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Agilent 34972A frequency measurement configuration using labview

Hello there.

I have a OMEGA FPR 303 Flux meter which counts pulses. I conect it to a agilent 34972A using a 34901A board. I know that the pulses are at a 10V range and i use the frequency measument. When  i configure the agilent using its front panel i manage to receive a right response, zero when the flux meter is still and some value when there is some flow. 

Although I can configure using its front panel I can not configure using labview. 

I tried several different programs but until now i wasn't able do this (yes, I am trying to solve this for 3 weeks already).

 

I can configure temperature, voltage, and even switching (using a 34903A board in the latter). But something happen when i try to send the configuration for frequency measurement to the datalogger. 

In the end i only receive background noise, which is the response for 100mV range (which is the auto configuration).

 

What i Ask here is: How can I use labview to get Frequency measuments using 34972A along with a 34901A board?

 

Here is the program I am using right now.flux.png

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Message 1 of 6
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LIke anything else with an HP/Agilent/Keysight  34970/34972.

 

  1.  Configure the instriment to take the measurment on the channels you want. 
  2.  Create a "scan list"
  3. "scan" the instrument to actually take the measurments.

You diagram only covers step 1 

 

You need to pass your stan list to these two VI's (Even if your scan list is just ONE channel)

scanlist.PNG

 

Then scan in instrument...

scane.PNG

 

 

 

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=== Engineer Ambiguously ===
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Message 2 of 6
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Here is a better picture of steps 1 and 2 but I am configuring for voltage, current (scaled shunt) and temperature, then setting up my scan list.

 

inite.PNG

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=== Engineer Ambiguously ===
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Message 3 of 6
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oK, I will try this and report back! 

Thank you so much. 

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Message 4 of 6
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Hello again, 

This is what i did, trying to follow your advice. 

FLUX2.png

 

I managed to obtain a good measurement with right range. When I try to run it for a longer period, however, I keep on receiving this error that i do not know whats the cause.

 

FLUX3.png

 

I would really appreciate if someone gave me a help on solving this

 

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Message 5 of 6
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First off the sequences are NOT needed, use the Error Cluster for flow control.

 

You should pause for a moment and have a look at some basic LabVIEW tutorials http://www.ni.com/getting-started/labview-basics/environment

 

 

As for the error I don't think you need to set a scan interval, or just set it to 0.00.

 

I have attached my 34970 scan VI you can use. It's basically the example from the Agilent VI's with a few modifications to make it more usable.

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=== Engineer Ambiguously ===
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Message 6 of 6
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