6.6.8 CS650-LC or CS655-LC soil water content sensorplus (optional)The CS650-LC and CS655-LC are multi-parameter smart sensors that use innovative techniques tomonitor soil volumetric water content, bulk electrical conductivity, and temperature.NOTE:Campbell Scientific recommends routing the cable of the optional soil sensors in conduit,especially if the soil is rocky or rodents are present. The cables for these sensors do NOT havean armored outer jacket. The jacket is waterproof but NOT cut proof.1. Bury the conduit from the weather station to the soil measurement site.2. Route the sensor cable through the conduit.3. Bury the end of the sensor so it is in contact with the soil surface to be measured. Seesensor manual for complete instructions.4. Plug the cable into the SDI-12 connector on the enclosure. Ensure that the plug iscompletely seated on the connector and the locking ring is turned a quarter revolutionclockwise.6.6.9 Sensor connectionsEach sensor cable plug attaches to a unique bulkhead connector (FIGURE 6-3 (p. 16) and FIGURE6-21 (p. 35)). The labelling of the sensor cables match the labelling on the back of the enclosure.For more information, refer to Sensor schematics (p. 76).CAUTION:Each plug must be completely seated on to the connector and the locking ring turned aquarter revolution clockwise. Failure to seat the plug completely could cause corrosion andwater damage to both the enclosure and the cable.NOTE:Notice how the sensor caps are slid between the connector and the one above in FIGURE6-21 (p. 35). This will keep the caps out of the way of the connector cover.Section 6. Installation 34
