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Search found 102 matches

by Vince W
March 20th, 2012, 4:06 pm
Forum: Series 3700 Switch System/Multimeter and Plug-In Cards
Topic: blocking command
Replies: 5
Views: 19206

Re: blocking command

I have not found a way to execute a script on a Trigger Event. I do not think this is possible. The unfortunate situation is that TSP is not able to process ICL commands while executing a script. It is possible to allow the trigger model to complete while executing a script, but even during a trigge...
by Vince W
March 7th, 2012, 3:07 pm
Forum: S530 Parametric Test Systems
Topic: S400 Instrument Controller Programming
Replies: 2
Views: 13487

Re: S400 Instrument Controller Programming

What I've found out so far is that we have never documented the Ethernet interface between the controller and core of the S400. This ethernet interface has been proprietary and has not been supported for external use. We have provided documents which describes the LPT library on the S400 platform, w...
by Vince W
March 6th, 2012, 9:46 am
Forum: Series 3700 Switch System/Multimeter and Plug-In Cards
Topic: blocking command
Replies: 5
Views: 19206

Re: blocking command

Hello,

I don't think there is a way to execute a function on a trigger event, but I will ask the factory team and get back to you here.

Vince
by Vince W
March 5th, 2012, 10:22 am
Forum: S530 Parametric Test Systems
Topic: S400 Instrument Controller Programming
Replies: 2
Views: 13487

Re: S400 Instrument Controller Programming

The S400 product is discontinued and this information is difficult to locate as it is not on our web site. However, I will ask around to see what is available still.
Regards,

Vince W
by Vince W
February 21st, 2012, 8:20 pm
Forum: Series 2000 and Series 2100 DMM's
Topic: syncronize measurements
Replies: 1
Views: 8668

Re: syncronize measurements

Hell tanjug, If you use a common external trigger and triggered measurements for both 2002 DMM's, yes that will assure a simultaneous measurement. If you use the "VOLT METER COMPLETE" output of one DMM to trigger another, you will get sequential measurements since the "VOLT METER COMPLETE" output is...
by Vince W
February 21st, 2012, 2:11 pm
Forum: 7000 Series Switch
Topic: ROUT:OPEN:ALL order
Replies: 1
Views: 10329

Re: ROUT:OPEN:ALL order

Hello chrismu,

I don't think there is a guaranteed order or timing for each switch opening in a multiple-open command. You would be best off opening them in an explicit (safe) order of sequence.

Vince W.
by Vince W
February 21st, 2012, 1:45 pm
Forum: Electrometers
Topic: Zero Correct or Reference value on Keithley 6517B
Replies: 1
Views: 9347

Re: Zero Correct or Reference value on Keithley 6517B

I'm not sure why the instrument gives you the "Execution Error". Do you know which command is causing this error? It is possible that if you are sending these commands rapidly one after another, that they are not completing within the instrument before you send the next. My advice would be to try se...
by Vince W
February 21st, 2012, 1:31 pm
Forum: 2400 Series SourceMeter
Topic: 2410 Manual Fast Meas-Source Application
Replies: 1
Views: 8483

Re: 2410 Manual Fast Meas-Source Application

I'm not sure that the programming language you use will make a significant difference in response times. The longest portion of the (source - measure - respond - source) loop here would be the 2400's command processor and its ability to change the output to the new source level and become stable. Re...
by Vince W
February 21st, 2012, 12:41 pm
Forum: 2400 Series SourceMeter
Topic: Measurement Range vs. Compliance Range
Replies: 2
Views: 12014

Re: Measurement Range vs. Compliance Range

As I did not comment on the ...RSYN ... command, I'm following up here.

As the RSYN does synchronize the measurement and compliance ranges, you are still limited to setting a compliance value >= 0.1% of the compliance range (measurement range) setting at the time of the command.
by Vince W
February 21st, 2012, 12:32 pm
Forum: 2400 Series SourceMeter
Topic: Measurement Range vs. Compliance Range
Replies: 2
Views: 12014

Re: Measurement Range vs. Compliance Range

Hello Franksd, Perhaps the confusion is that setting a voltage range will implicitly set a compliance level, but not vice versa. From your code, you see that the voltage sense range is most likely 20V (max/default compliance is 105% of sense range). While you cannot set a sense range for the paramet...
by Vince W
February 21st, 2012, 12:01 pm
Forum: Low Current Measurements
Topic: Noise Suppression Function
Replies: 1
Views: 9666

Re: Noise Suppression Function

Which electrometer are you using? If it is the Keithley model 6514, your function sounds more like Zero Correct which is an algebraic subtraction. Depending on the offset, this may not be the best way of correcting for offsets and achieving the highest possible accuracy. On the 6514 the Autozero fea...
by Vince W
February 21st, 2012, 11:43 am
Forum: Low Current Measurements
Topic: Stable current readout of a 6514
Replies: 1
Views: 9879

Re: Stable current readout of a 6514

Hello Dennis, It is difficult for me to see what you are measuring and the difference between when this measurement setup is able to achieve what you want, and then what changes when you are occasionally seeing higher current readings. What range are you using on the 6514? Is this auto-ranging? You ...
by Vince W
February 21st, 2012, 11:30 am
Forum: Series 3700 Switch System/Multimeter and Plug-In Cards
Topic: blocking command
Replies: 5
Views: 19206

Re: blocking command

Hello 3706User, I see your dilemma and I cannot think of a direct solution other than to consider the built-in DMM math functions that would occur as part of the measurements. Depending on the operation and how you are scanning, these may be of some help. See the 3706 Reference Manual, pp.13-147 and...
by Vince W
July 14th, 2011, 6:24 pm
Forum: Resistivity Measurements
Topic: The best device to measure the resistance of thin films
Replies: 1
Views: 10749

Re: The best device to measure the resistance of thin films

I think there are several Keithley products that could measure resistivity, and have a resistance measurement capability to 20TOhms. The key is what voltages and current levels you wish to measure or source (accuracies), and whether you would like to use the instrument for other IV measurements too....
by Vince W
July 14th, 2011, 3:55 pm
Forum: ExcelLINX
Topic: can't complete configuration task
Replies: 4
Views: 18021

Re: can't complete configuration task

Hello again Rémi, I was not able to reproduce your exact error message (even an English equivalent). I recommend making sure that you verify the VISA connection settings using the Keithley Configuration Panel. Then, with the Keithley Communicator, be sure you can open the VISA Instrument (for exampl...
by Vince W
July 14th, 2011, 1:26 pm
Forum: ExcelLINX
Topic: can't complete configuration task
Replies: 4
Views: 18021

Re: can't complete configuration task

Hello Rémi,

I will try this and get back with you. When you say you were "able to test the connection in the keithley control panel". How far were you able to get to verify this? Did you send a command and receive a response from the 2700?

Vince
by Vince W
July 14th, 2011, 12:48 pm
Forum: Resistivity Measurements
Topic: thickness limitations
Replies: 1
Views: 9783

Re: thickness limitations

The specifications for the 6105 are only for covered for the range of sample thickness from 0.159cm to 0.635cm, so we don't have any guidelines on how it will perform outside of that range. You would be operating out of the fixture's specified range if you tested a sample with a thickness of less th...
by Vince W
July 14th, 2011, 11:54 am
Forum: Series 2700 Multimeter/Data Aquisition/Switch System
Topic: Hi-speed current measurement with 2701/7710
Replies: 2
Views: 11890

Re: Hi-speed current measurement with 2701/7710

Hello, The 7710 switch module measures DC and AC Volts, Temperature, Resistance, and Continuity measurements, but not Current Measurements. Yes, you could add shunt resistors to your 3 current measurement channels, and make voltage measurements. However, your calculated current measurements would be...
by Vince W
July 14th, 2011, 11:14 am
Forum: Electrometers
Topic: 6517B Ohms Alternating Polarity Specification
Replies: 1
Views: 8974

Re: 6517B Ohms Alternating Polarity Specification

Hello, Very good question. It does resolve to a unit-less number which is a factor. The calculation is total contributions of Voltage error relative to Valt. Valt is the alternating voltage source applied to make current measurements, which when summed compensate for background offset currents. It s...
by Vince W
July 14th, 2011, 10:23 am
Forum: Series 2700 Multimeter/Data Aquisition/Switch System
Topic: 2701 sync issues when measuring temperature
Replies: 1
Views: 9410

Re: 2701 sync issues when measuring temperature

Hello, I believe that the unpredictable timing between the start of your two 2701 scans is because there is not a guaranteed response of the Ethernet interface. The software commands to start the scans of your two 2701 instruments are probably sent pretty close to each other in time by LabView, but ...

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