Ron's Voltmagic simplifier

So you're having a little problem understanding the  setup...don't feel lonely, so did I. Hopefully this will help. If you're still having trouble call me at extension 11.

I think the first thing to understand is; what information is this device going to give me?

• It's always going to show you the current average voltage.
• If the voltage reaches a certain threshold it will show the lowest voltage that has reached your receiver during the flight. In the case of regulated systems, it can also show when the voltage is above a certain threshold.
• It will also show you how many times you've been glitched (FM/PPM) or, if you choose, gone into Fail Safe(PCM)...all at the same time.

You could have up to three LEDs lit at one time. One showing Glitches/Fail Safes (Always LED #1), one showing average voltage (Any of the 8 LEDs)  and one showing the Peak Low Voltage (LEDs 5-8).

Any of the 8 LEDs could be lit for the average voltage. At least one of them will always be lit or lit but blinking. Each one represents 1/10th of a volt. You tell it what voltage to start with (configure it)

If the average voltage causes the same LED to light as a Glitch or PLV warning, it will blink off. This is the key to understanding the display.

Remember that if the #8 LED starts blinking, you need to land immediately. It means that something is wrong. Either your battery is very low or about to die OR you have servos that are binding OR you have a bad connection/switch. Land and fix it. It could also mean that your configuration is wrong.

Configuration is simple once you decide what range to use. How do I choose?

This depends a lot on what kind of battery you are using and how much current your system draws. The main thing to think about is what is going to trigger LEDs 5 through 8 and 8 in particular. If you see Red in just about any configuration, it's time to charge.

Looking at Table 2 in the Operation Guide you will see what voltages trigger these LEDs. It's a good idea to experiment with different ranges. While you are experimenting, please use common sense. For example, don't try Range 1 with a 5 cell NiCd and expect it to give you any useful information.

Personally I'm using Range #1 for my birds that use a single 4 cell pack and no more than one digital servo. I know when I start seeing yellow, it's time to start paying attention because my average voltage is now 4.8 volts. If I'm not seeing a Red LED , I keep flying because I know that, even under a load, my voltage hasn't dipped below 4 volts. If I were using all digital servos, I might use a higher range because I would want that first Red LED to come on sooner.

How do I configure it?

It could be as simple as plugging it into a spare receiver slot and going to fly. There are some things you might want to do with the Glitch monitor but if all you want is voltage information, it'll work fine as is. But let's say you want to change the range and you have it plugged into channel 7. Find out what switch or dial controls channel 7. If you aren't sure, plug a servo into that channel and start flipping switches and turning dials. Once you find the switch/dial plug the Voltmagic back into that channel.

• Figure out what range you want to use and make note of which LEDs must be lit to get that range. Use the table at the bottom of the configuration page to get that information. Let's say you want to set it to Range 2 and have the Fail Safe counter active. That means that you are looking for LED #4 and LED #8 to be lit.
• Turn your receiver off, then back on.
• Immediately and repeatedly  flip the switch/sweep the dial that controls the channel Voltmagic is plugged into.
• When the # 1 LED starts blinking, you are in configuration mode.
• If LED #8 isn't on, start flipping/sweeping the switch back and forth until it is (just look at LED #8 for this step). Then turn off the receiver.
• Turn the receiver back on and re-enter configuration mode.
• Start flipping/sweeping the switch back and forth. You'll notice the LEDs that are lit changing. When 4 and 8 are lit, turn off the power to the receiver. Don't worry if you go past the setup you want, just keep flipping until it comes around again, then turn off the power.
• You are done...almost.

For the Fail Safe counter to work you have to set the Fail Safe position on the channel Voltmagic is plugged into to the maximum position on one end of that channel (140 or 150%). Once that's set you have to back the ATV/Travel Adjust to 85%. If you're using the glitch counter (FM/PPM) you can just set the ATV on the Voltmagic channel to 85%. Remember, the glitch/Fail Safe counter doesn't start working until a full minute has passed. If the Fail Safe counter doesn't seem to be working, set the Fail Safe position to the opposite side of the channel.

The instructions that come with this unit have a lot of information in them. To get the most out of your Voltmagic, you really need to read the instructions. Read them until you understand them. Once you do, you will see how valuable this little device can be.

Enjoy your hobby and be safe.