hybridfree/eevblog-posts huggingface dataset:
Reocmmended programmable dielectric testers? - Page 1
Forum section: electronics / testgear

author: gjsmo
author_rank: Contributor
timestamp: January 21, 2020, 04:43:45 pm
content: My company is looking to purchase new programmable dielectric testers. We have two existing units which I will not name to protect the innocent, but they're over 20 years old, discontinued, and no service or parts are available from the manufacturer. These are rackmounted units networked in with GPIB to test software written in LabVIEW which we'd like to keep using, albeit with the appropriate modifications. These are typically used for testing both AC dielectric strength and DC insulation resistance, up to 1kV for both.Is there any experience with these types of testers or any recommendations? I don't see many available from the usual suspects as far as test equipment goes (Tektronix, Keysight, Rohde & Schwarz etc) but a few manufacturers I've found like Kikusui, Chroma, Ikonix, and Vitrek. The biggest consideration will be reliability as these are in use on two separate test stands daily, so cost isn't a huge concern.

author: charliedelta
author_rank: Regular Contributor
timestamp: May 16, 2020, 08:46:26 am
content: Look for the Danbridge JP12 or 15. These are 12 and 15 KV testers respectively and come in handy if you are doing a lot of breakdownHipot testing.I like having a united where you can hearing the breakdown through the speaker. You learn a lot from "listening" as the DUT is approaching breakdown.

author: threephase
author_rank: Regular Contributor
timestamp: May 16, 2020, 04:17:35 pm
content: Kikusui and Vitrek are the ones I would look at first since it looks like you are in USA. I am not sure of the availability in your country, Seaward offer their Clare HAL and Sentinel series, which have good reliability. Not sure on the ability to connect to LabView though.GW Instek also offer the GPT9000 series, which I have always thought about getting hold of to see what they were like. ETL offer the ATS and RS series. I have no idea about the reliability of any of these particular units.There are also some manufacturers such as Metrel and Chauvin Arnoux (AMEC) that offer portable machinery tests that can do AC and DC testing up to 1kV.I don't believe that any of the mainstream instrument manufacturers such as Keysight, Fluke etc offer this kind of tester. You are heading more towards the electrical testing services that are a bit more niche.Kind regards

author: gjsmo
author_rank: Contributor
timestamp: December 18, 2020, 05:00:39 pm
content: For the benefit of those who come across this in the future, we chose the Kikusui TOS9300 series. Around $5000 for a unit with ACW and DC, up to 5kV and 7.2kV respectively. Very nice interface (large color LCD with a full numpad), Ethernet and USB as standard, and great support from the manufacturer when it comes to programming. I have encountered no problems in the month or so we've been using them that couldn't be attributed to our programming.
FLUKE 123 compared to tekscope THS700 series - Page 1
Forum section: electronics / testgear

author: R_G_B_
author_rank: Frequent Contributor
timestamp: May 24, 2015, 09:15:20 am
content: A question is the fluke 123 a more recognised scopemeter than the tek ths700 series the reason I ask this is that I see fluke 123 scope meters with battery missing and display faults going for good money even ones that are said not to be working getting sold at a good price. I had no trouble selling one with a display fault for a good price. I am struggling to sell a tektronix THS720. This is a much better oscilloscope than the standard fluke with its higher bandwidth and channel isolation. The fluke has a good trend-plot feature but a much lower bandwidth.Any answers appreciated.ThanksR_G_B

author: R_G_B_
author_rank: Frequent Contributor
timestamp: May 24, 2015, 04:31:44 pm
content: just looking on ebay here is an example:fluke 123 currently at the time of this post 42 bids and at 31o british poundshttp://www.ebay.co.uk/itm/131516591869?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AITR_G_B

author: Gae
author_rank: Contributor
timestamp: December 13, 2020, 08:48:43 pm
content: Hi,A post from 5 years ago ...Any way my question is about the same, I am about to buy a 2th hand scope and I am looking for a good quality one but I don't have to much money to spend.Thats why I am looking for a second hand one. Handle scope would be good, I have one (Chinese: Hantek 8060) but I have had a bad experience with it. I'm looking also for a analog one, like a Tek 453a for 140€ with probes.Tek THS720 is still a good option? I can get one for 260€I see the Fluke 97 are much more expensive, do they really have more value in therms of quality ? I see some Fluke 20MHz at more then 350€ and a few years old.Any of your comments are welcome.
(BM235 Multimeter) You'll never guess what I've lost - Page 1
Forum section: electronics / testgear

author: ELB0DEEP
author_rank: Newbie
timestamp: November 22, 2016, 11:24:22 pm
content: Hi Everyone,I've been renovating my house and as you might imagine the place was in a mess. During the renovation I lost the little banana plug screw on piece that is on the end of the probe.Does anyone know where you can buy replacements for them.Thank you eversomuch!

author: Muttley Snickers
author_rank: Unknown
timestamp: November 22, 2016, 11:36:32 pm
content: Easily fixed, you can get them from Franky at 99 cent hobbies, he is a forum member and very highly regarded. As far as I'm aware Dave did look in to carrying them at one point but the effort involved to stock and post such a small item was simply not worth it and understandably so.99 Cent Hobbies/ Brymen Banana Tips.http://www.ebay.com.au/itm/Gold-Plated-Lantern-Spring-Probe-Tip-Attachment-for-Brymen-Multimeter-Test-Leads-/171243956885

author: ELB0DEEP
author_rank: Newbie
timestamp: November 22, 2016, 11:45:58 pm
content: Awesome! Bought spares too. Thank you again for the reply!

author: Tommyt
author_rank: Newbie
timestamp: December 14, 2020, 04:45:34 pm
content: Thanks! Will buy a set now...

author: Calvin
author_rank: Regular Contributor
timestamp: December 15, 2020, 03:19:47 am
content: You can get them from german distributor Welectron also

author: Brumby
author_rank: Unknown
timestamp: December 15, 2020, 03:36:30 am
content: Yep. Did the same sort of thing.... Put them somewhere safe so they wouldn't get lost.So I bought 2 sets from Franky and made sure they were put somewhere safe so I wouldn't losethem!Oh, hell................
Rigol DS1202z-e external trigger  - Page 1
Forum section: electronics / testgear

author: fts
author_rank: Contributor
timestamp: December 01, 2020, 11:33:40 am
content: Hi,I try to utilize the external trigger input on the Rigol DS1202z-e but it doesn't seem to work. All works fine if i connect the same signal to one of the analog inputs and use it as trigger source.Setup:- 1kHz 3.3V Signal via x1 probe on ext trigger input.- trigger source "EXT"- slope "rising edge"- trigger level 1.5V- trigger mode normalThe trigger indicator keeps blinking "WAIT". Any suggestions on what I'm doing wrong?

author: Fungus
author_rank: Super Contributor
timestamp: December 01, 2020, 12:15:40 pm
content: Quote from: fts on December 01, 2020, 11:33:40 amHave you tried x10 probe?

author: fts
author_rank: Contributor
timestamp: December 01, 2020, 02:12:52 pm
content: yes, but it didn't work either.

author: Fungus
author_rank: Super Contributor
timestamp: December 01, 2020, 02:36:41 pm
content: What about trigger coupling, AC or DC?

author: fts
author_rank: Contributor
timestamp: December 01, 2020, 02:48:20 pm
content: trigger coupling is fixed to "DC" when using the external trigger. I also tried different slope settings (rising, falling, any), no luck.

author: fts
author_rank: Contributor
timestamp: December 13, 2020, 04:58:26 pm
content: My device was defective. Got it exchanged, it's working fine now.
Keithley 177 in Japan (100v, 50Hz) - Page 1
Forum section: electronics / testgear

author: michael@metgen.tech
author_rank: Contributor
timestamp: December 11, 2020, 10:35:42 am
content: I just bought a Keithley 177 from the US for use in Japan. I was looking at a picture of the back and realised that it says 105-125V. Can someone give me an idea of the consequences of running it on 100V (50Hz in East Japan)?And yes, I can rant about the irritating voltage levels and different frequencies depending on whether you're in East or West Japan... from the UK so I expect a kettle to boil before the warranty expires!Anyway, any pointers greatly appreciated.Thanks,Mike

author: HighVoltage
author_rank: Super Contributor
timestamp: December 11, 2020, 10:49:15 am
content: 1. What is a Keithley 117?(Picture please)2. You should be fine in Japan with 100V, I have sent many old Keithley instruments to Japan and all worked perfectly alright with the USA settings of 110V

author: michael@metgen.tech
author_rank: Contributor
timestamp: December 11, 2020, 11:05:05 am
content: Sorry, typo (corrected now). 177, of course.https://www.dropbox.com/s/v2fzbefk6a0i1cn/K177.PNG?dl=0(struggling to embed image)Thanks,Mike

author: HighVoltage
author_rank: Super Contributor
timestamp: December 11, 2020, 03:31:00 pm
content: The old Keithley 177 will work perfectly in Japan, no worries.

author: michael@metgen.tech
author_rank: Contributor
timestamp: December 12, 2020, 01:47:00 am
content: Thanks HighVoltage - Good to have a definitive answer!

author: TiN
author_rank: Super Contributor
timestamp: December 13, 2020, 12:43:33 am
content: Quote
Siglent SDS2200X-E square signal measurement distortion @ 1X probe - Page 1
Forum section: electronics / testgear

author: jetigm
author_rank: Newbie
timestamp: December 10, 2020, 11:05:08 am
content: Hi folks,I recently bought the SDS2200X-E and get this strange measurement effect and I try to figure out is everything ok with the scope or it is defective and I should ask for a replacement. Please give some opinion on this.So the problem appears at least at this measurement conditions:1. Probe and scope setted to 1X.3. Scope is switched to the <=100mV/div @ SDS2200X-E and in case of Rigol - <=200mV/div.2. Input signal is 1KHz and 3V amplitude.The scope displays what is shown at the picture but not the flat bottom line of the signal as I suppose it should be.This effect doesn't happened at 10X probe or 1V input signal amplitude.When I switch to the 100mV/div @ SDS2200X-E and 200mV/div @ Rigol the relay inside is clicking what makes me think that different circuits is become active and this is more likely the hardware bug.I have upgraded the SDS2200X-E firmware but it doesn't helped.Both scopes has very similar behavior and I am confused - where the problem is and are these scopes is defective?Or maybe all scopes in this price range behave the same and only more expensive ones don't have this effect?Or everything is ok with the scopes and this effect caused by some other reasons?

author: 2N3055
author_rank: Super Contributor
timestamp: December 10, 2020, 12:41:56 pm
content: Quote from: jetigm on December 10, 2020, 11:05:08 amNo that is not defect, you're simply overdriving scopes input amplifiers. Once top or bottom of signal goes off the screen, you can expect distortion. Same as you would when overdriving audio amplifier..Older analog scopes had different input sections (attenuators and amplifier itself) and worked with much higher internal voltages so had larger dynamic range before saturating. So they were more resilient to this behaviour, although some models more, some less.And more expensive scopes will have same architecture and same problem..

author: jetigm
author_rank: Newbie
timestamp: December 10, 2020, 01:15:19 pm
content: Thanks a lot!If so, than I will keep my brand new SDS2200X-E

author: 2N3055
author_rank: Super Contributor
timestamp: December 10, 2020, 01:54:37 pm
content: Quote from: jetigm on December 10, 2020, 01:15:19 pmYou're welcome!And if you search here on EEVBLOG, you will realize you have 350MHz scope ..

author: radiolistener
author_rank: Super Contributor
timestamp: December 11, 2020, 10:36:14 am
content: Quote from: jetigm on December 10, 2020, 01:15:19 pmcan you show 100 Hz square wave on your oscilloscope with DC and AC coupling?

author: jetigm
author_rank: Newbie
timestamp: December 11, 2020, 10:40:35 am
content: QuoteCurrently no, I don't have a generator yet, only can play around with internal 1K gen.

author: radiolistener
author_rank: Super Contributor
timestamp: December 12, 2020, 06:00:37 pm
content: Here is Siglent SDS1102X. Gen output is 50 Ohm, oscilloscope input 50 Ohm.100 Hz square wave with a flat top and bottom.
Odd issues with Brymen BM257s - fixed? - Page 1
Forum section: electronics / testgear

author: cburgess129
author_rank: Newbie
timestamp: December 11, 2020, 04:36:59 pm
content: I bought a Brymen BM257s 2 years ago, largely based on comments on this forum and the fact that Dave based his meter on a similar Brymen model.Right after the 1yr warranty expired, it started throwing a CAL error when switched to dc volts and was stuck in diode mode when switched to the top position. Nothing I did could resolve the issue so I contacted the vendor TME Electronics (it was cheaper to purchase overseas even though I am in the US - go figure) and they accepted it for RMA, even though it was out of warranty - good customer service!I received it back in working order and it worked for another 6 months and then got stuck in the diode range again. Whenever I turned it to the range that allows you to select capacitance/ohms/diode, it would not allow me to select anything other than diode. Interestingly, the CAL error did not return. I put it aside for about 6 months because I didn't think TME would fix it again, being out of warranty for so long.This morning I was looking for solutions online and rediscovered the instructions for putting it into calibration mode. Having nothing better to try and thinking this might work like a factory-reset I tried it. Essentially, you hold the SELECT and HOLD buttons while powering it on. Surprisingly it worked! I exited CAL mode, power-cycled it and was able to access all of the functions. I tested all of the functions and ranges against a Greenlee DM-210A (which is a rebadged Brymen) and it works perfectly.Has anybody else run into problems like this with their Brymen meters? I don't expect the issue is permanently fixed but it is nice to know there is a work-around if it crops up again.
Rigol vs Siglent FFT - Page 1
Forum section: electronics / testgear

author: ToddW
author_rank: Contributor
timestamp: December 11, 2020, 01:40:20 am
content: My dad asked me to pick out a low cost scope for him and I got a Rigol. I was looking at getting a scope about a year ago and decided not to, but I was looking at a Siglent. But now I am thinking of getting the more expensive Siglent and just splitting the cost with him and we can both use it from time to time. When I was looking, I was interested in the FFT, and it seemed like like everywhere I looked, the Rigol implementation was one of the poorest out there while the Siglent was not too bad. Now, I can't find any info on if Rigol has improved thier FFT or it is still as poor as always. Anybody have an idea?Already ordered the Rigol but might return it when it gets here if the Siglent FFT is still much superior. The scopes are siglent sds1202x-e vs rigol ds1102z-e, 379 vs 279.

author: tautech
author_rank: Super Contributor
timestamp: December 11, 2020, 02:00:21 am
content: Rather than just datasheet specs the user manuals can provide more clarity of FFT capability.P129https://siglentna.com/wp-content/uploads/dlm_uploads/2020/11/SDS1000X-ESDS1000X-U_UserManual_UM0101E-E05A.pdfUseful capability like controllable Markers that you can adjust settings for each, Search, set by amplitude, harmonics or frequency and show a marker table.FFT modes such as Normal, Max-Hold or Average add further usefulness if you're into advanced FFT.If reasonable FFT is all you need yet would still like some nice features maybe the new 4ch $399 SDS1104X-U might be more attractive.

author: 2N3055
author_rank: Super Contributor
timestamp: December 11, 2020, 02:40:22 pm
content: Siglent sds1202x-e is better scope of those two..If you can afford money difference go for that one.
Rohde&Schwarz Oscilloscope behaviour - Page 1
Forum section: electronics / testgear

author: Baltazar
author_rank: Contributor
timestamp: December 10, 2020, 06:45:31 pm
content: I got an RTA4004 this week.Amongst others, reviews on this forum (mostly RTM3000) greatly helped me make my choice and I don't regret it.First two questions, perhaps Rich@RohdeScopesUSA can help:- How comes that horizontal scale goes in 1-2-5 steps everywhere except at 40ns/div and 80ns/div where I would expect 50 & 100ns/div?- When I power up the scope with a signal connected while observing this same signal on another scope, I see that signal amplitude is pulled lower for some time during startup. Maybe the 50Ohm termination is activated temporarily. This can be dangerous, possibly causing damage to the scope. Couldn't this be avoided? The other scope (HMO2024) doesn't do that.

author: Hydron
author_rank: Super Contributor
timestamp: December 10, 2020, 09:53:59 pm
content: I think the 40 and 80 ns/div thing is to get an integer pixel:sample ratio at these steps for a crisper display. Dave actually made a topic about it here:https://www.eevblog.com/forum/testgear/rohde-schwarz-rtb2004-timebase-quirk/(and got an answer from Rich)As for the power up thing, maybe check with a multimeter to see if it does drop to 50R during startup? Do you hear a relay click?

author: Baltazar
author_rank: Contributor
timestamp: December 11, 2020, 01:11:33 pm
content: Thanks for the link. While it sounds like a reasonable explanation, I see no real difference in image quality between 40/50 and 80/100 ns/div, neither om my scope nor in the picture in the related thread.I checked with a DMM, the input impedance is indeed 50Ohms for some seconds during startup. This is not appreciated. I must remember to be careful and hope this will be avoided in next FW release.

author: 2N3055
author_rank: Super Contributor
timestamp: December 11, 2020, 02:38:31 pm
content: This made me curious, so I checked my Keysight MSOX3000T to see how it behaves.When set to 1MOhm, when off, it actually disconnects input, and keeps it off (high impedance) until scope initializes.Then it switches in input atten and drops to 1 MOhm.But, if you enable 50 OHm, and switch off the scope, it also disconnects internal electronics, but it KEEPS 50 Ohm terminator switched in. Scope stays 50 Ohm terminated even when OFF. All the time. I guess they used bistable relay for 50 Ohm termination.So if you keep scope at 1MOhm, it will completely disconnect inputs when off, but if you were working with 50 Ohm before switch off, input will stay at 50 Ohm even when scope is off.
HP 3582A Spectrum Analyzer doesn't scan - Page 1
Forum section: electronics / testgear

author: bristpi176
author_rank: Contributor
timestamp: December 10, 2020, 08:06:15 pm
content: Hi folks,I am back with another piece of test gear in need of help. I have an HP 3582A spectrum analyzer that doesn't scan. It shows "overload" on the screen most of the time but no input is coupled. When I turn it to its Cal position, I can hit the reset a number of times before it will show the expected display. It will then scan for about a second and the display will freeze up.I think a big hint (what do I know) is that it will only accept front panel inputs when you reset the machine. In other words, I can change any front panel setting and it won't be implemented until I hit reset.I'm not sure what else you would want to know to help put me on the right track so please let me know. Thanks for your help.Thanks

author: Cubdriver
author_rank: Unknown
timestamp: December 10, 2020, 08:22:18 pm
content: i have one of those in my repair queue, but haven't looked at it yet and don't currently have access to it so will be of limited help here, but as with most older instruments I'd start by looking at power supply rails and filter caps, and reseating boards.The service manual is available as a pretty decent quality scan for free download from Keysight.https://literature.cdn.keysight.com/litweb/pdf/03582-90004.pdf?id=2442835might get you there, otherwise go to keysight.com, click on the 'support' tab, select 'keysight product support' and enter 3582a in the box to get the literature on the instrument. The service manual PDF is 28.13MB.Good luck with it!-Pat

author: bristpi176
author_rank: Contributor
timestamp: December 10, 2020, 08:32:34 pm
content: Here's what I've done so far.1. I pulled and inspected all the boards and cleaned them and the inside of the machine up. This thing must have been run at a sand pit. Lots of crap inside.2. Cleaned the front panel and exercised all the switches. See sand pit above.3. All the lights on the power supply boards are green, so without breaking that one down it looks like its getting power properly.4. I followed the initial troubleshooting in the service manual, removing boards one at at time to see if the problem would clear. It didn't show me anything.I don't have the riser boards to run those tests that require access to the boards. I'm more of a board swapper if truth be told.Thanks

author: Cubdriver
author_rank: Unknown
timestamp: December 10, 2020, 08:37:44 pm
content: Do you have a scope to look at the power supply rails for ripple? The power supply indicators will tell you it's there, but not necessarily if it's good. Failing filter caps can give all sorts of grief by letting noise through and into digital circuits.
New entry level 4ch DSO - Owon SDS1104 - Page 1
Forum section: electronics / testgear

author: tunk
author_rank: Super Contributor
timestamp: December 11, 2020, 11:53:04 am
content: Bandwidth 100MHz and sample rate 1GS/s.Price in Europe is €280.00.https://www.owontechnology.eu/product/2429525/owon-sds1104-100mhz-4-channel-digital-oscilloscopehttps://www.owon.com.hk/products_owon_sds1104_4ch_series__economical_type_digital_oscilloscope
Is the NI Mydaq compatible with generic (asio) audio software? - Page 1
Forum section: electronics / testgear

author: The Soulman
author_rank: Super Contributor
timestamp: December 09, 2020, 10:22:07 pm
content: I use a lot of windows based software to make measurements with (modified) sound-cards.And I may in the future have a play with the NI labview so a Mydaq seems like a nice piece of kit to have around.Before I get my hands on one, is the NI Mydaq compatible with generic (asio) audio software?

author: The Soulman
author_rank: Super Contributor
timestamp: December 10, 2020, 12:16:11 pm
content: Anyone?
Agilent E4440 series POWER SUPPLY connector pinout p/n 0950-4447 - Page 1
Forum section: electronics / testgear

author: Lew
author_rank: Newbie
timestamp: December 09, 2020, 08:27:25 pm
content: If anyone can help I am trying to find the PS enable/disable signal on the E4440 series power supply connector.I can't find any schematic or information anywhere.
LA Function: SDS2104X+ ~OR~ PicoScope - Page 1
Forum section: electronics / testgear

author: casterle
author_rank: Regular Contributor
timestamp: December 09, 2020, 04:29:04 am
content: I was about to pull the trigger on the SDS2104X Plus when I had second thoughts about its MSO's capabilities and reliability.When I first started looking for new tools, the thing I wanted most was a rock-solid, fast and flexible 16 (or more) channel LA that could handle analog as well as digital and decode/trigger on anything I'm likely to run into in the microcontroller/maker universe.The Saleae Logic Pro 16 seems to be the most loved and recommended option, but when I saw the price I decided to see what else might work, and found PicoScope. Like the Saleae, it can stream at USB 3.0 speed - I don't know if the Siglent can do this, but it's an important fallback.Is there another USB device of similar quality to the PicoScope? I haven't found one.Considering ONLY LA functionality, I'd like opinions on whether Siglent or PicoScope has better:Triggering on decodes/addresses/dataDecodesStability/reliabilityOperational flexibilityManufacturer support, especially software/firmware updatesIs there anything I should know about the LA functionality of these products?If you've used one and not the other, what do you think of the one you've used?Thank you!
New Siglent/Rigol power supplies - Page 1
Forum section: electronics / testgear

author: petert
author_rank: Regular Contributor
timestamp: December 09, 2020, 08:04:34 pm
content: Hello,Are there new Siglent or Rigol power supplies planned in the coming months?Maybe vendors on this forum could comment.

author: tautech
author_rank: Super Contributor
timestamp: December 09, 2020, 08:20:19 pm
content: Only this we know of at this time:https://www.eevblog.com/forum/testgear/siglent-sps5000x-psus-coming/ETA unknown.
Wanted: FEI FE-5440A USAF T.O. 49B3-36-2 and T.O. 49B3-36-1 manuals - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: December 09, 2020, 06:57:34 pm
content: Hello;This maybe a very long shot but I am looking for the FEI FE-5440A USAF T.O. 49B3-36-2 and T.O. 49B3-36-1 Master regulating clock manuals. -2 service, -1 operationI have scanned and uploaded the -2 manual to BAMA and Ko44b however there are a number of errors and omissions that I'd like to fix. Unfortunately it was from a copy already so there is no unwinding the trail..........These pages are known bad/incomplete:Page 8-1Page 8-5Page 8-7Page 8-75Anything out there??I did try FEI, no original PO number for the equipment, no talkie
Equipment Discounts from Peak Electronics - Page 1
Forum section: electronics / testgear

author: Cliff Matthews
author_rank: Unknown
timestamp: December 09, 2020, 02:42:25 pm
content: FYI - Dexters_lab announced a channel giveaway and a 15% discount for all gear until Jan 31 / 2021

author: bob91343
author_rank: Super Contributor
timestamp: December 09, 2020, 07:00:39 pm
content: I couldn't understand anything he said.

author: tautech
author_rank: Super Contributor
timestamp: December 09, 2020, 08:21:46 pm
content: Oh, Peak Atlas.https://www.eevblog.com/forum/buysellwanted/special-offer-to-eevblog-forum-members/
Siglent SSA3015X Help  - Page 1
Forum section: electronics / testgear

author: alannz
author_rank: Contributor
timestamp: December 09, 2020, 12:10:22 am
content: Good Affternoon All,A bit of a newwbee here sorry, I'm trying to work if there is a way to "crack" the options on a SSA3015x?I tried reading through the forums on this, but it made my head hurt trying to stich the information together.From what I understand these devices run BlackBox behind the scene and have no problems with Linux.Can someone please help me as I'm not sure but I think you need to convert the SSA3015x to a SVA or something? (a little lost sorry)Any help, gratefully accepted.With thanks

author: tautech
author_rank: Super Contributor
timestamp: December 09, 2020, 02:19:12 am
content: Welcome to EEVblog.Looking at the datasheets, SSA3015X Plus and SVA1015X have identical 1.5 GHz spectrum analyser specs however the SVA instrument has one additional option as listed below.Common to both:EMI activation licenseAdvanced measurement activation licenseDigital modulation analysis (ASK/FSK) activation licenseAnalog modulation analysis (AM/FM) activation licenseSpecific to SSA3015X Plus:VSWR/Return Loss activation license (this capability is standard/free in the SVA1015X VNA mode)Specific to SVA1015X:Distance-to-fault activation licenseInteresting exercise.

author: alannz
author_rank: Contributor
timestamp: December 09, 2020, 06:49:13 am
content: Kind of makes you wonder if you can put the SVA firmware on the SSA?
Uni-t UT216C DC Clamp meter - different readings in reverse - Page 1
Forum section: electronics / testgear

author: me3_au
author_rank: Newbie
timestamp: December 09, 2020, 12:06:57 am
content: Uni-t UT216C DC Clamp meter - new, amazonClamp on in one direction - reads about 80A, which is a close enough match to the battery monitorUnclip and clip on in opposite direction - reads a bit over -50AMost interestingAnyone seen unequal forward / reverse DC Current Clamp readings?
Help find datasheet for M6306 multimeter ADC IC  - Page 1
Forum section: electronics / testgear

author: retiredcaps
author_rank: Super Contributor
timestamp: August 14, 2015, 07:08:42 am
content: I have searched on/off over the past 2 years trying to find a datasheet for this 80 pin QFP multimeter IC. It is used in Yokogawa multimeters or in HP rebranded Yokogawa meters. It is 3200 count.I can't find anything online, so I'm hoping someone has a printed copy or can tell me who makes it and if this is a clone of another popular IC?Picture taken from modemhead's website.http://mrmodemhead.com/blog/yokogawa-7534-03-multimeter/

author: barijan
author_rank: Contributor
timestamp: July 24, 2020, 06:28:10 pm
content: I know it's an old thread, but here's some information that might be useful for the fellow forumers.This M6306 chip is actually the discontinued OKI MSM6306 3 3/4 DMM IC, used on several Yokogawa digital multimeters such as Model 7534-03 and also on some units rebranded as HP (E2378A and E2377A) and Soar (3255).Samsung released the KAD7001, a MSM6306 clone, supposed to be a direct replacement, but there are rumors that a few pins are numbered differently.Other than that, all the rest still exactly the same and it's datasheet could be a very useful resource for repairing some of these nice multimeters.Here's the Samsung KAD7001 datasheet for download:https://cdn.datasheetspdf.com/pdf-down/K/A/D/KAD7001-Samsung.pdf

author: retiredcaps
author_rank: Super Contributor
timestamp: July 24, 2020, 07:24:05 pm
content: Thanks, barijan. I appreciate the info and links in your post.

author: DaveM
author_rank: Newbie
timestamp: December 09, 2020, 02:28:09 am
content: Hi barijan:Thanks for the information you shared. I found it as I was trying to find information to repair my HP E2373A multimeter. It was invaluable.Much appreciated!
WaveSurfer 42Xs - retrofit options - Page 1
Forum section: electronics / testgear

author: Madmanguruman
author_rank: Contributor
timestamp: December 07, 2020, 03:22:21 pm
content: I have an old WaveSurfer 42Xs (Windows XP-based) which is working fairly well. The memory was upgraded from 256MB to 512MB which improved the instrument from painfully slow to almost useable - similar boot-up times to the 4-ch 64Xs model. The Celeron-class CPU in these scopes doesn't have NX-bit support, so in theory you could not go past Win7 32-bit with this instrument. Also, the HDD is 2.5" PATA.I'm still interested in improving its performance if possible. Has anyone replaced the HDD in one of these scopes with an SSD? How about more RAM - has anyone made this scope work with 1 or 2 GB of RAM? Has anyone tried to move it up to Windows 7 from XP?

author: rvalente
author_rank: Frequent Contributor
timestamp: December 08, 2020, 08:51:10 pm
content: I see no problems upgrading from a HDD to SSD, just make sure the interface is just right, clone the driver (or fresh reinstall if you can)I've never done that to T&M equipment but, did to a few HMIs, always chose SSDs from advantech, a little more expensive but worth the endurance for harsh industrial environments
LeCroy T2 USB analyzer driver issue under Win10 - Page 1
Forum section: electronics / testgear

author: blueskull
author_rank: Unknown
timestamp: October 15, 2020, 03:34:28 am
content: Since some random Windows updates, my T2 analyzer stopped working with an error 39 "bad image", and after inspecting the sys file it has a date code of 1998, so I wonder if some newer Win10 kernel update has broke backward compatibility of the USB subsystem -- my Fluke 190-II also stopped working with its previously working Win7 driver.Since MSFT mandates upgrade, resisting Windows is not an option -- none of the software work under Linux anyway, and I'm not able to install Windows 7 on newer machines anymore.So, is there a solution other than running a Windows VM just for running a piece of Windows software on Windows? Is there anyone having a beta version of the latest driver from LeCroy? I'm sure they have software QC team to test compatibility with every new OS release.

author: lzqing
author_rank: Contributor
timestamp: December 08, 2020, 07:57:31 am
content: https://teledynelecroy.com/support/softwaredownload/documents.aspx?standardid=4&capid=106&mid=533&smid=

author: jjoonathan
author_rank: Frequent Contributor
timestamp: December 08, 2020, 05:55:32 pm
content: Huh, I successfully ran my Mercury T2 on Win10 latest just last weekend. When I get home I'll dig up versions so we can be specific.

author: jjoonathan
author_rank: Frequent Contributor
timestamp: December 08, 2020, 07:54:28 pm
content: I just plugged in my T2C, opened USB Protocol Suite, and it worked. Details:
[Found] Fluke 123 firmware update tool v2.03 - Page 1
Forum section: electronics / testgear

author: kiotobg
author_rank: Newbie
timestamp: February 21, 2020, 05:14:05 pm
content: Hello friends,I am looking for v2.03 or highner version (if released) firmware of 123 scopemeter.Fluke offer as a free of charge, but... Do not sendThey ask me to have a RMA registration, but to complete registration i need a VAT number. I am a private person and do not have a VAT number of course... So absolutely non sens.In my country not service center of Fluke too...So, i hope to get help here.Thanks

author: kiotobg
author_rank: Newbie
timestamp: March 01, 2020, 03:37:13 pm
content: I found a firmware update tool in... open serverof their distributorSoftware, firmware update tools... all for freeGood bless them

author: fordem
author_rank: Regular Contributor
timestamp: May 22, 2020, 01:05:54 am
content: Like you I'm in a country where there's no Fluke service center, and shipping a working instrument back just for a firmware flash is out of the question - I recently acquired a used 123 and Fluke in the US provided the firmware flash and instructions - all I had to do was ask nicely and explain that shipping it to them was out of the question. I had the RS232 cable and a Windows 7 system with an old style RS232 port (they recommend you don't use USB-RS232 adapters), so all I needed was the software.Be aware, there are at least two and possibly three different hardware versions, you need to know what you have in order to get the correct firmware.

author: kiotobg
author_rank: Newbie
timestamp: October 29, 2020, 10:19:36 am
content: OK, i bought a cable and flash my scope.In Windows XP SP3, flash tool not worked for me (report that reading data from scopemeter lost).I flash my scope under Windows 7 SP1 without any problem.So, you must set com port of cable between port 5 and 8. I set port to 8 with speed of 19200 bits per second (settings attached).Picture attached.Now my scopemeter has a firmware 2.03.Be careful, this is only flash scopemeters with firmware v2.xxDo not flash scopemeters with firmware 1.xx!!!

author: lzqing
author_rank: Contributor
timestamp: December 08, 2020, 07:50:28 am
content: I had v1.08 ,FYI.Do not try it if you are using v2.xx firmware.
Repairing an HP / Agilent E4402B (probably not a divider problem) - Page 1
Forum section: electronics / testgear

author: unprintable
author_rank: Newbie
timestamp: December 02, 2020, 10:35:50 pm
content: Hi all!I am trying to repair an E4402B.I already viewed the videos of The Signal Path and verified the integrity of the dividers on the backside of the A8 assembly.Sadly, these are working correctly.Also the 600MHz is present and correctly divided 128/129.The error behaviour is a bit weird to me, i got an unlock and unlevel message only below 700MHz.When i hit 700 and go above, these errors disappears.I was also looking over the block diagrams but i really got stuck...Would really appreciate to find help with this!Thanks in advance!Regards,Alex

author: unprintable
author_rank: Newbie
timestamp: December 08, 2020, 04:55:36 pm
content: No one a clue?
Fluke 9604A - Page 1
Forum section: electronics / testgear

author: ttbelectronics
author_rank: Contributor
timestamp: December 08, 2020, 09:32:35 pm
content: I got a Fluke 9604A for repair failing self test Inguard Supply.When I opened the unit I saw the inguard supply with PCB trails very bad corroded by capacitor fluid leaked on the board.Also missing some capacitors, this unit has 11 electrolitycs capacitors 3300uF x 35V and is missing 2 smaller size.If anyone knows what are the values for the 2 small ones would please let me know?Thanks to all.
Aftermarket bench DMM test leads? - Page 1
Forum section: electronics / testgear

author: iXod
author_rank: Frequent Contributor
timestamp: December 07, 2020, 09:11:32 pm
content: Searching, I see that most meter test leads have right-angle banana plugs. This doesn't work well for a bench DMM: difficult to plug/unplug, interfere with some push-buttons, etc.What are the recommended aftermarket test leads with straight bananas for this type of meter?Thanks.

author: purpose
author_rank: Frequent Contributor
timestamp: December 07, 2020, 09:28:22 pm
content: Probe Master sounds right up your street. They offer several options for straight connectors and made in USA.

author: bdunham7
author_rank: Super Contributor
timestamp: December 07, 2020, 09:39:15 pm
content: I have Fluke TL221 leads and they can be used with a whole slew of ends--the Fluke slim-probes, the TP175E twist-guard probes, the excellent Probemaster test hooks and banana-to-alligator clips that I have a bunch of from Scopemeters. They can also take those Pomona long-nosed alligator jaw things for electrical panel work, but not to likely to need those on a bench meter. Probemaster stuff is also nice, but their equivalent test leads have a retractable sheath that is handy in that it will fit ancient DMMs, but I don't think they're as nice otherwise.
How to script a waveform for Rigol? - Page 1
Forum section: electronics / testgear

author: Gandalf_Sr
author_rank: Super Contributor
timestamp: December 07, 2020, 11:27:28 am
content: I have 2 Rigol AWGs, a DG4162 and a DG992, I also have an MSO5074 with AWG.I know that I can use Rigol's Ultra Sigma software to plot points on a waveform but tracing out the sine wave seems silly plus I would have to buy a license and all I want to do is set up a 1 kHz sine wave at 15 mV pk-pk and then change the amplitude to 500 mV pk-pk.Is there a simple way to write a script that sends commands to the signal generator in some timed way and can that be done using free tools? So I looked back at this subject and realized it's come up for me before when trying to calibrate my DP832A. What that thread seems to have settled on is using Python running on PyCharm so I have that already installed (along with PyVISA); I could use some guidance on how to get started writing a script in PyCharm that would allow me to run the Rigol SCPI commands.Thanks in advance
DMM Escort 179 data logging software - Page 1
Forum section: electronics / testgear

author: waynel
author_rank: Newbie
timestamp: December 05, 2020, 11:46:44 pm
content: Hi there I have had a Escort 179 for many years and now have a need to use the IR interface with the data logging software that came with the meter.But... I recently had a clean out and threw out the 1.44 floppy with the software on it, foolishly thinking I could find it on the manufacturers web site. Lo and behold they don't seem to have a presence anymoreI saw some mention of the Escort meters on this site, so I was wondering if anyone in the community has this software or knows of a site that has the software.CheersWayne

author: Wytnucls
author_rank: Super Contributor
timestamp: December 06, 2020, 09:33:35 am
content: https://eshop.micronix.eu/measurement-equipment/electrical-quantities/multimeters/software/cp-05.html

author: waynel
author_rank: Newbie
timestamp: December 06, 2020, 10:00:44 pm
content: Frustratingly, that website doesn't appear to support shipping overseas easily. From what i can see there is only a personal pickup option when using your credit card. Ultimately i would prefer to use PayPal.I have emailed to see what can be done.As i already have the interface cable i really only want the software. Does any one else know where i could get just the software. Is there a manufacturer site with a support area i could access. The manufacturer seems to be Taiwan Wealthy ESCORT but you can imagine the results i get when googling that.Regards
ENIGMA TOOL PROGRAMMER - Cable C4 or A4 - Page 1
Forum section: electronics / testgear

author: Franco
author_rank: Newbie
timestamp: December 06, 2020, 03:00:21 pm
content: Hello everyone, I am looking for who can help me to build a Cable for ENIGMA programmer, I need the model "C4 cable", just to know the wiring diagram from DB-9 to DIP-8, then I can do it myself.If some else have this Enigma programmer and the "cable C4 or A4 adapter", could do the wiring diagram of DB-9 to DIP-8 ??Thank you all.
Keithley 2000 Measurement Anomalies - Page 1
Forum section: electronics / testgear

author: reinardvanloo
author_rank: Newbie
timestamp: December 06, 2020, 01:02:57 pm
content: Hi All,A bit dumbfounded by the following. Using my Keithley 2000 to measure some spots in a synthesiser I am repairing (Korg PolySix, RAM battery area for those interested) and am getting some weird readings with my Keithley 2000 that do not match expectations nor measurements with a handheld multimeter (Agilent U1231A). Pls refer to the diagram with an overview of the problem.I am lazy, so when measuring often I do not care about polarity: reversing the + and - probes should only change the sign, right?. So when I check with my Keithley 2000 the voltage across the RAM chip that should hold internal settings when power off , I measure with reversed probes -4.1 volts huh? Now put on the probes correctly: +3.9V. (should be between 2.1V and 3V)After some fooling around noticed, that the 10V range of the keithley has 10Gohm input impedance.... tried the 100V range (10Mohm) and all voltages measure as expected and are corroborated by the hand multimeter. Back to the 10V range: still weird values, also when reversing probes.Started measuring my lab power supply: measures ok, also when reversing probes. Measured another spot in the circuit (across the PSU caps, they still hold some charge in power off state) and that measures also ok in the 10V range, also when reversing probes.I did a self test of the Keithley 2000, failed initially at the 300.1 test. After cycling the front/back switch multiple times this fault did not appear anymore.Q: Is my 2000 faulty or am I misunderstanding something on how the 2000 measures in 10Gohm impedance mode?regards,---Reinard

author: The Soulman
author_rank: Super Contributor
timestamp: December 06, 2020, 01:35:00 pm
content: Interesting, could there be any noise/ripple on the 3.0V rail?You could try measuring a battery with the keithley, if the reading is then still off compared to the 100V range and the agilent, something is likely wrong with the 10V range...edit:didn't read this:QuoteSo I'd expect noise on the rail or your wiring setup.

author: Kleinstein
author_rank: Super Contributor
timestamp: December 06, 2020, 01:45:10 pm
content: If the voltage source measured is really high impedance and nonlinear (e.g. like through diode leakage current), it can happen that the high Z mode (10 V range) can give odd looking readings. This is than the fault of the circuit. In high Z mode there can still be some input bias current of several 10 pA and with a near open circuit this can make a difference on reversing the leads.Things can get worse than normal if the DMM has higher than normal input bias, e.g. from contamination of maybe a slight damage from ESD of similar. One can relatively simple check by looking at the voltage drift with a good (e.g. PP or PS film type) capacitor of some 10 nF at the input. The slower the voltage drifts in the 10 V range the better. 10 pA and 10 nF would be some 1 mV per second.
Keysight U1272A firmware file - Page 1
Forum section: electronics / testgear

author: Caliaxy
author_rank: Frequent Contributor
timestamp: December 05, 2020, 12:53:45 am
content: I was planning to update the firmware of my Agilent U1272A, from ver. 1.0 to ver. 3.03.I have a hard time downloading the firmware file from the Keysight website. The download never completes, it always provides an incomplete zip file. Same for the previous version, 2.04. I had no problem downloading the much larger data logging software and the drivers for the IR USB cable.Does anybody happen to have a ver. 3.03 firmware file for U1272A and is willing to share it?

author: PushUp
author_rank: Regular Contributor
timestamp: December 05, 2020, 03:41:15 am
content: I did the DL with jDownloader checking for any CRC-Errors, which is fine, but I don't take over any guarantee!Unfortunately the froum has a 4MB limit: "Your file is too large. The maximum attachment size allowed is 4000 KB."Therefore I can only upload to Rapidgator:https://rapidgator.net/file/659c0c8a3ef898cfa9a9d1b0535d272f/U1271A_U1272A_Firmware_Update_Software_Version_3.03.zip.htmlBy the way: You have to go manually into the "Keysight Technologies" folder within "Program (x86)", in order to start the software.Do a reset of the DMM before you do anything, check the com port and baudrate before doing the update process!I did the update for both U1272A and U1273A, but it is long time ago - be careful!

author: Caliaxy
author_rank: Frequent Contributor
timestamp: December 05, 2020, 09:04:56 pm
content: Worked like a charm. Thank you so much!
SDS1104X-E Decoder output via SCPI? - Page 1
Forum section: electronics / testgear

author: teddyz
author_rank: Newbie
timestamp: December 05, 2020, 06:26:44 am
content: I successfully decoded some data. I can find a some USB-stick and save the data to it and then move it to my PC.But is it possible to ask (politely) via SCPI (on built in webpage) and retrieve the data that way?/Dick

author: tautech
author_rank: Super Contributor
timestamp: December 05, 2020, 07:05:42 am
content: Welcome to the forum.Saving files via the webserver Instrument Control feature is conceivably even easier than SCPI.Enter Instrument Control and top right is a small vertical blue bar, click it to expand the webserves version of the front panel controls and below them is another set of virtual buttons that are shortcuts to take advantage of the fast DSO to PC connection.The one you'll want isWaveform Savewhich instantly dumps a .BIN file into your PC browsers download folder.Mostly we want such dumps as a CSV so the next button along titledBIN to CSV tooldrops a little app into your browsers download folder too.Install this tool on your PC and run all BIN captures through it to be converted into CSV's so you can further process them as required.Once set up to do a BIN capture and convert it to a CSV the time required is far less than it took me to write this post.Have fun.

author: teddyz
author_rank: Newbie
timestamp: December 05, 2020, 07:31:50 am
content: Thank you for for answering my question so fast!I had always wondered why the tab was named "Instrument Control" instead of "Instrument Display", and thanks to you I now know that it is possible to use this instead of the instrument's buttons.The converter program works, I get a long csv with the samples.But I was not clear on what I wanted. I have decoded some serial port data and can see the result as a list on screen (and thanks to you I can scroll that list from my PC) or I can save it to USB.It would be simpler if the instrument could send the decoded data to my computer./Dick

author: tautech
author_rank: Super Contributor
timestamp: December 05, 2020, 07:10:12 pm
content: Quote from: teddyz on December 05, 2020, 07:31:50 amNot only is the webserver useful for local instrument control but long distance remote control.A member here kindy opened network ports for myself and a buddy and from NZ we were able to control his instrument in the USA and look screenshots remotely to prove it !QuoteHmmm, I had a bash around in my SDS1104X-E and couldn't see a way to get only the decoded list sorry.Other than a work around of successive screenshots of the list and scrolling down it and grabbing another screenshot I don't see a way to accomplish what you need.