Will Your Surge Protector Still Protect Your Equipment After a Power Surge?


Let’s say you had a weather-related power surge at your home or facility, and you had all your important electronic Lightning-Storm-4equipment protected by a surge protector. Your connected equipment is working properly post-surge, so you assume the surge protector did its job. But now you’re wondering, “What about next time?” How do you know if the previous power surge damaged your surge protector to the point where it will no longer provide the same level of protection? The answer depends on the severity of the power surge and what type of surge protector you have.

While all surge protectors say they protect PCs and home electronics from damaging power surges and spikes, their level of protection (in Joules) varies. A high quality surge protector will have a Joule rating of at least 1200 depending on the number of outlets that need to be protected. In the case of a power surge that was much higher than the rating of your surge protector, the internal protective components may have been damaged beyond repair. But how would you know that?  Well, that’s where the type of surge protector can help you answer the question.

Isobar-series-LEDsMost surge protectors include up to three diagnostic LEDs that tell you the operational status of your surge protector before and after a power surge. To determine if the internal surge protection components are working normally, look at the “Protection Present” or “Protected” LED on the front of the surge protector’s casing. If it is illuminated green, your surge protector is ready to go and prepared to protect you when the next power surge occurs. However, if this LED does not illuminate, there is likely something wrong with the surge protector’s internal components, or the wall outlet is not wired correctly.

Other diagnostic LEDs tell you more information about the wall outlet that feeds power to your surge protector. The “Line OK” LED illuminates green when there is normal power coming from the wall outlet to the surge protector. If this LED does not illuminate with the power switch turned on, check to see if the power cord is fully inserted into the wall outlet and there is normal power available at the outlet. Some surge protectors include a “Grounded” LED to indicate whether the wall outlet is grounded, which is required for the surge protector to function properly. If this LED does not illuminate and power is present, this indicates there is something wrong with the earth ground connection. The “Fault” LED indicates that there is faulty outlet wiring (e.g., power phases are reversed, earth safety ground is missing, wall outlet connections are loose, etc.). If the “Fault” LED illuminates red, there is something wrong with the electrical power or wall outlet wiring. If the “Grounded”, “Line OK” or “Fault” LEDs indicate a wiring issue, you should call a qualified electrician to fix the problem.

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Tips for Setting up Church, Classroom and Ministry Room Projectors, Part 4 of 4


Other Key Considerations

From 4K/Ultra High Definition (UHD), which is four times the projectortable380resolution of full HD, to XGA, there are quite a few resolutions to choose from.  A key consideration is how much HD video content you plan to show.

Remote management is helpful in a classroom environment, especially if there are several classrooms. With remote management, lamp-based projectors can be powered off using a program timer built into the control software in order to conserve bulb life.

Video picture quality varies a lot depending on make and model of the projector.  That is because scalar chips and video processors in the projectors are not created equally.  This is important because audience expectations are getting higher due to the amount of HD content available.

Top 10 Do’s and Don’ts

  1. Don’t try to get by with a “floating” projector that goes from room to room
  2. Don’t plan on turning out the lights. Dimly lit rooms, at times, reduce the audience’s attention.  The brightness of the projector needs to be high enough to overcome lighting
  3. Don’t worry about LCD versus DLP vs. laser phosphor vs. LED light engines – they all perform well
  4. Do assess whatever multimedia sources and computer sources your presenters will want to connect to the projectors, and map that to available connectors before buying a specific projector model
  5. Do talk to presenters about how they can integrate more multimedia to get them thinking about improving classroom techniques
  6. Do look for models with “eco-mode” that will conserve power and bulb life for lamp-based projectors
  7. Do select projectors that have the compatibility with newer video signal protocols and higher brightness to suit your evolving needs over time
  8. Do examine your mounting challenges prior to buying mounts and projectors
  9. Go with a good brand name – it will generally equate to longer product life and better product reliability
  10. Do ask an expert for advice about your unique circumstances

A Better Facility

Projectors have a big impact on the image your organization sends.  You want to make presentations a memorable experience for parishioners, guests and administrators.  There are many different options out there for hardware, and up-front planning is the best way to ensure you are happy with your selection.  If you follow these tips, you’ll be on your way to a noticeably better facility.