Forum Discussion
- Nearly as cheap as just buying the current transformer itself.
- wonder IF i have room to mount one in the face of the generator
put the CT around the hot to the RV plug
power the meter directly from the champ
i would get reliable readings of genny power output load - Don
those are current transformers, NOT 'hall effect' sensor
those work for AC, been around for a 100yrs or more
Hall effect is an entirely different type of electronics, because DC does not produce current in a transformer
anyway small CT ampmeter is great for RV 120vac power use MrWizard wrote:
Remember, ONE pass through the coil, unless you're playing a great joke.. :)
Don
those are current transformers, NOT 'hall effect' sensor
those work for AC, been around for a 100yrs or more
Hall effect is an entirely different type of electronics, because DC does not produce current in a transformer
anyway small CT ampmeter is great for RV 120vac power use- Yeeco may be dumping all their inventory of meters marked in Mandarin Chinese. Absolutely no schematic. Just two lines depicting a donut running to 2 potted terminals. Connect it that way and ka-pow unhappy huntimg ground smoke signal. I would first message the vendor and ask if they have English language connection instructions
- Nice price. I installed one of these (well, it may have been a different "brand" but appears identical) and it works very nicely and appears to be accurate. It does appear to display actual power rather than apparent power...that is, the power (watts) is not always strictly equal to the product of the voltage and current.
I would suggest (and I myself did) putting a fuse in the voltage sense line just in case. - What size fuse?
1/2 amp ? - 1/2A would be fine. I think I used a 1A as that was the smallest 120V AGC fuse I could get readily at the time. The goal, of course, is simply to protect from a fire or similar unpleasantness should the meter or voltage sense/power supply wires somehow develop a short. The supply wires can't be too big and still fit in the dinky little binding posts on these meters.
The meter itself probably uses something in the vicinity of a few milliamps, at most, I would guess. It would be hard to get a 120V fuse that is too small without it being a somewhat exotic part.
