Model UR Data Sheet

Model UR - Underground Reference

Typical Application

Underground storage tanks, buried pipelines, structures below concrete flooring

Featuring

Industry standard 15 year design life
Proprietary backfill mix to retain moisture and minimize migration of contaminants from the surrounding soil
50 feet of #14 AWG HMW/PE lead wire is standard; other lengths available.

	Housing Specifications Size - 7 inch dia. x 16 inch long (18 cm x 40 cm long) Shipping weight - 25 lb (12 kg)
	Element Specifications Design life - 15 years Shelf life - 1 year minimum Stability - ± 5 mV
	Element Types AGG - saturated gelled Ag/AgCl CUG - saturated gelled Cu/CuSO₄
	Terminations SW - 50 feet (15 m) of #14 AWG HMW/PE LWnnn - nnn feet #14 AWG HMW/PE CWnnn - nnn feet of custom wire (#12 HMWPE is the largest size wire that can be used in this model)
	Model Designation Specify as EDI Model UR-xxx-yy xxx = Element type yy = Termination type

Design Compatability:
The Model UR is designed for permanent installation to obtain accurate potential measurements on buried structures. It is the best choice for those applications where easy installation is possible such as an open hole or trench. For a longer service life, the EDI Model UL or Model UL50 reference is recommended. A Cu/CuSO₄ element should be used in low chloride soils (<500 ppm) while a Ag/AgCl element is recommended for high chloride soil (>500 ppm) in order to obtain the longest possible life.