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Each Current Shunt produces 0.8 volts output for an input at nominal
operating current. The highest current shunts (10 A and above) get warm
when operating at full current. The 50 A and 100 A shunts may become
uncomfortable to touch; their operating temperature can be as high as
70 ºC (158 ºF).
General Maintenance/Cleaning
For General Cleaning, wipe the Carrying Case and Current Shunts with a damp
cloth and mild detergent. Do not use abrasives, isopropyl alcohol, or solvents.
To prevent damage to the instrument:
•
Do not use aromatic hydrocarbons or chlorinated solvents
for cleaning the Current Shunts.
•
Do not spray liquid on or immerse the Current Shunts.
Other than calibration, the only maintenance the Current Shunts require is
inspection of the input and output connectors for wear or damage. The LC-type
input connectors of the 50 A and 100 A shunts are robust, but the N-type
connectors on the medium and small shunts are easily damaged by misuse or
mating with out-of-tolerance N-type male connectors. The center pins of male N-
type connectors are prone to moving, particularly when assembled onto cables. If
a center pin on an N-type connector protrudes too much, the female connector
on the shunt will be damaged by splaying the inner connector. If there is any
doubt about connector condition, gauge the connectors (see MIL-C-39012 for
details). Defective connectors can be replaced but it is recommended the work
be performed at a Fluke Calibration Service Center.
Operating Information
This section of the manual contains practical information the user needs to know
before and after making a current measurement. The material is intended to help
the user make high quality precision measurements.
Feature Descriptions
The features and connectors of the Current Shunts are shown in Figure 2 and
described in Table 3.
Note
Caution
W
Precision AC Current Shunt Set
Operating Information
11
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