Sentek probes are housed in permanently installed access tubes. These access tubes are installed into the ground using specialised installation tools and techniques to ensure minimal site disturbance and maintenance of site integrity. Correct installation requires good access tube to soil contact to avoid preferential path flow of water down the side of the tube.
Installing EnviroSCAN and Diviner 2000 Probes
The same access tubes and installation techniques are used for both EnviroSCAN and Diviner 2000 probes:
A metal cutting edge is fitted to the end of the access tube, and the tube is held in vertical position using a tripod.
A slightly undersized hole is drilled in small increments just ahead of the access tube, using an auger positioned through the tube.
The access tube is then hammered into the undersized hole, with the cutting edge shaving away the remainder of the soil, to provide a tight fit of the access tube into the soil, with minimal external compression.
Augering and hammering is alternated until the tube is fully inserted into the ground. The inside of the tube is then cleaned, dried and sealed at the bottom using a specially designed bottom stopper.
A top cap is glued in place to ensure that external moisture cannot enter the tube.
The access tube is then ready for insertion of the probe electronics.
Click here to download the EnviroSCAN and Diviner 2000 Installation Manual.
Installing EasyAG Probes
EasyAG probes are housed in special plastics that are pre-fitted with a cutting edge, bottom stopper and top cap. While using the same core principles of installation as for the EnviroSCAN probes, the slim-line design and short length of the probe, combined with the pre-assembled plastics, allow for quick and simple installation.
EasyAG access tubes are installed by:
Positioning a base plate to stabilise the access tube during installation
