 Voltmeter Behavior, Verify Accuracy |
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| Superhawk996 |
 Jun 24 2024, 07:28 PM
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#1
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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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| rjames |
Jun 25 2024, 10:47 AM
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#2
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I'm made of metal Group: Members Posts: 4,313 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest
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emerygt350 might just have a bad gauge. Mine gave inconsistent readings, started reading ~5 volts under, then later 10 under, and then ultimately nothing. Tapping it once in a while would bring it back to life, but eventually it completely died.
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| Superhawk996 |
Jun 25 2024, 11:06 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(rjames @ Jun 25 2024, 12:47 PM)  emerygt350 might just have a bad gauge. Mine gave inconsistent readings, started reading ~5 volts under, then later 10 under, and then ultimately nothing. Tapping it once in a while would bring it back to life, but eventually it completely died. Anyone have one opened up? I’d be curious to verify what’s doing the damping. I’m assuming it’s just a little ceramic disc capacitor via RC circuit. However based on how this one gauge will linger at 16v position while the other doesn’t (as long) I suspect there is some difference in capacitance and/or resistor values between my two gauges. |
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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 emerygt350 Just checked the grounds engine to body engine to ... Jun 25 2024, 09:25 AM Superhawk996
Just checked the grounds engine to body engine to... Jun 25 2024, 09:29 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 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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