Keysight 9000 Series Service Manual page 129

Safety
Notices
This apparatus has been
designed and tested in accor-
dance with IEC Publication
EN 61010-1:2001, Safety
Requirements for Measuring
Apparatus, and has been sup-
plied in a safe condition. This
is a Safety Class I instrument
(provided with terminal for
protective earthing). Before
applying power, verify that the
correct safety precautions are
taken (see the following warn-
ings). In addition, note the
external markings on the
instrument that are described
under "Safety Symbols".
Warnings
• Before turning on the instru-
ment, you must connect the
protective earth terminal of
the instrument to the protec-
tive conductor of the (mains)
power cord. The mains plug
shall only be inserted in a
socket outlet provided with a
protective earth contact. You
must not negate the protective
action by using an extension
cord (power cable) without a
protective conductor (ground-
ing). Grounding one conduc-
tor of a two-conductor outlet is
not sufficient protection.
• Only fuses with the required
rated current, voltage, and
specified type (normal blow,
time delay, etc.) should be
used. Do not use repaired fuses
or short-circuited fuseholders.
To do so could cause a shock
or fire hazard.
• Danger of explosion if bat-
tery is incorrectly replaced.
Replace only with the same or
equivalent type recom-
mended. Discard used batter-
ies according to
manufacturer's instructions.
• If you energize this instru-
ment by an auto transformer
(for voltage reduction or
mains isolation), the common
terminal must be connected to
the earth terminal of the
power source.
• Whenever it is likely that the
ground protection is impaired,
you must make the instru-
ment inoperative and secure it
against any unintended opera-
tion.
• Service instructions are for
trained service personnel. To
avoid dangerous electric
shock, do not perform any ser-
vice unless qualified to do so.
Do not attempt internal ser-
vice or adjustment unless
another person, capable of
rendering first aid and resusci-
tation, is present.
• Do not install substitute parts
or perform any unauthorized
modification to the instru-
ment.
• For continued protection
against fire hazard, replace
fuse, circuit breakers only with
the same type and ratings. The
use of other fuses, circuit
breakers, or materials is pro-
hibited.
• Capacitors inside the instru-
ment may retain a charge even
if the instrument is discon-
nected from its source of sup-
ply.
• Do not operate the instru-
ment in the presence of flam-
mable gasses or fumes.
Operation of any electrical
instrument in such an environ-
ment constitutes a definite
safety hazard.
• Do not use the instrument in
a manner not specified by the
manufacturer.
To clean the instrument
If the instrument requires
cleaning: (1) Remove power
from the instrument. (2) Clean
the external surfaces of the
instrument with a soft cloth
dampened with a mixture of
mild detergent and water. (3)
Make sure that the instru-
ment is completely dry before
reconnecting it to a power
source.
Safety Symbols
!
Instruction manual symbol:
the product is marked with
this symbol when it is neces-
sary for you to refer to the
instruction manual in order to
protect against damage to the
product.
Hazardous voltage symbol.
Earth terminal symbol: Used
to indicate a circuit common
connected to grounded chassis.
129