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Old 09-17-2013, 12:49 PM   #1
jpavao1066
 
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Pyrometer problems

Hi I have an ev2 pyrometer and just recently I started having issues with it. The needle bounces up and down from 100 ish to whatever my current egts are at the time, but it won't hold the reading. It seems like if I unplug and replug it at the probe it works again, but shortly after it starts bouncing around, then eventually stays at 100. Does this sound like I need a new thermocouple? It only started this after I removed the head and reinstalled it (having to unplug the probe from the harness to do so) so I don't think it would be the gauge itself? Thanks
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Old 09-17-2013, 12:52 PM   #2
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Sounds like the plug is junk
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Old 09-17-2013, 12:52 PM   #3
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I would clean the contacts of the plug real good and put some dielectric grease inside the terminals before you plug it back together. Sounds like you are losing continuity in the circuit.

^^ also what he said.
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Old 09-17-2013, 01:07 PM   #4
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Ok thanks guys ill give that a shot
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Old 09-17-2013, 03:05 PM   #5
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mine did that and after i repl the guage and the probe i finally had to do the wire..
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Old 09-17-2013, 05:48 PM   #6
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http://www.isspro.com/TROUBLESHOOTIN...leshooting.pdf

Troubleshooting for the pyrometer. I had to use it recently as well.
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Old 10-02-2013, 07:48 PM   #7
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Sorry I missed this post, are you still having problems? The above advice was good, but if it didn't solve it then my next guess would be a broken connection inside the thermocouple probe (since moving the wires down there seemed to have temporarily cured it). Please let me know.

Regards,
Michael Pliska
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