_____________________________________________________________________________________ Solid Applied Technology Ltd www.SolidAT.com 40, Hutzot Hayozer St. Ashkelon 78170, Israel [email protected] Tel: (972-8)6744051 1 Fax: (972-8)6744032 Installation of GaugerGSM systems within sewers 1. Components 1.1 GaugerGSM 1.2 Mechanical arm 1.3 Battery pack 1.4 Programmable Timer Switch (PTS) 1.5 Cables 2. Arm types The arm should hold the sensor at a fixed and robust location. The arm should also allow fine placement of the sensor right above the sewage pipe/tunnel. Arms may be of fixed length or of stretchable length. The arms may also have a rotating horizontal swivel option. The swivel option is required in cases where the sewer manhole is narrow and an upright fixed arm prevents human entry into the sewer. The arm should be produced from non-corrosive material such as stainless steel.

_____________________________________________________________________________________ Solid Applied Technology Ltd www.SolidAT.com 40, Hutzot Hayozer St. Ashkelon 78170, Israel [email protected] Tel: (972-8)6744051 2 Fax: (972-8)6744032 2. Vertical placement of sensor 2.1 Sewage monitoring applications GaugerGSM should be located as close as practical to the measured sewage level but preferably 15cm above the highest expected sewage level. Preferably, the beam angle (see picture below) should be 15 or more. 2.2 Overflow alert applications GaugerGSM should be located as high as possible below the...

_____________________________________________________________________________________ Solid Applied Technology Ltd www.SolidAT.com 40, Hutzot Hayozer St. Ashkelon 78170, Israel [email protected] Tel: (972-8)6744051 3 Fax: (972-8)6744032 The battery pack may be installed on the arm, on the side ladder or on a dedicated shelf. 3. Horizontal placement of sensor The sensor should be located right above the middle of the sewer internal pipe or tunnel. For sewer junctions, the sensor should be located right on top of the widest sewage cross section. Avoid placing the sensor above torrents or wavy waters...

_____________________________________________________________________________________ Solid Applied Technology Ltd www.SolidAT.com 40, Hutzot Hayozer St. Ashkelon 78170, Israel [email protected] Tel: (972-8)6744051 4 Fax: (972-8)6744032 4.2 Connect the arm 4.3 Prepare, or pre-order from the SolidAT, cables of the correct length for the connection between the battery pack, PTS and GaugerGSM. Make sure that the battery pack cable is long enough to allow pulling out the battery pack out of the manhole for battery replacement. 4.4 Cables should be treated to against mice and similar creature. Treatment...