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TESTBOY TV 216N Bedienungsanleitung Seite 10

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Verfügbare Sprachen

Verfügbare Sprachen

EN
1. General Instructions
This instrument has been designed and proofed to IEC/EN 61010-1 concerning safety requirements for
electronic measuring instruments and hand-held current clamps.
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 600 V
(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:
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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
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Before measurement, warm up for at least 30 seconds.
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If the meter is used near noise generating equipment, be aware that display may become unstable or
indicate large errors.
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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.
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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.
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Use extreme caution when working around bare conductors or bus bars.
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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 60 V DC or 30 V AC RMS. Such voltages pose a shock
hazard.
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Never perform resistance or continuity measurements on live circuits.
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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.
This instrument has double insulation
User´s Manual
symbol appears to avoid incorrect data.
10

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