My new Fluke731B - Page 1
Forum section: electronics / testgear

author: bingo600
author_rank: Super Contributor
timestamp: October 11, 2015, 01:48:29 pm
content: Here are some pics/Bingo

author: bingo600
author_rank: Super Contributor
timestamp: October 11, 2015, 02:18:04 pm
content: Some 731B picts

author: bingo600
author_rank: Super Contributor
timestamp: October 11, 2015, 02:20:18 pm
content: More picts

author: HighVoltage
author_rank: Super Contributor
timestamp: July 14, 2016, 09:52:31 pm
content: I was looking to buy one of these and was wondering if the input voltage can be switched from 110 to 230 VYour pictures answered my questionThanks!

author: bingo600
author_rank: Super Contributor
timestamp: July 15, 2016, 02:16:40 pm
content: You're welcome/BingoHardest part was finding some NiCd's , but i found 2 of these racingpacks i put in series.They even fit in the Batt holder.

author: HighVoltage
author_rank: Super Contributor
timestamp: July 15, 2016, 06:55:05 pm
content: Quote from: bingo600 on July 15, 2016, 02:16:40 pmOk, I bought one and it will be here in a while, no hurry.Do you have a link to the NiCd's you bought?

author: bingo600
author_rank: Super Contributor
timestamp: July 16, 2016, 05:02:01 am
content: I bogtht the last 2But this one seems like he'll do custom packs.http://www.ebay.de/itm/Akku-AA-Ni-Cd-12V800-mAh-5L-3-fach-Tamiya-Stecker-/251878553592My cells are Sanyo n-350aac - they fit in a 14.4v config.This one could be interesting for you (in DE)http://www.batt-mann.de/akku__packs.htmThe heavy duty plastic bag is for "leakage" if ever ..../Bingo

author: TiN
author_rank: Super Contributor
timestamp: July 16, 2016, 07:26:01 am
content: What is magic purpose of SMA connectors in bag?

author: Vgkid
author_rank: Super Contributor
timestamp: July 16, 2016, 07:38:48 am
content: It looks like they are sitting on top of a white wire.

author: bingo600
author_rank: Super Contributor
timestamp: July 17, 2016, 05:46:13 am
content: They were just laying on the table , when i placed the 731B thereNo magic , just untidy/Bingo

author: HighVoltage
author_rank: Super Contributor
timestamp: July 18, 2016, 02:34:39 pm
content: The seller claims that this Fluke 731B is not allowed to be sent outside the USA. (Government order)So, they canceled the deal and I have to look for one in Germany.The world is turning funnier every day.

author: retiredcaps
author_rank: Super Contributor
timestamp: July 18, 2016, 05:24:40 pm
content: Quote from: HighVoltage on July 18, 2016, 02:34:39 pm3 years ago, when the CDN $ was on par with the USD $ and when USPS shipping was somewhat reasonable, I tried to buy an used Fluke 27/FM from a Florida ebay seller. I questioned the seller about shipping and was informed that he was not able to ship to Canada due to USA regulations.This is for a 25 year old multimeter. I can't see how this meter has any secrets that would harm the USA. In addition, NATO used these meters, including Canada.

author: HighVoltage
author_rank: Super Contributor
timestamp: July 18, 2016, 06:49:18 pm
content: Yes, the 731B must also be about 25 years old.Even weirder, I told the seller that I will have it shipped to California.Then he replied he can not do this, because I have the - intend - to have it forwarded to Germany and that is not allowed either.

author: bingo600
author_rank: Super Contributor
timestamp: July 18, 2016, 07:28:29 pm
content: Mine was bought from the US , by an honest seller.That was satisfied with the bidprice he got, i think i gave $165No funny excuses.Complain to ebay/Bingo

author: vltr
author_rank: Contributor
timestamp: July 20, 2016, 08:09:54 pm
content: If the seller got it originally from a government liquidation auction he was probably required to sign paperwork with very threatening language stating he would not export it or sell to anyone he believed would export. The US gov when getting rid of surplus test equipment can't seem to be bothered checking what has export restrictions and what doesn't so they just apply a blanket policy to buyers.

author: zlymex
author_rank: Frequent Contributor
timestamp: July 21, 2016, 11:49:15 am
content: I bought three 731B all shipped to here in China with no problem.One good thing about 731B is that is consumes very little power from the mains. The current of one of them from the 220VAC mains is only 2.3mA, which is 0.51VA(not Watt, VA is the apparent power, the real power is even smaller).One bad thing about the 731B is the very poor implementation of the transformer: no insulation between the primary winding and the shield winding.The shield winding was shorted to the primary winding one day in one of mine, making the power cut for the whole house because of the leakage protection. I teardown the transformer and found out that there is NO insulation between the primary and the shield made of bare copper sheet.Edit: add photosThe green/yellow wire is the shield, which connected to the earth(and connected to the case/chassis/metal power switch as well).Red, orange, brown and black wires are the two primary windings. The copper shield is directly wrapped around the primary winding.