Today's Message Index:
----------------------
1. 05:13 AM - Re: Re: Calibrating fuel qty gauges (Johnson, Phillip (EXP))
2. 06:44 AM - Two batteries in Parallel (Johnson, Phillip (EXP))
3. 06:47 AM - Re: 22awg fusible link (Robert L. Nuckolls, III)
4. 06:55 AM - Re: Two batteries in Parallel (Robert L. Nuckolls, III)
5. 07:22 AM - Re: Duracell (durajunk) (Speedy11@aol.com)
6. 07:25 AM - Re: Calibrating fuel qty gauges (Speedy11@aol.com)
7. 07:55 AM - Voltage thru 9-Pin Mini D (CHARLES T BECKER)
8. 09:06 AM - Re: Voltage thru 9-Pin Mini D (Robert L. Nuckolls, III)
9. 10:47 AM - Dan's Jabiru 3300 Wiring Schematic (messydeer)
10. 10:48 AM - Re: Re: VOM Troubles (ray)
11. 10:49 AM - Re: Voltage thru 9-Pin Mini D (Ron Quillin)
12. 04:40 PM - The next generation of SVLA batteries (Robert L. Nuckolls, III)
13. 06:55 PM - Re: Dan's Jabiru 3300 Wiring Schematic (messydeer)
Message 1
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Subject: | Re: RE: Calibrating fuel qty gauges |
Mine is not flying yet. I was just relating to what I had done and what
was in the instructions.
I will be using auto fuel though.
Phillip Johnson
Cozy MK IV Powered by Subaru IO-200
www.canardzone.com/members/phillipjohnson
Message 2
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Subject: | Two batteries in Parallel |
Bob,
I was looking at your Z-10/8 diagram (that's the one with brown out
protection) in http://aeroelectric.com/R12A/AppZ_12A3.pdf and noticed
the main battery and the brown out battery are connected in parallel
except for the starting cycle. Is it OK to have two, different,
batteries connected in parallel for 24/7? Not even the master solenoid
disconnects them.
Regards
Phillip Johnson
Cozy MK IV Powered by Subaru IO-200
www.canardzone.com/members/phillipjohnson
Message 3
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Subject: | Re: 22awg fusible link |
At 11:47 AM 8/18/2009, you wrote:
><dinahdog@cox.net>
>
>Hi Bob:
>
>Building a Bearhawk; using your written guidance on the electrical
>system for which I much appreciate. Dynon D180 uses 22awg from shunt
>to loadmeter and requires fusible links or fuses. Fusible link
>requires 26awg to be 4 step sizes from 22awg. Having difficulty
>finding 26awg tefzel after checking BandC, Stein, Spruce. Will 24awg
>packaged in BandC part FLK-1 provide proper protection? Rather not
>use in line fuses for this.
Step your signal wires up to 20AWG and use 24AWG fusible links.
>Also, S700-2-5 switches, wired IAW Z-11 ver. 12 can be used for
>either two mags or one mag/ one electronic ignition?
2-5 switches are useful for any combination of electronic/magneto
ignition systems. Other Z-figures offer suggestions for various
combinations with and without starter lock-out.
Bob . . .
---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
---------------------------------------
Message 4
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Subject: | Re: Two batteries in Parallel |
At 08:13 AM 8/20/2009, you wrote:
>Bob,
>
>I was looking at your Z-10/8 diagram (that's the one with brown out
>protection) in
><http://aeroelectric.com/R12A/AppZ_12A3.pdf>http://aeroelectric.com/R12A/AppZ_12A3.pdf
>and noticed the main battery and the brown out battery are connected
>in parallel except for the starting cycle. Is it OK to have two,
>different, batteries connected in parallel for 24/7? Not even the
>master solenoid disconnects them.
Sure. Most if not all the prohibitions for
paralleling batteries are popular myths. See:
http://aeroelectric.com/articles/Batteries/Multiple_Battery_Myths_A.pdf
Bob . . .
---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
---------------------------------------
Message 5
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Subject: | Re: Duracell (durajunk) |
I concur.
I refuse to purchase any size Duracell anymore. Sometimes when they come
packaged with a product, I immediately dispose of them and buy new
Energizers. The Energizers seem to still be reasonably good about not leaking.
The Rayovacs had leakage problems years ago, but I haven't tried them in a
long time - because of that.
Stan Sutterfield
Do no archive
They have changed them in some way that is causing the recent
produced batteries to leak, (last 2-4 years). Previously I never had
a problem with them. Rayovacs used to have leaking problem,
Energizers were better in that regard but still would leak after a
longer period of time. Duracells seldom ever leak ever leak which
made them good choice for use in more expensive things like camera,
test equipment. etc. You paid a little more for them but you had
peace of mind that they wouldn't leak, not so any more.
Message 6
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Subject: | Re: Calibrating fuel qty gauges |
100LL.
I have an IO-390, Princeton fuel probes, Advanced Flight Systems AF-3400EM
engine monitor.
Stan Sutterfield
Do no archive
Are you using 100LL or ethanol blend car gas.
jerb
At 05:12 AM 8/19/2009, you wrote:
>My sensors are not Princeton but the principle is the same. I seem
>to remember drilling about a 1/16" or 3/32" hole at the top of the tube.
>
>Phillip Johnson
>
>
>----------
>From: Speedy11@aol.com [mailto:Speedy11@aol.com]
>Sent: Tuesday, August 18, 2009 9:07 PM
>To: aeroelectric-list@matronics.com
>Cc: Johnson, Phillip (EXP)
>Subject: Re: Calibrating fuel qty gauges
>
>Phillip,
>Thanks for your response.
>Your idea may be correct. Not having the vent hole would cause a
>problem. As I recall, the Princeton senders did have a small (maybe
>a #40) hole drilled in the side to allow flow. But, I will check
>photos to see if that is correct.
>Thanks for the idea.
>Stan Sutterfield
>Do not archive
>
>Was Said>
>The Princeton Capacitance Sensors I bought and connected to the AF-3400
>EM do not work. I've calibrated them 7 times and they still fluctuate
>between full and 8 gallons when the tanks are full and fluctuate wildly
>when less than full. Perhaps I've done something wrong in the
>calibration - I know most errors are installation or operator errors -
>but, I tried to follow the AF-3400 instructions accurately.<end
>
>When I installed my capacitance senders I seem to remember having to
>drill a small hole at the highest point so that the fuel could drain
>back down the tube as necessary. It is possible that you have entrapped
>fuel in the tube that is being held there and needs to be released by a
>small vent.
>
>Regards,
>
>Phillip Johnson
Message 7
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Subject: | Voltage thru 9-Pin Mini D |
What is the maximum amperage to run 12vdc thru a 9pin mini
D connector?
Message 8
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Subject: | Re: Voltage thru 9-Pin Mini D |
At 09:50 AM 8/20/2009, you wrote:
><ctbecker@atlanticbb.net>
>
>What is the maximum amperage to run 12vdc thru a 9pin mini D connector?
5A any pin but I would de-rate to 3A or so for any appliation
that is continuous duty. You can increase the current that
passes through a d-sub by paralleling pins.
http://aeroelectric.com/Pictures/Schematics/Paralleled_DSub_Pins.pdf
. . . again, for continuous duty, de-rate pins to about
3A and then parallel enough to cover the requirement.
Bob . . .
---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
---------------------------------------
Message 9
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Subject: | Dan's Jabiru 3300 Wiring Schematic |
Hello :-)
I'm posting my latest draft of my wiring schematic for a Jabiru 3300. There's no
way I could have done this without the info provided by Bob and the members
of this list. Very, very thankful for you guys!
Notes about the schematic
I may not go with a starter engaged light. I understand monitoring the system voltage
would show a big drain if this were engaged. Not being a pilot and never
having started an airplane engine leaves me at a bit of a disadvantage.
I plan to get something like the Enigma. The basic unit would be able to monitor
system voltage, but would alarm only for undervoltage. The alarm level is customizable.
For me, I see little value putting in an ammeter shunt and getting
an add-on IOX needed for this. Just more weight and expense.
I may not have an alternator disconnect light, either. So I would be notified of
an OV situation by the CB being tripped and a bit later by the low voltage alarm
in the EIS.
Two aux power 'Powerelet' sockets. They are rated at 15A. I thought getting these
higher capacity sockets might help speed recharging a dead battery.
Alternator disconnect relay placed in the AC output. If the regulator were to short
out, the 25A inline fuse would burn up before the regulator sucked my battery
empty, wouldn't it?
I got the starter 'security' ideas from the list archives. Forget who, exactly.
The two mag switches would both have to be lifted into the momentary on positions
while the starter button is pushed. There would also need to be a plug inserted
into a microphone jack to complete the starter switch circuit.
I've posted other questions directly on the schematic. Lemme know how this all
looks, when you have time!
--------
Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258868#258868
Attachments:
http://forums.matronics.com//files/dans_z16m_mod_for_jabiru_3300_sonex_secured_164.pdf
http://forums.matronics.com//files/dans_z16m_mod_for_jabiru_3300_sonex_secured_461.pdf
Message 10
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Subject: | Re: VOM Troubles |
Bob,
I've had several Duracell batteries leak in the last couple of years.
They were C & D cells in Maglight flashlights. They were kept in
vehicles, which resulted in them being cold soaked to temps of -20 deg
f. I attributed their failures to the cold exposure, but that was pure
conjecture. They were installed in the fall and found to have leaked in
the spring.
Raymond Julian
Kettle River, MN
"Hope for the best, but prepare for the worst"
do not archive
Robert L. Nuckolls, III wrote:
> <nuckolls.bob@aeroelectric.com>
>
> At 11:22 PM 8/17/2009, you wrote:
>>
>> Hey Guys,
>> Can't say about the batteries you have but the Duracells are not the
>> battery they used to be. You used to be able to put them into a piece
>> of equipment and not have to worry about them leaking . . .
>
> I've not experienced a leaking incident with
> flashlight cells in years. I did loose a digital
> caliper last month because an alkaline button cell
> leaked . . . but it was a case where the tool was
> stored for a long time with a discharged cell. Our
> battery powered devices are working tools that generally
> don't get stored for long periods of time with dead
> cells.
>
> . . . they were great for meters and cameras, not so any more.
>
> I've not detected any 'changes' in these products
> tendencies to leak in our regular change-out working
> environment. Has anyone else on the list experienced
> a messy event with their alkaline cells of any brand?
>
>
> Bob . . .
>
> ---------------------------------------
> ( . . . a long habit of not thinking )
> ( a thing wrong, gives it a superficial )
> ( appearance of being right . . . )
> ( )
> ( -Thomas Paine 1776- )
> ---------------------------------------
>
>
>
>
>
>
>
Message 11
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Subject: | Re: Voltage thru 9-Pin Mini D |
I've seen this question a few times and some while ago went to source
documents for connectors I've seen in use, the AMP series 109
Amplmite. The AMP web site publishes data for connector/contact
derating based on contact current, wire gauge, temperature and
percent loading of the connector. It starts at 100% of the single
contact rating for a single connector and AWG-20 wire and derates to
37% of the single contact rating for a fully populated connector; at
'normal' temperatures. I believe standard density size 20 contacts
are rated for 7.5A, while high-density size 22 contacts are rated 5A.
Using the AMP ratings a fully populated standard density connector
with AWG-20 wire could sustain 2.775 amps per contact. With AWG-22
wire that decreases to 2.55A.
So were one to flow 3A through each contact of a fully populated
connector with AWG-22 wire, doing so would not be within
manufacturers specifications if using an AMP series 109 connector.
The derating graph and table are on page 6 of the below linked AMP document.
http://tinyurl.com/n8eret
or here for the source
http://www.tycoelectronics.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Specification+Or+Standard%7F108-1770%7FA%7Fpdf%7FEnglish%7FENG_SS_108-1770_A.pdf
Ron Q.
At 09:04 8/20/2009, you wrote:
><nuckolls.bob@aeroelectric.com>
>
>At 09:50 AM 8/20/2009, you wrote:
>><ctbecker@atlanticbb.net>
>>
>>What is the maximum amperage to run 12vdc thru a 9pin mini D connector?
>
> 5A any pin but I would de-rate to 3A or so for any appliation
> that is continuous duty. You can increase the current that
> passes through a d-sub by paralleling pins.
>
>http://aeroelectric.com/Pictures/Schematics/Paralleled_DSub_Pins.pdf
>
> . . . again, for continuous duty, de-rate pins to about
> 3A and then parallel enough to cover the requirement.
>
>
> Bob . . .
>
> ---------------------------------------
> ( . . . a long habit of not thinking )
> ( a thing wrong, gives it a superficial )
> ( appearance of being right . . . )
> ( )
> ( -Thomas Paine 1776- )
> ---------------------------------------
>
>
Message 12
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Subject: | The next generation of SVLA batteries |
See:
http://beyondzeroemissions.org/microcell-battery-technology-firefly-energy-mil-ovan/302
I have the privilege of participating in an evaluation
of this emerging technology for a client. You're not
going to buy one next year . . . but ten years from
now they may have replaced the best we know how to do
today.
Bob . . .
---------------------------------------
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
---------------------------------------
Message 13
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Subject: | Re: Dan's Jabiru 3300 Wiring Schematic |
Corrections and Additions
I corrected the mag wiring. Had 1-3 switches and called them 1-5. They're now 2-5
and I hope I have the switch, mag P-lead and shield shown correctly.
Had shown the 'push start' which isn't needed, although I called it optional here.
Swapped the strobe with the nav/pos light switch positions so the strobe can be
turned off and the nav/pos left on.
Think those were the main things. Hopefully the fonts come out better. Having problem
with software :-(
--------
Dan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258916#258916
Attachments:
http://forums.matronics.com//files/dans_z16m_mod_for_jabiru_3300_sonex_945.pdf
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