MFUNDO ZA MACHITIDWE
Mtundu wa R Thermocouple (Platinum Rhodium -13% / Platinum):
Mtundu wa R umagwiritsidwa ntchito pa kutentha kwambiri. Uli ndi kuchuluka kwa Rhodium kuposa Mtundu wa S, zomwe zimapangitsa kuti ukhale wokwera mtengo kwambiri. Mtundu wa R ndi wofanana kwambiri ndi Mtundu wa S pankhani ya magwiridwe antchito. Nthawi zina umagwiritsidwa ntchito pa kutentha kochepa chifukwa cha kulondola kwake komanso kukhazikika kwake. Mtundu wa R uli ndi kutulutsa kwakukulu pang'ono komanso kukhazikika bwino kuposa mtundu wa S.
Ma thermocouple a Type R, S, ndi B ndi ma thermocouple a "Noble Metal", omwe amagwiritsidwa ntchito potentha kwambiri.
Ma thermocouple a Type S amadziwika ndi kusakhala ndi mpweya wabwino komanso kukhazikika kwa mankhwala kutentha kwambiri. Nthawi zambiri amagwiritsidwa ntchito ngati muyezo woyezera ma thermocouple achitsulo choyambira.
Platinum rhodium thermocouple (Mtundu wa S/B/R)
Mtundu wa Platinum Rhodium Assembly Thermocouple umagwiritsidwa ntchito kwambiri m'malo opangira zinthu zomwe kutentha kwake kuli kwakukulu. Umagwiritsidwa ntchito makamaka poyesa kutentha kwa magalasi ndi mafakitale a ceramic komanso salting yamafakitale.
Zipangizo zotetezera kutentha: PVC, PTFE, FB kapena malinga ndi zomwe kasitomala akufuna.
Mtundu wa Kutentha kwa Mtundu R:
Kulondola (komwe kuli kwakukulu):
Kuganizira za kugwiritsa ntchito thermocouple ya waya wopanda waya wa mtundu wa R:
| Khodi | Chigawo cha mawaya a thermocouple | |
| +Mwendo wabwino | -Mwendo woipa | |
| N | Ni-cr-si (NP) | Ni-si-magnesium (NN) |
| K | Ni-Cr (KP) | Ni-Al(Si) (KN) |
| E | Ni-Cr (EP) | Cu-Ni |
| J | Chitsulo (JP) | Cu-Ni |
| T | Mkuwa (TP) | Cu-Ni |
| B | Platinum Rhodium-30% | Platinum Rhodium-6% |
| R | Platinum Rhodium-13% | Platinamu |
| S | Platinum Rhodium-10% | Platinamu |
| ASTM | ANSI | IEC | DIN | BS | NF | JIS | GOST |
| (American Society for Testing and Materials) E 230 | (American National Standard Institute) MC 96.1 | (Muyezo wa ku Ulaya wochokera ku International Electrotechnical Commission 584) -1/2/3 | (Deutsche Industrie Normen) EN 60584 -1/2 | (Miyezo yaku Britain) 4937.1041, EN 60584 - 1/2 | (Norme Française) EN 60584 -1/2 - NFC 42323 - NFC 42324 | (Miyezo Yamakampani Yaku Japan) C 1602 – C 1610 | (Kugwirizana kwa Mafotokozedwe a Chirasha) 3044 |
Waya: 0.1 mpaka 8.0 mm.
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150 0000 2421