(sold) Advantest R8340A ultra high resistance meter - Page 1
Forum section: electronics / general

author: PartialDischarge
author_rank: Super Contributor
timestamp: November 23, 2020, 07:45:26 pm
content: For sale is a semi-faulty R8340A. Thread about this model of equipment is herehttps://www.eevblog.com/forum/metrology/advantest-r8340a-picoammeter-high-resistance-meter-review/So this particular unit has a 0-1000V generator which works well, it will also display current through the device or resistance.However not all ranges measure well and I don't know exactly why that is, I suspect a calibration problem with the unit. For example a 1GOhm resistors as the one used in the picture with 1000V applied, measures different current depending on the scale selected:1.0uA (1 digit, correct value)0.95uA (2 digits)0.664uA (3 digits)

author: Hydron
author_rank: Super Contributor
timestamp: November 24, 2020, 09:56:11 am
content: Did you try and run through the calibration routine on the unit? And any feel as to what shipping would be to the UK?

author: Zucca
author_rank: Unknown
timestamp: November 24, 2020, 11:31:56 am
content: I just sold all my Triax cables....

author: Hydron
author_rank: Super Contributor
timestamp: November 24, 2020, 12:44:29 pm
content: Why hasn't someone else stepped in to solve this TEA syndrome dilemma?MasterTech - am obviously tempted, will have a look at the dimensions etc first though, as I'm a bit space constrained (work and hobby electronics are currently co-habiting due to covid). No hard feelings if someone else puts their hand up first.

author: DC1MC
author_rank: Super Contributor
timestamp: November 24, 2020, 12:58:40 pm
content: OK, if shipping to Germany is not too much, I will offer it a home, please PM me with payment details assuming that @Hydron doesn't decide that it fits his bench.Cheers,DC1MC

author: Hydron
author_rank: Super Contributor
timestamp: November 24, 2020, 02:38:08 pm
content: Quote from: MasterTech on November 24, 2020, 01:16:48 pmGo for it if you're going to get good use from it - MasterTech is right especially about the power supply portion - it was probably the biggest drawcard for me and I would have snapped it up if I didn't already have a 400V supply that's sufficient for most stuff I do

author: DC1MC
author_rank: Super Contributor
timestamp: December 01, 2020, 06:12:16 pm
content: The Eagle has landed and after a day of getting to the room temperature I have started, so far so good, no smoke is coming, it responds to commands, just some questions:- Behind, where the BCD interface was is a huge hole, did you have the cover for it and forgot to put it in the parcel, or this unit didn't have one. Also if you have such a cover, could you please post some pictures of it, to try to get some 3D printed ?- One corner in front is a little chipped, was it like this or the UPS guys mistreated it ?Beside this, soon my (long) vacation will start and we'll get to know better each other.So I can gladly recommend MasterTech as a good seller of TE, now if somebody in DE has a triax cable/socket that can part of, on a reasonable price, please PM me, the >:Dbay stuff is really scary.Cheers,DC1MC

author: PartialDischarge
author_rank: Super Contributor
timestamp: December 02, 2020, 04:28:58 pm
content: -About the BCD, some of the R8340 that I initially bought had that board (which is useless) and others didn't, but they had no cover panel...-The way it was packed it is difficult for it to be chipped in transport, can u share a pic?