Posted by MarkB_MI on December 06, 2012 at 02:36:57 from (75.241.74.19):
In Reply to: Re: truck eletric drain posted by OLarry from MD on December 05, 2012 at 19:17:32:
>Nothing i use is digital.
OK, thanks for sharing that information. So what is the input impedance of your analog voltmeter?
Analog voltmeters don't have an input impedance spec, instead they have a "sensitivity" spec, which is given in ohms per volt. Your meter should have this value printed somewhere on the panel. But let's assume you have a cheap POS meter with a 10K ohm/volt sensitivity and you're using the 20 volt range. That gives an input impedance of 10K x 20 = 200 kilohms. So if you're reading two volts, the current is 2 / 200K = 10 microamps.
Holy Toledo, you better do something about that! At ten microamps, your battery will be dead in 1142 years!
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
