Problem with Newport's 1830-C Optical Power Meter and Labview.

[pradeep_mtu]

Hi Proulx,

Yes, on scaning in MAX it shows the power meter and when I click on "Communicate with Instrument" it opens a small window with option of "Send String"  *IDN?, on pressing the Query button I don't see anything (its blank and also there is no error message) in "String Received" -------(blank). In the same window on right corner "Status" changes to END (get's highlited). One other important thing I noted is that the GPIB port of my PC is shared by a Laser and 1830-C power meter, and power meter works only when the laser power is on.Hope this information will work to find the solution of the problem. Please let me know if you need to know anything else.

regards

pradeep

[O_Proulx]

Hello Ryan,

I do not think that your instrument supports the *IDN? command.  Basically, if you send it *IDN?, it will not respond anything because it does not know what that command means.  Let's try writting "D?" instead and see if your instrument responds with the proper information.

Have a great day.

[SolarG]

Is anyone using this driver for the powermeter with NIR detectors?

For me it works fine up to 999nm but above that it returns either a command or a parameter error.

I assume that there is a problem with the 4th digit, but how can this be fixed in the driver?

Any input would be helpful!

[nyc_(is_out_of_here)]

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@SolarG wrote:

how can this be fixed in the driver?

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What does the programming say and what is the driver doing?

[SolarG]

Hi nyc,

That's the weird thing; the programming does follow all steps normally without any errors, but the driver doesn't take any action..

I was thinking that it's an issue of the instrument not accepting the command but checked and the syntax is correct.

The instrument uses a serial polling for each command/query and I'm thinking if there could be a problem with the number of bits received?

SolarG

[nyc_(is_out_of_here)]

How about just using VISA interactive applet and sending the query thus eliminating all the overhead?

[SolarG]

Tried already without luck 😞

SolarG

[nyc_(is_out_of_here)]

Sounds to me like a call to Newport is in order.  It sounds like an error that they should be able to easily replicate.