VCONTROL temp sensor issue

Hi, i'm having trouble with my vcontrol and the temp sensor. When I first started using it, it worked fine but now when I turn on the heli, the sensor is reading between 300 and 400 degrees c. I've purchased a brand new sensor, but this is doing the same. I have tried both sensors on two different neos but both show the same fault. Is their anyway that my vcontrol is at fault ? could the vcontrol be rebooted or reset ?

Hello,

i don't think it is a VControl issue but we can check the sensors:


Please disconnect them and use a Ohmmeter to measure the resistance (room temperature) between each of the 3 pins.

Measure both.

Black outside to grey outside =
Black outside to black center =
Black center to grey outside =

regards (EN) / Gruss (DE)

Rainer Vetter

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Hi Rainer

Black outside to grey outside is .993
Black outside to centre is 0.00
Black centre to grey outside is 0.00

Same for both my temp sensors

So ok - my thought is something has shortened inside the solder joints under the shrink tubes or the sensor head itself has a internal conduction.

We have usually 1kOhm (as you measured) with a fix resistor between the outer wires and should have a value of approx. 5kOhm at 25°C between centre and grey.

Is there anything to see, especially the insulation at the joint and also the wires at the sensor itself?

regards (EN) / Gruss (DE)

Rainer Vetter

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Posting and answering - please use a PC and a standard keyboard. Answer all questions fully, take the needed time, don't forget probably requested attachments.

Für Posts und Antworten bitte einen PC und eine richtige Taststaur benutzen sowie alle Fragen vollständig abarbeiten. Nehmt Euch Zeit, beantwortet Rückfragen in Ruhe und vollständig.
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Hi
After trying it today it has started to work again , reading temp ok with both new sensors that haven’t been fitted to the model yet !

I’ve checked the resistance again and it is the same readings as I had before. And to get 2 brand new sensors with the same problem is a pretty low chance.

I have had my v control for 2 mouths and I think it’s this what is faulty.

I have also plugged both my sensors into my friends v bar and he’s using a vcontrol touch and it works fine , I’ve also measured the resistance of his temp sensor and get the same results as I got

hi

Is there anymore advice how to fix the problem , or how do I go about getting my vbar control looked at ,like I've said its only 2 mouths old and should be still under warranty

thanks

It is definitely not the VBC and not the NEO.

Measuring 0.00 Ohm means there is something shortened inside the Voltage divider (remove the shrink at the point where the 3/2 cables come together and have a look). Even when the sensor displays wrong but is ok - it must show up any other value than 0 Ohm.

Measuring 1kOhm at one side means that the fix resistor should be ok - and 0.00 on the other side means that either the NTC or its wiring is shortened.

regards (EN) / Gruss (DE)

Rainer Vetter

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Posting and answering - please use a PC and a standard keyboard. Answer all questions fully, take the needed time, don't forget probably requested attachments.

Für Posts und Antworten bitte einen PC und eine richtige Taststaur benutzen sowie alle Fragen vollständig abarbeiten. Nehmt Euch Zeit, beantwortet Rückfragen in Ruhe und vollständig.
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Für Einzelkommunikation bitte ausschließlich Email verwenden! - PN, Messenger, Chat usw. werden nicht bearbeitet.
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Hi Rainer

That’s for getting back in touch.

I’ll strip them down this weekend and have a look

Thanks