I am looking to simulate fume hood using labview for checking my controllers..

[nitin0909]

I am looking to simulate fume hood using labview for checking my controllers.Has anyone done this before.Please let me know the list of NI hardware used for this purpose.

[Blokk]

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@nitin0909 wrote:

I am looking to simulate fume hood using labview for checking my controllers.Has anyone done this before.Please let me know the list of NI hardware used for this purpose.

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You should give more details about what you want to do.

What kind of simulation you want to do? What do you mean about "for checking my controllers"? What kind of controllers are you talking about?

edit: maybe you want to simulate the air flow characteristics, and the venting system operations?

I beleive people usually use industrial finite element software (fluid dynamics) for such purpose, like shown here: http://www.labdesignnews.com/articles/2013/12/lab-fume-hoods-high-heat-load-special-challenge-needs-...

One possible way, you can program your own simulation and use it via LabVIEW. There is even toolkit for parallel computing (like the NVIDIA CUDA) so you can do massive computational things with your video card in LabVIEW. All it depends on how deep you want to go into simulations...

[nitin0909]

Thanks Blokk,

Below are the details :

The goal:  Be able to simulate users operating hoods using programmatic overrides (not physically moving VSS or ZPS switch) from a tester’s computer and automated sequences as needed.

These are signals we need to simulate to our controller:

3 UI (0-10VDC) for:  Flow Command (Scaled), Sash Sensor, ZPS Status

DI (Optional):  Hibernation Mode

2 AO (0-10VDC): Flow Feedback, 3 State Alarm

DO (Dry contact):  Can be any of:  Power Loss Alarm, BMS Hibernation Command, Local Alarm.

Ideally, we would want a DAQ that could output above 10 VDC as we need a 10.5 VDC signal on the UI to indicate items such as Broken Sash. 

Hope above details help..

I went through the link you sent , it talks about fume hood.

Since , our application need just a simulated fume hood operations, it would be great if you can suggest any such work if already done.

[Blokk]

Ok, now I see what you want. I was on a wrong track 🙂

Well, I think in this situation is the best if you contact NI, they have the qualified engineers and programmers, so they can give you the best advice quick. Specially if you spend your money for NI hardware 🙂