WEdgar
AP; IA
What is the maximum Voltage the D10A will accurately display on a 28 Volt system
D10A Voltage
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The EFIS-D10A's will measure any voltage between its 10-30V spec'd power range. There's nothing magical that changes above that - strictly speaking. In other words, it will continue to read accurately, until the point when you start frying things (in other words, 30V is the "spec", don't feed it voltage higher than that intentionally)
WEdgar
AP; IA
Did you connect the D10A to a power supply and verify that voltage range of 10-30v including 10ths. ?
D10A will display voltages correctly in 10th at 24.4 volts; but when the voltage increases to 28.4 or 28.6 the D10A displays 28.0. Please verify what the D10A displays when power supply is 28.4-THANKS
D10A will display voltages correctly in 10th at 24.4 volts; but when the voltage increases to 28.4 or 28.6 the D10A displays 28.0. Please verify what the D10A displays when power supply is 28.4-THANKS
WEdgar
AP; IA
Is Dynon abandoning support for the D10A or just busy; this voltage question has been setting on the forum for over a week, I'd sure appreciate a correct tested response.
We don't have a formal specification for the accuracy/precision of the voltmeter. But, checking across the voltage range, it should be within a couple of 10ths of a volt across the 10-30v rage.
Note that you may have voltage drop across the length of your wires, so if you're not measuring close to or at the instrument connector, the voltage at your power supply may be different than the voltage that the instrument sees.
Note that you may have voltage drop across the length of your wires, so if you're not measuring close to or at the instrument connector, the voltage at your power supply may be different than the voltage that the instrument sees.
WEdgar
AP; IA
The comparable wire lengths are within a couple of inches, that would not provide a significant variation.
Kindly provide the D10A voltage reading when the power supply is specifically set at the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8.
THANKS
Kindly provide the D10A voltage reading when the power supply is specifically set at the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8.
THANKS
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Each D10A has its own voltage calibration, so doing this on a specific unit doesn't show what all units will do.
Yesterday, we tested 4 random units at 26, 27, 28, and 30 volts, and at voltages in-between, and they were all within 0.2 volts at all those voltages and throughout the range.
We were comparing to the voltage right at the D25 connector to remove the ohmic losses along the wires.
Yesterday, we tested 4 random units at 26, 27, 28, and 30 volts, and at voltages in-between, and they were all within 0.2 volts at all those voltages and throughout the range.
We were comparing to the voltage right at the D25 connector to remove the ohmic losses along the wires.
WEdgar
AP; IA
Is there a reason the previously requested has not been conducted:
"Kindly provide the D10A voltage reading when the power supply is specifically set at (each of) the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8."
THANKS
"Kindly provide the D10A voltage reading when the power supply is specifically set at (each of) the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8."
THANKS
Since there is some minor unit-to-unit variation, us publishing a table for a particular unit isn't going to be too helpful for you on a known-good unit.
At any of those voltages, you should see that voltage, plus or minus a small amount. Again, there isn't a firm specification here, but anything more than a couple of tenths of volts different would be unexpected. You shouldn't see flat spots in the curve, or other nonlinearities either.
Actually, though, your results from the test you propose might be interesting, if your unit is abnormal. Can you post the results of your proposed test on your unit?
At any of those voltages, you should see that voltage, plus or minus a small amount. Again, there isn't a firm specification here, but anything more than a couple of tenths of volts different would be unexpected. You shouldn't see flat spots in the curve, or other nonlinearities either.
Actually, though, your results from the test you propose might be interesting, if your unit is abnormal. Can you post the results of your proposed test on your unit?
WEdgar
AP; IA
The future of aviation instruments is with electronic instruments; but this requires some integrity.
The following request has been made numerous times:
""Kindly provide the D10A voltage reading when the power supply is specifically set at (each of) the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8.""
It may be Dynon is very busy, but Dynon customers deserve to know the good but also if there are problems. From my Dynon experienceS and some of the other forum members Dynon seems to have little concern for customers time; smoke and mirrors is not appreciated.
If the results of this test are not posted, it will be assumed this is just ANOTHER of the featureS the D10A fails in providing accurate information.
For the sake of Dynon customers, these problems will be confronted and corrected.
The following request has been made numerous times:
""Kindly provide the D10A voltage reading when the power supply is specifically set at (each of) the following values: 28.0; 28.1; 28.2; 28.3; 28.4; 28.5; 28.6; 28.7; 28.8.""
It may be Dynon is very busy, but Dynon customers deserve to know the good but also if there are problems. From my Dynon experienceS and some of the other forum members Dynon seems to have little concern for customers time; smoke and mirrors is not appreciated.
If the results of this test are not posted, it will be assumed this is just ANOTHER of the featureS the D10A fails in providing accurate information.
For the sake of Dynon customers, these problems will be confronted and corrected.
rvator51
Member
Dynon gave you an answer in Reply #8. It sounds like your unit may be abnorml. Get with Dynon support and get it resolved.
WEdgar
AP; IA
Ye it's an answer, but not an accurate answer to the actual question.
Maybe you could help, I see you have a D10(is it a D10A), is your system 28v; if so what voltage reading does your unit display in cruise, kindly specify in 10ths (ie: 28.2 28.6 etc.).
For some reason the D10A will display 28.0 but not more.
Either Dynon has not had time to test a unit in the 28v range or for what ever reason has not posted the results. This has to be a fairly simple and easy test to verify voltages the D10A will display; instead of wasting customers time.
Maybe you could help, I see you have a D10(is it a D10A), is your system 28v; if so what voltage reading does your unit display in cruise, kindly specify in 10ths (ie: 28.2 28.6 etc.).
For some reason the D10A will display 28.0 but not more.
Either Dynon has not had time to test a unit in the 28v range or for what ever reason has not posted the results. This has to be a fairly simple and easy test to verify voltages the D10A will display; instead of wasting customers time.
jakej
Well-Known Member
Get over it, or at least contact support directly. It's obvious the some of us 'posters' don't know the answer you want & insinuating Dynon uses smoke & mirrors doesn't help your cause, IMO.
It sounds like your unit may be behaving abnormally. Please reach out to our support team at support at dynonavionics dot com or 425-402-0433 so that we can help you more directly with this issue.
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We did re-run the test from Tuesday as well. Back on Wednesday, we said:
As designers of the D10A, we knew that checking at 28 and 30 meant that voltages in-between would also be correct. However, for completeness, we went back and checked at every 10th at 28 volts. In every case the voltage was exactly right to the tenth. The D10A is an accurate voltmeter to 30V.
As designers of the D10A, we knew that checking at 28 and 30 meant that voltages in-between would also be correct. However, for completeness, we went back and checked at every 10th at 28 volts. In every case the voltage was exactly right to the tenth. The D10A is an accurate voltmeter to 30V.
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