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Author Topic: AutoRange Mode  (Read 1326 times)

dcarri32

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AutoRange Mode
« on: July 15, 2019, 04:56:51 AM »
Hi,

I am monitoring the consumption of a device in stanby mode. The device always consumes 37uA. I have activated the autorange mode with the Current Ranger (LPF activated). The problem is that suddenly the LPF is deactivated only and it starts changing to mA with values ​​of 0, when my device consumes uA. At this point, I have to manually press the uA again to continue with the monitoring.

What is the problem?

Thanks
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dcarri32

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Re: AutoRange Mode
« Reply #1 on: July 15, 2019, 06:37:46 AM »
Hi,


He solved my problem. It was simply that I did not configure the autorange mode well.
Now I am monitoring correctly the consumptions but now after a while the Current Rnger turns itself off.
I have it powered with a usb port on my computer.

Thanks
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Edimahler

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Re: AutoRange Mode
« Reply #2 on: August 05, 2019, 09:16:55 AM »
You can just deactivate the auto power off function by hardware. There's a description about it on the LowPowerLab website about the CurrentRanger.

Greetz Simon
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Felix

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Re: AutoRange Mode
« Reply #3 on: August 05, 2019, 09:29:45 AM »
Quote from: dcarri32 on July 15, 2019, 06:37:46 AM
I have it powered with a usb port on my computer.
Be careful, if your USB connection is earth grounded, don't attach anything else that is earth grounded or you can damage the CR.
Also, note that USB will always couple some (or more!) noise into the CR.

I would only power the CR the way it was designed and recommended - from a small LiPo battery.
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