Thanks for sharing Bryan like always your a HVAC ROCKSTAR
@jrodriguez4855
2 ай бұрын
Great video. Easy to follow and helpful.
@zyxnix
Жыл бұрын
Cool trick clamping the cube!
@OcRefrig
4 жыл бұрын
Good video. nice easy calibration on those fieldpiece. ( Ftngot ) Fyi guys - above 200 degrees F & below minus 95 degrees F Per fieldpiece Type K thermocouple +- 2 degrees accuracy. +- 1 otherwise as said in video. Trivia - Back in the day ( the 80's ) when i was calibrating Type J & Type K Thermocouple Digital display controllers to NBS ( National bureau of standards ) We were only good for +- 2 degree's & Lucky to get that at times and calibrating was wayyyy more difficult. a major pain in the ***.
@eatcommies1375
4 жыл бұрын
Another good one Bryan , I’m not sure if that’s within Your work scope but I’d love to see a video on how to navigate building automation systems and being able to see when equipment has a fault or not and how to take corrective actions. Thanks.
@o.v.9110
4 жыл бұрын
Nice video..calibration on a Fieldpeice multimeter with a K-type port is also fun.
@costi08
4 жыл бұрын
The way I know is that you submerge the thermal sensitive element in ice.. ice with water. First you put the ice in the bowl, you stick thermal sensitive element in the ice and after that you pour the water to fill the gaps between. The ice should not float! And you should get a reading of 2.22°C or 35.996°F. That I've learned in college. That I got with a TUV certified fridge thermometer.
@Oscarbm1234
4 жыл бұрын
CSL 35F° ??........
@tyhuffman5447
4 жыл бұрын
I believe you are correct, water freezes at 32f so in that case water and ice would be cooling towards 32f, in this case water was added to ice and afforded some time to equalize so the reading should be higher than 32f but less than 40f. By filling the bowl up with ice chips and adding just enough water to begin to float the ice would be better, and calibrating while stirring the bath would be best. An old lab grade mercury thermometer from FleaBay would be a nice sanity check. Also Brian pointed out that the calibrated accuracy would be +/-1f so a reading of 33f in an ice bath would be in range so there's no need to adjust. There is a reason that machinists are obsessed with flatness and measurement accuracy and why labs go through the expense and hassle of using a standards lab to certify their instruments. My point is that the initial reading of 33f in an ice bath was probably better than the adjusted reading of 32f. As a sanity check, the ice would be melting into the water so the bath would be at some temperature higher than 32f because 32f is frozen water. water mixed with ice that is melting should be at a slightly higher temperature. If the bowl were placed in a freezer and allowed to cool it would take some time to freeze but we know water freezes at 32f so clearly the contents are not at 32f. It may be close to 32f but not right on. Upon further consideration I have to say that Brian’s technique of placing an ice cube in the clamp holding it against the probe tip mitigates any issues with the rest of the bath being slightly warmer. So by following Brian’s technique the readings should be spot on 32f. Great technique Brian! I was right up to the point he clamped the ice cube in the probe, then I was wrong. From a practical POV I would guess an ice bath could get to 33f and less as it approaches freezing. The fact that it takes a lot of energy to phase change the water to ice means it could get very close but still just hang on as really cold water.
@markmonaco8901
4 жыл бұрын
Thanks
@joseg6073
4 жыл бұрын
Wow nice video thanks sr
@texas5seven374
3 жыл бұрын
So you have a video on how to calibrate the pressure ports for sm480v?
@BrettL250
3 жыл бұрын
Thanks man
@AndyHoltOutdoorUniversity
4 жыл бұрын
If you ain’t measuring accurately ...you’re guessing. 👍
@davidb2438
2 жыл бұрын
Can’t have negative sub cooling, not measuring correctly, wet coil may give a low subcooling
@Larrye123
2 жыл бұрын
We did this experiment to verify what happens with thermometers in ice. The ice must be finely CRUSHED (Think 7-11 Slurpee) and inside of an INSULATED STYROFOAM CUP to be 32 degrees. It should be no than 10 percent water max. If this is not done the actual water temperature WILL BE 33 or 34 degrees because it is NOT the temperature of ice! Styrofoam cup is mandatory to get to 32 degrees.
@davidb2438
2 жыл бұрын
I have some UEI clamps with type k gauge and I have found response time is minutes not seconds
@beau-beauthecharlieboy8098
2 жыл бұрын
My sub cooling never correct.. always negative numbers can you answer this type of question?
@boywhohadatiger
2 жыл бұрын
Is this also necessary if you your using the clamp on your multimeter ?
@f.oliveiraclimatizacaoeele1286
4 жыл бұрын
Top!!!
@OcRefrig
4 жыл бұрын
Fyi - a Perfect Slushy ice mix is best for calibration. Remember those brain freezes as a kid , from slusheys anyone ?
@jonathanscavs9334
2 ай бұрын
Is this the same for sm480v?
@liljfk9314
3 жыл бұрын
I have the testo wireless clamps and they're way off! AND I can't adjust them on site, I have to send it to Testo themselves! Wtf!
@scrambler350
4 жыл бұрын
Is there a way to do this with the Testo 549 ..?
@Ricky32908
4 жыл бұрын
I have SMAN3, how do I calibrate those?
@zekenzy6486
4 жыл бұрын
how much fieldpiece your manifold gauge ?
@mrgreen2646
4 жыл бұрын
How can you calibrate the clamp if you dont have the manifold?
@chuckdearruda6271
4 жыл бұрын
The K Type thermocouples themselves are not calibrateable, it’s only the instruments that you plug them into that can be calibrated.
@mrgreen2646
4 жыл бұрын
@@chuckdearruda6271 good to know thank you.
@KendalMike
10 ай бұрын
Is it not time you guys joined the 20th century and started using Celsius?! 😉
@robiness6964
4 жыл бұрын
It’s same process for 480v?
@HVACS
4 жыл бұрын
Yes
@rafaelgomez4304
4 жыл бұрын
Isn't that the 480V
@HVACS
4 жыл бұрын
No, 480 is a 4 port
@rafaelgomez4304
4 жыл бұрын
@@HVACS Got it! Didn't realize it was only a 3 port, I have the 480.
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