Campbell Scientific CS470/CS471 Compact Bubbler System User Manual
Page 28
CS470/CS471 Compact Bubbler System
Any error states arising can be displayed as follows:
Press pump membrane button briefly (< 1 sec). The LED lights
once for a longer period as confirmation, then pauses. 1
st
error
state arising, then pause. 2
nd
error state arising, then pause. LED
lights continue until all error states arising have flashed. The
CS470/CS471 repeats all error states arising for approximately
two minutes.
The most common causes for erroneous data include:
•
poor sensor connections to the datalogger
•
damaged cables
•
damaged transducers
Problem:
Unit will not respond when attempting serial communications.
Suggestion:
Check the power and signal lines to ensure proper connection to the datalogger.
Check the datalogger program to ensure that the same port the SDI-12 data line
is connected to is specified in the measurement instruction.
NOTE
18
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