CHT K vs J

[vortex]

Hi guys
This is my first post. I am installing a EFIS D100 and aD10 on a HKS engine. I just found out that HKS uses CHT type K while the EMS says type J for CHT, will I need to reconfigurate something to have an exact reading? Or will I have to go through the GP wires?
Pierre

 

[dynonsupport]

There's only one GP Thermocouple input on the 37 pin connector that can be used for a generalized temperature. On the D25 connector (the EGT/CHT connector), 6 of the inputs are always CHT and always type J thermocouples. The other 6 inputs are always EGTs and type K inputs, so there aren't any obviously great options. Is there a reason you can't use the bayonet type J thermocouples that we sell in the Lycoming packages? Is there some engine computer that requires the type K CHTs?

 

[vortex]

The engine computer requires type K CHT's. So, what are my options?

 

[dynonsupport]

It's not an ideal solution, but could you potentially use ring terminal type J CHTs to feed the Dynon, keeping your type K's intact? We sell them in a single size for Jabiru engines, but other sizes are available from Spruce and other aviation suppliers.

 

[vortex]

Isn't there a way to get that EMS to read K type thermocouples for CHT's?
Rings around the plugs is a bummer, especially that the probes are already in there.

 

[dynonsupport]

In SkyView, you can edit the sensor configuration file manually to allow this. But on the first generation EMS products, this is hard coded.