Taba ea pele, li-thermocouple tse ngata li na le khoutu ea mebala. Sistimi ena ea khoutu ea mebala ke referense e potlakileng ea pono, empa ho bohlokoa ho e atamela ka hloko. Mohlala, holi-thermocouple tsa mofuta oa K, tse ling tsa li-thermocouple tse sebelisoang haholo ka lebaka la mocheso oa tsona o pharaletseng le botsitso bo botle, terata e ntle hangata e entsoe ka chrome 'me hangata e na le' mala o mosehla, ha terata e mpe, e entsoeng ka alumel, hangata e le khubelu. Leha ho le joalo, litekanyetso tsa ho ngola mebala li ka fapana libakeng tse fapaneng kapa ho latela bahlahisi ba fapaneng. Mehahong e meng e seng ea maemo a tloaelehileng kapa ea khale, mebala e kanna ea se latele mokhoa o tloaelehileng. Ka hona, u se ke ua itšetleha feela ka 'mala bakeng sa ho khetholla; e lokela ho sebelisoa e le tataiso ea pele.

Tsela e 'ngoe e tšepahalang ke ho hlahloba thepa ea terata. Mefuta e fapaneng ea li-thermocouple e entsoe ka metsoako e fapaneng ea tšepe, 'me mofuta o mong le o mong o na le terata e hlalositsoeng e ntle le e mpe e thehiloeng ho thepa ena. Mohlala, holi-thermocouple tsa mofuta oa J, terata e ntle e entsoe ka tšepe, e tsebahalang ka karabelo ea eona e ntle maemong a itseng a mocheso, 'me terata e mpe ke constantan, e fanang ka botsitso bo botle le ho lumellana le tšepe. Ka ho bua ka litlhaloso tsa semmuso tsa mofuta oa thermocouple, tse hlalosang sebopeho le polarity e nepahetseng ea mofuta o mong le o mong, basebelisi ba ka fumana li-polarity tse nepahetseng ka bonnete bo boholo. Ho feta moo, li-thermocouple tse ling tse tsoetseng pele li tla le maqephe a data a sa thathamiseng feela thepa empa hape a fana ka tlhaiso-leseling e eketsehileng mabapi le litšobotsi tsa motlakase tse lebelletsoeng tse amanang le lithapo tse ntle le tse mpe.

Lihlahisoa tsa terata tsa thermocouple tsa k'hamphani ea rona li fana ka melemo e ikhethang ntlheng ena. Re tšoaea ka ho hlaka lithapo tse ntle le tse mpe lihlahisoa tsohle tsa rona, eseng feela ka ho ngola mebala e tloaelehileng empa hape le ka li-label tse hlakileng. Li-label li hatisoa ka enke ea boleng bo holimo, e tšoarellang e ke keng ea fela kapa ea senyeha habonolo, esita le libakeng tse thata tsa indasteri. Sistimi ena ea boitsebiso e habeli e netefatsa hore basebelisi ba ka tseba lithapo kapele le ka nepo, ba boloka nako le ho fokotsa kotsi ea likhokahano tse fosahetseng.

Ho feta moo, lithapo tsa rona tsa thermocouple li entsoe ka li-alloy tsa tšepe tsa boleng bo holimo tse nang le botsitso bo botle ba mocheso le ho tšoarella. Ts'ebetso ea tlhahiso e kenyelletsa taolo e tiileng ea boleng mohatong o mong le o mong, ho tloha khethong ea thepa e tala ho isa ho sephutheloana sa ho qetela. Ebang ke bakeng sa lits'ebetso tsa indasteri tse nang le mocheso o phahameng, joalo ka tlhahiso ea tšepe moo mocheso o ka fihlang maemong a holimo haholo, kapa liteko tse nepahetseng tsa saense tse hlokang ho nepahala ha motsotsoana, lihlahisoa tsa rona li ka boloka ts'ebetso e tsitsitseng le liphetho tse nepahetseng tsa tekanyo. Re boetse re etsa liteko tse matla holim'a sehlopha se seng le se seng sa lithapo tsa thermocouple, ho kenyeletsoa liteko tsa conductivity ea motlakase, botsitso ba thermal emf, le matla a mechini. Ka lits'ebetso tsena tse tiileng tsa taolo ea boleng, re netefatsa hore lithapo tse ntle le tse mpe lihlahisoa tsa rona tsa thermocouple li fihlela maemo a holimo a indasteri, li u fa tharollo e tšepahalang bakeng sa tekanyo ea mocheso.

Qetellong, leha ho na le mekhoa e mengata ea ho khetholla lithapo tse ntle le tse mpe tsa thermocouple, ho khetha lihlahisoa tsa rona tsa terata ea thermocouple ea boleng bo holimo ho nolofatsa ts'ebetso mme ho netefatsa tekanyo e nepahetseng le e tsitsitseng ea mocheso. Boitlamo ba rona ho boleng le moralo o bonolo ho o sebelisa bo re etsa khetho e nepahetseng bakeng sa litlhoko tsohle tsa hau tsa terata ea thermocouple.