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• Be especially careful when dealing with voltages higher than 33 V alternating (AC) or 70 V
direct voltage (DC)! Even at these voltages it is possible to receive a potentially fatal electric
shock if you touch electrical conductors.
• To avoid electric shock, make sure not to touch the connections/measuring points to be
measured directly or indirectly during measurement. Never reach beyond the noticeable
grip area marks at the measuring prods during measurements.
• Check the meter and its measuring lines for damage before each measurement. Never
carry out any measurements if the protecting insulation is defective (torn, ripped off etc.).
The enclosed measuring cables have a wear indicator. When they are damaged, a second
insulation layer in a different colour becomes visible. The measuring accessories must no
longer be used and must be replaced.
• Do not use the multimeter just before, during or just after a thunderstorm (lightning! / high-
energy overvoltage!). Make sure that your hands, shoes, clothing, the floor, circuits and
circuit components are dry.
• Never operate the product in direct proximity of:
- strong magnetic or electromagnetic fields
- Transmitter aerials or HF generators.
This could affect the measurement.
• If you have reason to believe that the device can no longer be operated safely, disconnect
it immediately and make sure it is not operated unintentionally. It can be assumed that safe
operation is no longer possible if:
- the device shows visible damage
- the device no longer functions
- the device was stored under unfavourable conditions over an extended period of time or
- following considerable stress during transportation.
• Do not switch the meter on immediately after it was taken from a cold to a warm
environment. The condensation that forms might destroy your device. Allow the device to
reach room temperature before switching it on.
• Do not leave the packaging material lying around carelessly since such materials can
become dangerous toys in the hands of children.
• Also observe the safety information in each chapter of these instructions.
Do not exceed the maximum permitted input values. Do not touch any
circuits or parts of circuits if they may be subject to voltages higher than
33 V/ACrms or 70 V/DC! Danger to life!
Before measuring, check the connected measuring lines for damage such
as, for example, cuts, cracks or squeezing. Defective measuring lines must
no longer be used! Danger to life!
During measuring, do not grip beyond the tangible grip range markings
present on the measuring prods.
Only the two measuring lines that are required for measuring operation
must be connected to the meter at any time. Remove all measuring lines
not required from the meter for safety reasons before performing the
measurement.
Measurements in electrical circuits >33 V/AC and >70 V/DC must only be
carried out by specialists and technically instructed personnel who are
familiar with the relevant regulations and the ensuing risks.
Ensure before every measurement that the meter is not set to another
measuring range. Also observe that the HOLD button has not been
pushed at the beginning of the measurement (display with the HOLD
button pushed: "H"). If the HOLD button is pushed at commencement of
measuring, no measured value is displayed!
Observe the required safety notes, provisions and safety measures for
intrinsic protection.
Always start your measurements with the largest measuring range. Then switch
to the next-lower measuring range on demand. Before a measuring range
change, always remove the measuring prods from the measuring object. When
"OL" (= overflow) appears in the display, you have exceeded the measuring
range.
a) Current measuring "A"
The maximum permissible voltage in the measuring circuit against ground potential must not
exceed 600 V in CAT II and III.
b) Impedance measurement
Make sure that all circuit parts, circuits and components and other objects of measurement
are disconnected from the voltage and discharged.
c) Acoustic continuity test
Make sure that all circuit parts, circuits and components and other objects of measurement
are disconnected from the voltage and discharged.
d) Diode test
Make sure that all circuit parts, circuits and components and other objects of measurement
are disconnected from the voltage and discharged.
e) Contact-free AC voltage recognition (NCV)
This function is not admissible to determine voltage freeness in electrical systems. For this, a
2-pole measurement must be performed at all times.
f) Cleaning and Maintenance
Regularly check the technical safety of the device and measuring lines, e.g. check for
damage to the casing or squeezing, etc.
g) Cleaning
Live components may be exposed if covers are opened or parts are removed (unless this can
be done without tools).
The connected lines must be disconnected from the meter and all measuring objects before
the device is cleaned or repaired. Switch off the DMM.
h) Batteries
• Never operate the meter when it is open. !DANGER TO LIFE!
• Do not leave flat batteries in the meter. Even batteries protected against leaking can
corrode and thus release chemicals which may be detrimental to your health or destroy the
device.
• Do not leave batteries lying around carelessly. They could be swallowed by children or pets.
If swallowed, consult a doctor immediately.
• Remove the battery if the device is not used for extended periods of time to prevent leaking.
• Leaking or damaged batteries may cause alkali burns if they come in contact with the skin.
Therefore, use suitable protective gloves.
• Make sure that the batteries are not short-circuited. Do not throw batteries into the fire.
• Batteries must not be recharged or dismantled. There is a risk of fire and explosion.
i) Fuse change
Always observe the safety provisions during fuse changes!
Ensure that only fuses of the indicated type and rated current must be used as spares. Use of
wrong or patched-up fuses or bridging of the fuse holder is not permitted and may cause fire.
Never operate the meter when it is open. !DANGER TO LIFE!
j) Troubleshooting
Repairs other than those described in the operating instructions must only be performed by
an authorised expert. In case of doubts regarding the use of the meter, please contact our
technical support for assistance.
Legal notice
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data processing
systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication represent the technical status at the
time of printing.
© Copyright 2015 by Conrad Electronic SE
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