Keysight Technologies 1130B Series, Руководство пользователя, Страница: 24 / 234

24 1130B-Series Probes User’s Guide
1
Getting Started
N2880A InfiniiMax In-Line Attenuator Kit
The in-line attenuators are an accessory for probes. The maximum input range of
the 1130B probes are 5 V
p-p
. If you need to measure larger signals, the probe’s
design allows you to add the N2880A InfiniiMax in-line attenuators between the
probe head and probe amplifier to increase the maximum input range (as listed in
Table 6 on page 25). Additionally, these attenuators enable you to increase the
offset range of the probe as specified in Table 6 on page 25. When using the
N2880A In-Line Attenuators, the bandwidth and rise time of your probing system
is not affected. There is, however, a trade-off in noise (refer to Table 6 ) and in the
accuracy of DC offset relative to the input.
The N2880A provides a pair of 6 dB, 12 dB, and 20 dB attenuators. The
attenuators come as matched pairs and should only be used with each other. Each
attenuator has a serial number. The pair of matching attenuators in each set will
have the same four digit numeric prefix and will differ by the last letter (one
attenuator in the matched pair will be labeled A and the other will be labeled B).
Figure 13 Placement of Attenuators Between Probe Amplifier and Head
CAUTION
Prevent abrasion and tears in the cable’s jacket, do not rest the extension cables on
any metal objects or objects with sharp edges.
CAUTION
Do not kink the cables. The cables are designed to be flexible, but are not designed to
be bent sharply.
NOTE
Keep your extreme temperature testing probes separate from the probes they use under
milder conditions. This is because cycling probe heads through extreme temperature ranges
has a marked affect on their lifetimes as listed in Table 5 . Only the lifetime of the probe head
is affected by temperature cycling. The extension cables and probe amplifier should not need
to be replaced with extended temperature cycling.
NOTE
Discoloration or texture changes are possible with the extension cables. These changes do
not, however, affect the performance or the quality of a measurement.