The IQ®4 Hand/Off/Auto (HOA) modules make it
possible to override plant quickly and easily when manual intervention is
required for whatever reason i.e. maintenance or repair of plant. The HOA
modules have been designed for ease of use, as David Field, product manager at
“It’s vital that the person on hand at a facility is able to
quickly and easily override the system at any time of day or night, and there
needs to be a clear visual indication of status too. We’ve developed a system
whereby no specialist tools are required and it’s as simple as possible to operate.”
The HOA modules deliver a number of simplified operational
No tools are required, simply twist the knob and
push the button
A controls engineer can preset all knobs to site
requirements for easy override in an emergency
A label system means all knobs are clearly identified
Visual indication with a flashing red light to
denote the system is in override
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