 Voltmeter Behavior, Verify Accuracy |
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| Superhawk996 |
 Jun 24 2024, 07:28 PM
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914 Guru  Group: Members Posts: 7,219 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch 
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Starting a new thread in response to @emeryGT 350 comment in another thread as follow up
Here’s the background:  |
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| emerygt350 |
Jun 25 2024, 09:25 AM
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#2
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Advanced Member Group: Members Posts: 3,016 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Just checked the grounds engine to body engine to post, post to wall etc, , all good, less than 0.1 resistance everywhere. Didn't pull the gauge yet to check that. Gotta go shopping first.
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| Superhawk996 |
Jun 25 2024, 09:29 AM
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#3
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914 Guru Group: Members Posts: 7,219 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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QUOTE(emerygt350 @ Jun 25 2024, 11:25 AM)  Just checked the grounds engine to body engine to post, post to wall etc, , all good, less than 0.1 resistance everywhere. Didn't pull the gauge yet to check that. Gotta go shopping first. .1 ohm x 10amp draw = 1v drop. Even 0.05 ohm x 20 amp load = 1v drop. Unacceptable Measure voltage drop across the cable while cranking to get an accurate assessment of resistance. Not sure how you’re wired to battery. Separate independent wire or are you pulling though one of the smaller OEM leads that come off battery positive? |
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Posts in this topic
Superhawk996 Voltmeter Behavior Jun 24 2024, 07:28 PM
Superhawk996 I have two gauges, tested both at a variety of vol... Jun 24 2024, 07:34 PM Superhawk996 Gauge #1
Jun 24 2024, 07:36 PM emerygt350 Very interesting! Could you do some readings ... Jun 24 2024, 07:39 PM Superhawk996 Yup will do
Here’s 14v. Jun 24 2024, 07:42 PM Superhawk996 RE: Voltmeter Behavior Jun 24 2024, 07:46 PM Superhawk996 Gauge #1 at 13.7v
Gauge #2 at full scale - wa... Jun 24 2024, 07:54 PM Superhawk996 Gauge #2 12v nominal Jun 24 2024, 08:09 PM windforfun What's the problem? How exactly do you expect... Jun 24 2024, 08:11 PM
Superhawk996
What's the problem? How exactly do you expec... Jun 24 2024, 08:20 PM windforfun Copy that. The power supply reads out to one plac... Jun 24 2024, 08:40 PM Superhawk996
Copy that. The power supply reads out to one pla... Jun 24 2024, 10:18 PM windforfun
Copy that. The power supply reads out to one pl... Jun 25 2024, 09:03 AM Superhawk996
Recognize anything?
@windforfun
Nice test ... Jun 25 2024, 09:33 AM emerygt350 I was interested in the behavior of the voltage me... Jun 25 2024, 04:46 AM mb911 Good data. Unfortunately mine is right on. Jun 25 2024, 05:17 AM 914Sixer 60's-70's are what I call ball park gauges... Jun 25 2024, 05:53 AM emerygt350 I think of it more as a dummy light or perhaps a ... Jun 25 2024, 06:23 AM Superhawk996
I should double check my ground shouldn't i... Jun 25 2024, 06:32 AM GregAmy Unless you want to rewire it directly to the batte... Jun 25 2024, 07:11 AM emerygt350
Unless you want to rewire it directly to the batt... Jun 25 2024, 08:44 AM technicalninja Thanks, Superhawk!
The dash meters are FAR mo... Jun 25 2024, 08:08 AM Superhawk996 gauge #1
Delay and damping behavior related to in... Jun 25 2024, 09:53 AM ClayPerrine For what it is worth, I use the stock voltmeter as... Jun 25 2024, 10:31 AM emerygt350
For what it is worth, I use the stock voltmeter a... Jun 25 2024, 11:17 AM rjames emerygt350 might just have a bad gauge. Mine gave ... Jun 25 2024, 10:47 AM Superhawk996
emerygt350 might just have a bad gauge. Mine gave... Jun 25 2024, 11:06 AM emerygt350
[quote name='rjames' post='3153039' date='Jun 25 ... Jun 25 2024, 11:20 AM Superhawk996
[quote name='rjames' post='3153039' date='Jun 25... Jun 25 2024, 11:24 AM Superhawk996 Gauge #2
Slightly different damping behavior. P... Jun 25 2024, 05:18 PM emerygt350 It is interesting how in both cases they behaved b... Jun 25 2024, 07:19 PM Superhawk996
It is interesting how in both cases they behaved ... Jun 25 2024, 07:54 PM emerygt350 I finally dug into the console. I had compared th... Jun 26 2024, 05:02 AM Superhawk996 :trophy:
Now those delays and variable voltage d... Jun 26 2024, 06:08 AM emerygt350
:trophy:
Now those delays and variable voltage ... Jun 26 2024, 06:13 AM |
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