Tektronix Technical Forums are maintained by community involvement. Feel free to post questions or respond to questions by other members. Should you require a time-sensitive answer, please contact your local Tektronix support center here.

Zero Correct or Reference value on Keithley 6517B

6514, 6517 Support
Post Reply
ivancip
Posts: 2
Joined: August 4th, 2011, 12:58 pm
Country: Mexico

Zero Correct or Reference value on Keithley 6517B

Post by ivancip » February 13th, 2012, 2:42 pm

Hi.

I'm using a keithley 6517B electrometer, with an interface with Labview, to measure a current through a resistance.

My problem is when I want to use the zero correct.
I'm using the following SCPI commands:

*RST
:CONF:CURR:DC;
:FORM:ELEM READ,TST;
:SYST:TST:Type REL;
:STAT:MEAS:PTR 32767;NTR 0;ENAB 32;
:SYST:TST:REL:RES;
:CALC:STAT OFF;
:SYST:LSYN:STAT OFF;
:SYST:ZCH ON;
:CURR:RANG 2e-12;
:SYST:ZCOR:ACQ; ******
:SYST:ZCOR ON;
:CURR:RANG:AUTO ON;
:SYST:ZCH OFF;

Without this command :SYST:ZCOR:ACQ; the program apear to be functional. Whith this command, the electrometer give me a error -200 (Execute error).

I have suggested that use the Reference value.
Any suggestions?
Thanks

Vince W
Keithley Applications
Keithley Applications
Posts: 108
Joined: September 22nd, 2010, 12:27 pm
Country: United States

Re: Zero Correct or Reference value on Keithley 6517B

Post by Vince W » February 21st, 2012, 1:45 pm

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 sending repeated "*OPC?" queries until the response is "1" after each command, and only proceeding with the next command once complete.

You could create an "operation_complete" subroutine that does this and call it after sending each command.

Vince W
Image
A Greater Measure of Confidence

Post Reply

Return to “Electrometers”

Who is online

Users browsing this forum: No registered users and 0 guests