Iwatsu VOAC 7602 bench DMM - Page 1
Forum section: electronics / testgear

author: Wytnucls
author_rank: Super Contributor
timestamp: June 18, 2014, 06:56:06 pm
content: Iwatsu has released an interesting 6 1/2 count DMM, similar to the Agilent 34461A. Little information released so far. Has anybody played with this one before?Possibly selling for about 1,100.00 USD in Japan.http://www.qk-net.co.jp/catalog/IWATSU_VOAC7602.pdfhttp://www.iti.iwatsu.co.jp/en/products/voac/voac7602_top_e.html

author: PTR_1275
author_rank: Frequent Contributor
timestamp: September 02, 2015, 09:49:09 am
content: Anyone have any further info on this meter? I can't seem to find much out from their website or even google. After Dave's latest video teardown I started to look at their meters and other items and found this post.-Chris

author: Wytnucls
author_rank: Super Contributor
timestamp: September 02, 2015, 02:04:40 pm
content: Here is a short video of the 7602:

author: Muxr
author_rank: Super Contributor
timestamp: September 03, 2015, 12:05:13 am
content: Looks pretty sexy I must say.

author: kj7e
author_rank: Frequent Contributor
timestamp: December 24, 2015, 09:28:38 pm
content: Damn you Wytnucls! Now I want one and I have no need for it! The Iwatsu Catalog (page 36) has some nice info on the unit, looks really, really good for sub 1K price range.http://assets.tequipment.net/assets/1/7/Iwatsu_Test_and_Measuring_Instruments_Catalog.pdf

author: nidlaX
author_rank: Frequent Contributor
timestamp: December 24, 2015, 11:26:21 pm
content: Wow, $959 on TEquipment. Can Dave please do a review / teardown of this unit soon?EDIT: On second thought, the 34460A is slightly cheaper if you don't need the high speed / internal memory. The Iwatsu's paper specs would suggest it's a much better value though.

author: radhaz
author_rank: Regular Contributor
timestamp: December 25, 2015, 06:04:31 am
content: Can someone give a blow-by-blow comparison of the spec sheets? I'm kinda interested in the logging functions.

author: kj7e
author_rank: Frequent Contributor
timestamp: December 26, 2015, 01:45:58 am
content: Another video showing some of the functionality.https://youtu.be/sCeIh32TJd8

author: radhaz
author_rank: Regular Contributor
timestamp: December 26, 2015, 06:47:09 am
content: I just now punched the buy button. Christmas bonus gift to myself.

author: kj7e
author_rank: Frequent Contributor
timestamp: December 26, 2015, 03:13:38 pm
content: Quote from: radhaz on December 26, 2015, 06:47:09 amNice! From Tequipment? I'm seriously thinking about it.

author: radhaz
author_rank: Regular Contributor
timestamp: December 27, 2015, 06:36:45 am
content: Yes, from Tequipment. We'll see how fast the unit is delivered.

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: December 29, 2015, 04:49:03 pm
content: looks really sweet. only 3A max tho? 80$ on tequipment.net for the lan module... hmmmmmm tempting...

author: kj7e
author_rank: Frequent Contributor
timestamp: December 29, 2015, 05:33:13 pm
content: Quote from: BloodyCactus on December 29, 2015, 04:49:03 pmI know, the 3A is kind of a bummer, also no capacitance. But I love the simulated analog sweep display and speed.

author: fanOfeeDIY
author_rank: Unknown
timestamp: December 30, 2015, 05:43:37 pm
content: Would be good if it is possible for simple review on VOAC 7602.I never had a chance to touch it.

author: radhaz
author_rank: Regular Contributor
timestamp: January 09, 2016, 05:08:46 am
content: Tequipment has notified me that the estimated SHIP date is 2/11/16, so my Christmas gift is now a birthday gift.

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: February 25, 2016, 06:50:50 pm
content: ever get your hands on it?

author: radhaz
author_rank: Regular Contributor
timestamp: February 26, 2016, 06:22:53 am
content: I've been busy and haven't had a chance to get to the multimeter. Here is a pic of it, I might get to test it in a couple of weeks.https://flic.kr/p/EmEPqx

author: tooki
author_rank: Super Contributor
timestamp: February 26, 2016, 10:35:14 am
content: Quote from: radhaz on February 26, 2016, 06:22:53 amMan, they sure did spend a lot on their graphic designer for the packaging!Almost as much as Ersa!Looking forward to your review in any case.

author: TiN
author_rank: Super Contributor
timestamp: February 26, 2016, 11:45:12 am
content: Interesting meter, perhaps a teardown coming?

author: zaoka
author_rank: Frequent Contributor
timestamp: February 27, 2016, 03:47:22 am
content: teardown & review please

author: radhaz
author_rank: Regular Contributor
timestamp: February 27, 2016, 05:10:15 am
content: Not that it means much, the packaging is all cardboard, double corrugated for the main box. Very well designed.

author: radhaz
author_rank: Regular Contributor
timestamp: April 10, 2016, 04:15:26 am
content: I've been using the meter today, working on a Sony V-Fet amplifier repair/refurb. Some observations from my time getting to know this meter:I have no experience with other modern graphical UI meters. This one feels fast, very responsive. The functions are grouped pretty well, for example display options are all in one menu, I'll see if there is is more menu diving involved in getting advanced setups.The display is very nice, sharp and clear. Buttons are also very crisp feeling, no mis-presses so far.The construction seems up to current standards. The face is surrounded by a rubber material that feels OK as I place my fingers on it to push buttons with my thumb. The case feels solid, it does not rattle or make other noises.The manual is on a CD, it is typical Japanese regarding the translation quality. You'd think after Admiral Perry arrived the Japanese would have better command of American English, it's only been 163 years since the American gangsters arrived. ( I am an American, and half Japanese on my mother's side)I have been monitoring the bias setting of the amplifier, as this is a critical issue with the old Sony V-Fet amps. The Iwatsu provides me with a really good visual readout of how this circuit is behaving.As I get to know this meter, I might add more info. I may also open the unit up and have a look around.There is also a 7502 model, with fewer features.

author: lux
author_rank: Newbie
timestamp: April 10, 2016, 12:59:26 pm
content: nice meter, is it fanless?

author: zaoka
author_rank: Frequent Contributor
timestamp: April 10, 2016, 03:05:52 pm
content: Quote from: radhaz on April 10, 2016, 04:15:26 amIs it possible to see teardown pictures?

author: radhaz
author_rank: Regular Contributor
timestamp: April 11, 2016, 05:09:15 am
content: Quote from: lux on April 10, 2016, 12:59:26 pmThe case is completely closed, there is no fan. The more I use this meter, the better I am liking it.The case has vents on either side, and there is a what sounds like a fan. It is very quiet.I had another meter stacked on top, and looked at the stack in a dimly lit room. Apologies for my mistake.

author: radhaz
author_rank: Regular Contributor
timestamp: April 11, 2016, 05:20:32 am
content: When I am done with this project, I will open it up and take some pictures, perhaps next week if all goes well.

author: alfishe
author_rank: Newbie
timestamp: May 08, 2017, 02:11:21 am
content: Please, do the teardown, finally. It's still the most modern-looking and sleek DMM on the market.

author: alfishe
author_rank: Newbie
timestamp: May 08, 2017, 06:58:28 pm
content: While trying to resurrect the topic - found series of high-quality photos from VOAC 7602:https://www.flickr.com/photos/ryuuoh/sets/72157668271935613/with/27737267623/Top quality soldering, in my opinion. Have an itch to buy it right now =)

author: scopeman
author_rank: Frequent Contributor
timestamp: January 06, 2019, 03:07:17 pm
content: Perhaps this explains why the units have a LTC version of the reference with a HP part number on themAs you may be aware Yokogawa has built a lot of test gear for HP/Agilent and perhaps Keysight.After reviewing the manuals it appears identical to the Iwatsu one I just bought on sale from tequipment.nethttps://tmi.yokogawa.com/us/solutions/products/generators-sources/digital-multimeters/dm7560-digital-multimeter-65-digit/#Documents-Downloads____downloads_9SamW3OHMOwner and Moderator of the LeCroyOwnersGroup on groups.io

author: radhaz
author_rank: Regular Contributor
timestamp: January 06, 2019, 07:30:48 pm
content: Interesting find.