Sulphur Protection

VCI Emitters
VCI (Vapor Corrosion
Inhibitor) Emitters

Many industrial environments have invisible airborne substances, like dust and moisture, that can damage electronic equipment. There are other less common substances that are found in specific industrial environments that can be even more damaging. Sulphur is one of those substances.  Airborne sulphur uses moisture in the air and is corrosive to the copper and silver commonly found in the conductive traces on circuit boards, in LCD circuits and resistive touch screens.  All of these components are found in the construction of an industrial lcd monitor.

A typical industrial monitor or industrial touch screen is not designed to resist the damage that can be caused by sulphur in the environment.  Without protection, most resistive touch screens will fail in as little as one year.  Most LCD circuits will begin to breakdown in less than two years causing non-responsive thin vertical lines in the picture.  Since most industrial monitors only come with a one year warranty, there will be no help coming from the manufacturer when these failures occur.

How does Hope Industrial Systems protect monitors against sulphur damage?

Hope Industrial Systems is pleased to announce that after 8 years of testing in multiple factory environments, we are now offering a field-proven solution for industrial monitors in sulphur environments. Hope Industrial Systems is in our 16th year of providing high-quality, robust industrial monitors into some of the harshest factory environments imaginable. For customers who may expose displays to sulphur, we offer special monitor models that incorporate the following features:

    • Glass-Armored Resistive Touch Screen – Custom touch screen which employs the same resistive-touch technology as our standard monitors. With the Armored screen, a micro-thin sheet of glass is laminated to the polyester top sheet. This glass layer creates a more uniform barrier against sulphur entrance.
    • Vapor-Phase Corrosion Inhibitor Emitter – This small device emits a continuous flow of vapor, which forms a protective coating on all metal surfaces. This coating adheres to the metal and connections inside the monitor, and provides long-term protection against corrosion by sulphur compounds and a host of other adverse conditions.
    • Touch screen permanently sealed to monitor bezel using epoxy – As we studied the effects of sulphur compounds damaging touch screens, we observed that sulphur gas had a propensity to enter into the touch screen through the seal between the screen and the monitor enclosure. This solution involves using epoxy to attach the touch screen to the monitor to the bezel, creating a polymeric barrier which helps keep sulphur out.

What if a monitor still succumbs to sulphur damage?

The presence of sulphur compounds in the environment can wreak havoc on electronics, and there are a host of ways in which it could find its way into an enclosure. Most monitor manufacturers, including Hope Industrial Systems, exclude damage caused by sulphur from their standard warranties. Because of this, Hope Industrial Systems now offers a special 5-year warranty that adds sulphur damage to our warranty, for our sulphur-protected monitors. This warranty costs $100.00.


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