That is not calibration. The emissivity setting is for different materials that you would be measuring, for example, the infrared emissivity of skin is around 0.98, polished steel 0.10, copper 0.60, etc. The emissivity of water and ice is going to be nowhere near the emissivity of say a wall, or steel. You set the emissivity for the material to be measured. If you set the emissivity to give you the correct temp for water, that is the only material that will give you a correct reading, it will be wildly incorrect for any other material, like skin, wood, or plastic. You can google emissivity charts for different materials so that you can set the emissivity correctly for each material to be measured.
@@ewerson18 it says look up the emissivity chart for whatever you are measuring. My guess to calibrate you would set the emmisivity to water and make sure it calibrates to 32 F or 0 C for ice water then go from there changing the thermo emissivity chart to other things you would want to measure.
@@JesseFlannery hey Jesse, thanks I will try that. My sensor is measuring above what really is, perhaps it's just some dirt in the lens, I need to test it.
Another thing no one is mentioning is to calibrate, you need a standard. That standard also needs calibration. If you don't have a calibrated standard, you don't have any calibration.
that's nnot calibration... you do not show how to calibrate. Emisivity depends on the material. If the reading is off.... how do you calibrate (adjust) the thermometer?
You can if the emissivity is set correctly for the particular fluid. Emissivity must be set for each different material you are shooting, you can look up emissivity tables for different materials online. Emissivity varies wildly based upon how reflective or light-absorbing a particular material is. Polished steel is around 0.10 while skin is around 0.98.
That is not calibration. The emissivity setting is for different materials that you would be measuring, for example, the infrared emissivity of skin is around 0.98, polished steel 0.10, copper 0.60, etc. The emissivity of water and ice is going to be nowhere near the emissivity of say a wall, or steel. You set the emissivity for the material to be measured. If you set the emissivity to give you the correct temp for water, that is the only material that will give you a correct reading, it will be wildly incorrect for any other material, like skin, wood, or plastic. You can google emissivity charts for different materials so that you can set the emissivity correctly for each material to be measured.
Wow this was really insightful and interesting, thank you for taking the time to share!
Thanks. This info is going to help me a lot. I am trying to get infrared thermometers into a healthcare setting. 😊
How can I calibrate?
@@ewerson18 it says look up the emissivity chart for whatever you are measuring. My guess to calibrate you would set the emmisivity to water and make sure it calibrates to 32 F or 0 C for ice water then go from there changing the thermo emissivity chart to other things you would want to measure.
@@JesseFlannery hey Jesse, thanks I will try that. My sensor is measuring above what really is, perhaps it's just some dirt in the lens, I need to test it.
Ok well I learned a lot from the comments and from your video for how to calibrate for water
Another thing no one is mentioning is to calibrate, you need a standard. That standard also needs calibration. If you don't have a calibrated standard, you don't have any calibration.
that's nnot calibration... you do not show how to calibrate. Emisivity depends on the material. If the reading is off.... how do you calibrate (adjust) the thermometer?
czcams.com/video/Nr_ziSlb4Sw/video.html
No... Any surface need a different EMS value
I think that this device can not support calibrate
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You cant get real reading shooting fluid on the surface
You can if the emissivity is set correctly for the particular fluid. Emissivity must be set for each different material you are shooting, you can look up emissivity tables for different materials online. Emissivity varies wildly based upon how reflective or light-absorbing a particular material is. Polished steel is around 0.10 while skin is around 0.98.
More info and a demonstration: czcams.com/video/Nr_ziSlb4Sw/video.html