PR293 Series Nanovolt Microhm Thermometer
Taumira teitei o te 7 1/2
Kaiutuutu CJ thermocouple whakauru
Hongere ine maha
PR291 raupapa microhm thermometers PR293 raupapa nanovolt microhm thermometers he taputapu ine tino tika i hangaia mo te metrology pāmahana.He pai mo te maha o nga mahi, penei i te inenga o nga raraunga pāmahana o te pūoko pāmahana, te raraunga hiko ranei, te whakamatautau riterite o te pāmahana o nga oumu whakatikatika, kaukau ranei, me te whiwhi tohu tohu pāmahana me te tuhi i nga waahana maha.
He pai ake te taumira inenga i te 7 1/2, ka whakaritea ki nga ine-nui-nui-a-nui-a-ringa matihiko, kua whakamahia nuitia i roto i te metrology pāmahana mo te wa roa, he maha nga hoahoa papai i runga i te awhe, te mahi, te tika, me te ngawari o te whakamahi kia tika ake ai, kia watea, kia tere ake te tukanga whakatikatika pāmahana.
Ngā āhuatanga
Ine tairongo o 10nV / 10μΩ
Ko te hoahoa pakaruhanga o te whakakaha haruru ultra-iti me te iti o te ripple power supply ka tino whakaiti i te haruru panui o te kapiti tohu, na reira ka piki ake te tairongo panui ki te 10nV/10uΩ, me te whakanui ake i nga mati whakaatu whai hua i te inenga o te pāmahana.
He pai te pumau o te tau
PR291/PR293 raupapa ine weahanga, tango i te tikanga inenga ōwehenga me nga parenga paerewa taumata tohutoro kua hangaia, he iti rawa te whakarea o te pāmahana me te tino pai o te tau.Ki te kore e whakamahi i te mahi tohutoro mahana tonu, ka tino pai ake te pumau a-tau o te raupapa katoa i te inenga matihiko 7 1/2.
Matawai haruru haruru-maha kua whakakotahi
I tua atu i te hongere o mua, e 2, e 5 ranei nga huinga motuhake o nga waahanga whakamatautau mahi-katoa kua whakauruhia ki runga i te papa o muri e ai ki nga tauira rereke i roto i nga momo whakamaarama raupapa PR291/PR293.Ka taea e ia hongere te whakarite takitahi i te momo tohu tohu whakamatautau, me te tino riterite i waenga i nga hongere, na reira ka taea te tango raraunga maha-hongere me te kore he huringa o waho.I tua atu, ko te hoahoa iti-haruru ka whakarite kia kore nga tohu e hono ana i nga hongere e kawe mai i te haruru panui.
Te utu nui CJ
Ko te pumau me te tika o te pāmahana CJ ka whai waahi nui ki te ine i nga thermocouples tino tika.Ko nga mita matihiko tino tika e whakamahia ana me whakakotahi me nga taputapu utu CJ motuhake mo te ine ine wera.Ko te waahanga utu nui CJ kua whakatapua kua whakauruhia ki roto i nga momo whakamaarama raupapa PR293, na te hapa CJ o te hongere kua whakamahia he pai ake i te 0.15 ℃ kaore etahi atu peripheral ka taea te mohio.
Nga mahi metrology pāmahana nui
PR291/PR293 raupapa whakamaarama he taputapu whakamatautau motuhake mo te ahumahi metrology pāmahana.E toru nga momo mahi mo te hoko, te whai i te hongere-kotahi, me te inenga rerekee o te pāmahana, i roto i enei ka taea e te aratau inenga rerekee o te pāmahana te tātari i te riterite o te pāmahana o nga momo taputapu pāmahana tonu.
Ka whakatauritea ki te inenga matihiko tuku iho, ka taapirihia he awhe 30mV mo te ine i nga thermocouples momo-S me te awhe 400Ω mo te inenga parenga konukawata PT100.A, me nga kaupapa hurihanga mo nga momo pukoro pāmahana, ka taea te tautoko i nga momo pukoro (pēnei i te thermocouples paerewa, te inemahana parenga konukawata paerewa, te inemahana atete konukawata ahumahi me nga thermocouples mahi) ka taea te tautoko, me nga raraunga tiwhikete, raraunga whakatika ranei ka taea te tohutoro ki te whai. te pāmahana o nga hua whakamatautau.
Te mahi tātari raraunga
I tua atu i nga momo raraunga whakamatautau, ka taea te whakaatu i nga pihi me te rokiroki raraunga, te nui o nga raraunga wa-tuturu / te iti / te uara toharite, ka taea te tatau i nga momo raraunga pumau o te pāmahana, a ka taea te tohu te nui me te iti rawa o nga raraunga hei whakahaere i te tātaritanga raraunga mohio. i runga i te waahi whakamatautau.
Hoahoa kawe
Ko nga mita mamati tino tika e whakamahia ana i roto i nga whare taiwhanga he nui te nuinga, kaore he kawe.He rerekee, he iti ake te rahinga me te taumaha o nga momo whakamaarama raupapa PR291/PR293, he pai mo te whakamatautau pāmahana taumata-tiketike i roto i nga momo taiao i runga i te waahi.I tua atu, ko te hoahoa o te pākahiko lithium kaha-nui i hangaia he ngawari ake te mahi.
Ripanga whiriwhiri tauira
| PR291B | PR293A | PR293B | |
| Tauira Mahi | |||
| Momo taputapu | Werohanga Microhm | Weawera moroiti Nanovolt | |
| Ine ātete | ● | ||
| Te inenga mahi katoa | ● | ● | |
| Te maha o te hongere o muri | 2 | 5 | 2 |
| Taumaha | 2.7 kg(karekau he rihi) | 2.85kg（karekau he rihi） | 2.7kg（karekau he rihi） |
| Te roanga o te pākahiko | ≥6 haora | ||
| Te wa whakamahana | Ka whai mana i muri i te 30 meneti o te whakamahana | ||
| Ahu | 230mm×220mm×105mm | ||
| Te rahi o te mata whakaatu | Ahumahi-koeke 7.0 inihi mata tae TFT | ||
| Te taiao mahi | -5～30℃，≤80%RH | ||
Nga whakaritenga hiko
| Awhe | Tauine Raraunga | Whakatau | Kotahi tau te tika | Te whakarea pāmahana |
| (ppm panui ppm awhe) | （5℃～35℃） | |||
| (ppm panui +ppm awhe)/℃ | ||||
| 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 |
| 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 |
Tuhipoka 1: Te whakamahi i te tikanga inenga waea e wha ki te ine i te parenga: ko te naianei whakakorikori o te awhe 10KΩ he 0.1mA, ko te naianei whakakorikori o etahi atu awhe parenga he 1mA.
Tuhipoka 2: Ko te mahi inenga o naianei: ko te parenga tairongo o naianei he 10Ω.
Tuhipoka 3: Ko te pāmahana taiao i te wa o te whakamatautau he 23 ℃ ± 3 ℃.
Te ine ine pāmahana me te ine ine wera konukawata
| Tauira | SPRT25 | SPRT100 | Pt100 | Pt1000 |
| Papatono | ||||
| Tauine Raraunga | -200.0000 ℃ ～ 660.0000 ℃ | -200.0000 ℃ ～ 740.0000 ℃ | -200.0000 ℃ ～ 800.0000 ℃ | |
| PR291/PR293 raupapa kotahi tau tika | I -200 ℃, 0.004 ℃ | I -200 ℃, 0.005 ℃ | ||
| I te 0 ℃, 0.013 ℃ | I te 0 ℃, 0.013 ℃ | I te 0 ℃, 0.018 ℃ | I te 0 ℃, 0.015 ℃ | |
| I te 100 ℃, 0.018 ℃ | I te 100 ℃, 0.018 ℃ | I te 100 ℃, 0.023 ℃ | I te 100 ℃, 0.020 ℃ | |
| I te 300 ℃, 0.027 ℃ | I te 300 ℃, 0.027 ℃ | I te 300 ℃, 0.032 ℃ | I te 300 ℃, 0.029 ℃ | |
| I600 ℃, 0.042 ℃ | I te 600 ℃, 0.043 ℃ | |||
| Whakatau | 0.0001℃ | |||
Te ine ine pāmahana me nga thermocouples whakarewa maitai
| Tauira | S | R | B |
| Papatono | |||
| Tauine Raraunga | 100.000 ℃ ~ 1768.000 ℃ | 250.000 ℃ ~ 1820.000 ℃ | |
| PR291, PR293 raupapa kotahi tau tika | 300℃,0.035℃ | 600℃,0.051℃ | |
| 600℃,0.042℃ | 1000℃,0.045℃ | ||
| 1000℃,0.050℃ | 1500℃,0.051℃ | ||
| Whakatau | 0.001℃ | ||
Tuhipoka: Ko nga hua o runga ake nei kaore e uru ki te hapa utu CJ.
Te ine ine pāmahana ki te turanga whakarewa thermocouples
| Tauira | K | N | J | E | T |
| Papatono | |||||
| Tauine Raraunga | -100.000 ℃ ～ 1300.000 ℃ | -200.000 ℃ ～ 1300.000 ℃ | -100.000 ℃ ~ 900.000 ℃ | -90.000 ℃ ～ 700.000 ℃ | -150.000 ℃ ~ 400.000 ℃ |
| PR291, PR293 raupapa kotahi tau tika | 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℃ | ||
| Whakatau | 0.001℃ | ||||
Tuhipoka: Ko nga hua o runga ake nei kaore e uru ki te hapa utu CJ.
Ko nga whakaritenga hangarau mo te utu CJ thermocouple i hangaia
| Papatono | PR293A | PR293B |
| Tauine Raraunga | -10.00 ℃ ~ 40.00 ℃ | |
| Kotahi tau te tika | 0.2 ℃ | |
| Whakatau | 0.01 ℃ | |
| Tau hongere | 5 | 2 |
| Te rereketanga nui i waenga i nga hongere | 0.1℃ | |
