Thermocouple Type K Alumel / Chromel Rod / Stick / Bar 6mm 8mm 9mm 10mm 12mm
Thermocouple Tipe K Alumel /Rod Chromel/ iteuk / Bar 6mm 8mm 9mm 10mm 12mm
TIPE K (CHROMEL vs ALUMEL) dipaké dina atmosfir pangoksidasi, inert atawa garing. Éta kedah ditangtayungan tina atmosfir sulfur sareng pangoksidasi marginal. Éta dipercaya sareng akurat dina suhu anu luhur.
1.KimiaKomposisi
| Bahan | Komposisi kimiawi (%) | ||||
| Ni | Cr | Si | Mn | Al | |
| KP (Chromel) | 90 | 10 | |||
| KN (Alumel) | 95 | 1-2 | 0,5-1,5 | 1-1.5 | |
2.Sipat Fisik jeung Sipat Mékanis
| Bahan |
Kapadetan (g/cm3) | titik lebur ℃) | Kakuatan Tensile (Mpa) | Résistansi volume (μΩ.cm) | Laju elongasi (%) |
| KP (Chromel) | 8.5 | 1427 | >490 | 70,6 (20 ℃) | > 10 |
| KN (Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | > 15 |
3.Rentang Niley EMF dina Suhu Béda
| Bahan | Nilai EMF Vs Pt(μV) | |||||
| 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ | 600 ℃ | |
| KP (Chromel) | 2816~2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532~19676 |
| KN (Alumel) | 1218~1262 | 2140~2180 | 2849~2893 | 3600~3644 | 4403~4463 | 5271~5331 |
| Nilai EMF Vs Pt(μV) | ||||
| 700 ℃ | 800 ℃ | 900 ℃ | 1000 ℃ | 1100 ℃ |
| 22845~22999 | 26064~26246 | 29223~29411 | 32313~32525 | 35336~35548 |
| 6167~6247 | 7080~7160 | 7959~8059 | 8807~8907 | 9617~9737 |
| Thermocouple Ragam jeung Indéks | ||
| rupa-rupa | Tipe | Rentang Pangukuran (°C) |
| NiCr-NiSi | K | –200–1300 |
| NiCr-CuNi | E | –200–900 |
| Fe-CuNi | J | –40–750 |
| Cu-CuNi | T | –200–350 |
| NiCrSi-NiSi | N | –200–1300 |
| NiCr-AuFe0.07 | NiCr-AuFe0.07 | –270–0 |
0.5 ″ 12.7mm KP Chromel KN Alumel Thermocouple Tipe K Rod Aplikasi
Karakteristik Tipe K nyaéta yén éta gaduh kamampuan anti oksidasi anu kuat, sareng kedah dianggo sacara terus-terusan dina atmosfir anu pangoksidasi sareng inert. Suhu pamakéan jangka panjang nyaéta 1000 ℃ sareng jangka pondok 1200 ℃. Ieu paling loba dipaké diantara sakabeh thermocouples; (teu bisa dipaké ngurangan atmosfir gas).
Thermocouple Gawé jeung Ngukur Rentang Suhu:
| Bahan Termokopel | Suhu Gawé Range sarta Toleransi | |||||
| Kelas I | Kelas II | |||||
| Indéks | Anoda | Katoda | Ngukur suhu | Kasabaran | Ngukur suhu | Kasabaran |
| K | NiCr10 | NiAl2 | -40 ℃ -1000 ℃ | ± 1,5 ℃ atawa ± 0,4% * T | 40 ℃ -1200 ℃ | ± 2,5 ℃ atawa 0,75% * T |
| T | Cu | CuNi40 | -40 ℃ -350 ℃ | 40 ℃ -350 ℃ | ± 1 ℃ atawa 0,75% * T | |
| J | Fe | CuNi40 | -40 ℃ -750 ℃ | 40 ℃ -750 ℃ | ± 2,5 ℃ atawa 0,75% * T | |
| E | NiCr10 | CuNi45 | -40 ℃ -800 ℃ | 40 ℃ -900 ℃ | ||
| N | NiCr14Si | NiSi4Mg | -40 ℃ -1000 ℃ | 40 ℃ -1200 ℃ | ± 2,5 ℃ atawa 0,75% * T | |
| R | Pt-13%Rh | Pt | 0 ℃ -1000 ℃ | 0 ℃ -600 ℃ | ± 1,5 ℃ | |
| S | Pt-10% Rh | 1000 ℃ -1600 ℃ | ±(1+0.003) | 600 ℃ -1600 ℃ | 0,25%*T | |
| B | Pt-30% Rh | Pt-6%Rh | - | - | 600 ℃ -1700 ℃ | ± 1,5 ℃ atawa 0,25% * T |
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