R
Hello all,
I am in no way an engineer or anyone even close to that, but I am in dire need of some expert assistance.
I have inherited an Ingersoll Rand screw compressor, and I am connecting it to run my shop. I have determined that the one air pressure transducer on the machine is bad (will not read any pressure on the digital display unit). Since the original replacement part is not only very scarce but also ridiculous money, I need to find a suitable replacement.
I have contacted a couple manufacturers but cannot seem to find the right one.
Here is what I know:
The transducer is a small sealed unit with 1/8" NPT connection and a fixed wire lead.
There are four wires coming out of it, red, black, green and white.
When I test for voltage between the red and black (at the control panel board Connection), I get 5 volts DC.
When I test between either the red and white or black and white, I get 2.45xxxx volts dc; and same for the red and green or black and green.
If I test between the white and green, I see nothing.
If I place a jumper wire between the black and white (or green), I can see a reading of 17psi on the display, and it tricks the compressor into thinking there is pressure and allows it to run.
I have found that the pressure range is 0-225 psi.
No matter how hard I search, it appears that no one has any 4 wire pressure transducers on the market. Does anyone know of any other alternative to replace this factory original? Could I make a 3 wire work? Is there anyway to verify what the output of this transducer should be with it not working? I know there are all sorts of different outputs, so I need to be sure I'm getting the correct one.
Any and all help would be super appreciated!
Thank you,
Rob
I am in no way an engineer or anyone even close to that, but I am in dire need of some expert assistance.
I have inherited an Ingersoll Rand screw compressor, and I am connecting it to run my shop. I have determined that the one air pressure transducer on the machine is bad (will not read any pressure on the digital display unit). Since the original replacement part is not only very scarce but also ridiculous money, I need to find a suitable replacement.
I have contacted a couple manufacturers but cannot seem to find the right one.
Here is what I know:
The transducer is a small sealed unit with 1/8" NPT connection and a fixed wire lead.
There are four wires coming out of it, red, black, green and white.
When I test for voltage between the red and black (at the control panel board Connection), I get 5 volts DC.
When I test between either the red and white or black and white, I get 2.45xxxx volts dc; and same for the red and green or black and green.
If I test between the white and green, I see nothing.
If I place a jumper wire between the black and white (or green), I can see a reading of 17psi on the display, and it tricks the compressor into thinking there is pressure and allows it to run.
I have found that the pressure range is 0-225 psi.
No matter how hard I search, it appears that no one has any 4 wire pressure transducers on the market. Does anyone know of any other alternative to replace this factory original? Could I make a 3 wire work? Is there anyway to verify what the output of this transducer should be with it not working? I know there are all sorts of different outputs, so I need to be sure I'm getting the correct one.
Any and all help would be super appreciated!
Thank you,
Rob