No hay artículos en el carro
No hay artículos en el carroAUTOMAN
Comentado en los Estados Unidos el 22 de junio de 2024
Overall nice design, but poor wire connection technique inside (the wires soldered to tabs on the connectors have no mechanical connection, just solder). The power cable shipped with the unit was fitted for Japan or UK so the 5-15P plug supplied has the line and neutral connections reversed. Beware of it, and just know you'll have to buy an IEC320C13 to 5-15P cable that is wired for US/Canada to operate this thing safely. You might get a nasty surprise when working on appliances plugged into this device otherwise.
LF Homeowner
Comentado en los Estados Unidos el 24 de diciembre de 2024
My unit arrived with the plastic voltage adjustment knob broken into several pieces. I was going to pack it up for return, but since I really needed this for a repair, I kept it and ordered a replacement knob on Amazon.Functionally, this unit works fine. I appreciate the all metal construction and digital volt meter. I really wish it had an output current meter (ammeter) and may add one.However, as several reviewers have noted: The provided power cord INVERTS Neutral and Hot!! This is a major shock hazard! Check your cord and if it’s wrong, THROW IT AWAY!I opened my unit up and the internal wiring is CORRECT, so you’re good if you use a correct power cord.I had read other reviews mentioning this problem, but stupidly began using this unit for my repair project without checking this first. I accidentally brushed the unswitched “neutral” and got a nice buzz! So, word of warning: Verify the outlets are correct before using!Also, once I opened the unit up there were several things that I tweaked: (1) The red wire that runs to the wiper mechanism can get twisted into the winding housing. A few other reviewers mentioned this too. A couple zip ties solved that problem. (2) The connection from the red wire to the wiper assembly was frightening close to the metal shaft that connects to the adjustment knob. Bending the connection slightly and wrapping the shaft with electrical tape solved that. (3) The biggest issue is that the metal adjustment shaft is electrically “floating” — it is not grounded and therefore an internal short could energize it. The outside knob is plastic, so it should be “safe” but since the bare shaft protrudes out the case at least 1/4 inch, this could be a shock risk. I added a ground wire to the M6 nut at the end of the shaft to assure it is grounded.
Etienne
Comentado en Canadá el 18 de septiembre de 2024
As one of the other reviewer said, I've found that the output US plug had neutral and live reversed. Also, the cable has Live and neutral reversed inside of it. Threw the cable in the trash and plugged the variac with a known good cable. Now the variac outputs voltage correctly. Precision is alright at higher voltages (+/- 2v), but at lower voltages it's terrible. For example, at 3V on the variac voltmeter, I'm getting 8V on my personal multimeter. At 24V on the variac voltmeter, I'm getting 28V on my multimeter. So for lower voltages (up to around 50V), expect around 4V-5V of inaccuracy. I'm still debating if I'm keeping the variac and changing the voltmeter, or returning it and buy something else.
CAPT Seabee
Comentado en los Estados Unidos el 29 de diciembre de 2023
I use several variacs for my hobbies, but a hidden use is for Pellet Stoves. Let me explain. Stoves typically have adjustments for feed motor adjustment, but not for exhaust fan adjustment. If you cut a 3 foot extension cord in half and route the power for the fan only to a variac, you can now make adjustments to the specific pellets you are using while keeping everything else on 120V. We have a North Idaho pellet plant near us so it makes tweaking a snap.
Productos recomendados