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Process Calibrator Reccomendations?

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Tech_Monkey:
Before I ask my question....does anyone else here experience how hard it is to express to management underlying root cause electrical issues??   |O |O

I need a good process calibrator for some heat controllers that use J and K type thermocouples.  I like the fluke multipurpose (726) but its 5 grand US.   Can anyone make a suggestion on something thats as good without the price tag?  cant spend that much on fluke for the aforementioned management problems.... |O

TimFox:
Do you own a sufficiently well-calibrated and sensitive voltmeter?
The thermal EMFs for J and K thermocouples are tabulated.
You need to buy a simple ice-point reference, and a cheap one can be made with a styrofoam cup, distilled water, and small ice cubes.
My old Keithley thermocouple meter had details for that junction construction.
This manual is for a similar instrument, and has ice junction construction in section 4.2.
https://assets.omega.com/manuals/M0618.pdf
The reason for the ice junction is to connect your two metals to two copper wires to avoid thermal errors at the voltmeter.

Tech_Monkey:
I use a fluke 289  for all my voltage metering issues.  im not trying to test the thermocouples accuracy, i'm trying to test the controllers calibration.   I dont think I follow how your advice helps me.

Tomorokoshi:
1. By "test the controllers calibration" do you mean what the controller reads from the thermocouple? Its 4-20mA output? Something else? Those terms have both general definitions and very specific definitions depending on the industry they are being used in.

2. Google "process calibrator" and a few things show up. I took a quick look at the Uni-T UT725. Perhaps something like that is acceptable. Note: you get what you pay for with this kind of equipment.

However, I suspect the real problem, as you state, is how to talk to Management about this kind of thing. A few questions:

3. Is the organization financially stressed?

4. What kind of organization is it? Sales? Service? Manufacturing? Engineering? Other?

5. Is mechanical engineering the educational background of Management?

6. Is accounting the educational background of Management?

J-R:
I picked up the Ronan X88 some months back and it's an interesting older device that may be an option for you.  You may have to search and wait a bit to find one for a reasonable price.
https://ronan.com/wp-content/uploads/2019/09/X88_brochure.pdf
https://www.ronansystems.com/assets/docs/X88_IOM.pdf

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