|
Tractor Talk Discussion Board |
AMMETER!!!
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by Gerald J. on December 17, 2006 at 19:21:25 from (67.0.103.188):
In Reply to: Voltmeter or Ammeter posted by Aaron Ford on December 17, 2006 at 18:27:09:
An ammeter shows you energy in and out of the battery and that the battery is connected and IS being charged. The voltmeter shows you a system voltage, but generally not the battery terminal voltage, so under charge the voltmeter rises faster than the battery voltage, IF you can tell the difference between 13 and 14 volts which is a tiny part of the scale on many meters. And a voltmeter won't show if the battery is disconnected while running. The starter solenoid will tell you about the state of the battery charge. If its charged it cranks, if not, it clicks. The difference on the voltmeter is the difference between 12 and 11 volts at rest, again a tiny part of the typical automotive volt meter. I've run both, at the same time. Even with a laboratory grade voltmeter, the useful information came from the ammeter, not the voltmeter. It is harder to pass a 100 amp alternator output through a simple ammeter and I'm sure that's why my truck has a volt meter, but with calibration points at only 8 and 18 volts it tells ME less information than a lightbulb does by its glow. I'm not too sure it is anything more than a pointer that moves to a fixed position when the ignition is on, just like the Ford "oil pressure" gauge that is controlled by a switch. Gerald J., Electrical Engineer.
Replies:
Home
| Forums
| Order Support
Today's Featured Article -
Experimental Tractors Article - by Danny Bowes (Dsl). Tractor technology appears to have nearly hit it's pinnacle of development. If you agreed with the subtitle, you are rather mistaken. Quite, actually. As a matter of fact, some of the technology experimented with over 40 years ago makes today's tractor technology seem absolutely stale by comparison. Experimentation, from the most complex assembly to the most simple and mundane component, is as an integral a part of any farm tractor's development
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
Copyright © 1997-2026 Yesterday's Tractor Co.
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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
