ZDJ-4B Laboratory Instrument Automatic Potential Titrator
ZDJ-4B Laboratory Instrument Automatic Potential Titrator
Muaj nuj nqi
Cov hom titration suav nrog ua ntej-titration, preset kawg point titration, hom titration, titration dawb paug thiab phau ntawv titration. Cov electrodes sib txawv tuaj yeem sib xyaw nrog lub ntsuas ntsuas kom ua cov titration sib txawv nrog rau cov kua qaub thiab alkali titration, oxidation -txo titration, nag lossis daus titration, complexometric titration thiab tsis yog -aqueous titration. Cov titration saum toj no yog tsim los rau hauv tshwj xeeb titration hom xws li ua ntej -titration, preset kawg point titration, titration dawb paug los yog phau ntawv titration. Lub meter tuaj yeem sib txuas lus nrog software. Titration nkhaus tuaj yeem tso tawm hauv lub computer kom nce tus nqi ntxiv ntawm lub 'meter'.
Tech cov ntaub ntawv
1. pH: (000-14.00) pH;
mV: (-1800.0-1800.0)mV;
Kub: (-5.{2}}-105.0 degree .
2．Resolution:
pH: {{0}} 01 pH; mV: 0.1mV; Kub: 0.1 degree.
3. txheeb ze qhov tseeb:
pH: ±{{0}}.01pH±1 bit; mV: ±0.03 percent Full Scale; Temp:±0.3 degree ;
4. Burette volume accuracy 10mlburette:±0.025ml; 20mlburette:±0.035ml.
5. Burette filling solution speed:55±10s(When the burette is in full scale)
6. Reproducibility of titration analysis:0.2％.
7. Relative reproducibility: Tsawg dua los yog sib npaug rau 0.2mV.
8. Relative stability:±0.3 mV±1 bit/3h.9.Sensitivity of controlling titration:±2mV.
Kev tu
Ø Keep the sockets of the meter clean and dry. Keep them away from acidity, alkaline, salt solution and also keep them damp-proof to ensure insulation and high input impedance performance of the meter.
Ø When the meter is not used, insert Q9 short circuit plug into the socket of measuring electrode to prevent if from dust and steam.
Ø When the meter is used in the place with higher humidity, dry the plug of the electrode with clean gauze first.
Ø Often clean the whole burette with distilled water, especially the titrant which produces sediment or crystal (eg: AgNO3), clean the burette in time after it is used.
Ø When using perchloric acid Acetic acid as the titrant, keep the ambient temperature higher than 16 degree . Otherwise it will produce crystal, and damage the valve.
Cov lus daws teeb meem
Tus lej | Ua tsis tiav hom | Ua tsis tiav | Kev daws |
1 | Tsis muaj zaub tom qab pib- nce | a. Lub hwj chim tawm. b. Lub fuse puas lawm. | a.Saib lub hwj chim b. Hloov lub fuse ntawm lub tib hom |
2 | mV ntsuas tsis raug. | a.Qhov kev ua haujlwm ntawm electrode poob qis. b. Lub luv luv Circuit Court plug tsis zoo. | a. Hloov cov electrode tshiab b. Hloov lub Q9 luv circuit plug. |
3 | Kev ntsuas pH tsis raug. | a.Same as the above b.Same as the above c.Lub qhov (socket) electrode yog teem yuam kev. | a.Same as the above b.Same as the above c.Tsim qhov tseeb electrode qhov (socket) raws li 6.1. |
4 | Lub tshuab luam ntawv tsis ua haujlwm lossis ua haujlwm tsis raug | a.Lub tshuab luam ntawv tsis txuas nrog lub hwj chim b.Lub tshuab luam ntawv kab tsis txuas c.Lub tshuab luam ntawv yog teem los ntawm tsis ncaj ncees lawm d.Lub tshuab luam ntawv raug xaiv yuam kev. | a. Txuas lub tshuab luam ntawv fais fab b. Txuas lub tshuab luam ntawv kab c.Tsim hom tshuab luam ntawv kom raug raws 6.4. d. Hloov lub tshuab luam ntawv. |
5 | Pre-titraion nrhiav tsis tau qhov kawg | a. Qhov kawg taw tes dhia me dhau. b.Lub titrant lossis qauv tsis raug. c.Qhov kawg point ntim yog me me. d.Cov electrode tsis raug xaiv. | a.Set the jump grade to 'small' according to 6.7.2. b.Replace the titrant or to sample the correct solution. c.Change the mode to 'blank titration' d. Xaiv electrode kom raug. |
6 | Ua ntej-titration tau pom qhov kawg cuav taw tes | Kev teeb tsa ua ntej -titration parameter tsis haum. | Set the jump grade to 'large' according to 6.7.2. |
7 | Hom titration tsis yog lawm ib. Nrhiav qhov tsis tseeb qhov kawg b. Titration tshwm sim yog 0 000ml c. Can‟t find end taw tes | a.Pre-titration tau pom qhov kawg qhov tseeb. b.Lub qhov (socket) electrode raug xaiv tsis raug. c.Cov hom xaiv yuam kev. | a.Tau qhov cuav kawg taw tes raws li 15.2.4. b. Teem kom raug electrode socket raws li 6.1. c.Xaiv qhov tseeb titration hom |
8 | Preset end point titration is wrong a.When the end points are over two, titration cannot be performed after set parameter. b. Cov ntsuas ntsuas „Pre-controlled point setup is wrong‟ during titration. | a.Qhov kev teeb tsa tsis raug. b.Qhov kev teeb tsa tsis raug lossis lub qhov (socket) electrode yog teem tsis raug. | a.Tsim qhov tseeb parameter raws li 13.3. b. Teeb qhov raug ua ntej-tswj taw tes raws li 13.3. c.Tsim lub qhov (socket) electrode kom raug raws li 6.1 |
9 | The stirrer doesn't work. | a.Cov stirrer tsis txuas. b.Lub stirrer yog teem tsis ncaj ncees lawm. c.Lub stirrer puas lawm. d.Lub nplawm bar tsis tau muab tso rau hauv lub beaker. | a. Txuas lub stirrer raws li 4.1f b. Ceev tus nqi nplawm raws li tshooj 7. c. Hloov lub stirrer. d. Muab lub nplawm nplawm. |
10 | Muaj npuas nyob rau hauv lub raj filling. | Leakage tshwm sim nyob rau hauv kev sib tshuam ntawm cov yeeb nkab filling. | Nruab cov yeeb nkab filling raws li 4.1 c. |
11 | Mechanical feem tsis ua haujlwm li qub. | Burette tsis raug ntsia kom raug. | Nruab lub burette raws li 4.1b. |
12 | Electrode yog calibrated los ntawm yuam kev. | a.pH electrode kev ua haujlwm tsis zoo. b.Buffer yog npaj tsis raug. c.Lub qhov (socket) eletrode raug xaiv yuam kev. | a. Hloov pH electrode. b. Npaj qhov tsis rov qab. c.Tsim qhov tseeb electrode qhov (socket) raws li 6.1. |
Cim npe nrov: ZDJ-4B Laboratory Instrument Tsis Siv Neeg Muaj Peev Xwm Titrator, Tuam Tshoj, lwm tus neeg, manufacturers, nqe, kev muag khoom, digital automatic potentiometric titration apparatus, Tsis siv neeg Potentiometric pH/mV Titration System, Tsis Siv Neeg Muaj Peev Xwm Titrator, Tsis Siv Neeg Titration rau Lab, phau ntawv titration khoom, ZDJ4B auto titrator , Tsis Siv Neeg Muaj Peev Xwm Titration System, muaj peev xwm titration teeb, tsis siv neeg titration system
Xa kev nug
