User
Guide
for
Axoclamp
900A
Changing
the
Fuse
The
Axoclamp
900A
uses
a
2
A,
250
V
slow
acting
5
×
20
mm
fuse.
Before
changing
the
fuse
investigate
the
reason
for
its
failure.
To
change
the
fuse:
1.
Disconnect
the
power
cord.
2.
Use
a
screwdriver
or
a
similar
device
to
rotate
the
fuse
holder
counterclockwise.
3.
Replace
the
fuse
with
another
fuse
of
the
same
rating.
4.
Reconnect
the
power
cord.
Glitches
The
Axoclamp
900A
has
been
designed
to
minimize
the
effects
of
power
‐
supply
transients
(glitches).
Although
normally
inconsequential,
glitches
could
cause
transients
to
appear
on
the
voltage
and
current
outputs
that
may
corrupt
high
‐
sensitivity
recordings.
The
most
effective
way
to
gain
immunity
from
mains
glitches
is
to
eliminate
them
at
the
source.
Most
glitches
are
due
to
the
on/off
switching
of
other
equipment
and
lights
on
the
same
power
‐
supply
circuit.
Precautions
to
be
taken
include:
1.
Avoid
switching
equipment
and
lights
on
or
off
while
recordings
are
being
made.
2.
Water
baths,
heaters,
coolers,
etc.
should
operate
from
zero
‐
crossing
relays.
3.
Radio
Frequency
Interference
filters
should
be
installed
in
glitch
‐
producing
equipment.
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