Can a guage and a module that both require EGT be hooked up to one probe or should i just drill twice?

I tried to search but couldn't find anything.

 

1 gauge per probe. Drill twice as it will throw off you readings if you use more than 2 gauges per probe.

 

All that I have read here and elsewhere say. . . separately

 

as long as the voltage is the same you can connect 2 to 1.

I ran my analog gauge and TST that way for a long time.

 

Ive got my tst and an analog gauge hookedu up the same way and they read the same!

 

My BD Cool Down Timer and Isspro gauge use the same probe.

Dan

 

My TST and an analog gauge are hooked up to the same probe. They stay within about 50* of each other. A while back, I had them separate. They still read within 50* of each other. It made no difference.

 

I have had my TST and Autometer guage on the same probe for almost 3 years. They both work great.

 

Increasing the resistance by piggybacking Type K 'couples should only effect NIST accuracy, as long as the junctions are proper.

No worries....

 

Too bad there is so much mis information on this type of subject.

There is no problem with running multiple devices from a single thermocouple but since you have answers going both ways on this thread you will need to look else where for confirmation.

For everything you ever wanted to know about Thermocouples try this web site. http://www.omega.com/thermocouples.html

 

Thanks Guys!

 

I've got my edge and my old pyro gauge hooked up to the same probe untill i can sell my pod and gauges. both read exactly the same temps

 

From the website
"Q. Can I split my one T/C signal to
two separate instruments?
A. No. The T/C signal is a very lowlevel
millivolt signal, and should
only be connected to one device.
Splitting to two devices may result
in bad readings or loss of signal.
The solution is to use a “dual” T/C
probe, or convert one T/C output to
a 4-20 mA signal by using a
transmitter or signal conditioner;
then the new signal can be sent to
more than one instrument."

However, Many of us have found that this works just fine if applied correctly.

 

I almost feel bad about posting the Omega site as a place to answer the question as you have found even the experts can be ambiguous. The use of the word "may" is not very definitive. Had the conditions that would have caused the thermocouple to read incorrectly been posted along with the statement it would have been better. Even one device connected to a thermocouple may read incorrectly if the wrong interconnect wire or connectors is used. So it is up to you which way you go. I will continue to use one thermocouple to indicate to both my Edge and Isspro gauge.