Installing the 100W/100W+ and 100WP/100WP+ ERT Module
-0909-006 100W/100W+ and 100WP/100WP+ Datalogging Water ERT Module Installation Guide 17
Proprietary and Confidential
5. Drive the rod into the ground so the top of the rod is approximately 3-1/2 inches below the bottom of the
pit lid.
• If you cannot drive the rod in enough to equal the necessary spacing, cut the remaining rod length to
the proper height using an abrasive cut-off tool.
Caution Cutting fiberglass creates dust particles. Practice proper safety precautions when using cut-off
tools to prevent exposure to fiberglass dust particles.
• If the rod is the correct depth but remains loose in the soil, replace the rod with a longer version.
6. The top of the rod must be 3-1/2 inches below the bottom of the lid. Place the ERT module on the rod.
Completely insert the rod into the ERT module's rod mount hole. Do not force the ERT module onto the
rod. If the ERT module does not slide freely on the rod, remove the ERT module and examine the ERT
module rod hole and rod for burrs or obstructions. You may secure the ERT module to the rod with a self-
drilling screw through the hole in the top of the ERT module's rod mount cavity. The screw mounting hole
is shown in the following product image.
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