Lionel wins! The power source was inadequate. I powered it off the main 12v power bus in the equipment setup, and tied the blue 0v line to the ground. This cleared up most of the issue.
the only remaining problem is that one of the sensor amps has poor accuracy on it's 4-20 mA output. It is...
Ok that makes sense. I'm new to all this so I appreciate your help. This morning I received some photos of the other setup that is out in AZ, looks like they were not powering it off the Signal Conditioner. I have a little re-wiring to do, hopefully that clears it up...
Ok now here's where it gets weird... and possibly a bit closer to solving this issue.
The sensor amps and signal conditioners sit next to each other (and 2 thermocouple amps) on a DIN rail. I noticed that when I unplugged sensor 1's signal conditioner output, sensor 2's reading in the VBOX...
I'm now wondering if I have it wired wrong somehow?
This is the sensor diagram
Sig + Pink
Sig - Blue
V+ Brown
And this is the signal conditioner diagram:
I have it wired as follows:
9 Blue
10 Brown
11 Pink
I've played around with it a bit, but with no luck...
Lionel, fair point. I didn't think of that.
Mongrel, if these are pulsed, we have a real problem. The users manual states it should have a linear 4-20 mA output.
IRstuff, gotcha. I only have sensor data output for a few points, but the mA output is dead-on for those points...
So when I manually input currents from 4-20 mA (using a 24v source and a 10k potentiometer) the readings in the VBOX look perfect.
So the temperature sensor and the signal conditioner both seem to work just fine independently, but when I connect them, it doesn't work...
I'm not sure where else to post this, so I'll post it here.
I am putting together a test kit that will go in a vehicle for on track testing and have run into some issues. A former co-worker put together a nearly identical kit some years ago, and it's still in use. I assume it works, but have...
PontiackJack, not sure why you have to try to eliminate drone via trial and error. The method shown above provides a calculation for building a 1/4 wave resonator to target and cancel drone.
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I could get so much done if I didn't have to go to work
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I was not able to find any pre made torque boxes, so I made my own.
The process can be seen in the links below.
To summarize, I'll post an excerpt from the second blog post:
"Did the torque boxes change the natural (or resonant) frequency of the...
I think replacing parts due to a mis-fueling was massive overkill. I ran E85 in an old Ford Ranger (I was able to adjust the ECU) for years and never suffered any ill effects. I'd bet hundreds of dollars that a 2016 model year vehicle would suffer no noticeable corrosion...
Ahhh OK. I had not heard that terminology before. Yes, it's definitely a single mass flywheel.
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I could get so much done if I didn't have to go to work
Panther, that's an ingenious way to check. I suppose I could make my timing light do that for me.
Bugbart, I have not yet had time to attempt to fix it. I'm not sure what you mean by SMF vs DMF... but it has a 5 speed manual transmission. I'm sure a column damper would help, but I'm not...
Transmission Mount
Connection to Front Subframe
Underbody Prior to SFCs and Transmission Mount
Location of SFCs
As you can see, the SFCs are well behind the engine compartment, so I don't think they are contributing a lot to the stiffness of the firewall area. They are stiffening up the...
Hey Pontiacjack,
I think you hit on what I'm suspecting right now. I'm thinking that the interface between the front subframe and the rockers is really floppy. All of the forces and vibrations on the front subframes (including motor mounts and all the vibrations that go along with that) must go...
The original is internally balanced (no weights on the flywheel) and I can't verify, but I don't recall seeing any weights on the aluminum flywheel. I'm pretty certain it as a zero-balance unit.
So for the sake of argument, lets assume that an improper flywheel is not the issue...
I need some help understanding an NVH issue. I swapped an older inline 4 (Ford 2300 turbo, no balance shafts) into a 1962 Ford Falcon. This engine was originally in a Ford Ranger, and while it was never a "smooth" engine, it wasn't objectionable either.
When I put it into the Falcon, I...
