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Characteristic
Sweep Modes
Sweep Time
Accuracy
Triggering
Internal
Trigger
Level
External
Trigger
Input
Level
Crt Readout
Battery-Powered
Memory
Battery
Life
At
+55"C
ture
Ambient
Tempera-
Tabte
2-5
GENERAL
CHARACTERISTICS
Table
2-6
POWER
REOUIREMENTS
Specification
-
494A1494Ap
Service,
Vol.
1
Information
Triggered,
auto,
and
single
sweep
manual,
external,
lNTernal,
EXTernal,
FREE
RUN.
and
LINE
EXTernal
is
ac-coupled
(1
5
Hz-1
MHz).
Maximum
external
trigger
input
is
50
V (dc
+
peak
ac).
Displays
all
parameters
listed
on
the
crt
bezel,
plus
help
and
operating
rnessages.
lnstrument
settings,
macros (pro-
grammable
instrument
only)
displays,
calibration
offsets,
and
peaking
codes
for
each
band
are
stored
in
battery-powered,
non-volatile
RAM.
1-2
years
At +25"C
ture
Ambient
Tempera-
sec-
Temperature
Range
for
Retaining
Data
Operating
(See
Option
39 in
the
Options
tion
for alternate
specification)
least
5
-1
5"C
to
+55oC
-30"C
to
+85"C
*.10"h
for
single marker
and isyo
for
delta
marker
Marker
time
available
only
in zero
span
Supplemenlal
Inf
ormation
47
lo
440 Hz
1 15
V nominal
230 V nominal
2 A Medium-Blow
At 115
V
and
60 Hz
3.5 mA maximum
Non-Operating
Marker
Time
Measurement
Accuracy
(in
zero
span
mode)
Characteristic
Line
Voltage
Range
Line
Fuse
115
V Nominal
230
V Nominat
Input Power
Leakage
Current
47Hz-63Hz
4A
Perf
orman
ce
Requirement
20
ps/Div-S
s/Div
in
'l
-2-5
sequence
!],,.9
s/Div
avaitable
in
AUTO)
*57o
over
center
I divisions
2
divisions
or
more of
signal
1.0
V
peak,
minimum
90 V.^
to 132
V
180
V,^
to 250
V
210
W
maximum
(3.2
A)
63 Hz
-
440
Hz
5
mA maximum
2-15