Today's Message Index:
----------------------
1. 06:08 AM - Re: Re: capacitive fuel probes (Richard Martin)
2. 06:48 AM - Re: Re: capacitive fuel probes (Jerry Grimmonpre)
3. 09:53 AM - Re: Re: capacitive fuel probes (Brian Huffaker)
4. 10:50 AM - Re: Re: capacitive fuel probes (Terry Watson)
5. 11:25 AM - Re: Re: capacitive fuel probes (Larry Bowen)
6. 04:39 PM - Re: Re: capacitive fuel probes (Dan Bergeron)
Message 1
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| Subject: | Re: capacitive fuel probes |
Listers,
I now have 1900 hours on my capacitance fuel level senders with ultra
accurate results. I did not use the rod type sensors. When I built the
tanks, I built them with flat plate sensors inside of the fuel tanks. I
realize this method should be done during the construction phase of the
tanks.
Dick Martin
RV8 N233M
the fast one
On Mon, May 24, 2010 at 12:30 PM, <Speedy11@aol.com> wrote:
>
> Tom,
> If you have the Princeton probes, save yourself a LOT of grief and remove
> them now and toss them in the trash. Replace them with floats. You'll be
> much less grumpy.
> I calibrated mine seven times. They still are not accurate - not even
> close.
> Stan Sutterfield
>
>
> >All I have to do to be ready for my DAR inspection is to calibrate my
> capacitive
> fuel probes.
> <snip>
> >--
> >Tom Sargent
>
>
> Hi Tom,
>
> Which capacitive fuel probes do you have? I have the Princeton units that
> GRT
> sells and haven't been able to even come close to getting them calibrated.
> Actually,
> they went through the calibration fine (5 set points), but the readings
> are completely erroneous. Sometimes they read full when the tanks are 1/2
> empty.
> Sometimes they read empty when the tanks are full. Sometimes they read,
> well, whatever; usually not the actual amount of fuel. They are completely
> useless. I've talked with Princeton, and they've offered no suggestions.
>
> I'm not sure what to do at this point. Replacing the senders will likely
> require
> removing the tanks which is no small job on the -7 and -8. Ack, this
> sucks.
> I sure wish I'd just used the S&W float senders from Van's now.
>
>
> Matt Dralle
>
> *
>
> *
>
>
Message 2
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| Subject: | Re: capacitive fuel probes |
Dick,
Your flat plate sensors sound very interesting ... would you please
sketch-out what you did and scan it to the RV8 list?
Jerry
----- Original Message -----
From: Richard Martin
To: rv8-list@matronics.com
Sent: Wednesday, May 26, 2010 8:07 AM
Subject: Re: RV8-List: Re: capacitive fuel probes
Listers,
I now have 1900 hours on my capacitance fuel level senders with ultra
accurate results. I did not use the rod type sensors. When I built the
tanks, I built them with flat plate sensors inside of the fuel tanks. I
realize this method should be done during the construction phase of the
tanks.
Dick Martin
RV8 N233M
the fast one
Message 3
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| Subject: | Re: capacitive fuel probes |
On Wed, 26 May 2010, Jerry Grimmonpre wrote:
> Dick,
> Your flat plate sensors sound very interesting ... would you please
> sketch-out what you did and scan it to the RV8 list?
> Jerry
I'm not flying yet, but have installed the flat plate sensors ordered
from here:
http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1274891104-316-30&browse=ei&product=ei-fuelgauge
Brian Huffaker, DSWL (bifft@xmission.com)
RV-8A 80091
1/4 Starduster II N23UT flying
Message 4
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| Subject: | Re: capacitive fuel probes |
I hope Dick will respond. I installed the flat plate sensors from Vans
in my stalled RV-8A project and have been wondering about how I can
convert the electrical information from the sensors to drive a fuel
gauge or electronic engine monitor.
Terry
Seattle
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of Jerry
Grimmonpre
Sent: Wednesday, May 26, 2010 6:29 AM
Subject: Re: RV8-List: Re: capacitive fuel probes
Dick,
Your flat plate sensors sound very interesting ... would you please
sketch-out what you did and scan it to the RV8 list?
Jerry
----- Original Message -----
From: Richard Martin <mailto:martinaerodrome@gmail.com>
Sent: Wednesday, May 26, 2010 8:07 AM
Subject: Re: RV8-List: Re: capacitive fuel probes
Listers,
=EF=BD
I now have 1900 hours on my capacitance fuel level senders with ultra
accurate results.=EF=BD I did not use the rod type sensors.=EF=BD
When I built the tanks, I built them with flat plate sensors inside of
the fuel tanks.=EF=BD I realize this method should be done during the
construction phase of the tanks.
Dick Martin
RV8 N233M
the fast one
Message 5
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| Subject: | Re: capacitive fuel probes |
I had the flat cap. plates from Van's in my RV-8 and they worked fine with
the EI fuel gauge. You need a converter between each tank and the gauge,
also from Vans.
*
*
*Capacitive frequency converter (one per tank required)*
Part Number = IE P-300C
Price = $45.00
I have the float gauges in the current project because it's a quick-build.
--
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
On Wed, May 26, 2010 at 1:50 PM, Terry Watson <terry@tcwatson.com> wrote:
> I hope Dick will respond. I installed the flat plate sensors from Vans i
n
> my stalled RV-8A project and have been wondering about how I can convert
the
> electrical information from the sensors to drive a fuel gauge or electron
ic
> engine monitor.
>
>
> Terry
>
> Seattle
>
>
> *From:* owner-rv8-list-server@matronics.com [mailto:
> owner-rv8-list-server@matronics.com] *On Behalf Of *Jerry Grimmonpre
> *Sent:* Wednesday, May 26, 2010 6:29 AM
> *To:* rv8-list@matronics.com
> *Subject:* Re: RV8-List: Re: capacitive fuel probes
>
>
> Dick,
>
> Your flat plate sensors sound very interesting ... would you
> please sketch-out what you did and scan it to the RV8 list?
>
> Jerry
>
> ----- Original Message -----
>
> *From:* Richard Martin <martinaerodrome@gmail.com>
>
> *To:* rv8-list@matronics.com
>
> *Sent:* Wednesday, May 26, 2010 8:07 AM
>
> *Subject:* Re: RV8-List: Re: capacitive fuel probes
>
>
> Listers,
>
> =EF=BD
>
> I now have 1900 hours on my capacitance fuel level senders with ultra
> accurate results.=EF=BD I did not use the rod type sensors.=EF=BD W
hen I built the
> tanks, I built them with flat plate sensors inside of the fuel tanks.=EF
=BD I
> realize this method should be done during the construction phase of the
> tanks.
>
> Dick Martin
>
> RV8 N233M
>
> the fast one
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?RV8-List*
>
> **
>
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>
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>
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Message 6
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| Subject: | Re: capacitive fuel probes |
Hi:
This email is intended for Richard Martin, RV-8, N233M
I'm one of those who is having problems with insanely inaccurate fuel level
readings on my GRT screen fuel gauges. I installed the flat plate,
capacitive sensors in the fuel tanks of my RV-7A at the time of
construction. Of course they measure capacitance, which the GRT EIS unit
cannot read. A set of Princeton converter units change capacitance to
voltage (0 to 4 volts as I recall) and feeds those values to the EIS box.
I'm not very technical but I understand that much.
In this latest exchange of emails on this subject I learned for the first
time that there are in fact two types of capacitive sending units: the flat
plate version (which I installed) and the rod version (a new one on me).
Now I'm wondering if the converter units which I installed are compatible
with the flate plate sending units. Neither Todd nor Sandy at GRT have eve
r
mentioned anything about two different types of sending units; and, you'd
certainly think they'd read the same capacitive value for a given fuel
level. And of course the converter boxes couldn't care less about flat
plate or rod type sending units; they just convert farads to volts. I do
know that there are two types of converter units; one has five set points
and one has two (that's the one I have.) Maybe I've got the wrong
converters.
Am I on to something here or is it just wishful thinking driven by
frustration? What's your take on this? Maybe yet another call to GRT is i
n
order.
Dan Bergeron
RV-7A - N307TB
146 hours since first flight on 8/4/09
On Wed, May 26, 2010 at 2:16 PM, Larry Bowen <larry@bowenaero.com> wrote:
> I had the flat cap. plates from Van's in my RV-8 and they worked fine wit
h
> the EI fuel gauge. You need a converter between each tank and the gauge,
> also from Vans.
> *
> *
> *Capacitive frequency converter (one per tank required)*
> Part Number = IE P-300C
> Price = $45.00
>
> I have the float gauges in the current project because it's a quick-build
.
>
> --
> Larry Bowen
> Larry@BowenAero.com
> http://BowenAero.com
>
>
> On Wed, May 26, 2010 at 1:50 PM, Terry Watson <terry@tcwatson.com> wrote:
>
>> I hope Dick will respond. I installed the flat plate sensors from Vans
>> in my stalled RV-8A project and have been wondering about how I can conv
ert
>> the electrical information from the sensors to drive a fuel gauge or
>> electronic engine monitor.
>>
>>
>>
>> Terry
>>
>> Seattle
>>
>>
>>
>>
>>
>> *From:* owner-rv8-list-server@matronics.com [mailto:
>> owner-rv8-list-server@matronics.com] *On Behalf Of *Jerry Grimmonpre
>> *Sent:* Wednesday, May 26, 2010 6:29 AM
>> *To:* rv8-list@matronics.com
>> *Subject:* Re: RV8-List: Re: capacitive fuel probes
>>
>>
>>
>> Dick,
>>
>> Your flat plate sensors sound very interesting ... would you
>> please sketch-out what you did and scan it to the RV8 list?
>>
>> Jerry
>>
>> ----- Original Message -----
>>
>> *From:* Richard Martin <martinaerodrome@gmail.com>
>>
>> *To:* rv8-list@matronics.com
>>
>> *Sent:* Wednesday, May 26, 2010 8:07 AM
>>
>> *Subject:* Re: RV8-List: Re: capacitive fuel probes
>>
>>
>>
>> Listers,
>>
>> =EF=BD
>>
>> I now have 1900 hours on my capacitance fuel level senders with ultra
>> accurate results.=EF=BD I did not use the rod type sensors.=EF=BD
When I built the
>> tanks, I built them with flat plate sensors inside of the fuel tanks.=EF
=BD I
>> realize this method should be done during the construction phase of the
>> tanks.
>>
>> Dick Martin
>>
>> RV8 N233M
>>
>> the fast one
>>
>> * *
>>
>> * *
>>
>> **
>>
>> **
>>
>> **
>>
>> **
>>
>> **
>>
>> **
>>
>> *http://www.matronics.com/Navigator?RV8-List*
>>
>> **
>>
>> **
>>
>> **
>>
>> *http://forums.matronics.com*
>>
>> **
>>
>> **
>>
>> **
>>
>> **
>>
>> *http://www.matronics.com/contribution*
>>
>> **
>>
>> * *
>>
>> *et="_blank">http://www.matronics.com/Navigator?RV8-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
>> *
>>
>>
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