Wiring of 3-wire voltage pressure transducer to NI-9207 module

[Hammerschmidt]

Hi,

I recently bought the NI-9207 module and want to read pressure from a 3-wire pressure transducer (Keller AG, model: PR 21 Y). The "Operating Manual and Specifications"provided by NI for the NI-9207 module is rather confusing and don't help me with the question of how to wire the pressure transducer plus the external power supply correctly.

My pressure transducer has a 0-10V output signal and needs 13-32 VDC power supply.

The wires coming from the pressure transducer are:

1 (white) = GND

2 (green) = +OUT

3 (brown) = +Vcc

From the external power supply I have 2 wires coming out:

white = +

black = -

Therefore I have 5 wires in total to connect to the NI 9207 module. According to the pin assignment of the manual, I have the following pins (which are important to me):

AIx+ ..... Each voltage channel has a + and - pin

AIx- ..... Each voltage channel has a + and - pin

COM

VSup

I don't know how to connect everything correctly, especially because my pressure transducer has only one output cable, but the NI-9207 module has a + and a - pin for each currernt input.

I attached the NI-9207 manual for reference.

Thank you very much for any help in advance!!

Regards,

Niki

[SteveD123]

I am not going to read the manual for the 9207, nor am I going to google for the transducer.

I would guess:

from the pressure transducer:

1 (white) = GND     goes to PSU -ve and AI0-

2 (green) = +OUT   goes to                    AI0+ only

3 (brown) = +Vcc   goes to PSU +ve only

Connect a multimeter on volts setting instead of the 9207 AI0- and AI0+ to confirm operation.

But I'm afraid to say that if you are asking instrumentation questions this basic, then a copy of "The Art Of Electronics" by Howeritz & Hill would be a good investment.