|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
10-16-2021, 08:01 PM | #1 |
Senior Member
Join Date: Dec 2014
Location: langley, wa.
Posts: 642
|
Generator charging revisited
Ok, using a digital voltmeter, set on 20v dc. Wiring disconnected output side of cut out reads 8+ volts. Connecting wiring to cut out to check voltage the volt meter goes bannanas. What is going on
|
10-16-2021, 08:28 PM | #2 |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
|
Re: Generator charging revisited
The generator can put out 20v and yours goes nutz probably because of the 'dirty' signal. An old analog meter will probably work.
|
Sponsored Links (Register now to hide all advertisements) |
|
10-16-2021, 08:37 PM | #3 |
Senior Member
Join Date: May 2010
Location: Concord CA
Posts: 637
|
Re: Generator charging revisited
Unless you a high quality DVM, like Patrick says use an analog Voltmeter.
|
10-16-2021, 09:29 PM | #4 |
Senior Member
Join Date: Dec 2014
Location: langley, wa.
Posts: 642
|
Re: Generator charging revisited
|
10-17-2021, 07:21 AM | #5 |
Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
|
Re: Generator charging revisited
Another option is to add a capacitor across the DVM leads. A condensor normally used for the ignition can be used. If you use another capacitor make sure it is installed correctly. An electronic capacitor will have a negative and positive side. You can just leave it installed if you want because it will eliminate most electrical noise coming out of your generator. You may be able to hide it inside the cutout or you can just install it anywhere, like inside the instrument panel. Just connect the capacitor between the lead coming from the generator to ground.
__________________
A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
10-17-2021, 08:47 AM | #6 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,431
|
Re: Generator charging revisited
Sponsored Links (Register now to hide all advertisements)
|
10-17-2021, 10:19 AM | #7 |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,145
|
Re: Generator charging revisited
Do not run a generator with output connections open. With no load it tries to produce infinite voltage. (And burns out.)
|
10-17-2021, 10:47 AM | #8 |
Senior Member
Join Date: Dec 2014
Location: langley, wa.
Posts: 642
|
Re: Generator charging revisited
|
10-17-2021, 11:28 AM | #9 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,044
|
Re: Generator charging revisited
The DMM will also pick up RFI from the ignition system causing it to go nuts.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 10-17-2021 at 11:29 AM. Reason: Corrected typo |
10-18-2021, 09:05 AM | #10 | |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,145
|
Re: Generator charging revisited
Quote:
If you're trying to check generator voltage out, probe as close to the battery as you can get. It's a great noise filter. |
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|