9-Pin Serial PortComputer end Modem end4 205 73. Make sure the communication device at the computer is properly configured and cabled(Communication peripherals (p. 36)).4. Call Campbell Scientific if still no response.7.2.3 NAN, ±INF, or unreasonable results displayed in avariable or stored in a data table1. Make sure the battery voltage is between 9.6 and 16 VDC.2. Verify sensors are plugged into the correct sensor connector and the locking ring issecurely in place (see FIGURE 6-21 (p. 35)).3. Check connectors for any corrosion on pins.4. If Short Cut or VisualWeather is used to create the station program, double check thewiring diagram to see if it matches the physical wiring on the sensor connectors on theback of the enclosure.5. If CRBasic is used to create the station program, verify channel assignments and multipliers.Data logger program may need to be changed.6. Inspect the sensor for damage and/or contamination. If damaged, contact CampbellScientific for repair or purchase of a replacement sensor.7.2.4 WindSonic1-ET diagnostic codesThe WindSonic outputs a diagnostic code (Table 7-2 (p. 74)) with each wind direction and speedmeasurement. A data logger program can be written that filters out all data when the diagnosticis not 0. The programs can also report the number of good samples that were used in computingthe on-line statistics. If the total number of good samples is less than 98% of the expectedsamples, the WindSonic may be in need of repair.Table 7-2: WindSonic Diagnostic CodesDiagnostic Status Comment0 Okay All okay1 Axis 1 Failed Insufficient samples, possible path obstructionSection 7. Maintenance and troubleshooting 74