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How to wire pressure sensor PR-35XHTT with ni-9205

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I'm using ni-9205 to aquaire the out signal. I connected pin 1 and pin 3 to negative and positive, respectively to the power supply 23 (V), and I connected pin 2 to channale 0 of the ni-9205 and the same negative terminal from the power supply to COM of the ni-9205 and I used differential configuration, but I got not logic voltage readings (e.g. -0.4)!

Any suggestion to solve this issue?

The photos of my devices are shown here

alhabeeb_0-1721997439230.jpeg

 

alhabeeb_1-1721997439232.jpeg

 

 

alhabeeb_3-1721997439229.jpeg

 

 

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Message 1 of 8
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If you are using DIFF terminal mode, the GND pin should be connected to AI8

ZYOng_0-1722041089333.png

Reference: NI-9205 Getting Started

 

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Control Lead | Intelline Inc
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Message 2 of 8
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How about the COM?

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Message 3 of 8
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OK. I tried (RES) connecting as shown in picture 

 
 

RES connecting .jpg

 

but I got 0.00771544 (v) as shown in picture below! It is supposed to be 0.3125 (v) as long as I measure the ambient pressure which 1 (bar)

RES labview.jpg

Any suggestion to solve this issue?

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Message 4 of 8
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Please cross check the voltage across pin2 and pin1 using a handheld multimeter to ensure the pressure sensor is working.

Santhosh
Soliton Technologies

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Message 5 of 8
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I think it is not good to measure the ambient pressure.

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Solution
Accepted by topic author alhabeeb

It is possible, best to test with a pressure chamber or at least compressed air blowing on the sensor.

Santhosh
Soliton Technologies

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Solution
Accepted by topic author alhabeeb

Yes, it works with a water pump.

Thanks

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