IEPE-Link
™
-LXRS
®
Wireless Sensor Node
User Manual
Safety Information
61
10.2
User Configurable Power Settings
The IEPE-Link
™
-LXRS
®
Wireless Sensor Node can be powered by either the internal battery
or an external source. There is user-accessible switch to select the source. The default setting
for this switch is for internal battery operation and charging.
See Selecting the Power Source
Connecting an external power source when the node is set to
internal power could result in injury or permanent node
damage. For details on how to adjust the switch setting
Connecting an External Power Supply on page 38
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If the node is set to use an external source and the charging power supply is plugged
in, it will power the node from the power supply and not charge the battery. It will
continue to use the internal battery.
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If the node is set to internal, and an external power supply other than the one used for
charging is plugged in, several things could happen. If it is a power supply that is in
the operating range of the charging circuit, it may charge the battery. If it is below the
range of the charging circuit, nothing will happen. If the applied voltage is above the
range of the charging circuit, damage to the node will likely occur and personal injury
may result.
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When under battery operation there is a limit to how much current the node can
provide to sensors. If the node is in an over current condition it will shut off until the
cause is removed. Using an external power source for the node or sensor can
mitigate this issue.