Specification-2445A/2455A Service
Table 1-1
2445A-2455A Electrical Characteristics
Characteristics
Performance Requirements
VERTICAL DEFLECTION
SYSTEM-CHANNEL
1 AND CHANNEL 2
Deflection Factor
Range
2 mV /division to 5 V /division in a 1-2-5 sequence
of
11
steps.
Accuracy
1
þÿM©
input, noninverted.
+15°C
to
+35°C
On-Graticule Accuracy
Within ±
2%
at any
VOL
TS/DIV setting for a four
or
five-division
signal centered on the screen.
AV Accuracy (using cursors over entire
±(1.25%
of
reading
+0.03
div + signal aberrations).
graticule area)
-15°C
to
+15°C
and
+35°C
to
+55°C
Add ±
2%
of
reading.a
50
þÿ©Coupling
Add
± 1 %
of
reading.
CH
2 Inverted Add ± 1 %
of
reading.
AV Range
± 8 X VOL TS/DIV setting.a
V/DIV VARiable, noninverted Continuously variable between
VOL
TS/DIV settings. Extends
deflection factor
to
> 12.5 V /division.
Frequency Response Bandwidth is measured with a leveled,
low
distortion, þÿ50©source,
sine-wave generator, terminated in 50
þÿ©.
The reference signal
amplitude is set at the lesser
of
6 divisions
or
the maximum leveled
amplitude.
Bandwidth with probe Is checked using a probe-tip.to-GR (017-
0520-00) termination adapter.
Bandwidth with external termination is checked using a BNC 50
þÿ©
feed-through terminator (011-0049-01
).
-3
dB
Bandwidth Using standard accessory probe
or
internal þÿ50© termination.
2455A
+
15°C
to
+35°C
De
to
250 MHz.
-15°C
to
+15°C
and
+35°C
to
De
to
200 MHz.a
+55°C
2445A
De
to
150 MHz.
-4.
7
dB
Bandwidth
Using þÿ50© external termination on þÿ1M© input.
2455A
-15°C
to
+35°C
De
to
250 MHz.
+35°C
to
+55°C
De
to
200 MHz.
2445A
De
to
150 MHz.
€Performance requlrements not checked
In
manual.
1-2
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