©
National Instruments Corp.
5
cFP-AI-118
Install a tie wrap or other device to secure the ferrite in place, as
shown in Figure 4.
Figure 4.
Ferrite Installed on Signal Wires and Secured with Tie Wrap
Note
Figures 3 and 4 show signal wires connected to a
cFP-CB-
x
connector block, but the ferrite is required with
any connection method.
Input Ranges
The input ranges for voltage signals are 0–1 V, 0–5 V, 0–10 V,
0–15 V,
1 V,
5 V,
10 V, and
15 V. FieldPoint software
shows these input ranges with overranging. To prevent inaccurate
readings, choose an input range such that the signal you are
measuring does not exceed either end of the range.
Measurements on a channel may be invalid for up to two update
periods after you change the input range.
Overranging
The cFP-AI-118 has an overranging feature that measures 5%
beyond the nominal values of each range. For example, the actual
measurement limit of the
15 V range is
15.75 V. The
1
Ferrite
2
Tie Wrap
3
cFP-CB-
x Connector Block
2
1
3
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