Campbell Wintersense SDI-12, Product Manual

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Solution:
1. Verify the Wintersense SDI-12 is wired correctly. See Table 7-1 (p. 8).
NOTE:
Connect the power wire to the data logger 12V terminal and not the SW12 terminal.
2.
Verify the power to the Wintersense SDI-12 is in the appropriate range (6 to 18 VDC).
3.
Verify the correct SDI-12 address is being used when communicating with the Wintersense
SDI-12. Use the transparent mode to verify the data logger can communicate with the it.
For additional information, refer to SDI-12 transparent mode (p. 34).
For more information refer to: www.campbellsci.
eu
/videos/sdi12-sensors-transparent-
mode and www.campbellsci.
eu
/videos/sdi12-sensors-watch-or-sniffer-mode .
Symptom:
Measurement values are inconsistent or erratic.
Solution:
1. Verify that the sensor angle has not changed.
2. Check that obstructions, such as vehicles, are not in the field of view.
Symptom:
Temperature and relative humidity measurement values are -99.999.
Solution:
1. Check the sensor element is properly plugged in, with the correct orientation. See Replace
the temperature and humidity element (p. 18) for more information.
2. Check for water under the sensor element connector and ensure there is no corrosion of
the sensor pins or the socket.
3. Replace the element. See Replace the temperature and humidity element (p. 18) for more
information.
4. If the above do not resolve the issue, the Wintersense SDI-12 requires factory repair. See
Assistance for more information.
Symptom:
Any other measurement value is -99.999.
Solution:
1. Wintersense SDI-12 requires factory repair. See A
bout this manual
page for more information.
Wintersense SDI-12 25