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I guess it depends on the complexity of the pyrometer and what the intention is. Is the pyrometer a contact or a non-contact single point device? Or is it a thermal imaging device/system? What is it supposed to do? Control oven temp? Monitor parts for zone of acceptable temperatures?

Neutral extension leads (as described in "Temperature Measurement", 1999, CRC Press) require that the transition point from T/C wire to 'neutral' copper wire be the CJ measurement point and that the CJ temperature must be known/measured and somehow supplied to the instrument for CJ compensation...

For example, what reading do you expect? As examples, what readings are you getting that do appear correct? What is the rate of change that does not appear to be correct? 10% of scale per second?

I hope not many, but I have seen it. If by "neutral extension wires" you mean that connection from the thermocouple to the analog input is not thermocouple extension wire, but copper wire, then 1) if a thermocouple transmitter is used and connected with thermocouple wire to its input...

If the readings are always low, then the reference level point and the bottom level points are suspect. If your zero level is configured correctly, then a long shot is speed of sound effects: temperature or vapor composition/density. But I think this is a setup/configuration issue. Is the...

It depends on whether you have one remote seal on an open tank or two remote seals on a closed tank.

It's Ohms Law. To drive the same current through greater resistance requires a higher voltage: With a loop load resistance of zero, the 'internal resistance' of the transmitter circuitry is R = E/I, R = 11/0.023 = 478 ohms (0.023A = 23mA, NAMUR upscale failure mode) Add 230 ohms...

If you have two remote seals, one at the bottom with another one at the top, then you can move the transmitter 'anywhere', below or above the datum and the LRV and URV do not change (assuming equal length capillaries). If you have only the one remote seal at the bottom, then any deviation...

Theoretically, the fluid in the capillary should transmit the pressure the same as tubing. But there are practical considerations. You haven't mentioned what you have in the tank. The small ID of capillary is much more blockable by sludge than the larger ID of tubing. The people who...

In the US, those are known as 1/8 DIN panel meters which designed to fit in the same panel cutout as you have. But the exterior bezel sizes vary depending on the vendor. There are numerous vendors, so you'll just have to check out whose bezel size is the best replacement fit for your panel...

The vendor assertions about minimum voltage are indeed correct. What you've missed is the minimum resistance requirement. It isn't up to the HART Foundation spec to require a minimum loop voltage because the minimum voltage required is a function of the device, dependent on its circuitry, and...

Just because the previous posts are a decade old, does not invalidate them. Same situation today as back then. Try reading the other posts on this thread. They're all saying the same thing, in summary, "For accuracy, count pulses." Analog totalizing can have serious issues, as...

A 5°C error (maybe greater) is possible with some handheld digital thermocouple thermometers because of where and how the cold junction measurement is sensed. When the CJ sensor is buried under the plastic housing and does not really reflect the terminal temperature, CJ error can be...

Assuming your software actually talks through a serial port, you need to check - Windows' Device Manager (under ports) to see which COM port the USB adapter installed on. Then make sure that the software connects via that COM port. - USB adapters need a driver. Did one install? Do...

It's not a problem if one is clairvoyant, but I'm not. Some MOV's use 4-20mA input. Some provide 4-20mA output that follows feedback position. Some still have slidewire feedback power? 24Vdc? 24Vac? AC Voltage? Some have position switches The one I saw had about 20 terminals...

A major American manufacturer or two cannot provide wiring diagrams without the device's serial number. I ran into this a year ago on a start-up. I got stuck waiting for the MOV to get wired. It isn't clear what happened to the original wiring diagram, but there was no diagram under the...

Thermocouple extension cable is required because it completes the measurement, which is the EMF generated across entire thermal gradient from the 'hot' end all the way to the 'cold' end. The 'cold' end temperature is measured as 'cold junction compensation' and its value is added to the...

If the information is available anywhere, it's probably in the S9000 Communications reference manual, downloadable here: http://downloads.applied-automation.com/sam/honeywell/s9000/index.html (remove any space characters that the forum might insert)

Four things are needed for HART communication: 1) a HART enabled transmitter 2) a DC power supply 3) a minimum of 230 ohms of resistance 4) HART communicator (with good batteries) or a HART modem/PC/software If this is done on a bench, then the resistance needs to be a physical...

Just how much extension wire that needs to be replaced is involved here? A couple hundred feet?