| Author | Message | ||
| don goldsmith (Bottomacher)
Registered Member Username: Bottomacher Post Number: 249 Registered: 12-2000 Posted From: 72.15.86.59 Rating: N/A |
Do any of our resident electronic gurus know if it is feasible and/or practical to convert a Heart Interface Freedom 25 from 230v/50hz to 120v/60hz output? Thanks Don | ||
| Sean Welsh (Sean)
Registered Member Username: Sean Post Number: 839 Registered: 1-2003 Posted From: 67.142.130.19  Rating: |
No, it is not practical. Any money you save by buying a European-spec unit will be far outweighed by what it would cost to change it over. -Sean http://OurOdyssey.BlogSpot.com | ||
| Clint Hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 159 Registered: 1-2009 Posted From: 24.129.235.190  Rating: N/A |
& if it does not have domestic safety standards certifications you are solely responsible for any damage your modified unit may inflict on others , from emf interference right up to bus fires , providing a easy out on the part of your insurance provider to not cover your liability. But hey what is the learning curve (that you will travel while learning how to do the modifications) worth, priceless ? | ||
| George M. Todd (George_mc6)
Registered Member Username: George_mc6 Post Number: 813 Registered: 8-2006 Posted From: 64.55.111.6 Rating: N/A |
Don, Sean's first word says it all! The oscillator would have to be sped up from 50 to 60 cycles, then the transformer secondary changed from 220 to 120 volts, and the output current control almost doubled. (There isn't much else left.) They probably wouldn't give you your money back if it didn't work either. G | ||
| don goldsmith (Bottomacher)
Registered Member Username: Bottomacher Post Number: 250 Registered: 12-2000 Posted From: 72.15.86.59 Rating: N/A |
Thanks, everyone. I had to ask. Don | ||
| Jim Gibson (River_rat)
Registered Member Username: River_rat Post Number: 26 Registered: 1-2009 Posted From: 75.95.96.192 Rating: N/A |
Agreed, don't mess with it, but you might be able to send it back to the factory and have them do the conversion - they are a pretty helpfull bunch. It's a pricy unit and if they will do a legit conversion for a few hundred, might be worth it. Jim | ||
| Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom Post Number: 35 Registered: 2-2009 Posted From: 98.201.161.214 Rating: N/A |
Use a Step-down transformer. A better solution is probably to get a different inverter, like most everyone says. Although, if you contact the mfr; they may have already solved this problem, and have a ready made solution for you. Not likely, but possible. That being said, I like 220V appliances. And would love to have a nice inverter-drive 220V Split A/C unit. | ||
| Sean Welsh (Sean)
Registered Member Username: Sean Post Number: 873 Registered: 1-2003 Posted From: 67.142.130.17 Rating: N/A |
That won't change the frequency from 50hz to 60hz. -Sean http://OurOdyssey.BlogSpot.com | ||
| Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom Post Number: 75 Registered: 2-2009 Posted From: 203.176.193.103 Rating: N/A |
That's correct! Your cheap wall clocks will run slow. Induction motors will run at 5/6 their normal speed. Some motors, transformers, and inductive coils will experience greater heating, due to greater current, due to lower inductive reactance; thereby shortening the life of same (possible, YMMV). Your fire-insurace carrier may also get an easy-out out of the deal. So, to clarify, possible? Yes. Practical? No. Would I? Only for amusement/emergency. | ||
| Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom Post Number: 88 Registered: 2-2009 Posted From: 67.159.44.61 Rating: N/A |
Here's another idea. Buy yourself some european/asian appliances. They're usually smaller, lighter, and more efficient. They're not usually cheaper but, you can't win them all. -Cullen |
