This may seem somewhat obvious depending on your experience, however, I've had people ask and I thought it would make a great blog.
Let's start with what an industrial light tower is used for. The main use is to alert or grab the attention of an operator or supervisor to get them to respond to an issue on the line. They can also be used to show things are running well or that things are going to need attention very soon.
Here are the typical uses for each color:
Red Stack Light
Okay, I'm guessing most of us could guess red, yellow and green... but let's review it anyway.
Red generally means there is an event or condition that could cause a shut down. You are out of parts, there is a jam, an e-stop has been pushed, something happened.
Yellow Stack Light
Yep, you guessed it, this one is for a warning. We are almost out of parts, something has been interrupted, etc.
Green Stack Light
Stick with me. Yes, green means everything is running smoothly!
Blue Stack Light
Now we are getting to the colors I'm generally asked about. Blue is usually used as a request for maintenance or a supervisor. Blue can mean you are waiting for service or the work is caught up so the machine is paused.
Personally, this light just reminds me of the 'blue light special' for those of you that remember Kmart back in the day. Actually maybe they still have that?
Clear (White) Stack Light
This one can mean anything you want and usually used for something specific to your application. A completed cycle or batch, you are running within production parameters or any number of things.
Of course, you can also differentiate between a solid on or flashing color plus add audible alarms into the mix as well.
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We are authorized for Patlite light towers, Menics light towers, WERMA USA, IDEC light towers and more.
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