Mark03Ram

Thinking of bringing water to a boil and putting the prob in the water with a temp gauge, figure it should be the same right??

I put the recon xzt in the truck with the prob pre turbo near the number 3 cylinder and it seems to show low. Want to make sure its right before I start adding more power.

82NDSNPR

thats a good one i guess you can put it in the oven with a meat gauge and see how close they are that way the temp is even threw out the oven as apposed to the water but should work in therie right?

bob4x4

I use an infrared hand held and compare temps @ idle..........close enough for government work

Bob

CamperAndy

You need a millivolt source to calibrate them correctly. Not that hard to make either. Google millivolt source and you will find a lot of options.

ollie32

Hand held infared thermo, scan the pipe where the probe is. I know there is a calibration adjustment on the commander.

Goober

Dont u just love them infared units. Freaken awsome. Although each time i pull it out my dog goes nuts when he sees the lazer beams.

jrussell

Testing a probe at 200-300* won't tell you if the calibration is off at 1200-1300*. It could be accurate at the lower temps and off at the higher temps.

Like Andy said, you have to use voltage to properly test the calibration.

Pooter

What temp readings are you seeing?


I have one on top, and one in the "collector" portion, and I can see a difference of 50-100* under load...
Top is 1-3, bottom is 4-6(which runs hotter)

jrussell

So you see hotter temps in the collector (monitoring 4-6)? On Diesel Manors website (and I emailed them to clarify it wasn't a typo) it says you will see hotter temps on top of the manifold monitoring 1-3, even though #6 usually runs the hottest. Something to do with the probes distance from the cylinder. Are you seeing the opposite? What kind of pyros are those probes hooked to?

XLR8R

A Type K thermocouple - such as used with a digital pyrometer (not sure what the Recon uses) - is usually quite reliable and exhibits very little creep as time passes.

For NIST standards, annual calibration is required, but otherwise, if the 'couple is accurate within a few degrees of freezing, ambient or boiling - it'll be fine for the higher EGT range... unless you REALLY need to know if it's 1245*F or 1260*F

When using multiple non-identical probes, their construction as well as placement and installation will affect their "accuracy" far more than any calibration issues!

82NDSNPR

so is this a good location for the probe

231jasons

My Edge probe is about 50-80 deg diff than my BD X-Mon. I questioned Edge about and they said "ours are calibrated by a very exspensive machine". The attitude i got was; how dare you question us.

With both of my probes out of the manifold, i got a 38 deg hotter reading on the edge compared to the BD. Useing a handheld infared temp probe on the two probes i got the same reading within 1/2.

Edge told me that these thermocouplers were calibrated above 500 degrees and are not supposed to be that accurate at lower temps. They had an excuse for everything.

Pooter

At idle(cooled down/just started) 1-3(Hooked up to the Edge/Attitude) reads 50*~ hotter than the EGT guage(4-6, on the pillar), and under WOT the EGT guage reads 50-100* more than the Attitude probe...

(Edge on 3)

Typically its closer, and almost dead even when cruising, but going full out, or up a steep grade, ill see that difference...

jrussell

Thanks...that's killer info man!

Pooter

Not a problem, and I didnt think it would be that much of a difference between the front/rear 3 until I saw it...
Maybe the probes arent calibrated correctly,or because of the different locations(closer to the cylinders vs further away) or some other factor, but just thought id post what im seeing, heck maybe mine are wacked