problem regarding to SRS lock in amplifier labview programme

[jkumar.1986@yahoo.com]

Dear,    i have a labview programme for SRS 830 lock in amplifier and problem is that the output is depends on the sensitivity .. as we change the sensitivity from 500mv to 1v then output dramaticaly changes . auto gain function is not working . so i am wonder that on what sensitivity the output is correct. please help me to overcome this problem by starting the auto gain function. i am attaching that vi. when i execute vi at autogain then it shows some error and stop. 

[jkumar.1986@yahoo.com]

please help me to set the sensitivity at auto gain in above vi.programme.

[jkumar.1986@yahoo.com]

If set a specific Sensitivity, say 10uV/pA, the example program works fine;If set the Sensitivity to "Autogain", an error message occurs

[jkumar.1986@yahoo.com]

If set a specific Sensitivity, say 10uV/pA, the example program works fine;If set the Sensitivity to "Autogain", an error message occurs

[Dennis_Knutson]

I can't help specifically with the SRS instrument but if you are getting an error, you have to post details on it - error number, message, etc.

[jkumar.1986@yahoo.com]

error -1073807339 occured at stanford 830 and sometime it shows error " parameters are out of range."

[billko]

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jkumar.1986@yahoo.com wrote:

error -1073807339 occured at stanford 830 and sometime it shows error " parameters are out of range."

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I can't see your VI, but it sounds a lot to me like you have issues with basic communication.

[Dennis_Knutson]

I don't know what would be causing the timeout. For the parameter error, that sounds like an error being returned by the instrument and you would need to check your parameter values with what are actually available. It appears the driver supports both an 810 and an 830 and each have different allowable parameters.

[jkumar.1986@yahoo.com]

if i change the sensitivity at 1 volt ,500 mv ...etc. then its work fine. as soon as i change the sensitivity at autogain it shows this error.

[Dennis_Knutson · Accepted solution]

'this error' means what? Timeout or parameter error? If it's a parameter error, then you really have to check the manual to see if that is supported.