Maintenance - Endress+Hauser Hart RN221N Manual Del Usuario

Complete DIP switch assignment
Fig. 4: Overview of DIP switches
'Reset relay' control input:
If an event in the measuring arrangement activates the relay and the red LED,
the status is saved in RN221N when the event has ceased. By jumpering the
two terminals, e.g. reset switch, the message is acknowledged, the red LED
switched off and the relay deactivated, as soon as the device connected no
longer transmits an error status.
If the terminals are permanently jumpered, e.g. wire jumper, the event mes-
sage is acknowledged automatically.

7 Maintenance

No special maintenance work is needed on the device.
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