PR1231 / PR1232 Txheem Platinum-10% Rhodium / Platium Thermocouple
PR1231 / PR1232 Txheem Platinum-10% Rhodium / Platium Thermocouple
Part 1 Txheej txheem cej luam
Qib thawj thiab qib thib ob tus qauv platinum-iridium 10-platinum thermocouples uas muaj qhov tseeb siab zoo lub cev thiab tshuaj lom neeg, zoo oxidation tsis kam ntawm qhov kub thiab txias, zoo stability thiab reproducibility ntawm thermoelectromotive quab yuam.Yog li ntawd, nws yog siv raws li tus qauv ntsuas ntsuas nyob rau hauv (419.527 ~ 1084.62) ° C, nws kuj yog siv rau qhov kub thiab txias kis thiab precision kub ntsuas nyob rau hauv qhov kub thiab txias.
| Parameter index | Thawj qib platinum-iridium 10-platinum thermocouples | Qib thib ob platinum-iridium 10-platinum thermocouples |
| Qhov zoo thiab qhov tsis zoo | Qhov zoo yog platinum-rhodium alloy (platinum 90% rhodium 10%), qhov tsis zoo yog platinum ntshiab | |
| electrode | Ob lub electrodes txoj kab uas hla yog 0.5-0.015 Nwsmm ntev yog tsis tsawg tshaj li 1000mm | |
| Qhov yuav tsum tau muaj ntawm lub thermal electromotive force ntsuas qhov kub thiab txias ntawm Cu point (1084.62 ℃) Al point (660.323 ℃) Zn point (419.527 ℃) thiab siv qhov sib txuas kub yog 0 ℃ | E (tCu) = 10.575 ± 0.015mVE(tAl) = 5.860+0.37 [E(tCu10.575] ± 0.005mVE(tZn) = 3.447+0.18 [E(tCu10.575] ± 0.005mV | |
| Stability ntawm Thermo-electromotive quab yuam | 3m vwm | 5mv ua |
| Kev hloov pauv txhua xyoo Thermo-electromotive quab yuam ntawm Cu point (1084.62 ℃) | ≦5μV | ≦10μV |
| Ua hauj lwm kub ntau yam | 300 ~ 1100 ℃ | |
| Insulating lub tes tsho | Ob lub qhov porcelain raj lossis corundum tubeOuter txoj kab uas hla (3 ~ 4) hli, qhov taub (0.8 ~ 1.0) hli, ntev (500 ~ 550) hli | |
tus qauv platinum-iridium 10-platinum thermocouples yuav tsum tau ua raws li lub teb chaws tus txheej txheem xa khoom, cov txheej txheem pov thawj hauv tebchaws yuav tsum tau ua.Thawj qib tus qauv platinum-iridium 10-platinum thermocouples tuaj yeem siv los ntsuas qib thib ob, Ⅰ qib, Ⅱ qib platinum-iridium 10-platinum thermocouples thiab Ⅰ qib puag hlau thermocouples;Qib thib ob platinum-iridium 10-platinum thermocouples tsuas yog siv los ntsuas Ⅱ qib puag hlau thermocouples
| National verification code | National pov thawj lub npe |
| JJG75-1995 | Txheem platinum-iridium 10-platinum thermocouples calibration specification |
| JJG141-2013 | Ua hauj lwm muaj nuj nqis hlau thermocouples calibration specification |
| JJF1637-2017 | Base hlau thermocouple calibration specification |
1. Lub sijhawm ntsuas tus qauv thermocouple yog 1 xyoo, thiab txhua xyoo tus qauv thermocouple yuav tsum tau ntsuas los ntawm lub tuam tsev metrology.
2. Kev tswj xyuas qhov tsim nyog yuav tsum tau ua raws li kev siv.
3. Qhov chaw ua haujlwm ntawm tus qauv thermocouple yuav tsum huv si kom tsis txhob muaj kev sib kis ntawm tus qauv thermocouple.
4. Tus qauv thermocouple yuav tsum tau muab tso rau hauv qhov tsis muaj kuab paug thiab tiv thaiv kev ntxhov siab ntawm txhua yam.
1. Lub raj rwb thaiv tsev tsis tuaj yeem siv thaum kub kub roasting.Tus thawj rwb thaiv tsev raj yog siv tom qab nruj tu thiab kub kub roasting.
2. Lub raj rwb thaiv tsev tsis quav ntsej qhov zoo thiab qhov tsis zoo, uas yuav ua rau lub platinum ncej tsis huv thiab cov khoom siv hluav taws xob muaj peev xwm txo qis.
3. Randomly tus txheej txheem thermocouple rwb thaiv tsev raj nrog pheej yig xaim yuav kis tau tus qauv thermocouple, thiab cov raj hlau tiv thaiv yuav tsum tau siv rau kev pov thawj ntawm lub hauv paus hlau thermocouple.
4. Cov txheej txheem thermocouple tsis tuaj yeem muab tso rau hauv qhov kub thiab txias, thiab tsis tuaj yeem raug tshem tawm ntawm lub qhov cub hluav taws xob.Tam sim ntawd-kub thiab txias yuav cuam tshuam rau cov thermoelectric kev ua haujlwm
5.Raws li qhov xwm txheej ib txwm muaj, lub qhov cub pov thawj rau cov khoom siv hluav taws xob zoo tshaj plaws thiab lub hauv paus hlau thermocouple yuav tsum raug cais nruj me ntsis;Yog tias nws tsis yooj yim sua, lub raj huv ceramic los yog corundum raj (inch txog 15mm) yuav tsum tau muab tso rau hauv lub tshuab hluav taws xob rau kev tiv thaiv cov hlau tseem ceeb Thermocouples thiab cov txheej txheem thermocouples los ntawm lub hauv paus hlau thermocouple pollution.
