BLACK STAR METEOR 100 - Calibration; Guarantee Information

CALIBRATION
For
optimum
accuracy,
the instrument
requires
calibration
from
time
to
time.
How frequently
will
depend
on the
user
and
application
but
once
every twelve
months
would
normally
be
adequate.
provision
for
this is
made
on the front
panel.
Use of
a nylon
trimmer
tool is
recommended.
lf
a
screwdriver
is
used, it
MUST
be insulated
from
the front
panel,
as a short
circuit
from
the trimmer
to
ground
will
cause
damage.
The most
convenient
accurate
frequency
reference
is
usually
a
precise
transmitted
carrier
wave.
In the
U.K., Rugby
(60kHz)
and
Droitwich
(currently
200kHz,
changing
to 198kHz
in
1986)
are suitable
trans-
missions.
'off-Air'
frequency
standard
receivers
for
this
purpose
are com-
mercially
available.
GUARANTEE
For
guarantee
details
please
refer
to
separate
card inserted
in
this manual.