Ana wela Microhm Nanovolt moʻo PR293
Hoʻonā kiʻekiʻe o 7 1/2
Hoʻohuihui thermocouple CJ compensator
Nā kahawai ana he nui
ʻO nā ana wela microhm moʻo PR291 a me nā ana wela microhm moʻo PR293 he mau mea ana pololei kiʻekiʻe i hoʻolālā kūikawā ʻia no ka metrology mahana. He kūpono lākou no nā hana he nui, e like me ke ana ʻana o ka ʻikepili mahana o ka sensor mahana a i ʻole ka ʻikepili uila, ka hoʻāʻo like ʻana o ka mahana o nā umu calibration a i ʻole nā ʻauʻau, a me ka loaʻa ʻana o nā hōʻailona mahana a me ka hoʻopaʻa ʻana o nā kahawai he nui.
Me ka ʻoi aku ka maikaʻi o ka hoʻonā ana ma mua o 7 1/2, i hoʻohālikelike ʻia me nā multimeter kikohoʻe kiʻekiʻe maʻamau, i hoʻohana nui ʻia i ka metrology mahana no ka manawa lōʻihi, nui nā hoʻolālā i hoʻomaikaʻi ʻia e pili ana i ka laulā, ka hana, ka pololei, a me ka maʻalahi o ka hoʻohana e hoʻolilo i ke kaʻina hoʻoponopono mahana i ʻoi aku ka pololei, ka maʻalahi a me ka wikiwiki.
Nā hiʻohiʻona
Ke ana ʻana o ka ʻike o 10nV / 10μΩ
ʻO ka hoʻolālā holomua o ka mea hoʻonui walaʻau ultra-low a me ka module lako mana ripple haʻahaʻa e hōʻemi nui ana i ka walaʻau heluhelu o ka loop hōʻailona, e hoʻonui ana i ka ʻike heluhelu i 10nV / 10uΩ, a e hoʻonui pono ana i nā helu hōʻike pono i ka wā o ke ana ʻana o ka mahana.
Kūlana kūpaʻa makahiki maikaʻi loa
ʻO nā ana wela moʻo PR291/PR293, e hoʻohana ana i ke kumumanaʻo ana o ka lakio a me nā resistors maʻamau i kūkulu ʻia i loko, he haʻahaʻa loa ko lākou coefficient mahana a me ke kūpaʻa makahiki maikaʻi loa. Me ka hoʻohana ʻole ʻana i ka hana kuhikuhi mahana mau, hiki ke ʻoi aku ka maikaʻi o ke kūpaʻa makahiki o ka moʻo holoʻokoʻa ma mua o ka multimeter kikohoʻe 7 1/2 i hoʻohana pinepine ʻia.
ʻO ka mīkini nānā walaʻau haʻahaʻa multi-channel i hoʻohui ʻia
Ma waho aʻe o ke kahawai mua, aia he 2 a i ʻole 5 mau hoʻonohonoho kūʻokoʻa o nā kikowaena hoʻāʻo hana piha i hoʻohui ʻia ma ka panela hope e like me nā hiʻohiʻona like ʻole i nā ana wela moʻo PR291/PR293. Hiki i kēlā me kēia kahawai ke hoʻonohonoho kūʻokoʻa i ke ʻano hōʻailona hoʻāʻo, a he kūlike kiʻekiʻe loa ma waena o nā kahawai, no laila hiki ke hana ʻia ka loaʻa ʻana o ka ʻikepili multi-channel me ka ʻole o nā kuapo waho. Eia kekahi, hōʻoia ka hoʻolālā haʻahaʻa haʻahaʻa ʻaʻole e lawe mai nā hōʻailona i hoʻopili ʻia ma o nā kahawai i ka walaʻau heluhelu hou aʻe.
Ka uku CJ kiʻekiʻe
He mea nui ke kūpaʻa a me ka pololei o ka mahana CJ i ke ana ʻana o nā thermocouples kiʻekiʻe. Pono e hoʻohui ʻia nā mika kikohoʻe kiʻekiʻe i hoʻohana pinepine ʻia me nā lako uku CJ kūikawā no ke ana ʻana o ka thermocouple. Ua hoʻohui ʻia ka module uku CJ kiʻekiʻe i hoʻolaʻa ʻia i loko o nā ana wela PR293, no laila hiki ke ʻike ʻia ka hewa CJ o ke kahawai i hoʻohana ʻia ma mua o 0.15 ℃ me ka ʻole o nā peripherals ʻē aʻe.
Nā hana metrology mahana waiwai
He mea hoʻāʻo kūikawā nā ana wela moʻo PR291/PR293 i hana kūikawā ʻia no ka ʻoihana metrology mahana. ʻEkolu mau ʻano hana o ka loaʻa ʻana, ka hahai ʻana i hoʻokahi ala, a me ke ana ʻana i ka ʻokoʻa o ka mahana, kahi e hiki ai i ke ʻano ana ʻokoʻa o ka mahana ke kālailai i ke ʻano like o ka mahana o nā ʻano lako mahana mau āpau.
Ke hoʻohālikelike ʻia me ka multimeter kikohoʻe kuʻuna, ua hoʻohui ʻia kahi pae 30mV no ke ana ʻana i nā thermocouples ʻano-S a me kahi pae 400Ω no ke ana ʻana o ke kūpaʻa platinum PT100. A me nā polokalamu hoʻololi i kūkulu ʻia no nā mea ʻike mahana like ʻole, hiki ke kākoʻo ʻia nā ʻano mea ʻike like ʻole (e like me nā thermocouples maʻamau, nā thermometers kūpaʻa platinum maʻamau, nā thermometers kūpaʻa platinum ʻoihana a me nā thermocouples hana), a hiki ke kuhikuhi ʻia nā ʻikepili palapala hōʻoia a i ʻole nā ʻikepili hoʻoponopono e hahai i ka mahana o nā hopena hoʻāʻo.
Hana loiloi ʻikepili
Ma waho aʻe o nā ʻikepili hoʻāʻo like ʻole, hiki ke hōʻike ʻia nā pihi a me ka mālama ʻikepili, ka nui o ka ʻikepili manawa maoli / palena iki / awelika, hiki ke helu ʻia nā ʻano ʻikepili paʻa o ka mahana, a hiki ke hōʻailona ʻia ka ʻikepili kiʻekiʻe a me ka palena iki e hoʻomaʻamaʻa i ka nānā ʻikepili intuitive ma kahi hoʻāʻo.
Hoʻolālā lawe lima
ʻO nā mika kikohoʻe kikoʻī kiʻekiʻe i hoʻohana pinepine ʻia i nā keʻena hoʻokolohua he nui a ʻaʻole lawe lima. I ka hoʻohālikelike ʻana, ʻoi aku ka liʻiliʻi o ka nui a me ke kaumaha o nā ana wela moʻo PR291/PR293, kahi mea kūpono no ka hoʻāʻo ʻana i ka mahana kiʻekiʻe ma nā ʻano wahi like ʻole. Eia kekahi, ʻo ka hoʻolālā ʻana o ka pākahiko lithium nui i kūkulu ʻia e maʻalahi ai ke kaʻina hana.
Papa koho kumu hoʻohālike
| PR291B | PR293A | PR293B | |
| Hoʻohālike Hana | |||
| ʻAno hāmeʻa | Ana wela Microhm | Ana wela microhm Nanovolt | |
| Ana kū'ē | ● | ||
| Ana hana piha | ● | ● | |
| Helu o ke kahawai hope | 2 | 5 | 2 |
| Kaumaha | 2.7 kg (me ka ʻole o ka mea hoʻoili) | 2.85kg (me ka ʻole o ka mea hoʻoili) | 2.7kg (me ka ʻole o ka mea hoʻoili) |
| Ka lōʻihi o ka pākaukau | ≥6 hola | ||
| Ka manawa hoʻomehana | Loaʻa ma hope o 30 mau minuke o ka hoʻomehana ʻana | ||
| Ana | 230mm × 220mm × 105mm | ||
| Ka nui o ka pale hōʻike | Pale kala TFT 7.0 ʻīniha papa ʻoihana | ||
| Kaiapuni hana | -5 ~ 30 ℃, ≤80% RH | ||
Nā kikoʻī uila
| Pae | Pākuʻi ʻikepili | Hoʻoholo | Pololei hoʻokahi makahiki | Ka helu mahana |
| (ka pae heluhelu ppm) | （5℃～35℃） | |||
| (heluhelu ppm + pae ppm)/℃ | ||||
| 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 |
Nānā 1: Ke hoʻohana nei i ke ʻano ana ʻehā-uea e ana i ke kūʻē: ʻo ke au hoʻonāukiuki o ka pae 10KΩ he 0.1mA, a ʻo ke au hoʻonāukiuki o nā pae kūʻē ʻē aʻe he 1mA.
Nānā 2: ʻO ka hana ana o kēia manawa: ʻo ke kū'ē ʻike o kēia manawa he 10Ω.
Nānā 3: ʻO ka mahana o ke kaiapuni i ka wā o ka hoʻāʻo ʻana he 23℃±3℃.
Ke ana ʻana i ka mahana me nā ana wela kū'ē platinum
| Hoʻohālike | SPRT25 | SPRT100 | Pt100 | Pt1000 |
| Polokalamu | ||||
| Pākuʻi ʻikepili | -200.0000 ℃ ～ 660.0000 ℃ | -200.0000 ℃ ～ 740.0000 ℃ | -200.0000 ℃ ～ 800.0000 ℃ | |
| ʻO ka pololei o hoʻokahi makahiki o ka moʻo PR291/PR293 | Ma -200 ℃, 0.004 ℃ | Ma -200 ℃, 0.005 ℃ | ||
| Ma 0℃, 0.013℃ | Ma 0℃, 0.013℃ | Ma 0℃, 0.018℃ | Ma 0℃, 0.015℃ | |
| Ma 100 ℃, 0.018 ℃ | Ma 100 ℃, 0.018 ℃ | Ma 100 ℃, 0.023 ℃ | Ma 100 ℃, 0.020 ℃ | |
| Ma 300 ℃, 0.027 ℃ | Ma 300 ℃, 0.027 ℃ | Ma 300 ℃, 0.032 ℃ | Ma 300 ℃, 0.029 ℃ | |
| Ma 600℃, 0.042℃ | Ma 600 ℃, 0.043 ℃ | |||
| Hoʻoholo | 0.0001℃ | |||
Ke ana ʻana o ka mahana me nā thermocouples metala hanohano
| Hoʻohālike | S | R | B |
| Polokalamu | |||
| Pākuʻi ʻikepili | 100.000 ℃ ～ 1768.000 ℃ | 250.000 ℃ ～ 1820.000 ℃ | |
| PR291, PR293moʻo pololei hoʻokahi makahiki | 300℃,0.035℃ | 600℃,0.051℃ | |
| 600℃,0.042℃ | 1000℃,0.045℃ | ||
| 1000℃,0.050℃ | 1500℃,0.051℃ | ||
| Hoʻoholo | 0.001℃ | ||
Nānā: ʻAʻole i hoʻokomo ʻia ka hewa uku CJ i nā hopena i luna.
Ke ana ʻana o ka mahana me nā thermocouples metala kumu
| Hoʻohālike | K | N | J | E | T |
| Polokalamu | |||||
| Pākuʻi ʻikepili | -100.000 ℃ ～ 1300.000 ℃ | -200.000 ℃ ～ 1300.000 ℃ | -100.000 ℃ ～ 900.000 ℃ | -90.000℃ ～ 700.000 ℃ | -150.000 ℃ ～ 400.000 ℃ |
| PR291, PR293series pololei hoʻokahi makahiki | 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℃ | ||
| Hoʻoholo | 0.001℃ | ||||
Nānā: ʻAʻole i hoʻokomo ʻia ka hewa uku CJ i nā hopena i luna.
Nā kikoʻī loea o ka uku pānaʻi thermocouple CJ i kūkulu ʻia
| Polokalamu | PR293A | PR293B |
| Pākuʻi ʻikepili | -10.00 ℃ ～ 40.00 ℃ | |
| Pololei hoʻokahi makahiki | 0.2 ℃ | |
| Hoʻoholo | 0.01 ℃ | |
| Helu o nā kahawai | 5 | 2 |
| ʻOkoʻa loa ma waena o nā kahawai | 0.1℃ | |
