User's Manual

User Guide
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User Guide, WherePort IV D1300 REV A
© Copyright WhereNet, Corp. 2008 WhereNet Confidential
Figure 20 Magnetic Field Meter
7.9. The Field Meter
The field meter is a WhereTag connected to a voltage meter so that it can detect and display the strength
of the WherePort IV field (Figure 20). By walking around an installed WherePort IV the strength of the
signal throughout the area to be monitored can be measured. The tag can be positioned to match its
mounting position on the tracked asset. Experimenting with the field meter can help to clarify the
coverage area of the WherePort IV.
After the installation of WherePort IVs at a facility, the field meter is used to test that the field coverage
is as it was planned to be. If gaps or problems with the coverage are found they can be corrected before
the facility is put into operation. See the Magnetic Field Meter User’s Guide (P/N D0755).