My EMS D10 exhibits several anomolies. 1]The resistance fuel level gages will not accept a calibration. 2] The manifold pressure reads a max resulting in no % power reading (I do have OAT installed). 3] The tach reading off the Pmag becomes unstable intermitently. I would like to send the D10 in for complete bench testing. Please email me your suggestions. Many thanks Murray Randall
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D10 malfunction
- Thread starter aeroads
- Start date
- Joined
- Mar 23, 2005
- Messages
- 13,226
Murray,
These sound like 3 separate issues, and none of them sound likely to be problems with the unit. In order:
1) Hard to troubleshoot without a bit more information (what are the values indicated as you calibrate; does the unit tell you that it's not seeing a change in fuel; etc)
2) Very often this is a miswired sensor. We've seen a pretty high incidence of the A/B/C inputs on the MAP sensor getting mixed up.
3) The 10V output on some pmags is very short. Some customers have good luck with it, others need to resort to using an external tach sensor, like the one Van's sells for their own tachometer.
All the same, call our tech support at 425-402-0433 or email them at support at dynonavionics dot com for further help with these issues.
These sound like 3 separate issues, and none of them sound likely to be problems with the unit. In order:
1) Hard to troubleshoot without a bit more information (what are the values indicated as you calibrate; does the unit tell you that it's not seeing a change in fuel; etc)
2) Very often this is a miswired sensor. We've seen a pretty high incidence of the A/B/C inputs on the MAP sensor getting mixed up.
3) The 10V output on some pmags is very short. Some customers have good luck with it, others need to resort to using an external tach sensor, like the one Van's sells for their own tachometer.
All the same, call our tech support at 425-402-0433 or email them at support at dynonavionics dot com for further help with these issues.
How should the EMS-D10 be wired for resistance fuel level? I have the center tap connected to pin 20 and gage base grounded. But no voltage connection, neither 5V nor 12/14V. (Normally I put 12V to one pin of the panel meter, other pin of the meter to the tank resistor center tap with the base grounded.) Many thaks Murray
- Joined
- Mar 23, 2005
- Messages
- 13,226
If it's just basic float resistance probe, there's no auxiliary voltage connection required when using them with Dynon products. Signal wire goes to pin 20 or 21, and ground goes to ground.