Model IT - Permanent Portable Reference

Typical Application
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Housing Specifications
1 5/8 inch (4 cm) dia.x 6 inch (15 cm) long
1/4-20 threaded stud termination
Shipping weight -- 1/2 lb. (1/4 kg)
Model Designation
Specify as EDI Model IT-xxx-ST
xxx = Element type
Element Type
AGG - Saturated gelled Ag/AgCl
CUG - Saturated gelled Cu/CuSO4

Element Specifications
Design life - 20+ yrs
Shelf life - indefinite with end cap in place
Max. Temp. - +140F (60C)
Min. Temp. - +32F (0C)
      -35F (-36C) with optional antifreeze

Design Compatibility
The Model IT is designed to take potential readings in any application where a standard, liquid-junction portable reference electrode is presently being used. Because the Model IT contains a gel rather than a liquid, it will neither leak nor require any refilling or cleaning. The hardwood plug offers several advantages over the conventional ceramic membrane. It will not clog as readily, it is resistant to salt blockage, and it can be reworked by light sanding or cutting if it becomes contaminanted with oil. All units have antifreeze protection in the gel so that they will not be damaged if exposed to temperatures down to -35F (-36C).