Tektronix 2247A

4
ms
Performance Characteristics
Introduction
Electrical
characteristics
In
Table
6-1
apply
when
the
2247A
has
been
call-
brated
at
an
amblent
temperature
between
+20°C
and
+30°C,
has
warmed
up
at
least
20
minutes,
and
Is
operating
In
an
ambient
temperature
between
-10°C
and
+55°C
(unless
otherwise
noted).
Specifications
for
non-counter/timer
functions
with
digital
readout
are
valld
only
when
the
ambient
temperature
Is
within
+10°C
of
the
temperature
at
the
time
of
the
last
SELF
CAL.
For
maximum
performance,
a
recent
SELF
CAL
Is
recommended.
Items
listed
In
the
“Performance
Requirements”
column
are
veriflable
quali-
tative
or
quantitative
Ilmits
that
define
the
measurement
capabilities
of
the
instrument.
Environmental
Specifications
of
the
2247A
are
In
Table
6-2,
and
Mechanical
Specifications
are
In
Table
6-3.
Recommended Calibration Schedule
To
ensure
accurate
measurements,
check
the
performance
of
this
Instru-
ment
every
2000
hours
of
operation
(once
each
year
if
used
infrequently)
.
When
components
are
replaced,
affected
circuits
may
have
to
be
readjusted.
2247A Operators . 6-1