If the problem isn't cause by RF transmissions, then it's possibly a dicky
pot inside the instrument.
Take it apart, and you'll find a (not fabulous quality) pcb-mounted
potentiometer in there responsible for keeping the calibration. Give it a
stiff talking to, a squirt of WD 40 and a wiggle, then re-cal it.
Alternatively send it back to Skydrive.
Good luck
Dave Simpson
----- Original Message -----
From: Cripps, David <david.cripps@spsystems.com>
Subject: Rotax tacho problems/wanted
> My standard Rotax analogue tacho has just started playing up by sometimes
flickering at rpms above about 4500 (giving the appearance of 'kicking' or
jumping up and down by 100 or so rpm) and not giving steady readings (when
the engine is running steady as a rock). Has anyone else experienced this
and what did you do to fix it? I have tried to find loose connections but
there don't appear to be any.
>
> If it needs changing out, does anyone have a spare basic 912/912S/914
analogue tacho that they don't need, perhaps because you've upgraded to an
EFIS type system?
>
> Any help gratefully received.
>
> David Cripps
> GBWJH
>
>
****************************************************************************
******************
> All sales of goods are subject to the terms and conditions of sale (the
Conditions)
> of SP Systems (the Company) which are available on request from the
Company
> or may be viewed on our Website (http://www.spsystems.com).
>
> Any advice given by the Company in connection with the sale of goods is
given
> in good faith but the company only warrants that advice in writing is
given with
> reasonable skill and care. All advice is otherwise given subject to the
Conditions.
>
> The contents of this message and any attachments are confidential and
> are intended solely for the attention and use of the addressee only.
> Information contained in this message may be subject to legal,
> professional or other privilege or may otherwise be protected by other
> legal rules. This message should not be copied or forwarded to any other
> person without the express permission of the sender. If you are not the
> intended recipient you are not authorised to disclose, copy, distribute
> or retain this message or any part of it.
>
> [Redirected via the newforum list]
>
|