Accuracy with 2 Senses


#1

I have 2 separate Sense CT pairs on the SAME panel feeds.

Sense1 has been running for more than a year and seems to correlate, month-to-month, quite well with my provider metering.
Sense2 I just installed to “test” and I see a significant difference (so far) in the daily metered usage (of Sense1).

Drilling down to each monitor’s Voltage/Wattage I can see that relative to the “actual” voltages (using a Fluke 117) I have, approx:

ACTUAL: X
SENSE1: X + 0.4V
SENSE2: X - 0.4V

Meanwhile these are the last 4 days usage:
SENSE1 SENSE2
37.3 46.1
30.3 37.7
31.2 35.2
34.8 40.6

Ideas?


#2

Hmm…this is something we should look into. @ixu - would you mind if we looked into this more closely? If you could just send @RayshawnAtSense a private message here in the forum with the two email addresses you use for these accounts, he may be able to check in on things.

Thanks for calling this out!


closed #3

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