Rogue MPT-3048 now available
For those who've been waiting, just a heads-up that the 3048 is now available for ordering on the Rogue website. http://www.roguepowertech.com/products/mpt3048.htm If you've visited the page rec...
Forum Discussion
Specifications should be accurate. Car manufacturers can't get away with advertising fuel efficiency of 50 mpg and not mentioning speed is only 20 mph. That's crap! The charge controller manufacturers are counting on the average person not able to interpret the spec correctly.
You just about need a degree in electronics to REALLY know what you're getting. Take for example the Rogue controller ampmeter accuracy.
Ammeter Accuracy: 1.0% at full scale (100a)
Ammeter Resolution: 0.1 amp
If the display reads 12.5A, what error do we have?
The meter accuracy is 1% of 100A, or +/- 1A. Add the resolution error and total meter error is +/- 1.1A.
When the display reads 12.5A, the error is 1.1A/12.5A = 8.8%.
When the display reads 5.0A, the error is 1.1A/5A = 22%.
Sal
You just about need a degree in electronics to REALLY know what you're getting. Take for example the Rogue controller ampmeter accuracy.
Ammeter Accuracy: 1.0% at full scale (100a)
Ammeter Resolution: 0.1 amp
If the display reads 12.5A, what error do we have?
The meter accuracy is 1% of 100A, or +/- 1A. Add the resolution error and total meter error is +/- 1.1A.
When the display reads 12.5A, the error is 1.1A/12.5A = 8.8%.
When the display reads 5.0A, the error is 1.1A/5A = 22%.
Sal
