Hullo All,
After some advice and recommendation please.
I'm looking for a piece of hardware that can monitor the power consumption of a device. There are plenty of these sorts of things on Amazon - but I'd like one which can record and log quite a degree of granularity over time.
e.g. I don't just want the average wattage for the day, but I want to know the wattage per hour for example.
Ideally I would want a device which can either can export data or can be queried programmatically, rather than having to read and transcribe from the screen on the device.
I am not adverse to a bit of electronic tinkering if necessary, but I would like to be able to identify the error margin that the device is operating within. e.g. +/- 0.1% accuracy.
Does anyone have any suggestions, ideas or comments ?
Thanks in advance,
AzraelÂ
I believe you want (loosely) something like these:
https://www.measurementsystems.co.uk/data-logging/energy_logging
One (or more) meter(s)+ a "data logger/concentrator".Â
Forget about the 0.1% accuracy, from this kind of devices it is more likely 0.5-1.0%, but this range of accuracy is good for - say - 99.999% of possible uses, and it is "tough stuff" used in industrial plants for a relatively cheap price.
Of course there are much cheaper devices, but they usually have SD cards they write to, and depending on the intended use it could be inconvenient.
jaclaz
Â
Also be aware that the cheap units do a really bad job of dealing with power factor. i.e. they report the wrong values, especially with low power devices.
We use this unit
https://www.cabac.com.au/product-specs/11470505/PM10AHDS
Which has a serial output port.
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