Math R Thermocouple Estyniad Wire
SNC(RNC, RNX) Gwifren thermocouple gwifren moel ar gyfer cebl estyniad thermocouple math S, R
Mae SNC (RNC) yn cael ei ystyried yn goes negyddol ar gyfer cebl thermocouple gradd estyniad math S, R.
|
Thermocouple Math |
Cod aloi |
Cyfansoddiad Cemegol (%) |
Argymell Tymheredd Gweithio Hir |
|
|
Pt (platinwm) |
Rh ( Rhodiwm ) |
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|
Math S |
SP(Pt90Rh) |
90 |
10 |
0-1300 gradd |
|
SN(Pt) |
100 |
|||
|
Math B |
BP(Pt70Rh) |
70 |
30 |
0-1600 gradd |
|
BN(Pt94Rh) |
94 |
6 |
||
|
Math R |
RP (Pt87Rh) |
87 |
13 |
0-1300 gradd |
|
RN(Pt) |
100 |
|||
|
Thermocouple Math |
Gradd Tymheredd Gweithio Hir |
Gradd Uchafswm Tymheredd Gweithio Byr |
|
Math S |
1300 |
1600 |
|
Math R |
1300 |
1600 |
|
Math B |
1600 |
1700 |
|
Paramedr corfforol |
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|
Eitem |
Pt90Rh |
Pt |
Pt87Rh |
Pt70Rh |
Pt94Rh |
|
gradd Pwynt Toddi |
1847 |
1769 |
1860 |
1927 |
1826 |
|
Dwysedd(g/cm3) |
20.00 |
21.46 |
19.61 |
17.60 |
20.60 |
|
Pwysau fesul metr/g (Φ0.5mm) |
3.93 |
4.21 |
3.82 |
3.45 |
4.04 |
|
Gwrthiant ar 20 gradd /µΩ∙cm |
18.9 |
10.4 |
19.6 |
19.0 |
17.5 |
|
Cyfernod tymheredd cyfartalog y gwrthiant(0-1200 gradd )/( 10-4/ gradd ) |
14 |
31 |
13.3 |
13.3 |
20.6 |
|
Cryfder Tynnol/MPa |
314 |
137 |
344 |
483 |
276 |
|
Cyfradd Elongation(L0=100mm)/% |
35 |
40 |
35 |
30 |
35 |
|
Goddefgarwch Tymheredd |
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|
Thermocouple Math |
Gradd Cywirdeb |
Profi |
Gwyriad/gradd a ganiateir |
|
|
I |
0-1100 |
+/-1 |
|
1100-1600 |
+/-【1+(t-1100)*0.3%】 |
||
|
II |
0-600 |
+/-1.5 |
|
|
600-1600 |
+/-0.25%*t |
||
|
Math B |
II |
600-1700 |
+/-0.25%*t |
|
III |
600-800 |
+/-4 |
|
|
800-1700 |
+/-0. 5%*t |
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|
"T" yw'r tymheredd terfynell mesur |
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