Campbell Scientific Sentek EnviroSCAN Access Tube Installation Guide - Manual (Page 46)

Installing EnviroSCAN, EnviroSM ART & Diviner 2000 access tubes
© Sent ek Pt y Lt d Page 43
Step 5 – Chip off excess slurry
To tidy up around the access tube you may need to do one of the following:
• Take a spatula or broad knife and remove the excess dried slurry from the soil surface. A fine
white ring around the access tube, bridging the gap between the access tube and soil should
be visible.
• If the slurry has settled and formed a depression in the soil, make up a small quantity of slurry
and fill any depressions back up to the level of the natural soil surface and leave it to dry, then
chip away any excess.
Step 6 – Installing the top cap
1. Make sure the 4 cm (1.6 inches) of access tube protruding out of the soil is clean on both
sides.
2. Take a silicone gun with a new nozzle and apply three rings of silicone around the outside of
the access tube about 1 cm (0.4 inch) below the top rim of the tube.
3. Unscrew the top cap from the base of the top cap assembly. For EnviroSCAN and
EnviroSMART installations, feed the cable through the FairRite bead and then through the
cable gland into the top cap.
4. Take the access tube top cap base and push it onto the top of the access tube with a slight
forward and backward rotating motion until the bottom foot of the access tube touches the
soil surface. This will distribute the silicone evenly. Note: For EnviroSCAN and
EnviroSMART applications, ensure that the cable gland is facing the direction that the cable
is to be laid.
5. Wipe off any excess silicone from the inside of the access tube.