K-Type Carb Air Temp Thermocouple

[pmerwood]

Hi all

I'm installing a Skyview HDX system in my aircraft which will replace an Electronics International (EI) G1 Graphic Engine Monitor.

My existing Carb Air Temp sensor is an EI supplied 610C-021 K-Type and I've connected this to EMS D37-23. However, I'm not sure how to map this thermocouple in the EMS Sensor Input Mapping screen and have not been able to find out much about the 610C-021 other than it's a K-Type. There's no sensor in the list of Sensors (see screen shot) that is an obvious K-Type thermocouple.

Is there someone out there with a bit more thermocouple knowledge than I who can help me select a sensor that will map correctly to the EI 610C-021?

Thanks.

Peter

 

[RVDan]

I believe the Dynon carb and temp sensors are RTD type, not thermocouples. The only inputs on the EMS for thermocouples are the CHT and EGT. Thermocouple inputs are unique to thermocouples. A thermocouple can not be used in a simple voltage detection input. I recommend you buy a carb sensor from Dynon. I think a type K thermocouple for carb temp is terribly inaccurate. These are typically for high temps in the range of the EGT’s.

 

[pmerwood]

I believe the Dynon carb and temp sensors are RTD type, not thermocouples. The only inputs on the EMS for thermocouples are the CHT and EGT. Thermocouple inputs are unique to thermocouples. A thermocouple can not be used in a simple voltage detection input. I recommend you buy a carb sensor from Dynon. I think a type K thermocouple for carb temp is terribly inaccurate. These are typically for high temps in the range of the EGT’s.

Thanks. I wondered if it would be easiest to buy the Dynon carb air temp sensor.

When planning my upgrade I saw on page 7-74 of the Skyview System Installation Guide that you can "... configure the SV-EMS-220 to monitor two J or K type thermocouples in addition to the twelve thermocouples available on the SV-EMS-220’s D25 connector". However, it doesn't give much information on how you map those. A a result of that I assumed I could use the EI 610C-021 K-Type thermocouple until I came to do it.

 

[Dynon]

They're on pins 27/28 and 36/37 on the D37. If you select them in the pin mapping, you'll be able to select J/K thermocouples for those pins, in addition to the ones on the D24...

 

[RVDan]

Well, guess I was wrong. I wonder if that was added along the way in SW updates.

 

[GaryRay]

They're on pins 27/28 and 36/37 on the D37. If you select them in the pin mapping, you'll be able to select J/K thermocouples for those pins, in addition to the ones on the D24...
View attachment 5768

I noticed that the flight logs record these values in degrees Centigrade while the normal CHT and EGT values are in degrees Fahrenheit.
I am monitoring a second combined EGT and CHT site for comparison. Is it possible to save the values as Fahrenheit to avoid the math????