Today's Message Index:
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1. 09:24 AM - Re: Rotax 914 Exhaust Leak (GTH)
2. 01:12 PM - Re: Skysports bendable capacitive probe calibration? (h&jeuropa)
3. 01:39 PM - Re: Skysports bendable capacitive probe calibration? (Rick Moss)
Message 1
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| Subject: | Re: Rotax 914 Exhaust Leak |
Le 25/01/2017 05:13, djaflyact a crit :
> The cockpit readings at idle lowered from 20 to 5 on the ground.
David,
The direct correlation between ball joint tightness and cockpit CO
readings seems to indicate the problem may lie with your firewall.
Of course your exhaust line should be reasonably tight, but it is
impossible to avoid fumes in an engine compartment.
The firewall is there to prevent flames and engine gases from getting
into the cockpit. The firewall should be perfectly gas tight.
*Any* aperture or pass-through in the firewall should be suitably sealed
with fire resistant grommets, putty, bellows, tape, etc.
Not the tiniest hole, slit, crack should be tolerated.
Some info here (only in French I'm afraid ;-)
http://contrails.free.fr/engine_cpf.php
--
Best regards,
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr
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| Subject: | Re: Skysports bendable capacitive probe calibration? |
Clive,
I looked at the Sky Sports website and it appears your probe will output a voltage
proportional to the fuel level. There is apparently a full and empty adjustment
screw. If you are going to continue to use the VDO gauge, measure the
voltage at the S terminal of the gauge when it indicates empty and when it indicates
FULL fuel. If they are both less than 5 volts, you can connect directly
to your EIS. If they exceed 5 volts, you will need to make a simple voltage
divider with two resistors.
If the voltage is 0 when the tank is empty and 5 volts when the tank is FULL (18
US gal), your SF would be 90 and OFFSET would be 0 using the Forward, Decimal
feature of the EIS.
If your voltages are different or you want other than US gal, I've attached a document
that explains how to calculate SF and OFF.
If you still have questions, please ask.
Jim Butcher
N241BW
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465484#465484
Attachments:
http://forums.matronics.com//files/eis_aux_input_config_185.docx
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| Subject: | Re: Skysports bendable capacitive probe calibration? |
Please note that the output of a capacitance sender will differ greatly between
Avgas, UL91 and mogas.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465486#465486
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