User's Guide

Installing the 100W and 100WP ERT Module
TDC-0909-003 100W and 100WP Datalogging ERT Module Installation Guide 16
Proprietary and Confidential
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.
7. Installation is complete when the ERT module is perpendicular to the underside of the lid. The ERT
module must not contact the pit structure or lid.
Caution Verify the pit lid does not touch the ERT module when the lid is replaced. There must be a 1 to
2-inch space between the top of the ERT module and the bottom of the pit lid. If the ERT module is
installed too high, too low, or is touching any of the surrounding surfaces, adjust as necessary.