BRUEL & KJAER 1053 Instruction Manual page 4

SAFETY CONSIDERAT. I ONS
This apparatus has been designed and tested according to Class II of IEC Publication
348, Safety Requirements for Electronic Measuring Apparatus, 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:
APPLICATION OF POWER
Before each use of the apparatus, check that it is set to match the available mains
voltage and that the correct fuse is installed.
SAFETY SYMBOLS
&.
The apparatus will be marked with this symbol when it is important that the user
refer to the associated warning statements given in the Instruction Manual.
.1 Chassis terminal
.,!.
Safety earth terminal
~
Hazardous voltage
WARNINGS
Set all instruments to power off before connecting or disconnecting interface cables.
Whenever it is likely that the correct function or operating safety of the apparatus has
been impaired, the apparatus must be made inoperative and secured against unintended
operation.
Any adjustment, maintenance, and repair of the open apparatus under voltage must be
avoided as far as possible and, if unavoidable, must be carried out only by trained
service personnel.