Inaccurate Voltage and Watt readings

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Teken
Posts: 2700
Joined: Wed Dec 15, 2010 4:09 pm
Location: The Bad Lands

Re: Inaccurate Voltage and Watt readings

Post by Teken » Thu Mar 11, 2021 1:48 pm

crazydane wrote: ↑
Wed Mar 10, 2021 11:08 am
 I'm pretty sure I figured out the issue. I took a closer look at the receptacle that is powering the 1240 (and Etherport) and traced the feeder back to a UPS...

Took a look at the UPS logs and sure enough:

Image

So once the input voltage reaches a certain value, it "compensates for a high input voltage". I modified the config to allow the output to rise to 135 volts (was set to 127 volts), so that should address the issue.

Sorry to have taken us on a wild goose chase on this one!
Just to be clear the PT or Power supply is connected the APC UPS? I don't see how the power supply being connected to a UPS would cause that.
Teken . . .

My ongoing projects thread: http://www.brultech.com/community/viewt ... ?f=2&t=929
Buy me a cup of coffee: https://www.paypal.me/Teken https://gfinotify.com/ Discount Code: PC10
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ben
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Posts: 4262
Joined: Fri Jun 04, 2010 9:39 am

Re: Inaccurate Voltage and Watt readings

Post by ben » Thu Mar 11, 2021 2:52 pm

Teken wrote: ↑
Thu Mar 11, 2021 1:48 pm
crazydane wrote: ↑
Wed Mar 10, 2021 11:08 am
 I'm pretty sure I figured out the issue. I took a closer look at the receptacle that is powering the 1240 (and Etherport) and traced the feeder back to a UPS...

Took a look at the UPS logs and sure enough:

So once the input voltage reaches a certain value, it "compensates for a high input voltage". I modified the config to allow the output to rise to 135 volts (was set to 127 volts), so that should address the issue.

Sorry to have taken us on a wild goose chase on this one!
Just to be clear the PT or Power supply is connected the APC UPS? I don't see how the power supply being connected to a UPS would cause that.
It's an ECM-1240 so the power supply is also the PT.
Ben
Brultech Research Inc.
E: ben(at)brultech.com
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Teken
Posts: 2700
Joined: Wed Dec 15, 2010 4:09 pm
Location: The Bad Lands

Re: Inaccurate Voltage and Watt readings

Post by Teken » Thu Mar 11, 2021 2:56 pm

ben wrote: ↑
Thu Mar 11, 2021 2:52 pm
Teken wrote: ↑
Thu Mar 11, 2021 1:48 pm
crazydane wrote: ↑
Wed Mar 10, 2021 11:08 am
 I'm pretty sure I figured out the issue. I took a closer look at the receptacle that is powering the 1240 (and Etherport) and traced the feeder back to a UPS...

Took a look at the UPS logs and sure enough:

So once the input voltage reaches a certain value, it "compensates for a high input voltage". I modified the config to allow the output to rise to 135 volts (was set to 127 volts), so that should address the issue.

Sorry to have taken us on a wild goose chase on this one!
Just to be clear the PT or Power supply is connected the APC UPS? I don't see how the power supply being connected to a UPS would cause that.
It's an ECM-1240 so the power supply is also the PT.
Gotcha!
Teken . . .

My ongoing projects thread: http://www.brultech.com/community/viewt ... ?f=2&t=929
Buy me a cup of coffee: https://www.paypal.me/Teken https://gfinotify.com/ Discount Code: PC10
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