D-120 issue

[robit]

Hi to all.
On my D-120 I noticed that on EGT three of four sensors alternate showing the EGT temperature and Yellow SPN, and that is what bother me. Is something I did wrong in setting or the unit is broken.Thanks for the answer.
Robert

 

[dynonsupport]

That means you have a span alarm configured and the unit is warning you that the EGT's are far apart from one another in temperature.