Thermometer ea PR293 Series Nanovolt Microhm
Qeto e nepahetseng haholo ea 7 1/2
Sesebelisoa sa ho lefella thermocouple se kopantsoeng sa CJ
Likanale tse ngata tsa litekanyo
Li-thermometer tsa PR291 series microhm le li-thermometer tsa PR293 series nanovolt microhm ke lisebelisoa tsa ho lekanya tse nepahetseng haholo tse etselitsoeng ho lekanya mocheso ka ho khetheha. Li loketse mesebetsi e mengata, joalo ka ho lekanya data ea mocheso oa sensor ea mocheso kapa data ea motlakase, teko ea ho tšoana ha mocheso oa lifono tsa ho lekanya kapa libate, le ho fumana le ho rekota letšoao la mocheso oa likanale tse ngata.
Ka qeto ea tekanyo e betere ho feta 7 1/2, ha e bapisoa le li-multimeter tsa dijithale tse akaretsang tse nepahetseng haholo, tse 'nileng tsa sebelisoa haholo ho metrology ea mocheso ka nako e telele, ho na le meralo e mengata e ntlafalitsoeng mabapi le sebaka, ts'ebetso, ho nepahala, le bonolo ba ts'ebeliso ho etsa hore ts'ebetso ea ho lekanya mocheso e nepahale haholoanyane, e be bonolo le e potlakileng.
Likaroloana
Kutloisiso ea tekanyo ea 10nV / 10μΩ
Moralo o atlehileng oa amplifier ea lerata le tlase haholo le mojule oa phepelo ea motlakase o nang le maqhubu a tlase o fokotsa lerata la ho bala la selika-likoe sa lets'oao haholo, ka hona o eketsa kutloisiso ea ho bala ho 10nV/10uΩ, 'me o eketsa ka katleho linomoro tse sebetsang tsa ponts'o nakong ea tekanyo ea mocheso.
Botsitso bo botle ba selemo le selemo
Li-thermometer tsa letoto la PR291/PR293, tse amohelang molao-motheo oa tekanyo ea karolelano le tse nang le li-resistor tse tloaelehileng tsa boemo ba litšupiso tse hahiloeng kahare, li na le coefficient e tlase haholo ea mocheso le botsitso bo botle ba selemo le selemo. Ntle le ho amohela ts'ebetso ea litšupiso tsa mocheso o sa fetoheng, botsitso ba selemo le selemo ba letoto lohle bo ntse bo ka ba betere haholo ho feta multimeter ea dijithale ea 7 1/2 e sebelisoang hangata.
Sekenara se kopantsoeng sa lerata le tlase sa likanale tse ngata
Ntle le kanale e ka pele, ho na le disete tse 2 kapa tse 5 tse ikemetseng tsa diteishene tsa teko tse sebetsang ka botlalo tse hoketsweng phanele e ka morao ho ya ka mehlala e fapaneng ya di-thermometer tsa letoto la PR291/PR293. Kanale ka nngwe e ka beha mofuta wa letshwao la teko ka boyona, mme e na le botsitso bo hodimo haholo pakeng tsa dikanale, kahoo ho bokella data ya dikanale tse ngata ho ka etswa ntle le di-switch tsa kantle. Ho feta moo, moralo wa lerata le tlase o netefatsa hore matshwao a hokahantsweng ka dikanale a ke ke a tlisa lerata le eketsehileng la ho bala.
Puseletso ea CJ e nepahetseng haholo
Ho tsitsa le ho nepahala ha mocheso oa CJ ho bapala karolo ea bohlokoa ho lekanyeng li-thermocouple tse nepahetseng haholo. Limithara tsa dijithale tse sebelisoang hangata tse nepahetseng haholo li hloka ho kopanngoa le lisebelisoa tse khethehileng tsa puseletso ea CJ bakeng sa tekanyo ea thermocouple. Mojule o inehetseng oa puseletso ea CJ e nepahetseng haholo o kenyelelitsoe ho li-thermometer tsa letoto la PR293, kahoo phoso ea CJ ea kanale e sebelisitsoeng e fetang 0.15℃ ntle le lisebelisoa tse ling tse ka sebelisoang e ka phethahala.
Mesebetsi ea metrology ea mocheso o ruileng
Li-thermometer tsa letoto la PR291/PR293 ke sesebelisoa se khethehileng sa teko se etselitsoeng indasteri ea metrology ea mocheso. Ho na le mekhoa e meraro ea ho sebetsa ea ho fumana, ho latela mokhoa o le mong, le ho lekanya phapang ea mocheso, tseo har'a tsona mokhoa oa ho lekanya phapang ea mocheso o ka sekasekang ho tšoana ha mocheso oa mefuta eohle ea lisebelisoa tsa mocheso tse sa fetoheng.
Ha ho bapisoa le multimeter ea dijithale ea setso, ho eketsoa mefuta ea 30mV ka ho khetheha bakeng sa ho lekanya li-thermocouple tsa mofuta oa S le mefuta ea 400Ω bakeng sa tekanyo ea khanyetso ea platinum ea PT100. 'Me ka mananeo a phetoho a hahiloeng kahare bakeng sa li-sensor tse fapaneng tsa mocheso, mefuta e fapaneng ea li-sensor (joalo ka li-thermocouple tse tloaelehileng, li-thermometers tse tloaelehileng tsa khanyetso ea platinum, li-thermometers tsa khanyetso ea platinum ea indasteri le li-thermocouple tse sebetsang) li ka tšehetsoa, 'me data ea setifikeiti kapa data ea tokiso e ka sebelisoa ho latela mocheso oa liphetho tsa liteko.
Mosebetsi oa tlhahlobo ea data
Ntle le lintlha tse fapaneng tsa teko, li-curve le polokelo ea data li ka bontšoa, boleng ba data ba nako ea sebele bo phahameng/bonyane/bo tloaelehileng, lintlha tse fapaneng tsa botsitso ba mocheso li ka baloa, 'me lintlha tse phahameng le tse nyane li ka tšoauoa ho nolofatsa tlhahlobo ea data e utloahalang sebakeng sa teko.
Moralo o nkehang habobebe
Limithara tsa dijithale tse nepahetseng haholo tse sebelisoang hangata lilaboratoring hangata li kholo ebile ha li nkehe habonolo. Ka lehlakoreng le leng, li-thermometer tsa letoto la PR291/PR293 li nyane ka bophahamo le boima, e leng se loketseng bakeng sa liteko tsa mocheso oa boemo bo holimo libakeng tse fapaneng tsa sebaka seo. Ho phaella moo, moralo oa betri ea lithium e hahiloeng ka hare e boetse e etsa hore ts'ebetso ea ts'ebetso e be bonolo.
Tafole ea khetho ea mohlala
| PR291B | PR293A | PR293B | |
| Mohlala oa Mosebetsi | |||
| Mofuta oa sesebelisoa | Thermometer ea Microhm | Thermometer ea Nanovolt microhm | |
| Tekanyo ea khanyetso | ● | ||
| Tekanyo e felletseng ea ts'ebetso | ● | ● | |
| Palo ea kanale e ka morao | 2 | 5 | 2 |
| Boima ba 'mele | 2.7 kg （ntle le tjhaja） | 2.85kg （ntle le tjhaja） | 2.7kg （ntle le tjhaja） |
| Nako ea betri | Lihora tse ≥6 | ||
| Nako ea ho futhumatsa | E sebetsa kamora metsotso e 30 ea ho iphuthumatsa | ||
| Tekanyo | 230mm × 220mm × 105mm | ||
| Tekanyo ea skrine ea ponts'o | Skrine ea 'mala oa TFT ea boemo ba indasteri ea lisenthimithara tse 7.0 | ||
| Tikoloho ea mosebetsi | -5～30℃，≤80%RH | ||
Litlhaloso tsa motlakase
| Sebaka | Sekala sa data | Qeto | Ho nepahala ha selemo se le seng | Koefficient ea mocheso |
| (ho bala mefuta ea ppm ka ppm) | (5℃～35℃) | |||
| (ho bala ha ppm + sebaka sa 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 |
Tlhokomeliso 1: Ho amohela mokhoa oa ho lekanya oa terata tse 'ne ho lekanya khanyetso: hona joale ea ho hlasimolla ea mefuta ea 10KΩ ke 0.1mA, 'me hona joale ea ho hlasimolla ea mefuta e meng ea khanyetso ke 1mA.
Tlhokomeliso 2: Mosebetsi oa ho lekanya hona joale: resistor ea ho lemoha hona joale ke 10Ω.
Tlhokomeliso 3: Mocheso oa tikoloho nakong ea teko ke 23℃±3℃.
Tekanyo ea mocheso ka li-thermometer tsa ho hanyetsa platinum
| Mohlala | SPRT25 | SPRT100 | Karolo ea 100 | Pt1000 |
| Lenaneo | ||||
| Sekala sa data | -200.0000 ℃ ～ 660.0000℃ | -200.0000 ℃ ～ 740.0000℃ | -200.0000 ℃ ～ 800.0000℃ | |
| Ho nepahala ha letoto la PR291/PR293 selemo se le seng | Ho -200℃, 0.004℃ | Ho -200℃, 0.005℃ | ||
| Ho 0℃, 0.013℃ | Ho 0℃, 0.013℃ | Ho 0℃, 0.018℃ | Ho 0℃, 0.015℃ | |
| Ho 100℃, 0.018℃ | Ho 100℃, 0.018℃ | Ho 100℃, 0.023℃ | Ho 100℃, 0.020℃ | |
| Ho 300℃, 0.027℃ | Ho 300℃, 0.027℃ | Ho 300℃, 0.032℃ | Ho 300℃, 0.029℃ | |
| Ka 600℃, 0.042℃ | Ho 600℃, 0.043℃ | |||
| Qeto | 0.0001℃ | |||
Tekanyo ea mocheso ka li-thermocouple tsa tšepe e ntle
| Mohlala | S | R | B |
| Lenaneo | |||
| Sekala sa data | 100.000 ℃ ～ 1768.000 ℃ | 250.000 ℃ ～ 1820.000 ℃ | |
| PR291, PR293series ho nepahala ha selemo se le seng | 300℃, 0.035℃ | 600℃, 0.051℃ | |
| 600℃, 0.042℃ | 1000℃, 0.045℃ | ||
| 1000℃, 0.050℃ | 1500℃, 0.051℃ | ||
| Qeto | 0.001℃ | ||
Hlokomela: Liphetho tse ka holimo ha li kenyelletse phoso ea puseletso ea CJ.
Tekanyo ea mocheso ka li-thermocouple tsa tšepe ea motheo
| Mohlala | K | N | J | E | T |
| Lenaneo | |||||
| Sekala sa data | -100.000 ℃ ～ 1300.000 ℃ | -200.000 ℃ ～ 1300.000 ℃ | -100.000 ℃ ～ 900.000 ℃ | -90.000℃ ～ 700.000 ℃ | -150.000 ℃ ～ 400.000 ℃ |
| Ho nepahala ha PR291、PR293series selemo se le seng | 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℃ | ||
| Qeto | 0.001℃ | ||||
Hlokomela: Liphetho tse ka holimo ha li kenyelletse phoso ea puseletso ea CJ.
Litlhaloso tsa tekheniki tsa puseletso ea CJ ea thermocouple e hahiloeng kahare
| Lenaneo | PR293A | PR293B |
| Sekala sa data | -10.00 ℃ ～ 40.00 ℃ | |
| Ho nepahala ha selemo se le seng | 0.2 ℃ | |
| Qeto | 0.01 ℃ | |
| Nomoro ea liteishene | 5 | 2 |
| Phapang e kholo lipakeng tsa liteishene | 0.1℃ | |
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