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Search found 102 matches

by Vince W
June 3rd, 2015, 11:02 am
Forum: 2600 Series SourceMeter
Topic: Keithley 2636B developed by C++
Replies: 2
Views: 11310

Re: Keithley 2636B developed by C++

Sorry for the late reply. The release notes for our 2600A/B Series IVI-COM driver can be downloaded at http://www.keithley.com/support/data?asset=52032 The examples provided require Visual Studio 2010 or later. This may be the issue you are having. Regarding your #2 question. "can you tell me where ...
by Vince W
June 3rd, 2015, 8:36 am
Forum: 4200-SCS Semiconductor Parameter Analyzer
Topic: HDMI / DVI for SCS 4200
Replies: 1
Views: 9140

Re: HDMI / DVI for SCS 4200

Not sure what you are suggesting here. The video output of the 4200-SCS is on an XVGA connector, and is not HDMI or DVI. The cables which connect the 4225-PMU to 4225-RPMs are the same as HDMI cables. However, they do not carry video signals and these connections are not HDMI or DVI. The cables whic...
by Vince W
July 31st, 2014, 5:03 pm
Forum: Low Current Measurements
Topic: Low current measurement with high voltage
Replies: 9
Views: 31989

Re: Low current measurement with high voltage

Hello jehugo, sorry for the delay. We do not make a protection module which is rated for up to 35kV, or one specifically designed for the 6514. Our 2290-PM-200 protection module is designed for our 10kV power supply 2290-10 or our 5kV power supply 2290-5. The 2290-PM-200 protection module is designe...
by Vince W
May 7th, 2014, 7:33 am
Forum: Low Current Measurements
Topic: Low Level Measurements, 7th edition
Replies: 3
Views: 14230

Re: Low Level Measurements, 7th edition

Hi Brad, Sorry about the delay - I was at the show and probably met you there. We had a lot of demand for the Low Level Measurements Handbook at that show and others. Your requests will eventually be fulfilled, but in the meantime you can read the handbook -: http://info.tek.com/KI-Low-Level-Measure...
by Vince W
May 7th, 2014, 7:10 am
Forum: Low Current Measurements
Topic: Low current measurement with high voltage
Replies: 9
Views: 31989

Re: Low current measurement with high voltage

Please understand that Keithley/Tektronix is bound to safety regulations which were not in place for the 248. Since the 6485 does not source high voltages, there is no need for an interlock, just protection. We take safety measures very seriously. Our position is that its a bad idea to risk exposure...
by Vince W
May 6th, 2014, 4:46 pm
Forum: Low Current Measurements
Topic: Low current measurement with high voltage
Replies: 9
Views: 31989

Re: Low current measurement with high voltage

That application of the 2290-PM-200 SMU is not something we recommend. You would be entirely on your own responsibility using the 2290=PM-200 that way. As I mentioned earlier, the 248 and 6485 do not have safety interlock mechanisms so we cannot recommend them for this high voltage application.
by Vince W
May 6th, 2014, 3:12 pm
Forum: 4200-SCS Semiconductor Parameter Analyzer
Topic: Sampling mode
Replies: 1
Views: 9226

Re: Sampling mode

Yes it does. Keep in mind that this is not a supported feature... meaning that it could change with a future revision to the 4200-SCS platform. If you are using sampling mode for SMU's, you probably have found that the actual timestamps can differ from the sample rate you request between SMU samples...
by Vince W
May 6th, 2014, 12:26 pm
Forum: Low Current Measurements
Topic: Low current measurement with high voltage
Replies: 9
Views: 31989

Re: Low current measurement with high voltage

This is a very difficult problem. The 248 power supply will provide 4kV, but you do risk damaging the 6485 if it is exposed to that voltage, even if it is connected to the low side of the power supply. The maximum input voltage the 6485 can tolerate is 220VDC. Also, we cannot recommend a way to conn...
by Vince W
October 16th, 2012, 2:55 pm
Forum: 2651A High Current SourceMeter
Topic: TCPIP Low Frequency Error on "Print Number.vi"
Replies: 3
Views: 15622

Re: TCPIP Low Frequency Error on "Print Number.vi"

For some reason, we can not post the word V I S A. So if you see a dash, please substitute that word.
by Vince W
October 16th, 2012, 2:53 pm
Forum: 2651A High Current SourceMeter
Topic: TCPIP Low Frequency Error on "Print Number.vi"
Replies: 3
Views: 15622

Re: TCPIP Low Frequency Error on "Print Number.vi"

I have not seen these timeout errors while communicating with the 2651A via Ethernet. I suggest that you check the VISA library you are using to make sure it is updated, just in case there is an issue with your vendor's VISA libraries. You can check the VISA attribute for the TCPIP interface you are...
by Vince W
October 16th, 2012, 2:31 pm
Forum: 2651A High Current SourceMeter
Topic: a labview current sourcing sample need for 2651a
Replies: 4
Views: 18329

Re: a labview current sourcing sample need for 2651a

Just in case you have not figured this out already last year, I want to make sure your question is answered. If you are NOT using 4-wire measurements and are indeed using 2-wire measurements, it makes sense to me that the battery voltage would be higher with 2-wire measurements, if you are sourcing ...
by Vince W
October 16th, 2012, 2:10 pm
Forum: 2651A High Current SourceMeter
Topic: PULSING 50A WITH 2651A SOURCE METER
Replies: 2
Views: 12814

Re: PULSING 50A WITH 2651A SOURCE METER

I believe the Error -222 could be caused by an error in the example code in Chapter 5 of the 2651A User's Manual. A line is missing from each of the CapturePulseV() and CapturePulseI() functions in the manual. If you are using TSB, you can simply use the "KE2651A_Fast_ADC_Usage" example script, whic...
by Vince W
August 2nd, 2012, 3:49 pm
Forum: LabView Drivers
Topic: LabView "Error 7" "Board Missing" error
Replies: 1
Views: 10930

LabView "Error 7" "Board Missing" error

Thought this might be a timesaver for anyone using a Keithley instrument and having trouble talking to it from LabView through an Agilent GPIB interface. PROBLEM: Cannot communicate with any instrument via LabView and an Agilent GPIB interface. This case example was using an Agilent GPIB interface a...
by Vince W
May 22nd, 2012, 4:31 pm
Forum: 2651A High Current SourceMeter
Topic: Sync 2651A and 3706A script
Replies: 1
Views: 11977

Re: Sync 2651A and 3706A script

The approach depends on whether you are performing your voltage sweep using pulses or DC, and how you are programming the 2651A. The short answer would be to write TSP scripts. If you are not already familiar with TSP, I suggest starting there. One very nice feature of the 2651A and 3706A is that th...
by Vince W
May 22nd, 2012, 3:57 pm
Forum: 2600 Series SourceMeter
Topic: Disabling Data logging on 2602a
Replies: 1
Views: 8691

Re: Disabling Data logging on 2602a

This is not a typical way to use a 2602A source meter, though I believe it is possible. Have you contacted your local Keithley Applications Engineer to check availability for providing services? Here is a link to our sales offices: http://www.keithley.com/company/salesoffices
by Vince W
May 22nd, 2012, 3:49 pm
Forum: 2651A High Current SourceMeter
Topic: 2651A stress test
Replies: 1
Views: 10232

Re: 2651A stress test

Hello, Yes, you can set the 2651A as a constant-voltage source and measure current. We have example labview programs with our driver download: http://www.keithley.com/support/data?asset=55830 You did not mention what the current is that you are expecting to measure or the voltage you intend to sourc...
by Vince W
May 22nd, 2012, 3:34 pm
Forum: 2400 Series SourceMeter
Topic: High power application- multiple Keithley 2425's
Replies: 1
Views: 8440

Re: High power application- multiple Keithley 2425's

I recommend using the 2651A source meter as it can source up to 10A at up to +/20V and 5A up to +/-40V. If you require a higher voltage range, we support using two in series (back-to-back) to achieve up to an 80V difference. With pulsing, this source meter can source up to 50A. While it may be possi...
by Vince W
May 22nd, 2012, 2:58 pm
Forum: Series 3700 Switch System/Multimeter and Plug-In Cards
Topic: 3706 (with high amp switch card) to a 2430 using a gpib 488B
Replies: 1
Views: 9341

Re: 3706 (with high amp switch card) to a 2430 using a gpib

I'm not sure which switch card you mean by "high current". I recommend using the 3721 switch module if you have a 3706 frame already. The 2430 can source +/-1.05A max DC current, but can pulse +/-10.5A. The 3721's current capacity is 2A DC on 20 4-wire channels and 3A DC on 1 4-wire channel. The 372...
by Vince W
March 20th, 2012, 4:23 pm
Forum: Series 2000 and Series 2100 DMM's
Topic: Keithley 2001 and 7001 combo for 4 wire resistance measureme
Replies: 1
Views: 9998

Re: Keithley 2001 and 7001 combo for 4 wire resistance measu

Hello,

Please provide the specific Keithley LV driver call you are calling and the arguments you are passing. Then, please provide the arguments you do not have that would satisfy your requirements. I do not fully understand the gaps in our LV driver that you are describing.

Vince W
by Vince W
March 20th, 2012, 4:15 pm
Forum: 2400 Series SourceMeter
Topic: about standard sample
Replies: 1
Views: 8228

Re: about standard sample

The 2400 instrument is calibrated at the factory on shipment which is guaranteed for 1 year after delivery. Beyond that, the instrument should be calibrated at Keithley to insure accuracy on all measurement ranges. As long as your instrument is calibrated, we guarantee our published specifications. ...

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