RM4200 Series User Guide
Configuration
42
If the test coupon relay (
Test Cpn
Relay
) is tripped due to an over-current condition, the relay goes into an
Open
state and displays in the
Relay States
pane as in alarm (gray bubble turns to red). Also, the test coupon’s
AC and DC current density readings will not display, and the AC and DC pipe-to-soil and instant off readings
display as
INVALID
in both Bullhorn Tools and the Bullhorn Web account.
Figure 3-24. Test Coupon Relay in Alarm and Associated Readings
The RM4210 then sends an alarm packet to the Bullhorn Web account. The RM4210 will attempt to
automatically reset the relay after 1 minute. If the automatic reset is unsuccessful, the relay will stay in alarm
state, and another over-current packet is sent to the Bullhorn Web account. If the over-current protection
triggers again within 10 minutes after the automatic reset, the test coupon relay will stay permanently open until
it is reset either with Bullhorn Tools or from an over-the-air command from the Bullhorn Web account. If this
reset is successful, the relay’s state returns to normal (gray bubble) and an alarm clear packet is sent. If it is
unsuccessful, the over-current condition may still be present and need additional action.
The packets that are sent to your Bullhorn Web account can be viewed on the
Unit Detail
page from any of these
sources:
•
Last Packet Type
field in left pane