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| Measuring Temperature |
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| Rob.Wilson:
Hi Lads a spot of help needed I need some way of measuring the temperature in a temporary core oven i am going to knock up ,,250C max ,,,,,,,,, I saw some were a set up with a multi meter and two wire wound together :scratch:,,, any idea what type of wire ? and how do you calibrate it ? . or dose anyone have a better idea Thanks Rob |
| John Rudd:
There are a number of ways of measuring temp... Optical pyrometer..( I guess you aint got one to hand....) or there is the simple thermocouple... A thermocouple is made by twisting together two disimmilar metal wires ( Iron/Constantan) that will generate an emf proportional to temperature...( Its called the Seebeck effect... I'm a tiffy by trade..) A standard dvm from Maplins should suffice for measuring the voltage 'though you may need tables to convert from volts to degrees( unlesse the dvm has a t/c input..! ) Have a look here: http://www.tc.co.uk/ I use this company at work, let me know if you have any queries. :thumbup: |
| Bluechip:
Rob I got one of these .. or similar .. comes with a (type K ??) thermocouple http://www.rapidonline.com/Tools-Fasteners-Production-Equipment/Test-Equipment/Multimeters/328-Digital-LCD-multimeter/31051 Up to circa 900 c IIRC Will look if interested .. Quite surprised how accurate it was .. about +/- 6 C at 800 C Checked by a mate in the test labs @ RR Dave BC OOOps EDIT ... spec says type K .. memory not so shot as I thought ... Hope yet .. :lol: |
| Bluechip:
No response from Rob yet !!! Not gone down another hole has he .... :lol: :lol: |
| Bluechip:
Could well be .. Did notice a puff of smoke .... I, too, shall retire ... Dave BC |
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