5790B
Operators Manual
4-26
Connect an A40B
Use the Fluke A40B Current Shunts only with INPUT 1 via an N-type coaxial
cable or INPUT 2 via standard terminal plugs.
Fluke Calibration offers two cables with different terminations to accommodate
the various application needs.
• The A40B-LEAD/N (PN 3275938) is an N-type coaxial cable that connects
the shunt output voltage connector to INPUT 1.
• The A40B-LEAD/4MM (PN 3275923) is a standard dual terminal plug that
connects the shunt output voltage connector to INPUT 2. For more
information on the connection types and frequently asked shunt questions,
see A40B Precision Current Shunts, Answers to Frequently Asked Questions
located on www.flukecal.com.
Warning
To prevent measurement errors that could lead to personal
injury or equipment damage, do not use the AUX input with
A40B current shunts or custom shunts. Measurement errors
will be present due to the built-in 90 Ω AUX input resistor.
A40B
A40B-lead/N (PN 3275938)
A40B-lead/4MM (PN 3275923)
5790B
INPUT 1
10 MΩ
INPUT2
Type
N
UHF
A40B
Voltage
Output
MM
FF
UHF
UHF
UHF
M
F
F
F
hvi037.eps
Figure 4-3. Measuring Absolute Current Using A40B
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