PR293 Series Nanovolt Microhm Thermometer
Isisombululo esiphezulu se-7 1/2
Umxhasi we-CJ odibeneyo we-thermocouple
Iitshaneli zokulinganisa ezininzi
Iithemometha ze-PR291 ze-microhm kunye ne-PR293 ze-nanovolt microhm thermometer zizixhobo zokulinganisa ezichanekileyo ezilungiselelwe ngokukodwa i-metrology yobushushu.Zifanelekile kwimisebenzi emininzi, njengokulinganisa kwedatha yeqondo lokushisa kwenzwa yeqondo lokushisa okanye idatha yombane, uvavanyo lokufana kweqondo lokushisa kwee-furnaces zokulinganisa okanye iibhafu, kunye nokufumana uphawu lobushushu kunye nokurekhoda kwamajelo amaninzi.
Ngesisombululo somlinganiselo esingcono kune-7 1/2, xa kuthelekiswa neemultimeters zedijithali ezichanekileyo, eziye zasetyenziswa ngokubanzi kwi-metrology yobushushu ixesha elide, kukho uyilo oluninzi olulungiselelwe ngokoluhlu, umsebenzi, ukuchaneka, kunye nokulula kokusetyenziswa ukwenza inkqubo yokulinganisa ubushushu ichaneke ngakumbi, ilungele kwaye ikhawuleza.
Iimbonakalo
- Uvakalelo lomlinganiselo we-10nV / 10μΩ
Uyilo oluphumeleleyo lweamplifier yengxolo ephantsi kakhulu kunye nemodyuli yonikezelo lwamandla esezantsi kakhulu iyayinciphisa kakhulu ingxolo yokufunda yelophu yomqondiso, ngaloo ndlela inyusa ubuntununtunu bokufunda ukuya kwi-10nV/10uΩ, kwaye yandisa ngempumelelo amadijithi abonisayo ngexesha lokulinganisa ubushushu.
- Uzinzo lonyaka olugqwesileyo
Iithemometha ze-PR291/PR293, zamkela umgaqo womlinganiselo womlinganiselo kunye nezichasi ezikumgangatho owakhelwe ngaphakathi, zine-coefficient esezantsi kakhulu yobushushu kunye nokuzinza okuhle konyaka.Ngaphandle kokwamkela umsebenzi wereferensi yobushushu obungaguqukiyo, uzinzo lonyaka lwalo lonke uthotho lusenokuba ngcono kakhulu kunesiqhelo esisetyenziswa 7 1/2 multimeter yedijithali.
- Iskena esidityanisiweyo samajelo amaninzi esinengxolo ephantsi
Ukongeza kwishaneli yangaphambili, kukho iiseti ezi-2 okanye ezi-5 ezizimeleyo zovavanyo olupheleleyo lwe-terminals zihlanganiswe kwipaneli yangasemva ngokweemodeli ezahlukeneyo kwi-PR291 / PR293 series thermometers.Ishaneli nganye inokuzimela ngokuzimeleyo uhlobo lwesignali yovavanyo, kwaye inokubambisana okuphezulu kakhulu phakathi kwamajelo, ngoko ke ukufumana idatha ye-multi-channel kungenziwa ngaphandle kokutshintsha kwangaphandle.Ukongezelela, idizayini ephantsi yengxolo iqinisekisa ukuba iimpawu ezixhunywe kwiitshaneli aziyi kuzisa ingxolo yokufunda eyongezelelweyo.
- Imbuyekezo ye-CJ echanekileyo
Ukuzinza kunye nokuchaneka kweqondo lokushisa kwe-CJ kudlala indima ebalulekileyo ekulinganisweni kwe-thermocouples ephezulu.Iimitha zedijithali ezisetyenziswa ngokuqhelekileyo ezichanekileyo kufuneka zidityaniswe nesixhobo esikhethekileyo sembuyekezo ye-CJ yomlinganiselo we-thermocouple.Imodyuli yembuyekezo ye-CJ echanekileyo echanekileyo idityaniswe kwii-thermometers ze-PR293, ngoko ke impazamo ye-CJ yesitishi esisetyenzisiweyo esingcono kune-0.15 ℃ ngaphandle kweminye i-peripherals inokuqondwa.
- Imisebenzi yemitha yobushushu obutyebileyo
Iithemometha ze-PR291/PR293 sisixhobo esikhethekileyo sovavanyo esenzelwe ishishini lemitha yobushushu.Kukho iindlela ezintathu zokusebenza zokufumana, umkhondo wetshaneli enye, kunye nemilinganiselo yomahluko weqondo lobushushu, apho imowudi yomlinganiselo wobushushu inokuhlalutya ukufana kweqondo lobushushu kuzo zonke iintlobo zezixhobo zobushushu ezingaguqukiyo.
Xa kuthelekiswa ne-multimeter yedijithali yendabuko, uluhlu lwe-30mV ngokukodwa ukulinganisa i-S-type thermocouples kunye ne-400Ω uluhlu lwe-PT100 yokulinganisa i-platinum yokumelana yongezwa.Kwaye kunye neenkqubo zoguqulo ezakhelwe-ngaphakathi zeeseva ezahlukeneyo zobushushu, iintlobo ngeentlobo zabenzi boluvo (ezifana ne-thermocouples eqhelekileyo, i-thermometers yokumelana neplatinam, i-industrial platinum resistance thermometers kunye ne-thermocouples esebenzayo) inokuxhaswa, kunye nedatha yesatifikethi okanye idatha yolungiso inokubhekiselwa kumkhondo. ubushushu beziphumo zovavanyo.
- Umsebenzi wohlalutyo lwedatha
Ukongeza kwiinkcukacha ezahlukeneyo zovavanyo, iijika kunye nokugcinwa kwedatha kunokuboniswa, idatha yexesha langempela eliphezulu / ubuncinane / ixabiso eliphakathi, uluhlu lwedatha yokuzinza kweqondo lokushisa lunokubalwa, kwaye idatha ephezulu kunye nencinci inokumakishwa ukuququzelela uhlalutyo lwedatha enembile. kwindawo yovavanyo.
- Uyilo oluphathekayo
Iimitha zedijithali ezichaneke kakhulu eziqhele ukusetyenziswa kwiilabhoratri zidla ngokuba nkulu kwaye aziphatheki.Ngokwahlukileyo, i-PR291 / PR293 iithemometha zechungechunge zincinci kumthamo kunye nobunzima, obulungele uvavanyo lobushushu obuphezulu kwiindawo ezahlukeneyo zesayithi.Ukongeza, uyilo lwebhetri ye-lithium eyakhelwe-ngaphakathi enkulu yenza inkqubo yokusebenza ibe lula.
Itheyibhile yokukhetha imodeli
| PR291B | PR293A | PR293B | |
| Umzekelo wokuSebenza | |||
| Uhlobo lwesixhobo | Ithemometha yeMicrohm | Ithemomitha yeNanovolt microhm | |
| Umlinganiselo wokuchasa | ● | ||
| Umlinganiselo womsebenzi opheleleyo | ● | ● | |
| Inani letshaneli yangasemva | 2 | 5 | 2 |
| Ubunzima | 2.7kg (ngaphandle kwetshaja) | 2.85kg (ngaphandle kwetshaja) | 2.7kg (ngaphandle kwetshaja) |
| Ubude bebhetri | ≥6 iiyure | ||
| Ixesha lokufudumala | Isebenza emva kwemizuzu engama-30 yokufudumala | ||
| Ubungakanani | 230mm×220mm×105mm | ||
| Ubungakanani besikrini sokubonisa | I-Industrial-grade 7.0 intshi yesikrini sombala we-TFT | ||
| Indawo yokusebenza | -5～30℃，≤80%RH | ||
Iinkcukacha zombane
| Uluhlu | Isikali sedatha | Isigqibo | Unyaka omnye ukuchaneka | I-coefficient yobushushu |
| (i-ppm yokufunda uluhlu lwe-ppm) | (5℃～35℃) | |||
| (ufundo lweppm +ppm uluhlu)/℃ | ||||
| 30mV | -35.00000mV～35.00000mV | 10nV | 35 + 10.0 | 3+1.5 |
| 100mV | -110.00000mV～110.00000mV | 10nV | 40 + 4.0 | 3+0.5 |
| 1V | -1.1000000V ～1.1000000V | 0.1μV | 30 + 2.0 | 3+0.5 |
| 50V | -55.00000 V～55.00000 V | 10μV | 35 + 5.0 | 3+1.0 |
| 100Ω | 0.00000Ω～105.00000Ω | 10μΩ | 40 + 3.0 | 2+0.1 |
| 400Ω | 0.0000Ω～410.0000Ω | 0.1mΩ | 40 + 3.0 | 2+0.1 |
| 1KΩ | 0.0000000kΩ ～ 1.1000000kΩ | 0.1mΩ | 40 + 2.0 | 2+0.1 |
| 10KΩ | 0.000000kΩ ～ 11.000000kΩ | 1mΩ | 40 + 2.0 | 2+0.1 |
| 50mA | -55.00000 mA ～ 55.00000 mA | 10nA | 50 + 5.0 | 3+0.5 |
Qaphela i-1: Ukwamkela indlela yokulinganisa i-wire-wire ukulinganisa ukuchasana: i-excitation current ye-10KΩ uluhlu yi-0.1mA, kwaye i-excitation current yezinye iindawo zokumelana yi-1mA.
Qaphela 2: Umsebenzi wangoku womlinganiselo: isichasi sevamngxu yangoku yi-10Ω.
Qaphela 3: Ubushushu bokusingqongileyo ngexesha lovavanyo yi-23℃±3℃.
Umlinganiselo wobushushu oneethemomitha zokumelana neplatinam
| Umzekelo | SPRT25 | SPRT100 | Pt100 | Pt1000 |
| Inkqubo | ||||
| Isikali sedatha | -200.0000 ℃ ～ 660.0000℃ | -200.0000 ℃ ～ 740.0000℃ | -200.0000 ℃ ～ 800.0000℃ | |
| PR291/PR293 series unyaka omnye ukuchaneka | Kwi-200℃, 0.004℃ | Kwi-200℃, 0.005℃ | ||
| Kwi-0℃, 0.013℃ | Kwi-0℃, 0.013℃ | Kwi-0℃, 0.018℃ | Kwi-0℃, 0.015℃ | |
| Kwi-100℃, 0.018℃ | Kwi-100℃, 0.018℃ | Kwi-100℃, 0.023℃ | Kwi-100℃, 0.020℃ | |
| Kwi-300℃, 0.027℃ | Kwi-300℃, 0.027℃ | Kwi-300℃, 0.032℃ | Kwi-300℃, 0.029℃ | |
| Kwi-600℃, 0.042℃ | Kwi-600℃, 0.043℃ | |||
| Isigqibo | 0.0001℃ | |||
Umlinganiselo wobushushu kunye ne-thermocouples yentsimbi ehloniphekileyo
| Umzekelo | S | R | B |
| Inkqubo | |||
| Isikali sedatha | 100.000 ℃ ～ 1768.000 ℃ | 250.000 ℃ ～ 1820.000 ℃ | |
| PR291,PR293uthotho unyaka ukuchaneka | 300℃,0.035℃ | 600℃,0.051℃ | |
| 600℃,0.042℃ | 1000℃,0.045℃ | ||
| 1000℃,0.050℃ | 1500℃,0.051℃ | ||
| Isigqibo | 0.001℃ | ||
Qaphela: Ezi ziphumo zingentla azibandakanyi impazamo yembuyekezo ye-CJ.
Umlinganiselo wobushushu kunye nesiseko se-thermocouples yentsimbi
| Umzekelo | K | N | J | E | T |
| Inkqubo | |||||
| Isikali sedatha | -100.000 ℃ ～ 1300.000 ℃ | -200.000 ℃ ～ 1300.000 ℃ | -100.000 ℃ ～ 900.000 ℃ | -90.000℃ ～ 700.000 ℃ | -150.000 ℃ ～ 400.000 ℃ |
| PR291,PR293uthotho unyaka ukuchaneka | 300℃,0.022℃ | 300℃,0.022℃ | 300℃,0.019℃ | 300℃,0.016℃ | -200℃,0.040℃ |
| 600℃,0.033℃ | 600℃,0.032℃ | 600℃,0.030℃ | 600℃,0.028℃ | 300℃,0.017℃ | |
| 1000℃,0.053℃ | 1000℃,0.048℃ | 1000℃,0.046℃ | 1000℃,0.046℃ | ||
| Isigqibo | 0.001℃ | ||||
Qaphela: Ezi ziphumo zingentla azibandakanyi impazamo yembuyekezo ye-CJ.
Iinkcukacha zobugcisa zembuyekezo ye-CJ eyakhelwe-ngaphakathi ye-thermocouple
| Inkqubo | PR293A | PR293B |
| Isikali sedatha | -10.00 ℃ ～ 40.00 ℃ | |
| Unyaka omnye ukuchaneka | 0.2 ℃ | |
| Isigqibo | 0.01 ℃ | |
| Inombolo yemijelo | 5 | 2 |
| Owona mahluko mkhulu phakathi kwamajelo | 0.1℃ | |
