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User’s Guide
- 39 -
HOBO U30 Station/RC
C h a n g i n g t h e R e l a y C o n t a c t S e t t i n g
The HOBO U30 Station has a built-in relay that can be activated by an alarm. The relay is a latching relay
and it can be configured as either normally open or normally closed using HOBOware Pro. The factory-
default setting is deactivated (open).
Steps
To change the relay:
1.
From the Device menu, select Control Relay.
2.
Select Set Default (Deactivated) State.
3.
Select either Open or Closed.
Test
To conduct an immediate test of the relay:
1.
From the Device menu, select Control Relay.
2.
Select Activate (Close) Relay. You should hear a click in the HOBO U30 Station.
3.
Select Deactivate (Open) Relay. You should hear the click again.
4.
Use a digital multimeter to check for continuity to confirm that the relay is open and closed as
expected.
For details on configuring alarms in HOBOlink, see the HOBOlink Help.
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