Electrodes related categories
 | Tinker & Rasor Spring Electrodes
The Tinker & Rasor Full-Circle and the Half-Circle Rolling Spring Electrodes are manufactured from square cut, high quality stainless steel wire, coiled into 1 1/4 inch diameter coils. These square cut wire electrode springs are tightly controlled for longitudinal stretch so their own weight does not cause air gaps between each coil or sagging when in a properly applied inspection position. Electrode couplings are pre packed with high grade lubricant to insure long lasting, free-wheeling of the electrode on the pipe under the most adverse conditions.
The Half-Circle solid steel support brackets are cadmium plated to help prevent corrosion. The flexibility of Coil Spring Electrodes allows intimate contact between the electrode and the coated surface. These precision made inspection tools are designed to work in conjunction with Tinker & Rasor High Voltage Holiday Detectors in applying high voltage to the protective coated surface of the pipe for detection of holidays. |
 | Ceramic Reference Electrodes
Permanent Ceramic Reference Electrodes underground and concrete encased applications (space-age porous ceramic). In Use at GMC Corrosion Since 1984. Quality You Can Trust. |
 | High Chloride Water Reference Electrode
- Size : 1′′ x 8′′ long ABS plastic high impact blue tube.
- Contact Plug : 1′′ diameter porous ceramic.
- Lead Wire : 50′ of #14 RHH-RHW black or blue wire.
- Stability : ±5 millivolts with 3.0 microamp load.
- Temperature Range : 32°F to 150°F
- Service Life : 20 years
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 | Permanent Thru-Wall Electrode
The GMC STAPERM™ thru-hull mounting assembly is designed to provide easy installation of special submersible STAPERM™ reference electrodes. Each electrode comes complete with a test lead junction box, electrode sealing system and 3/4′′ NPT threaded fitting for mounting directly through the structure wall. The electrode can be readily removed and reinstalled from the exterior of the vessel (not under pressure). Quality You Can Trust. |
 | Deep SaltWater Reference Electrode
Permanent/portable, highly stable, deep-water silver - silver chloride reference electrode for use in salt water or saline water conditions: offshore platforms - offshore drilling rigs - offshore pipelines seawater docks - steel sheet pile.
In Use Since 1984 - Quality You Can Trust |
 | Portable SaltWater Reference Electrode
Portable silver - silver chloride reference electrodes for use in - brackish water - river mouths - estuaries - sea water - high chloride waters.
Quality You Can Trust |
 | Model IT - Transportable Immersion Electrode
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 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 contaminated with oil. All units have antifreeze protection in the gel so that they will not be damaged if exposed to temperatures down to -35ºF. |
 | Model US - Slimline Underground Electrode
The Model US is designed for installation in a small (2′′) diameter hole. It is ideal for retrofit through asphalt or concrete where it is difficult or costly to drill a large diameter hole. This electrode can be used between storage tanks at service stations or between the primary and secondary containment of an above-ground storage tank. Also, the Model US weighs far less than the industry standard bagged electrode, which reduces shipping costs where this is a consideration. |
 | Model UR - Regular Underground Electrode
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 those situations where there is limited access, the EDI Model US 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. |
 | Model UL - Longlife Underground Electrode
The Model UL is designed for long-term permanent use 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 those situations where there is limited access, the EDI Model US 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. |
 | Model IP - Pipe Type Immersion Electrode
The Model IP is a compact, economical, dry-type reference electrode for marine applications. It has a 0.840 inch diameter PVC bushing on the termination end. This enables the user to cement on any 1/2 inch socket-end PVC pipe or electrical conduit fitting (e.g. male or female conduit thread or couplings) for permanent installation. Examples of this are shown on EDI Drawing PIPAPP2, where 1/2 inch PVC couplings serve as transition pieces for running the lead wire through conduit or attaching the electrode to a wall. For intermittent use, the Model IP has a blind 1/4-20 hole for attaching up to a 5 lb weight. Should more weight than that be necessary, the electrode and the weight should be attached to a separate drop line. |
 | Model IR - Regular Immersion Electrode
The Model IR is designed for long term installation in an aqueous environment. It can be directly suspended by its lead wire or securely attached to a steel structure with the optional magnetic mount. Antifreeze protection is also available for those situations where the electrode may be exposed to temperatures down to -70ºF. |
 | Model T - Tube Sheet Mounted Electrode
Cathodic protection applied to a waterbox can cause a non-uniform potential distribution to exist over the face of the tube sheet. These potential gradients cannot be detected by a remotely mounted reference electrode. Excessively electronegative potentials can result in hydrogen damage on titanium and ferritic stainless steel tubes while excessively electropositive potentials mean inadequate protection of the tube sheet. Model T references are the only means to verify that the actual potential at the tube sheet surface is within the acceptable range. |
 | Model FE - Through Wall Extreme Environment Electrode
The Model FE is designed to operate in extreme environments with high temperatures, high pressures and/or contaminated electrolytes where ordinary reference electrodes cannot survive. A permanent bridge is installed at each location where potential readings are desired. The reference element is contained in a separate housing which isolates it from the aggressive environment; this substantially increases its service life. When continuous readings arc required, the reference is threaded into the bridge. For intermittent readings, the reference is simply pressed into the bridge. This allows a single reference to be used with several bridges. |
 | Copper Sulfate Electrodes
The MCM Line of Electrodes
All copper sulphate electrodes are shipped dry but include a charge of high-purity copper sulphate crystals. A protective cap for the CPT porous plug is also supplied. Special lengths of RE-5, RE-5C and RE-7 are available on special order. Use and Maintenance Instructions are furnished with each electrode. |
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