| Products > Test Equipment |
| 300W DC Load: Korad KEL2010 or Tonghui TH8402A ? |
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| nctnico:
--- Quote from: danils on July 24, 2023, 12:11:46 pm ---Hello there, I have a Tonghui DC load 8411. When I received it the firmware was very bugged, constant power mode was not working at all. The company answered in half a day and they sent me via email a new, working, firmware. It still has some problems like the meter showing a DC offset also if it is disconnected (could be a problem of my unit). --- End quote --- That is usefull information. How long do you have the 8411? And from who/where did you buy it? From Aliexpress or a seller in Europe? @Ludee: also thanks for your input. I appreciate it a lot. I have send Tonghui a few emails asking about European distributors but no response so far. |
| trp806mo:
I uploaded the manual of the th8200 which is not the same type as what you are looking just for example. I had those contacts in mid 2021 : commercial thhongkong@hotmail.com (Linda Song) which warned me that the product was not EC (and so perhaps it's your issue for not having a distributor) and a technical guy who answered to all my questions : Clint Han Changzhou Tonghui Electronic Co.,Ltd No.1, Xinzhu Road, New District, ChangZhou, JiangSu, China Tel: +86 519 85195566 Fax: +86 519 85109972 Mobile/WhatsApp: +86 18801509216 Email: dx.han@tonghui.com.cn It's just for information as I have any clue of the "quality" of a Tonghui's Dc Load |
| nctnico:
I've send a message to Batterfly (Italy) about the TH8402A because Batterfly sells a lot of other Tonghui equipment. Their price is reasonable but I got no response yet on lead time and whether I can return it if it doesn't work as advertised. About CE: The smaller Tonghui DC loads seem to have a CE mark while the bigger ones don't. |
| nctnico:
No reply from Batterfly about lead time & return policy (yet) so I decided that I'm going to order the Korad KEL2010 and see how it works. Meanwhile I have also found out that some of the Tonghui DC loads I have looked at are sold under BK Precision models BK8550 (175W) and BK8551 (300W). Unfortunately no European supplier has any stock at this moment. |
| electr_peter:
--- Quote from: nctnico on July 19, 2023, 07:38:12 pm --- --- Quote from: PartialDischarge on July 19, 2023, 06:54:31 pm ---I'd get a Rigol DL3031 and add banana to spade adapters to the terminals if they are that important. --- End quote --- The price for the DL3031 is about twice of that of the Korad / Tonghui for similar or even better specs. --- End quote --- Check price of DL3021 instead ;) FYI, Rigol DL3000 electronic load series can be modified easily (all models have same HW) dl3021-to-dl3031-conversion-discussion For 300W, I would go with Itech/BK Precision (in my experience Itech e-loads work well). Newer units have very nice binding posts with integrated 4mm banana sockets. Something like BK8500B |
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