I.Incazelo

I-Standard Platinum Resistance Thermometer isetshenziselwa ukunxephezela izinga lokushisa elijwayelekile elingu-13.8033k—961.8°C, futhi isetshenziswa njengendinganiso lapho kuhlolwa ama-thermometer ahlukahlukene ajwayelekile kanye nama-thermometer anembe kakhulu. Ngaphakathi kwendawo yokushisa engenhla, isetshenziswa futhi ngqo ekulinganiseni izinga lokushisa elinembe kakhulu.

I-Standard Platinum Resistance Thermometer ilinganisa izinga lokushisa ngokwezinga lokushisa eliguquguqukayo lokumelana kweplatinum.

Ngokuhambisana nemithethonqubo ye-ITS90, i-T₉₀Ichazwa yi-thermometer yeplatinum lapho iphuzu elithathu (13.8033K) lebhalansi ye-nitrogen lifinyelela ebangeni lokushisa lephuzu lokuqandisa lesiliva. Ifakwa ku-index ngokusebenzisa iqembu lephuzu lokuqandisa elichaziwe elidingekayo kanye nomsebenzi wokubhekisela kanye nomsebenzi wokuphambuka kokuhunyushwa kwezinga lokushisa.

Ukuhlukaniswa kwezinga lokushisa okungenhla kuhlukaniswe kaningana futhi kunqunywe ukusebenza ngokujwayelekile ngaphakathi kwendawo engaphansi kwezinga lokushisa ngezinhlobo ezahlukene zesakhiwo sama-thermometer.

Bheka ama-thermometer anemininingwane etafuleni elingezansi:

Qaphela: I-Rtp yama-thermometer angenhla ingu-25±1.0Ω. Ububanzi bangaphandle bamashubhu e-quartz bungu-φ7±0.6mm. Ifektri yethu iphinde ikhiqize i-thermometer yeplatinum enezinga lokushisa elingu-83.8058K~660.323℃ njengethuluzi elijwayelekile elisebenzayo.

II.Sebenzisa Ulwazi

1. Ngaphambi kokusebenzisa, okokuqala, hlola inombolo ye-thermometer ukuze ihambisane nesitifiketi sokuhlola.

2. Uma usebenzisa, ngokwelogo ye-lug ye-terminal ye-thermometer wire, xhuma intambo ngendlela efanele. I-lug① yentambo ebomvu ixhunywe kwi-terminal yamanje; i-lug③yentambo ephuzi, kwi-terminal yamanje engemihle; kanye ne-lug②yentambo emnyama, kwi-terminal engemihle; i-lug④yentambo eluhlaza, kwi-terminal engemihle.

Okulandelayo yisibonelo se-thermometer:

3. Ugesi kufanele ube yi-1MA ngokuya ngokulinganisa ingxenye yokushisa ye-thermometer.

4. Ukuze kulinganiswe idivayisi yokulinganisa kagesi ye-thermometer yokulinganisa izinga lokushisa, kufanele kusetshenziswe i-potentiometer yokumelana okuphansi yebanga 1 kanye nokumelana okujwayelekile kwekhoyili yebanga 0.1 noma ibhuloho lokulinganisa izinga lokushisa elinembile kanye nezesekeli. Isethi ephelele yedivayisi yokulinganisa kagesi kufanele iqinisekiswe ukuthi inozwela lokuhlukanisa ukushintsha kwe-Ohm eyodwa yezinkulungwane eziyishumi.

5. Ngesikhathi senqubo yokusebenzisa, ukulondoloza kanye nokuthuthwa, zama ukugwema ukudlidliza okukhulu kwe-thermometer.

6. Uma usebenzisa i-Standard Platinum Resistance Thermometer yebanga lokuqala ukuhlola izinga lokushisa le-Standard Platinum Resistance Thermometer yebanga lesibili, kufanele ulandele izinqubo zokuqinisekisa ezivunyiwe yi-National Measurement Bureau.

7. Ukuhlolwa okuvamile kwe-thermometer kufanele kwenziwe ngokuqinile ngokwezinqubo nemithethonqubo efanele yokuqinisekisa.