Need more info for the ag34405 DMM VI's

[newbieLBW]

Hi !

I'm working with the Agilent 34405a multimeter and made a little VI for data-logging. The problem is, I want to choose between 4.5 & 5.5 resolution and the is no litterature about it. I'm using the NI drivers and VI's made for this application. There is a VI named "Configure measurement.vi" in which you could perhaps select the resolution (as the default value is 0.0001, that would be for 5.5 digits I think). I already tried to change the value from 0.0001 to 0.001 but the instrument still use the 5.5 digit measurement method.

Does somebody also know if there is more documentation as the contextual help of each VI made for the ag34405a DMM (there are more or less only default values explained, but I would need more...)?

I've attached my VI if this could help to solve this issue. Am working with LabView 8.20.

In advance, thanks for your help !

Yves

[nyc_(is_out_of_here)]

I would suggest downloading the manual from Agilent.com

[Kamran S.]

Yves,

One of the things that is great about instrument drivers is the context help on each of the controls. You can turn the context help on with Ctrl+H and then hover you mouse cursor over the control. If you open "Configure Measurement.vi" and look at the help for the absolute resolution control you'll see a good description that includes:
Notes:
(1) The instrument driver ignores this parameter if the Range parameter is set to AG34405A_VAL_AUTO_RANGE_ON (-1) .

If you look at the help of the Range parameter you'll find see a similar discription with details and the following:
Defined Values:
AG34405A_VAL_AUTO_RANGE_OFF (-2)   (-2.0)  - Auto-Range Off
AG34405A_VAL_AUTO_RANGE_ON (-1)    (-1.0)  - Auto-Range On

Based on this, can you try setting the auto-range to -2 and specifying the absoulte resolution?
Regards,
Kamran

[newbieLBW]

Hi ! Thanks for the advices, I haven't noticed that the contextual menu displays information about the nodes of these VIs....Am really ashamed lol !

If somebody has interest in it, here is the VI I made to datalog with the ag34405a.

Best regards,

Yves Kosmalla