Fluke 421D Technical Data Manual page 6

Symbols
Warning notices
The warning notices differ from one another
concerning the type of danger through the
following signs:
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Caution warns against damage to property.
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Warning warns against bodily harm.
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Danger warns against danger to life.
Composition of the warning notices
Signal words
Type and source of the danger!
 Measure to avoid the danger.
Other symbols
Notes
Note Notes on appropriate handling of laser
measuring devices.
Operation instructions
Composition of the operating instructions:
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Guidance to an operation.
Indication of an outcome, if necessary.
Schedules
Composition of the non numbered schedules:
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Schedule level 1
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Schedule level 2
Composition of the numbered schedules:
1. Schedule level 1
2. Schedule level 1
2.1 Schedule level 2
2.2 Schedule level 2
Safety and dangers
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Make sure that the device is not used
without instructions.
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Make sure that the device is used exclusively
according to the instructions.
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Make sure that the safety settings are not
disabled.
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Make sure that indication labels and caution
labels are not removed.
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Do not open the device with tools
(screwdriver etc.).
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Make sure that the device is not converted or
modified.
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Avoid using accessories of other producers
that are not recommended by Fluke.
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Make sure that the device is not used
carelessly:
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when working on scaffolds
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when climbing ladders
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when measuring near running machines
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when measuring on open machine parts
or installations
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Avoid aiming directly at the sun.
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Avoid blinding other persons intentionally
(also in darkness).
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Make sure that the measuring position is
secured sufficiently.
(e.g. in streets, on construction sites, etc.)
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Make sure that the device is in proper and
flawless condition.
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Do not use a defective device.
Correct usage
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measuring of distances
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calculation of functions
e.g. areas and volumes
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Use the device exclusively in an atmosphere
that is permanently inhabitable by humans.
Foreseeable misuse
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Do not use the device as a laser pointer.
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Do not use the device in explosive or
aggressive environments.
Areas of responsibility
Area of responsibility of the
manufacturer of the original
equipment
Fluke Corporation, P.O Box 9090, Everett, WA
(Fluke):
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Fluke is responsible for the safety-related
flawless delivery of the device including the
operating instruction.