Doug,
The IS products that I have worked with in two different firms were blue in
color to distinguish them from the same product's non-IS version. That not
only differentiated the two but it gave the user some additional feeling of
comfort, or so they said. I'm not sure where the color started but I have seen
a lot of IS products in blue.
The only problem is when manufacturing runs out of the standard color parts for
the non-IS version and wants to use the blue for to make shipments of the
non-IS version. For some reason they never understood that the label itself
was not sufficient to distinguish IS from non-IS, especially when the customer
had become used to the blue for IS.
Good luck, - Steve Brody
"Massey, Doug C." wrote:
> Hello group -
>
> I have another question about equipment for use in hazardous locations. I
> find no requirements in any of the relevant standards regarding the proper
> colors of indicators (LED's). For instance, a red LED on a standard-use
> product could indicate something benign like "battery low" - but for people
> who work in HAZLOCs, does a red indicator mean "run like hell, it's gonna
> blow" ?
>
> Also, what would be an appropriate color for the enclosure ? Our product
> being a portable device, we want to make the intrinsically safe version
> easily distinguishable from our standard product line which would have the
> same shape, and there may be both at a facility. I'm thinking orange
> generally means "caution" to people.
>
> Thanks in advance for your input.
>
> Doug Massey
> Safety Approvals Engineer
> LXE, Inc.
> Norcross, GA., USA
> Ph. (770) 447-4224 x3607
> FAX (770) 447-6928
> e-mail: masse...@lxe.com
>
> Cruise our website at: http:\\www.lxe.com
>
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