Answer: VTI has partnered with Campbell Scientific, Inc. to provide network components beyond ECI corrosion monitors and NetCon-10 interface modules. Such components may include dataloggers and related software, cellular transceivers, and solar panels.
Optimally, one instrument should be used to monitor every 100 square feet. Structure managers may use a smaller number of instruments, however, by positioning these at locations that are especially prone to corrosion, such as areas where water or road salts accumulate. In this scenario, managers are urged to focus particularly on points that may be vulnerable to corrosion but will not be readily accessible to traditional probes after construction.
 Answer: No. The ECI enclosure is molded from GE VALOX plastic, which is highly chemical resistant. The instrument’s power and communications cable is comprised of three 22-gauge conductors, which are insulated with cross-linked Teflon, encased in a Teflon jacket. Teflon provides superior water and chemical resistance, and is highly resistant to abrasion.
No. Calibration and test data are provided for each ECI corrosion monitor at the time of delivery. The instrument requires no further calibration after installation. Integrated software automatically compensates for its calibration.
Answer: The ECI’s working electrode is a sacrificial component composed of black steel. It is designed to corrode at the same rate as the ASTM 615/A-compliant steel that it monitors. Defective areas in protective coatings over structural steel, such as epoxy or stainless steel cladding, may be expected to demonstrate corrosion characteristics comparable with those of black steel.
Answer: Installers mount the ECI within a structure by using four lengths of #3 rebar. They wire these rebar segments to the support members of the structure. In this way, the ECI becomes a permanent part of the structure once concrete is poured. Please note that the ECI is not in electrical contact with the structure.
Answer: Managers are urged to perform structural analysis to provide assurance on this point, and to optimize the trade-off between monitoring coverage and any impact on structural strength. For an example of such structural analysis, please click here.