BRUEL & KJAER 4914 Instruction Manual page 4

Rhino-larynx stroboscope
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SAFETY REQUIREMENTS
This apparatus has been designed and tested according to Class II of IEC Publication
601-1 (Type BF), Safety of Medical Electrical Equipment, and has been supplied in safe
condition. The present Instruction Manual contains information and warnings which
should be followed by the user to ensure safe operation and to retain the apparatus in
safe condition. Special note should be made of the following:
SAFETY SYMBOLS AND WARNINGS
The apparatus is marked with a number of safety symbols and warnings. Whenever
these symbols are encountered, it is important that the user refer to the relevant warn-
ing, caution and attention statements given in the Instruction Manual.
A short explanation of the symbols marked on the apparatus is given below:
Symbol
Name
Description
A
Consult ACCOMPANYING DOCUMENTS when this sign
ATTENTION
is encountered on the
apparatus,
to avoid reducing
safety of the apparatus
WARNING!
Avoid looking into the light path
[E
BODY FLOATING: isolated from earth. Maximum Pa-
Type BF
tient Leakage Current under: Normal Condition
~
100 µA, Single Fault Condition
~
500 µA
Hazardous voltage
Indicates high voltage storage capacitors which can
~
remain charged when the instrument is disconnected
from mains supply
I
On
Power is "On" when the power switch is set to the upper
position. When set to
"Off",
the AC mains supply is
0
Off
internally disconnected
/'-..../
Alternating Current
Indicates instruments should be powered from an AC
mains supply only
' < r
Potential Equalization
Safety connector for coupling to external equipment.
Conductor
Ensures that all equipment have the same chassis po-
tential
[g]
Class II Equipment
Double insulation
T00344GBO

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