Today's Message Index:
----------------------
1. 02:58 AM - Re: Voltmeter advice needed (Lynn Matteson)
2. 04:43 AM - Re: Voltmeter advice needed (Mark Hubelbank)
3. 05:31 AM - Re: Voltmeter advice needed (Lynn Matteson)
4. 05:49 AM - Re: Voltmeter advice needed (Lynn Matteson)
5. 07:58 AM - Re: Voltmeter advice needed (Paul Mulwitz)
6. 10:56 AM - Re: Voltmeter advice needed (Lynn Matteson)
7. 12:45 PM - Re: Voltmeter advice needed (Paul Mulwitz)
8. 03:33 PM - Re: Voltmeter advice needed (Lynn Matteson)
9. 06:08 PM - Re: Voltmeter advice needed (Ed D'Antoni)
10. 06:28 PM - Re: Voltmeter advice needed (Paul Mulwitz)
11. 06:57 PM - Re: Voltmeter advice needed (Lynn Matteson)
12. 11:32 PM - Re: Voltmeter advice needed (Keith Pickford)
Message 1
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| Subject: | Re: Voltmeter advice needed |
Bingo! That looks perfect, Keith....if it will read as low as .25
volts. I'll check it out.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1137 hrs (since
3-27-2006)
On Jul 15, 2011, at 12:07 AM, Keith Pickford wrote:
> Have a look here for the specs
>
>
> http://www.farnell.com/datasheets/10308.pdf
>
> Regards
>
> Keith
>
>
> --- On Fri, 15/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
>
> From: Lynn Matteson <lynnmatt@jps.net>
> Subject: JabiruEngine-List: Voltmeter advice needed
> To: jabiruengines@yahoogroups.com, jabiruengine-list@matronics.com,
> kitfox-list@matronics.com
> Date: Friday, 15, July, 2011, 1:01 PM
>
> <lynnmatt@jps.net>
>
> I'm looking for a small digital voltmeter....voltmeter ONLY, if
> possible. I want to install a voltmeter in my panel to monitor my
> timing advance (this uses less than 2 volts). I realize that I can
> buy a multimeter, but I don't want to have to figure out what to do
> to make all the other functions go away and leave me with ONLY the
> voltage reading. This way I hope to be able to mount just the
> display somewhere on the panel (I'm running out of room) and read
> only voltage, which will be under 2 volts in this application.
> Anybody know of one, or able to steer me in the right direction?
>
> I have a couple of digital multimeters, but looking inside and
> seeing all the extra crap that I don't need, made me decide that
> there must be an easier way.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
> vigator?JabiruEngine-List" target="_blank">http://www.matronics.com/
> Navig========================http://www.matronics.com/contribution
>
>
> www.matronics.com/contribution _-
> ===========================================================
Message 2
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| Subject: | Re: Voltmeter advice needed |
Lynn,
That unit only works down to 4 V. You need a meter with separate
power. Note that all the meters that allow the ground of the power and
the measured signal such as the Murata meters from Digikey need 5V
+/-0.5V so a three terminal regulator is required.
On 07/15/2011 5:56 AM, Lynn Matteson wrote:
>
> Bingo! That looks perfect, Keith....if it will read as low as .25
> volts. I'll check it out.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
> 3-27-2006)
>
>
> On Jul 15, 2011, at 12:07 AM, Keith Pickford wrote:
>
>> Have a look here for the specs
>>
>>
>> http://www.farnell.com/datasheets/10308.pdf
>>
>> Regards
>>
>> Keith
>>
>>
>>
>> --- On Fri, 15/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
>>
>> From: Lynn Matteson <lynnmatt@jps.net>
>> Subject: JabiruEngine-List: Voltmeter advice needed
>> To: jabiruengines@yahoogroups.com, jabiruengine-list@matronics.com,
>> kitfox-list@matronics.com
>> Date: Friday, 15, July, 2011, 1:01 PM
>>
>> <lynnmatt@jps.net>
>>
>> I'm looking for a small digital voltmeter....voltmeter ONLY, if
>> possible. I want to install a voltmeter in my panel to monitor my
>> timing advance (this uses less than 2 volts). I realize that I can
>> buy a multimeter, but I don't want to have to figure out what to do
>> to make all the other functions go away and leave me with ONLY the
>> voltage reading. This way I hope to be able to mount just the display
>> somewhere on the panel (I'm running out of room) and read only
>> voltage, which will be under 2 volts in this application. Anybody
>> know of one, or able to steer me in the right direction?
>>
>> I have a couple of digital multimeters, but looking inside and seeing
>> all the extra crap that I don't need, made me decide that there must
>> be an easier way.
>>
>> Lynn Matteson
>> Kitfox IV Speedster, taildragger
>> Jabiru 2200, #2062
>> Prince prop 64 x 30, P-tip
>> Electroair direct-fire ignition system
>> Rotec TBI-40 injection (sleeved to 36mm)
>> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
>> vigator?JabiruEngine-List"
>> target="_blank">http://www.matronics.com/Navig========================http://www.matronics.com/contribution
>>
>>
>> www.matronics.com/contribution
>
>
--
Mark Hubelbank
NorthEast Monitoring
2 Clock Tower Place
Suite 555
Maynard, MA, 01754 - USA
mhubel@nemon.com
978-443-3955
Message 3
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| Subject: | Re: Voltmeter advice needed |
Yeah, I just found that out, Mark....the "down to 4 volt" thing. I
also just discovered a Hobbico volt meter that I had from my RC
flying days. Measures down to almost nothing, and it IS voltage only,
so a lot of the extra stuff of a multimeter is already gone. It uses
a 9-volt battery, but that's the least of my worries. Also, another
poster mailed me directly and suggested that a hobby store might have
a simple electronics kit for kids that might have one as a
project....I'll try Toy-R-Us when they open.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1137 hrs (since
3-27-2006)
On Jul 15, 2011, at 7:40 AM, Mark Hubelbank wrote:
> <mhubel@nemon.com>
>
> Lynn,
> That unit only works down to 4 V. You need a meter with
> separate power. Note that all the meters that allow the ground of
> the power and the measured signal such as the Murata meters from
> Digikey need 5V +/-0.5V so a three terminal regulator is required.
>
> On 07/15/2011 5:56 AM, Lynn Matteson wrote:
>> <lynnmatt@jps.net>
>>
>> Bingo! That looks perfect, Keith....if it will read as low as .25
>> volts. I'll check it out.
>>
>> Lynn Matteson
>> Kitfox IV Speedster, taildragger
>> Jabiru 2200, #2062
>> Prince prop 64 x 30, P-tip
>> Electroair direct-fire ignition system
>> Rotec TBI-40 injection (sleeved to 36mm)
>> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
>> 3-27-2006)
>>
>>
>>
>>
>> On Jul 15, 2011, at 12:07 AM, Keith Pickford wrote:
>>
>>> Have a look here for the specs
>>>
>>>
>>> http://www.farnell.com/datasheets/10308.pdf
>>>
>>> Regards
>>>
>>> Keith
>>>
>>>
>>>
>>> --- On Fri, 15/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
>>>
>>> From: Lynn Matteson <lynnmatt@jps.net>
>>> Subject: JabiruEngine-List: Voltmeter advice needed
>>> To: jabiruengines@yahoogroups.com, jabiruengine-
>>> list@matronics.com, kitfox-list@matronics.com
>>> Date: Friday, 15, July, 2011, 1:01 PM
>>>
>>> <lynnmatt@jps.net>
>>>
>>> I'm looking for a small digital voltmeter....voltmeter ONLY, if
>>> possible. I want to install a voltmeter in my panel to monitor my
>>> timing advance (this uses less than 2 volts). I realize that I
>>> can buy a multimeter, but I don't want to have to figure out what
>>> to do to make all the other functions go away and leave me with
>>> ONLY the voltage reading. This way I hope to be able to mount
>>> just the display somewhere on the panel (I'm running out of room)
>>> and read only voltage, which will be under 2 volts in this
>>> application. Anybody know of one, or able to steer me in the
>>> right direction?
>>>
>>> I have a couple of digital multimeters, but looking inside and
>>> seeing all the extra crap that I don't need, made me decide that
>>> there must be an easier way.
>>>
>>> Lynn Matteson
>>> Kitfox IV Speedster, taildragger
>>> Jabiru 2200, #2062
>>> Prince prop 64 x 30, P-tip
>>> Electroair direct-fire ignition system
>>> Rotec TBI-40 injection (sleeved to 36mm)
>>> Status: flying with "Ramcharger" intake manifold...1137 hrs
>>> (since vigator?JabiruEngine-List" target="_blank">http://
>>> www.matronics.com/Navig========================http://
>>> www.matronics.com/contribution
>>>
>>>
>>> www.matronics.com/contribution
>>
>>
>>
>>
>>
>>
>
> --
> Mark Hubelbank
> NorthEast Monitoring
> 2 Clock Tower Place
> Suite 555
> Maynard, MA, 01754 - USA
> mhubel@nemon.com
> 978-443-3955
>
>
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| Subject: | Re: Voltmeter advice needed |
Thanks for the link, Keith, but that one won't work...specs say:
At voltages below 4.0V d.c., the LCD will display "LO" and will
ultimately go blank.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1137 hrs (since
3-27-2006)
On Jul 15, 2011, at 12:06 AM, Keith Pickford wrote:
> Hi Lynn
>
> Have copied below one that I am about to fit, quite small
>
> Regards
>
> Keith
>
> I suggest this one as it is clear and small and easy to mount. This
> is what we have in the boat, permanently running as it only draws
> 3mA (a LED is 20 mA). Permanently connected is interesting as you
> can view the no load state of the battery, at any time.
> <Screen shot 2011-05-18 at 12.02.40 PM.png>
>
>
> --- On Fri, 15/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
>
> From: Lynn Matteson <lynnmatt@jps.net>
> Subject: JabiruEngine-List: Voltmeter advice needed
> To: jabiruengines@yahoogroups.com, jabiruengine-list@matronics.com,
> kitfox-list@matronics.com
> Date: Friday, 15, July, 2011, 1:01 PM
>
> <lynnmatt@jps.net>
>
> I'm looking for a small digital voltmeter.....voltmeter ONLY, if
> possible. I want to install a voltmeter in my panel to monitor my
> timing advance (this uses less than 2 volts). I realize that I can
> buy a multimeter, but I don't want to have to figure out what to do
> to make all the other functions go away and leave me with ONLY the
> voltage reading. This way I hope to be able to mount just the
> display somewhere on the panel (I'm running out of room) and read
> only voltage, which will be under 2 volts in this application.
> Anybody know of one, or able to steer me in the right direction?
>
> I have a couple of digital multimeters, but looking inside and
> seeing all the extra crap that I don't need, made me decide that
> there must be an easier way.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
> vigator?JabiruEngine-List" target="_blank">http://www.matronics.com/
> Navig========================http://www.matronics.com/contribution
>
>
Message 5
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| Subject: | Re: Voltmeter advice needed |
Have you considered using an analog voltmeter instead of the digital
one? Analog meters (round things) don't require any power to operate.
You just need to get one with the right range of voltage or convert your
input voltage to the one needed by the meter with a simple voltage
divider (two resistors). I don't have a particular meter in mind, but
there are oodles of them available from the normal electronics
distributors like DigiKey.
Paul
Camas, WA
On 7/15/2011 5:36 AM, Lynn Matteson wrote:
>
> Thanks for the link, Keith, but that one won't work...specs say: At
> voltages below 4.0V d.c., the LCD will display "LO" and will
> ultimately go blank.
Message 6
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| Subject: | Re: Voltmeter advice needed |
Thanks for the suggestion, Paul, but I'd prefer a digital, because
viewing an analog needle and trying to pinpoint a specific number
might be kinda hard. I can imagine a lot of head movement (mine) to
try to determine just what number or line the needle was pointing to.
It might just be that after this series of test flights is over, I
might not be looking at the thing anyway. If I didn't explain, this
device will read out in tenths and hundredths of volts, which will
relate to the ignition timing of my engine, so I want to be able to
see a number quickly (and positively) to report back to Electroair
just what their MAP sensor is doing to the engine...or FOR the
engine, might be a better way to say it. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1137 hrs (since
3-27-2006)
On Jul 15, 2011, at 10:55 AM, Paul Mulwitz wrote:
>
> Have you considered using an analog voltmeter instead of the
> digital one? Analog meters (round things) don't require any power
> to operate. You just need to get one with the right range of
> voltage or convert your input voltage to the one needed by the
> meter with a simple voltage divider (two resistors). I don't have
> a particular meter in mind, but there are oodles of them available
> from the normal electronics distributors like DigiKey.
>
> Paul
> Camas, WA
>
> On 7/15/2011 5:36 AM, Lynn Matteson wrote:
>>
>> Thanks for the link, Keith, but that one won't work...specs
>> say: At voltages below 4.0V d.c., the LCD will display "LO" and
>> will ultimately go blank.
>
>
Message 7
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| Subject: | Re: Voltmeter advice needed |
Hi Lynn,
I know the round gauge sounds old fashioned, but if you get stuck on the
fancy new digital approach you might find the round gauge is really very
simple to do. All you need to know is the range of readings you want
and then you can get a gauge that reads that range. It is quite normal
for a voltage gauge to read millivolts, and you can convert your input
signal to millivolts to read the way you want.
If you decide you want to go that way and want a little help picking out
the gauge and resistors just fire me an email.
Paul
Camas, Wa
(Retired Electrical Engineer)
On 7/15/2011 10:53 AM, Lynn Matteson wrote:
>
> Thanks for the suggestion, Paul, but I'd prefer a digital, because
> viewing an analog needle and trying to pinpoint a specific number
> might be kinda hard. I can imagine a lot of head movement (mine) to
> try to determine just what number or line the needle was pointing to.
> It might just be that after this series of test flights is over, I
> might not be looking at the thing anyway. If I didn't explain, this
> device will read out in tenths and hundredths of volts, which will
> relate to the ignition timing of my engine, so I want to be able to
> see a number quickly (and positively) to report back to Electroair
> just what their MAP sensor is doing to the engine...or FOR the engine,
> might be a better way to say it. : )
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: flying with "Ramcharger" intake manifold...1137 hrs (since
> 3-27-2006)
>
>
> On Jul 15, 2011, at 10:55 AM, Paul Mulwitz wrote:
>
>>
>> Have you considered using an analog voltmeter instead of the digital
>> one? Analog meters (round things) don't require any power to
>> operate. You just need to get one with the right range of voltage or
>> convert your input voltage to the one needed by the meter with a
>> simple voltage divider (two resistors). I don't have a particular
>> meter in mind, but there are oodles of them available from the normal
>> electronics distributors like DigiKey.
>>
>> Paul
>> Camas, WA
>>
>> On 7/15/2011 5:36 AM, Lynn Matteson wrote:
>>>
>>> Thanks for the link, Keith, but that one won't work...specs say:
>>> At voltages below 4.0V d.c., the LCD will display "LO" and will
>>> ultimately go blank.
>>
>>
>>
>>
>
>
Message 8
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| Subject: | Re: Voltmeter advice needed |
Thanks for the offer, Paul. The problem with round gauges is I'm
running out of room on the panel...short of hanging something below,
and that's not all that roomy either. I thought that the digital
rectangular readout would be smaller, and I thought I'd have more
choices of where to put it. After I meet with my local elec-guru
tomorrow, I'll have a better idea of what to do.
Until the last few years, I'd have bent over backwards to install a
steam gauge/round gauge, hating the word digital (we had a guy in the
office who kept repeating "It's a digital world, it's a digital
world", until I'd have liked to strangle him...but I'm getting
better, The doctors say they'll release me if I can say "I love
digital" without gagging. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1139 hrs (since
3-27-2006)
On Jul 15, 2011, at 3:41 PM, Paul Mulwitz wrote:
>
> Hi Lynn,
>
> I know the round gauge sounds old fashioned, but if you get stuck
> on the fancy new digital approach you might find the round gauge is
> really very simple to do. All you need to know is the range of
> readings you want and then you can get a gauge that reads that
> range. It is quite normal for a voltage gauge to read millivolts,
> and you can convert your input signal to millivolts to read the way
> you want.
>
> If you decide you want to go that way and want a little help
> picking out the gauge and resistors just fire me an email.
>
> Paul
> Camas, Wa
> (Retired Electrical Engineer)
Message 9
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| Subject: | Re: Voltmeter advice needed |
How about putting a 3 or 6 Volt lithium AA battery in series with the meter
.- If you use the 6 volt cell you would be reading- 8 instead of two vo
lts which should be no big deal.- The batteries would only draw current w
hen the meter is on and a typical current draw is only 1 ma.- The AA's wi
ll last years. There are a number of small digital meters available in the
Electric R/C field and they read to the 100th of a volt.- I have one that
allows me to set is so bright blue LED's flash when the voltage goes below
12.5 volts.- It can be set to any voltage- you like.- If you like th
e idea I can send you some links.=0A=0AEd=0A=0A=0A=0A______________________
__________=0AFrom: Lynn Matteson <lynnmatt@jps.net>=0ATo: jabiruengine-list
@matronics.com=0ASent: Friday, July 15, 2011 4:30:35 PM=0ASubject: Re: Jabi
ruEngine-List: Voltmeter advice needed=0A=0A--> JabiruEngine-List message p
osted by: Lynn Matteson <lynnmatt@jps.net>=0A=0AThanks for the offer, Paul.
The problem with round gauges is I'm running out of room on the panel...sh
ort of hanging something below, and that's not all that roomy either. I tho
ught that the digital rectangular readout would be smaller, and I thought I
'd have more choices of where to put it. After I meet with my local elec-gu
ru tomorrow, I'll have a better idea of what to do.=0A=0AUntil the last few
years, I'd have bent over backwards to install a steam gauge/round gauge,
hating the word digital (we had a guy in the office who kept repeating "It'
s a digital world, it's a digital world", until I'd have liked to strangle
him...but I'm getting better, The doctors say they'll release me if I can s
ay "I love digital" without gagging. : )=0A=0ALynn Matteson=0AKitfox IV Spe
edster, taildragger=0AJabiru 2200, #2062=0APrince prop 64 x 30, P-tip=0AEle
ctroair direct-fire ignition system=0ARotec TBI-40 injection (sleeved to 36
mm)=0AStatus: flying with "Ramcharger" intake manifold...1139 hrs (since 3-
27-2006)=0A=0A=0A=0A=0AOn Jul 15, 2011, at 3:41 PM, Paul Mulwitz wrote:=0A
> =0A> Hi Lynn,=0A> =0A> I know the round gauge sounds old fashioned, but i
f you get stuck on the fancy new digital approach you might find the round
gauge is really very simple to do.- All you need to know is the range of
readings you want and then you can get a gauge that reads that range.- It
is quite normal for a voltage gauge to read millivolts, and you can conver
t your input signal to millivolts to read the way you want.=0A> =0A> If you
decide you want to go that way and want a little help picking out the gaug
e and resistors just fire me an email.=0A> =0A> Paul=0A> Camas, Wa=0A> (Ret
==
Message 10
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| Subject: | Re: Voltmeter advice needed |
I suspect the display wants "Regulated" 5 volts as most digital circuits do.
You can create this from the aircraft power with a small circuit made up
of a few resistors, a capacitor, and a small voltage regulator. You
probably want a 78L05 regulator. This is a three pin device that looks
like a plastic transistor. A voltage divider would be a good idea to
reduce your aircraft power (11 to 14 volts?) down to around 7 or 8 volts
so the regulator doesn't need to dissipate all the voltage. The
capacitor goes on the 5V output of the regulator to keep it low on noise.
This is the price you pay for using a digital display. You still need
to deal with the issue of presenting the display with an input signal
that will make the display show what you want. Rather than a simple
display, you really want a voltmeter. I don't know if that is what you
have identified.
good luck,
Paul
Camas, WA
On 7/15/2011 6:06 PM, Ed D'Antoni wrote:
> How about putting a 3 or 6 Volt lithium AA battery in series with the
> meter. If you use the 6 volt cell you would be reading 8 instead of
> two volts which should be no big deal. The batteries would only draw
> current when the meter is on and a typical current draw is only 1 ma.
> The AA's will last years. There are a number of small digital meters
> available in the Electric R/C field and they read to the 100th of a
> volt. I have one that allows me to set is so bright blue LED's flash
> when the voltage goes below 12.5 volts. It can be set to any voltage
> you like. If you like the idea I can send you some links.
>
> Ed
Message 11
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| Subject: | Re: Voltmeter advice needed |
Ed-
Thanks....I'll let you know if I need a link after I talk to a local
electronics guy in our EAA chapter tomorrow. I have a Hobbico digital
voltmeter (from my R/C days) which may become the display screen, and
it uses a 9-volt power supply. If my friend can make this display and
the associated bits (left after stripping the meter from the case)
work, my problem will be solved. This meter also reads to 1/100th of
a volt.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1139 hrs (since
3-27-2006)
On Jul 15, 2011, at 9:06 PM, Ed D'Antoni wrote:
> How about putting a 3 or 6 Volt lithium AA battery in series with
> the meter. If you use the 6 volt cell you would be reading 8
> instead of two volts which should be no big deal. The batteries
> would only draw current when the meter is on and a typical current
> draw is only 1 ma. The AA's will last years. There are a number of
> small digital meters available in the Electric R/C field and they
> read to the 100th of a volt. I have one that allows me to set is
> so bright blue LED's flash when the voltage goes below 12.5 volts.
> It can be set to any voltage you like. If you like the idea I can
> send you some links.
>
> Ed
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| Subject: | Re: Voltmeter advice needed |
Have a look at this - they have several ranges available
http://www.lascarelectronics.com/pdf-usb-datalogging/data-logger05990920012
77713009.pdf
Regards
Keith
--- On Sat, 16/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
From: Lynn Matteson <lynnmatt@jps.net>
Subject: Re: JabiruEngine-List: Voltmeter advice needed
Thanks for the link, Keith, but that one won't work...specs say:- - At
voltages below 4.0V d.c., the LCD will display "LO" and will ultimately go
blank.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop 64 x 30, P-tip
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1137 hrs (since 3-27-200
6)
On Jul 15, 2011, at 12:06 AM, Keith Pickford wrote:
> Hi Lynn
>
> Have copied below one that I am about to fit, quite small
>
> Regards
>
> Keith
>
> I suggest this one as it is clear and small and easy to mount. This is wh
at we have in the boat, permanently running as it only draws 3mA (a LED is
20 mA).- Permanently connected is interesting as you can view the no load
state of the battery, at any time.
> <Screen shot 2011-05-18 at 12.02.40 PM.png>
>
>
> --- On Fri, 15/7/11, Lynn Matteson <lynnmatt@jps.net> wrote:
>
> From: Lynn Matteson <lynnmatt@jps.net>
> Subject: JabiruEngine-List: Voltmeter advice needed
> To: jabiruengines@yahoogroups.com, jabiruengine-list@matronics.com, kitfo
x-list@matronics.com
> Date: Friday, 15, July, 2011, 1:01 PM
>
>
> I'm looking for a small digital voltmeter.....voltmeter ONLY, if possible
.. I want to install a voltmeter in my panel to monitor my timing advance (t
his uses less than 2 volts). I realize that I can buy a multimeter, but I d
on't want to have to figure out what to do to make all the other functions
go away and leave me with ONLY the voltage reading. This way I hope to be a
ble to mount just the display somewhere on the panel (I'm running out of ro
om) and read only voltage, which will be under 2 volts in this application.
Anybody know of one, or able to steer me in the right direction?
>
> I have a couple of digital multimeters, but looking inside and seeing all
the extra crap that I don't need, made me decide that there must be an eas
ier way.
>
> Lynn Matteson
> Kitfox IV Speedster, taildragger
> Jabiru 2200, #2062
> Prince prop 64 x 30, P-tip
> Electroair direct-fire ignition system
> Rotec TBI-40 injection (sleeved to 36mm)
> Status: flying with "Ramcharger" intake manifold...1137 hrs (since vigato
r?JabiruEngine-List" target="_blank">http://www.matronics.com/Navig==
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