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Search found 33 matches

by Kiriakos
November 11th, 2020, 11:58 pm
Forum: General Discussion
Topic: Reject system voltage noise
Replies: 1
Views: 258

Re: Reject system voltage noise

When you are up to measure a ripple (or peak) voltage, by using a programmable DC Load, noise generation happens from programmable DC Load it self.

If you are up to evaluate voltage noise under load, you should use resistive load all times.
by Kiriakos
November 11th, 2020, 11:47 pm
Forum: General Discussion
Topic: DUT / automatic video content glitch testing
Replies: 1
Views: 20

Re: DUT / automatic video content glitch testing

Down to plain troubleshooting, I would worry about the power supply of your GV Kayenne switcher.
And I would add also one uninterruptible power supply (UPS) at the ACV side for max protection against Mains voltage fluctuation.
by Kiriakos
November 11th, 2020, 11:35 pm
Forum: General Discussion
Topic: Question about uncertainties
Replies: 2
Views: 70

Re: Question about uncertainties

While the theoretical question it did receive an answer, there is also uncertainty specification for the DC voltage source. Uncertainty specifications for digital multimeters this has importance only if you think to perform inspection of calibration. There is a function at respectable multimeters, t...
by Kiriakos
July 1st, 2020, 2:25 am
Forum: DMM7510 Graphical Sampling DMM
Topic: Loss of graphing precision
Replies: 2
Views: 225

Re: Loss of graphing precision

I have one golden idea, how about you to stop thinking the digitized recording as this be a mistake less God.
You may always use an external application for logging.
by Kiriakos
May 27th, 2020, 7:02 am
Forum: Other DMM's
Topic: DMM4040 Secondary Function SCPI Commands
Replies: 1
Views: 268

Re: DMM4040 Secondary Function SCPI Commands

I have teamed with a software developer from Japan and we made full use of SCPI commands. DMM4040 this is FLUKE hardware and internal software. The second function this has limited control due SCPI, you may simply select it and get a fixed (hardware defined) sampling rate. https://www.ittsb.eu/TsDMM...
by Kiriakos
April 12th, 2020, 6:49 am
Forum: General Discussion
Topic: Freeware data logging software DMM4050, DMM4040
Replies: 0
Views: 302

Freeware data logging software DMM4050, DMM4040

Get ready to discover the Freeware data logging software this be developed beginning 2020, so this now supporting our “digitally measuring investments”.

DMM4050, DMM4040 / FLUKE: 8846A, 8845A

https://www.ittsb.eu/TsDMMViewer-Data-L ... reece.html
by Kiriakos
April 12th, 2020, 5:42 am
Forum: General Discussion
Topic: Best of Tektronix Lot?
Replies: 2
Views: 443

Re: Best of Tektronix Lot?

There is no BEST ... at buying products not in production any more. Tek has active the most unreasonable product support policies in the entire Europe. I got a used DMM4050 this be 2013 production, now I can not buy even the plastic handle of it. This is actually re-branded FLK 8846A, and so after E...
by Kiriakos
January 7th, 2020, 1:46 pm
Forum: Series 2000 and Series 2100 DMM's
Topic: New 2220-30-1 DMM eeprom fails at start up..
Replies: 1
Views: 252

Re: New 2220-30-1 DMM eeprom fails at start up..

Get in contact with keithley - Tek service center in Germany.
If you do not accept their pricing , then send them all to recycle facility for scrap metal.
by Kiriakos
June 17th, 2019, 1:35 pm
Forum: Other DMM's
Topic: 2019 DMM4050 Newest Firmware verification
Replies: 12
Views: 12197

Re: 2019 DMM4050 Newest Firmware verification

I do not think, I am Kiriakos Triantafilou a 50 years old freelancer troubleshooter, with a true repairs lab. I have proofs and I always talk with facts. This is why Real electrical test and measurement corporations trust me. Keysight discovered me at EEV Blog and selected me from entire Europe, bec...
by Kiriakos
June 16th, 2019, 10:36 am
Forum: Other DMM's
Topic: 2019 DMM4050 Newest Firmware verification
Replies: 12
Views: 12197

Re: 2019 DMM4050 Newest Firmware verification

It depends of whom is holding the soldering iron (experience).
It depends of getting at hand the exact component.
it depends if your soldering tools are made for such a job.

The software it is still there, the circuit does not boot up.
by Kiriakos
June 16th, 2019, 2:14 am
Forum: Other DMM's
Topic: 2019 DMM4050 Newest Firmware verification
Replies: 12
Views: 12197

Re: 2019 DMM4050 Newest Firmware verification

InGuard IC memory corruption this translates: incoming measuring electrical parameter was greater than what input protection was capable to handle. This is the opposite condition of some else in the USA, he is trying to sell on eBay several used DMM4050 all electrocuted ones, due their LAN ports. He...
by Kiriakos
June 15th, 2019, 10:11 am
Forum: Other DMM's
Topic: 2019 DMM4050 Newest Firmware verification
Replies: 12
Views: 12197

Re: 2019 DMM4050 Newest Firmware verification

You seem hiding the all story behind your DMM, because nothing stops you from posting a photo as I did. I did see a photo of such DMM with identical problem from an American this posted in a Blog about a year ago. What it should really bother you, this is if your DMM this is still capable to save in...
by Kiriakos
June 15th, 2019, 6:51 am
Forum: Other DMM's
Topic: 2019 DMM4050 Newest Firmware verification
Replies: 12
Views: 12197

Re: 2019 DMM4050 Newest Firmware verification

I am all ears if you did discover any Bug.

And no, Tektronix has removed product support for this series, they do not deliver at user hands even a screw.
by Kiriakos
April 25th, 2019, 2:21 am
Forum: DMM7510 Graphical Sampling DMM
Topic: 4-Wire Measurement Issues
Replies: 2
Views: 10189

Re: 4-Wire Measurement Issues

4-Wire measurement of very low resistance this is prone to room temperature. DMM calibration for Zero Ohms (at input) this is made at 23C, In a cold room, zero Ohms CAL this gets negative Ohm values that Zero-Ohm math setting (offset compensation) cannot remove. For best results DUT temperature shou...
by Kiriakos
April 25th, 2019, 1:59 am
Forum: DMM7510 Graphical Sampling DMM
Topic: Strange readings when measuring current.
Replies: 4
Views: 5962

Re: Strange readings when measuring current.

For calibration comparisons if you do not own a proper manufactured short plug, any comparisons using DIY toys they are not considered as valid. This is a great way to protect yourself from questions. According my views, they are answers which I own nowadays, and they did not come from Google searc...
by Kiriakos
April 10th, 2019, 11:16 am
Forum: DMM7510 Graphical Sampling DMM
Topic: Strange readings when measuring current.
Replies: 4
Views: 5962

Re: Strange readings when measuring current.

For calibration comparisons if you do not own a proper manufactured short plug, any comparisons using DIY toys they are not considered as valid. But you can not be blamed when TEK it self, does not offer pricing and product information for their own 4X short plug, there is no photograph of it anywhe...
by Kiriakos
March 15th, 2019, 12:37 pm
Forum: Programming Support
Topic: DMM4050 Error 511
Replies: 10
Views: 18798

Re: DMM4050 Error 511

I am just an unordinary electrician, avoiding LabVIEW by choice. I was forced to do a fresh homework regarding NI software because of DMM4050 and now I am aware of these details: LabVIEW this is capable using a multimeter driver this not including graphical representation (GUI). Old SignalExpress 2....
by Kiriakos
March 14th, 2019, 3:25 am
Forum: Programming Support
Topic: DMM4050 Error 511
Replies: 10
Views: 18798

Re: DMM4050 Error 511

Yes this is the only one ever made, and my notes above they are about it. Driver Specifications Manufacturer(s): Tektronix Interface(s): IEEE 488.2 (GPIB), Serial Instrument Type(s): Meter Driver Version: 1.0 Original Release Date: 05-OCT-2009 The new question this is why is so difficult for TEK ? s...
by Kiriakos
March 12th, 2019, 3:09 pm
Forum: Programming Support
Topic: DMM4050 Error 511
Replies: 10
Views: 18798

Re: DMM4050 Error 511

Hi David, Your link does redirect properly. Therefore feel free adding it again. I am using SignalExpress Tektronix Edition, which this is still usable at my WinXP Pro PC box which has loaded several paid software which this worth much more than the price of the operating system. Software EOL date t...
by Kiriakos
March 11th, 2019, 2:54 pm
Forum: Programming Support
Topic: DMM4050 Error 511
Replies: 10
Views: 18798

Re: DMM4050 Error 511

Hi David, The true hint and answer this is not noticeable or almost hidden at fine print of page 1-26 DMM4050 User manual. (Measurements rate chart IEEE448) Note number 4: Mention that DMM4040 & 4050 both are Baud Rate dependable regarding remote logging speed. I did unplug my fancy RS232 to Bluetoo...

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