Problem Probable Cause Remedy
Precipitation output is
invalid. The USB interface
is connected.
The active USB interface
suspends the output of
intensity, accumulated
precipitation amount, and
impulses.
Disconnect the USB interface.
– Using the sensor's operating software, run a guided
accuracy test.
Hardware failure. Replace the sensor.
Precipitation output is
invalid. The USB interface
is not connected.
Hardware failure. Replace the sensor.
6.10 Troubleshooting Power Supply
Table 37 Problem Situations and Remedies with Power Supply
Problem Probable Cause Remedy
Power supply LED is not on. AC power is missing or AC power
supply is defective.
Check that AC (mains) power is
connected and that the AC power
connectors are properly attached.
Replace AC power supply if
needed.
System appears completely down
when powered on DC input.
DC power supply is missing. Check that DC power is connected.
System shuts down immediately
when external power supply is cut
o. Battery backup does not work.
Battery circuit is open. Check the battery wiring.
Battery fuse is o. Check that the battery fuse is on.
Battery backup time is too short. Backup batteries are defective. Check the batteries and replace if
needed.
Chapter 6 – Troubleshooting
137
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