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atsorrento
Joined: 20 Sep 2016 Posts: 9
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Link Posted: Sat Sep 24, 2016 10:09 pm Post subject: Resting volt and amp readings |
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I'm sure this has been answered somewhere so forgive the repeat. My "resting" volts read 245 and amps 3.9. Is that right?
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Sat Sep 24, 2016 10:35 pm Post subject: |
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Voltage is your wall voltage. You can confirm by using a voltmeter in your wall outlet. It can vary based on time of day, how loaded your neighbourhood is, and so forth. For example, in the middle of the summer with air conditioners running everywhere the voltage will sag a bit below the 240V nominal voltage. 245v sounds a bit high, but not unreasonable.
The amps are high. Without the heating elements or pumps running it should be 0.0 to 0.2 or so at most as the other devices in the panel draw little to no current.
Kal
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atsorrento
Joined: 20 Sep 2016 Posts: 9
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Link Posted: Sun Sep 25, 2016 3:50 pm Post subject: |
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Maybe I have the wrong shunt? I did purchase 2 amps and shunts from two different places...one from you and another from eBay. Maybe I have your amp meter matched w/the ebay shunt or something. I'll swap and post my results.
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Sun Sep 25, 2016 4:57 pm Post subject: |
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The amp meter does indeed need to be matched to the shunt. Shunts can have different resistances. For this reason they are usually sold together with the amp meter. If not, you need to match the shunt resistance with the resistance required by the meter.
Kal
_________________ Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
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