Engine/Transmission (1998.5 - 2002) Using single pyrometer for gauge and juice w/attitude

[AGROM]

Has anyone ever used one pyrometer probe to provide a reading on gauge and juice w/attitude?

 

[cArNiVaLwOrKeR]

Do you mean, Together?



JoeLee

 

[Diesel Dummie]

I do it on my adrenaline, they are with in 100* of each other!!

DD

 

[wlowe]

I run an Isspro EGT guage along with the attitude. I have them both connected to the probe that came with the J/A. To determine accuracy I experimented using different configurations of probes/guages. I found that the Isspro is fairly accurate using the Attitude probe but there is a difference in readings between the Isspro and Attitude. At 300 degrees they read the same. At 1,000 degrees the Isspro reads 80 degrees higher than the attitude. I just set the parameters on the Attitude, (alerts, fuel down), based on the Isspro readings.

 

[Jason Griebel]

did it with mine worked good

 

[KLockliear]

This is not a good idea. Do a search on the topic, but the bottom line is that a thermocouple puts out a very small voltage (<50mv). Each device connected to it has a little resistance to add, effectively reducing the signal to the gauge/device. When your resolution is based on very small voltages, ANY change will make a marked difference in the reading. Each device (gauge or Attitude) has a built in thermocouple amplifier, which will amplify this voltage and therefore, amplify the difference between real temp and displayed temp based on those changes.



IE, the difference between a reading of 1300*F vs. 1400*F is only 2. 3mv! Here's the chart (mv to temp): http://www.omega.com/temperature/Z/pdf/z218-220.pdf

 

[AGROM]

Thanks, appreciate all the inputs. I'm going to do a little bit more research on the subject.