Protective Earth (or Grounding)
Protection Class 1 - The instrument must
be
operated with a Protective Earth IGround connected via the Protective
EarthiGrounding conductor
of
the supply cable.
This
is
connected to the instrument before
the
line and neutral connections when the supply plug is inserted into the
socket
on
the
back
of
the instrument.
If
the final connection to the supply is made elsewhere, ensure that the ground
connection
is
made before line and neutral.
WARNING Any
interruption
of
the
protective
ground
conductor
inside
or
outside
the
instrument
is
likely
to
make the
instrument
dangerous. Intentional interruption is prohibited.
To
avoid electric shock the signal connections to the instrument should
be
connected after the ground connection is
made
and
disconnected before the ground connection is removed,
Le.
the supply lead
must
be
connected whenever
signalleads
are connected.
Do Not Operate without Covers
To
avoid electric shock
or
tire hazard, the instrument
must
not
be
operated with covers removed.
The
covers protect
the user from live parts
and
unless otherwise stated they should
be
removed only by suitably qualified personnel for
maintenance
and
repair purposes.
WARNING
&
Removing
the
covers may expose voltages
in
excess
of
1.5
kV pk; these may
be
present for
up
to
one
minute after the instrument has
been
disconnected from the powersource; longer
under
fault
conditions.
Safe Operating Conditions
The unitmust
be
operated only within the manufacturers specified operating conditions. Examples
of
specification that
must
he
considered are:
Ambient temperature
Ambient humidity
Power
supply voltage
and
frequency
Maximum
terminal voltages or currents
Altitude
Ambient pollution level
Exposure to shock and vibration
To avoid electric shock or fire hazard, do not apply ta or subject the instrument to any condition that is outside specified
range.
Please
refer
to
Appendix
A
of
this
manual
for
detailed
Specification
of
the
instrument
and
its
operating
conditions.
CAUTION
Direct sunlight, radiators
and
other
heat sources
should
be
taken
into
account when
assessing
the
ambient
temperature.
CAUTION
Before connectingtheinstrumentto the supply, ensure thatthe rear panelAC
supply
voltage
selector is
set
to
the
appropriate voltage, either115V
or
230V
and
that
correctly rated fuses
are fitted (see below)
Fuse Requirements
To avoid fire hazard the fuse arrangement shown
in
the table below must
be
followed. Additionally
the
supply network
must
he
fused
at
a maximum
of
16 A
and
in
the UK, a 5 A fuse should
be
fitted
in
the
power
cord
plug.
x
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