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MGL Avionics Vega Instruments

PostPosted:Thu Dec 20, 2018 11:42 pm
by Sooty25
Does anybody have any practical experience with these? Are they any good?

http://www.mglavionics.com/html/vega_color_singles.html

In particular the engine monitor EMS-1

or the Temperature monitor TC-4

Re: MGL Avionics Vega Instruments

PostPosted:Fri Dec 21, 2018 8:45 pm
by MikeW
The Vega range is probably too new to get reports with experience.
However I recently bought - from parts4aircraft - the previous model Infinity E3 engine monitor which has a monochrome display but exactly the same capabilities except no canbus. It seems very good but the information presentation is unavoidably a bit crowded. I am using it for 4 egt and 2 cht readings on a 912. It also gives Hobbes, flight time, rpm and volts. There is a multi parameter alarm on it.
I also bought a TP1 oil temp and pressure monitor. It does a very good job but I'm having a problem with intermittent display and it's going back under warranty. The electronics is fine as evidenced by the alarm working ok (set to flash a red led while oil temp is below 50) I expect it's a multi way connector problem to the LCD screen.
Subject to resolution of that I'm very happy. I get all those capabilities in 2 holes previously occupied by a Westach egt and a Westach cht (having replaced a 582 with a 912) at much lower cost than any efis system.

Re: MGL Avionics Vega Instruments

PostPosted:Sun Dec 23, 2018 12:30 am
by Sooty25
Thanks @MikeW that sounds promising, I'm actually only after EGT, CHT and volts, but would no doubt end up using some of the other features.

Re: MGL Avionics Vega Instruments

PostPosted:Sun Dec 23, 2018 12:25 pm
by MikeW
On the E-3, V only displays when rpm=0, it cycles with Hobbes and flight time.
However you can manually select it at any time, and you can also set high and low limits for the alarm.
If that alarm goes I imagine it will switch to display V or you won't know what the alarm is.
I'm guessing the Vega will be operationally the same but can't guarantee it. Can you download the manual for it?

Re: MGL Avionics Vega Instruments

PostPosted:Sun Dec 23, 2018 12:56 pm
by MikeW
javascript:window.open('http://www.partsforaircraft.co.uk/downloads/vegaems-1.pdf','HLWindow1','toolbar=yes,menubar=yes,scrollbars=yes,resizable=yes');void(0);

Some nice new facilities in it!

Re: MGL Avionics Vega Instruments

PostPosted:Sun Dec 23, 2018 6:29 pm
by Sooty25
Well, it certainly seems like a vote of confidence. It will be interesting to hear how the warranty problem is resolved. Keep us posted on that.

Manual certainly makes the EMS look like the way to. If I do I'll let you know how I get on with it.

Re: MGL Avionics Vega Instruments

PostPosted:Tue Jan 08, 2019 6:09 pm
by MikeW
The TP-1 warranty question is left a bit open at the moment.
The LCD display was misbehaving. Taking up to 10 minutes to come on and on the final occasion, displaying in mirror image, reading from right to left! Can't explain that.
This was during Nov/Dec when it was pretty cold and very wet and the polytunnel - with no floor on saturated clay ground - was streaming with condensation all the time. I was just getting the plane out for ground runs when I could.
The spec for the TP-1 only allows for <85%RH non-condensing and conditions were far worse than that!
After a bit of time in the warmth at home, it worked perfectly again.
The Distributor had said send it back and he would check the ribbon cable connector to the display was secure. I've done that myself anyway. There were no seals to stop you removing the case.
We've agreed that sending it back now won't achieve anything and will further delay my test flights.
I will refit it this week and see how it goes and send it back if the fault recurs. I don't expect it to unless we get such awful conditions again.
So I'm slightly disappointed, but it's a relatively low price instrument, not MIL spec.
The E-3 hasn't faltered. I'm still impressed with it and the colour display would be nicer.

Re: MGL Avionics Vega Instruments

PostPosted:Tue Jan 08, 2019 11:33 pm
by Sooty25
Thanks for the detailed explaination @MikeW.

Environmental protection is an expensive issue to resolve if you want the paperwork to back it, I've worked with electronics in harsh environments for over 30 years now, so I can understand why MGL haven't gone for full IP/CFR rating.

Not sure how to tackle your condensation issue other than trying to rig some ventilation to blow through the tunnel.

EMS is happening, so I'll let you know how it works out.

Did you get a PM from me the other day?

Re: MGL Avionics Vega Instruments

PostPosted:Wed Jan 09, 2019 12:09 pm
by MikeW
Sorry didn't notice it, now replied.