Type K Thermocouple Egt To Display

[redbopeep]

I've got an Exhaust Gas Temperature (EGT) sensor for our engine but haven't been able to use it yet. I'm having a hard time finding a spot in the chart house to put an analog instrument for it so thought I'd feed it into our CruzPro MaxVu 110. The MaxVu is a multi-display that takes in all kinds of common analog signals as well as NMEA 0183 and displays them in any custom configuration that you wish (up to 5 signals per screen that is). I can place an analog instrument in the engine room but would like to be able to check this out while underway without running down there! Though I've just emailed CruzPro about this...I wonder if anyone here has experience using a type K thermocouple.

The issue is that the CruzPro allows me to input a resistance curve for custom instrumentation--I assume CruzPro is using a voltage divider, btw for display...however the type K thermocouples (which measure high temperature) send voltage as function of temperature rather than resistance as function of temperature. Scratching my head here on this and I haven't really gotten good comm with CruzPro in the past on much more basic things so....Anyone??? know how to deal with this??? Thanks!

[MMNETSEA]

Brenda,

This site any use? HERE

[redbopeep]

Originally Posted by MMNETSEA

Brenda,

This site any use? HERE

Actually, that's the place we purchased the TC from! LOL

Since making my posting, I considered using a voltage amplifier (common, cheap and easy to come by for the Type K TC). This would have allowed us to monitor a voltage on the CruzPro and then I'd have to keep a table at hand to know the temperature vs voltage. It is a linear curve, so would work. In the near term, we put a Vohm meter on the leads and the T vs mV table at the console.

In the longer term...we'll likely put a CruzPro product on it which converts the analog signal to NMEA0183 so it will be easier to monitor via the CruzPro MaxVu. Only problem is that the CruzPro MaxVu only has a limited number of 0183 inputs whereas it has lots and lots of analog inputs available to use. Always something.