable batteries and rechargeable batteries
separately from household waste at an official collec-
tion point to ensure that these items are processed
correctly. The product can be returned free of charge
in accordance with the legal requirements, for exam-
ple through a municipal waste disposal company or a
dealer.
Batteries, rechargeable batteries and lamps
that are not permanently installed in waste
electrical equipment and can be removed in
a non-destructive way must be removed and
disposed of separately before disposal of the equip-
ment. Lithium batteries and rechargeable battery
packs of all systems are only to be handed in to the
waste collection points in a discharged state. The bat-
teries must always be protected against short circuits
by taping off the poles.
All end users are responsible for deleting any per-
sonal data stored on waste devices prior to their dis-
posal.
Disposal of the packaging
The packaging consists of cardboard and
correspondingly marked plastics that can
be recycled.
– Make these materials available for recy-
cling.
GB
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