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Kelvin Measurements with 2425-C

Models 2400, 2401, 2410, 2420, 2425, 2430, 2440, 6430
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mpiggie
Posts: 2
Joined: November 23rd, 2010, 12:14 am
Country: Australia

Kelvin Measurements with 2425-C

Post by mpiggie » November 23rd, 2010, 12:19 am

I'm currently using a 2425-C and am looking to implement a contact check test. I am familiar with the 2600 family SMUs where you can read the rhi and rlo numbers (resistance at the high and low lead), but cannot find such commands on the 2400 user manuals. I'm looking for a separate resistance number for both the high and low lead. I'm using SCPI programming for this. Any help would be greatly appreciated.

Gabriele V
Keithley Applications
Keithley Applications
Posts: 38
Joined: November 2nd, 2010, 6:51 am
Country: Italy

Re: Kelvin Measurements with 2425-C

Post by Gabriele V » November 23rd, 2010, 1:57 am

Hello mpiggie,

if you need to perform Contact Check, a programming example is the following:

*RST
:SYST:CCH ON
:SYST:CCH:RES 2
:SYST:RSEN ON
:CALC2:LIM4:STAT ON
:CALC2:LIM4:SOUR2 15
*:SENS:FUNC "RES"
:TRIG:SEQ2:SOUR CCH
:TRIG:SEQ2:TOUT 2
:OUTP ON
:INIT
:CALC2:LIM4:FAIL?

you can find details on how to use this feature in the user manual appendix F.
this is the link:

http://www.keithley.com/support/data?asset=887

Regards
Gabriele

Gabriele Vittori
Application Engineer
Keithley Instruments (Italy)

mpiggie
Posts: 2
Joined: November 23rd, 2010, 12:14 am
Country: Australia

Re: Kelvin Measurements with 2425-C

Post by mpiggie » November 23rd, 2010, 5:53 am

Hello Gabriele,

I have already tried using the attached code but it does not return me the resistance values for the high and low lead, which is what I'm interested in. Using the 2600 SMUs, you could measure the rhi and rlo, which would give me the high and low lead resistance, which is what I'm looking for.

In other words, I'm not looking for an integrated contact check test, but more of a sequence which would return me a pair of resistance numbers for each terminal, then I will handle the numbers accordingly. Looking forward to hearing back from you.

Gabriele V
Keithley Applications
Keithley Applications
Posts: 38
Joined: November 2nd, 2010, 6:51 am
Country: Italy

Re: Kelvin Measurements with 2425-C

Post by Gabriele V » November 29th, 2010, 5:59 am

Hello mpiggie,

unfortunately this option is not available on the 2400 series.


Regards
Gabriele

Gabriele Vittori
Application Engineer
Keithley Instruments (Italy)

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