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AW: Switch for Hobbs.

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Alfred Buess

Joined: 11 Jan 2006
Posts: 67

Posted: Wed May 07, 2008 10:21 am Post subject: AW: Switch for Hobbs.

Mike, 

Comco Ikarus (http://www.comco-ikarus.de/index_english.html, I have no commercial relations to them, but can  recommend their excellent customer support) sells an electronic filter  produced by Utz Schicke (producer of the Schicke GR6 regulator for Rotax  engines) which hooks directly to the AC wires of the alternator. Whenever the  alternator is in action (even with the regulator shut off), the Hobbs (or an  other brand of hour meter) gets DC power and is active too. It costs 65 Euros. 

Alfred 

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨ 

Alfred Buess, CH-3052 Zollikofen,  Switzerland 

E-Mail: ykibuess(at)bluewin.ch 

Europa XS #097, Monowheel, Foam wing, Rotax 912ULS,  Airmaster 332 CS



   Von: owner-europa-list-server(at)matronics.com  [mailto:owner-europa-list-server(at)matronics.com] Im Auftrag von Graeme  Smith

Gesendet: Mittwoch, 7. Mai 2008 15:59

An:  europa-list(at)matronics.com

Betreff: Re: Switch for  Hobbs.

 

 I used a small vacuum switch from Radio Spares connected to the  engine-driven vacuum pump

  

 Graeme Smith

 G-CCGW

 



 

 2008/5/5 Mike Gamble <mp.gamble(at)tiscali.co.uk (mp.gamble(at)tiscali.co.uk)>:

 [quote]      What are chaps using to switch their hobbs timer    on with engine start? Is there an alternative to the n/o oil pressure switch?    - perhaps sensing alternator output.

   Thanks

   Mike Gamble

 	  Quote: 	
		  

	




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rampil

Joined: 04 May 2007
Posts: 870

Posted: Wed May 07, 2008 3:12 pm Post subject: Re: AW: Switch for Hobbs.

The simplest device requiring no connections at all is the vibration-

sensitive timer made by ENM. I have 17 hours on mine so far after 

purchase at SnF this year. Seems to work. Again, no connection to 

motor, to battery or to anything else. Just stick it on the panel where

you want it! I bought mine from PSA Enterprises of Lakeland FL for $22.00

They are at http://www.psaenterprises.com/



The product specs are at:

http://enmco.thomasnet.com/viewitems/enm-counting-instruments-lcd-hour-meter/t54-vibration-activated-hour-meter?&bc=100|1005|3001037&forward=1



Enjoy!

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Ira N224XS

craigb(at)onthenet.com.au
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Posted: Wed May 07, 2008 3:53 pm Post subject: AW: Switch for Hobbs.

thats quite good isnt it, I think i will go that way



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rowil(at)clara.net
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Posted: Fri May 09, 2008 4:28 am Post subject: AW: Switch for Hobbs.

At 2008-05-07 16:12 -0700 rampil wrote:



 	  Quote: 	
		  The simplest device requiring no connections at all is the vibration-

sensitive timer made by ENM


	


Ira - sounds great ... then I realised that there is no way to turn 

it off, and so it will probably record road time in the trailer for 

me as well as air time!



regards



Rowland

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rampil

Joined: 04 May 2007
Posts: 870

Posted: Fri May 09, 2008 9:13 am Post subject: Re: AW: Switch for Hobbs.

Rowland,

That could well be a problem.



There actually a loop of wire in the back of the meter which you

cut to activate the timer. You could splice in a switch to detect wings

on, airspeed>60, etc. If trailering is frequent though, I'd look for a

different solution.  N224xs lives in a hangar far from my old

earthquake shaken home of KSQL

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