Today's Message Index:
----------------------
1. 03:51 PM - Re: Zeftronics Regulator Connection Question (farmrjohn)
2. 05:16 PM - Re: Re: Zeftronics Regulator Connection Question (Robert L. Nuckolls, III)
3. 06:32 PM - Re: Antenna Ground Planes (AdventureD)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Zeftronics Regulator Connection Question |
Based on the lack of replies I'll go with "if it ain't broke, don't fix it" as
it seems to be working OK. John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=500380#500380
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Zeftronics Regulator Connection Question |
At 05:51 PM 1/22/2021, you wrote:
I have a Zeftronics R15100 voltage regulator that has the following
terminals: I-A-S-F.
Only three terminals have wires connected to them, I-A-F. For low or
high voltage indication
it looks like an Electronics International VA-1 voltmeter is used.
Everything seems
to be working (system shows 14.1 volts when engine running,
alternator on), should
I move the I lead to the S terminal?
Man! You got me! That regulator is FAA-PMA replacement
for the stock 'ford' regulators common to single engine,
14v Cessnas for probably over a decade. That regulator
is featured in my Z-Figures and written about in the
'Connection'. Attached is a page excerpted from a Cessna
maintenance manual on single engine airplanes.
Clearly, the wiring depicted is consistent with
our understanding of how that regulator works.
Why your regulator appears to be working is a mystery.
It's sound logic to not mess with a working
system . . . but . . . I would sure like to
understand why it is working.
Having said that, we also know that while
certain after-market, plug-n-play 'ford'
regulators are not form-fit-and-function
in a Cessna. I tried to replace a failed
regulator in a C-172XP rental and was treated
with an overvoltage condition when I turned
the alternator on. I don't recall details of
the variation but clearly, risks for differences
were not zero.
This Zeftronics device includes extra features
(diagnostics) not part of the generic 'ford'
regulator.
https://tinyurl.com/y6le6gdo
There may be other nuances not
obvious to us . . . but I'm mystified as to
how/why your system appears to be functional.
Perhaps a call to Zeftronics?
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Antenna Ground Planes |
Thank you Bob, Joe, all, for all this advice. Happy and safe flying, Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=500383#500383
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|