Product-Specific Safety Instructions; Definition Of Overvoltage Categories - TESTBOY TV 215N Bedienungsanleitung

Operation

Product-specific safety instructions

Before opening the appliance, always remove it from the electrical source of power, neutralize
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your own static charge, this could damage internal components.
All adjustment, maintenance and repair tasks on energized tong meter must only be carried
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out by qualified specialists familiar with these instructions.
"Qualified" is a person familiar with the installation, type and operation of the equipment and
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the associated dangers. They are experienced and authorized to connect or disconnect
electrical circuits and installations according to the professional method of operation.
When opening the appliance, remember that some internal condensers retain voltage
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potential that is dangerous to life after being switched off.
If faults or unusual events occur, decommission the appliance and make sure that it can no
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longer be used until after it has been checked.
If the appliance is not used for a longer period of time, remove the batteries and keep the
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appliance in an environment that is not moist or too hot.
Particular attention must be paid for tasks on naked conductors and busbars. Contact with
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these components could result in an electric shock! Use the appropriate equipment!

Definition of overvoltage categories

Measurement category II: Measurements on circuits directly connected to low voltage networks
electrically via plug. Typical short-circuit current < 10 kA.
Measurement category III: Measurements within the building installation (stationary consumer
devices with non-plug-in connection, distributor connection, permanently installed equipment in
the distributor). Typical short-circuit current < 50 kA.
Measurement category IV: Measurements at the source of the low voltage installation (meters,
mains connection, primary overcurrent protection). Typical short-circuit current >>50 kA.
To establish the measurement category in a combination of test lead and measuring instrument,
the lowest category, either of the test lead or the measuring instrument, always applies.
When using this clamp meter, the user must observe all normal safety rules concerning:
Protection against dangers of electric current.
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Protection of the clamp meter against misuse.
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For own safety, only use the test probes supplied with the instrument. Before use, check that they
are in good conditions.
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Testboy TV 215N