Berner 043345 Instrucciones De Uso página 12

To get the best service from this instrument, read carefully this user´s manual and
respect the detailed safety precautions.
Precautions safety measures Preliminary
This device can be used for measurement on category II installations, for voltages
never exceeding 600V (AC or DC) relative to the earth. Definition of overvoltage
categories:
CAT I: The CAT I circuits are protected by measures limiting transient overvoltages
to appropriate low level.
Example: protected electronic circuits.
CAT II: The CAT II circuits are power supply circuits of appliances or portable
equipment with transient overvoltages of an average level.
Example: appliances and portable equipment.
CAT III: The CAT III circuits are power supply circuits of power equipment with high
transient overvoltages.
Example: fixed installation or industrial equipment.
CAT IV: The CAT IV circuits may comprise very important transient overvoltages.
Example: primary supply level.
When using this clamp meter, the user must observe all normal safety rules concerning:
- Protection against dangers of electric current.
- Protection of the clamp meter against misuse.
For own safety, only use the test probes supplied with the instrument. Before use,
check that they are in good conditions.
During use
- Before measurement, warm up for at least 30 seconds.
- If the meter is used near noise generating equipment, be aware that display may
become unstable or indicate large errors.
- Do not use the meter or test leads if they look damaged.
- Use the meter only as specified in this manual; otherwise, the protection provided
by the meter may be impaired.
- To avoid damages to the instrument, do not exceed the maximum limits of the input
values shown in the technical specifications tables.
- Check the main function dial and make sure it is at the correct position before each
measurement.
- Use extreme caution when working around bare conductors or bus bars.
- Never measure current while the test leads are inserted into the input jacks.
- Accidental contact with the conductor could result in electric shock.
- Caution when working with voltages above 60V DC or 30V AC RMS. Such voltages
pose a shock hazard.
- Never perform resistance or continuity measurements on live circuits.
- Before changing functions, disconnect the test leads from the circuit under test.
- Keep the fingers behind the protection ring while measuring.
- Change the battery when the
Symbols
Symbols used in this manual and on the instrument:
Caution: refer to the instruction manual. Incorrect use may result in damage to the
device or its
components.
Earth:
symbol appears to avoid incorrect data.
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