Hello,
I am having a little trouble getting some clear information with regards to the importance of pressure sensor surface area.
Say I am using a pressure sensor with a 30mm flush diaphragm, mounted so that its sensing head is flush with the inner diameter of a pipe, used to move a non...
Good morning gentlemen,
Dan - I like the idea of the test and it is something I will be trying.
I do think that it will be necessary to provide external CJC as literally no where on this manual it suggests that internal CJC is already provided (without the additional accessory that is).
I...
Daw2 - I just remembered a previous comment of yours regarding the supply of power to the PT100,
I assume this HAS to come from the analogue module?
Jericho.
Good afternoon folks
Thank you again for taking the time to leave responses.
I have managed to come across what i believe is the official manual for how to operate this analogue card it states quite clearly that a PT100 probe can be used in the first channel of the module to act as the cold...
Thank you for the responses,
AK2DM - I saw the support for CJC, sorry I guess I did not make that clear. So the idea is to connect a PT100 to it to provide the CJC.
Danw2 - do you think that any PT100 would do? On the bottom of page five it says:
"The CJC sensor detection input is connected to...
Hi Danw2,
Thank you for the response.
We are actually using a fairly expensive PLC + HMI system (Modicon M340 + Magelis XPT GTO4310) and to tell you the truth I was surprised to see there was not built in CJC for the analogue input cards the Thermocouples are connected to.
There is an...
Thank you for the prompt reply.
Just to confirm, the cold end of the thermocouple can be wired to the inside a box that fluctuates in temperature, as long as the fluctuation in temperature is measured by a RTD.
Thanks.
Jericho
Hello,
I am working with control instrumentation for the first time and I am looking into Type K Thermocouples.
My question is this, I understand the need for cold junction compensation - am I correct in assuming that I can use a RTD to measure to measure the temperature at the cold reference...
