• Inzwa ye-PH

Inzwa ye-PH

Incazelo emfushane:

Inzwa ye-pH yenhlabathi yesizukulwane esisha ye-PHTRSJ ixazulula ukushiyeka kwe-pH yenhlabathi yendabuko edinga amathuluzi wokubonisa ochwepheshe, ukulinganisa okuyisicefe, ukuhlanganiswa okunzima, ukusetshenziswa kwamandla okuphezulu, intengo ephezulu, kanye nobunzima bokuthwala.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Umyalelo Womkhiqizo

Inzwa ye-pH yenhlabathi yesizukulwane esisha ye-PHTRSJ ixazulula ukushiyeka kwe-pH yenhlabathi yendabuko edinga amathuluzi wokubonisa ochwepheshe, ukulinganisa okuyisicefe, ukuhlanganiswa okunzima, ukusetshenziswa kwamandla okuphezulu, intengo ephezulu, kanye nobunzima bokuthwala.

Inzwa entsha ye-pH yenhlabathi, eqaphela ukuqapha kwesikhathi sangempela ku-inthanethi kwe-pH yenhlabathi.
Yamukela i-dielectric eqinile ethuthuke kakhulu kanye nendawo enkulu ye-polytetrafluoroethylene liquid junction, okungelula ukuyivimba futhi ingalungiseki.
Ukuhlanganiswa okuphezulu, usayizi omncane, ukusetshenziswa kwamandla okuphansi, ukuthwala kalula.
Bona izindleko eziphansi, intengo ephansi nokusebenza okuphezulu.
Ukuhlanganiswa okuphezulu, impilo ende, ukunethezeka nokuthembeka okuphezulu.
Ukusebenza okulula.
Sekela ukuthuthukiswa kwesibili.
I-electrode isebenzisa ikhebula yekhwalithi ephezulu yomsindo ophansi, engenza ubude bokukhipha isignali bufike kumamitha angu-20 ngaphandle kokuphazanyiswa.

Lo mkhiqizo ungasetshenziswa kakhulu emikhakheni yokuchelela ngenkasa yezolimo, ingadi yezimbali, amadlelo emathafeni, ukuhlola umhlabathi ngokushesha, ukutshalwa kwezitshalo, ukuhlolwa kwesayensi nokunye.

Ipharamitha ye-Technique

Ibanga lokulinganisa 0-14pH
Ukunemba ± 0.1pH
Isixazululo 0.01pH
Isikhathi sokuphendula <10 amasekhondi (emanzini)
Imodi yokunikezwa kwamandla I-DC 12V
I-DC 24V
Okunye
Ifomu lokukhiphayo Amandla kagesi: 0 ~ 5V
Okwamanje: 4 ~ 20mA
RS232
RS485
Okunye
Ubude bomugqa wensimbi Okujwayelekile: 5 m
Okunye
Indawo yokusebenza Izinga lokushisa 0 ~ 80 ℃
Ukuswakama: 0 ~ 95% RH
Ukusetshenziswa kwamandla 0.2W
Impahla yezindlu igobolondo lepulasitiki elingangeni manzi
Usayizi we-Transmitter 98 * 66 * 49mm

Ifomula yokubala

Uhlobo lwe-voltage (0 ~ 5V okukhiphayo):
D = V / 5 × 14
(D inani le-pH elilinganisiwe, 0.00pH≤D≤14.00pH, V i-voltage ephumayo (V))

Uhlobo lwamanje (4 ~ 20mA okukhiphayo):
D = (I-4) / 16 × 14
(D inani le-pH elilinganiselwe, 0.00pH≤D≤14.00pH, mina ngingumphumela wamanje (mA))

Indlela Yezintambo

(1) Uma ifakwe isiteshi sezulu esikhiqizwe yinkampani yethu, xhuma ngqo inzwa kusixhumi esibonakalayo esihambelanayo esiteshini sezulu usebenzisa ulayini wezinzwa.
(2) Uma i-transmitter ithengwa ngokwehlukana, ukulandelana kwekhebula komthumeli kuthi:

Umbala womugqa

Oisignali yokuphuma

Uhlobo lwe-voltage

Uhlobo lwamanje

Ukuxhumana

uhlobo

Okubomvu

Amandla+

Amandla+

Amandla+

Okumnyama (okuluhlaza)

Indawo yamandla

Indawo yamandla

Indawo yamandla

Okuphuzi

Isignali ye-voltage

Isiginali yamanje

A+/TX

Okuluhlaza okwesibhakabhaka

 

 

B-/RX

Indlela Yezintambo

Inzwa ye-PH1

I-MODBUS-RTU Protocol

1.Ifomethi ye-serial
I-data bits 8 bits
Misa kancane 1 noma 2
Hlola Idijithi Ayikho
Isilinganiso se-Baud 9600 Isikhawu sokuxhumana okungenani singu-1000ms
2.Ifomethi yokuxhumana
[1] Bhala ikheli ledivayisi
Thumela: 00 10 Ikheli CRC (5 bytes)
Izimbuyiselo: 00 10 CRC (4 bytes)
Qaphela: 1. Ingxenye yekheli lomyalo wekheli lokufunda nokubhala kufanele libe ngu-00.
2. Ikheli liyibhayithi elingu-1 futhi ububanzi bungu-0-255.
Isibonelo: Thumela 00 10 01 BD C0
Ibuyisela 00 10 00 7C
[2] Funda ikheli ledivayisi
Thumela: 00 20 CRC (4 bytes)
Izimbuyiselo: 00 20 Adress CRC (5 bytes)
Incazelo: Ikheli ngu-1 byte, ububanzi bungu-0-255
Isibonelo: Thumela u-00 20 00 68
Ibuyisela 00 20 01 A9 C0
[3] Funda idatha yesikhathi sangempela
Thumela: Ikheli 03 00 00 00 01 XX XX
Qaphela: njengoba kukhonjisiwe ngezansi:

Ikhodi

Incazelo yomsebenzi

Qaphela

Ikheli

Inombolo yesiteshi (ikheli)

 

03

Fikhodi yokukhipha

 

00 00

Ikheli lokuqala

 

00 01

Funda amaphuzu

 

XX XX

CRC Ikhodi yokuhlola, ngaphambili iphansi phezulu kamuva

 

Ukubuyisela: Ikheli 03 02 XX XX XX XX

Ikhodi

Incazelo yomsebenzi

Qaphela

Ikheli

Inombolo yesiteshi (ikheli)

 

03

Fikhodi yokukhipha

 

02

Funda iyunithi byte

 

XX XX

Idatha (phezulu ngaphambili, iphansi ngemva)

Hex

XX XX

Ikhodi ye-CRCCheck

 

Ukuze ubale ikhodi ye-CRC:
1.Irejista ye-16-bit esethiwe ngaphambilini ithi FFFF nge-hexadecimal (okungukuthi, zonke zingu-1).Shayela le rejista ngerejista ye-CRC.
2.XOR idatha yokuqala ye-8-bit enebhithi engezansi yerejista ye-CRC engu-16 futhi ifake umphumela kurejista ye-CRC.
3. Shifta okuqukethwe kwerejista kwesokudla ngebhithi eyodwa (ubheke kwencane), gcwalisa ibhithi ephezulu kakhulu ngo-0, bese uhlola ephansi kakhulu.
4. Uma ibhithi ebaluleke kakhulu ingu-0: phinda isinyathelo sesi-3 (shintsha futhi), uma okuncane okubalulekile kungu-1: irejista ye-CRC ifakwe ku-XORed nge-polynomial A001 (1010 0000 0000 0001).
5. Phinda izinyathelo 3 no-4 kuze kube izikhathi ezingu-8 kwesokudla, ukuze yonke idatha ye-8-bit icutshungulwe.
6. Phinda izinyathelo 2 kuya kwezi-5 ukuze uthole ukucubungula kwedatha okungu-8-bit.
7. Irejista ye-CRC ekugcineni itholakele ikhodi ye-CRC.
8. Uma umphumela we-CRC ufakwa ohlakeni lolwazi, amabhithi aphezulu naphansi ayashintshaniswa, bese kuthi kancane kuqala.

Isifunda se-RS485

Inzwa ye-PH2

Imiyalo yokusetshenziswa

1.Lapho inzwa iphuma efektri, i-probe inikezwa isembozo sokuvikela esisobala, futhi uketshezi olwakhelwe ngaphakathi oluvikelayo luvikela uphenyo.Uma usebenzisa, sicela ususe ikhava eyisivikelo, ulungise ithange lokuhlunga kanye nenzwa, bese usebenzisa intambo yekhebula enamathiselwe ukugoqa isihlungi ethangini lesihlungi.Ukuvimbela ukuthintana okuqondile phakathi kwenhlabathi kanye ne-probe futhi kulimaze i-probe.Ekusetshenzisweni kwangempela, sicela uqinisekise ukuthi i-trough yokuhlunga nesihlungi kuxhumeke ngokuqinile.Ungawususi umkhombe wokuhlunga kanye nesihlungi.Faka i-probe ngqo emhlabathini ukugwema ukwenza umonakalo we-probe futhi ungalungiseki.
2. Faka ingxenye ye-probe iqonde emhlabathini.Ukujula kwe-probe kumele okungenani kuhlanganiswe isihlungi.Ngaphansi kwezimo ezijwayelekile, i-pH esemoyeni iphakathi kuka-6.2 no-7.8.
3.Ngemuva kokungcwaba inzwa, uthele inani elithile lamanzi emhlabeni ukuze ulinganiswe, ulinde imizuzu embalwa, bese ulinda ukuthi amanzi angene ku-probe, khona-ke ungafunda idatha kuthuluzi.Ngaphansi kwezimo ezijwayelekile, inhlabathi ayithathi hlangothi futhi i-pH iphakathi kwe-Around 7, inani langempela le-pH lenhlabathi ezindaweni ezahlukene lizohluka, kufanele kunqunywe ngokuvumelana nesimo sangempela.
4.Umsebenzisi angasebenzisa ama-reagents e-pH angu-3 anamathiselwe futhi alungiselele ngokwendlela yokumisa ukuze ahlole ukuthi ukusebenza komkhiqizo kujwayelekile yini.

Izinyathelo zokuzivikela

1. Epayipini ukuze kuqinisekiswe ukuthi i-electrode elinganisiwe ivelu ye-pH kufanele igwenywe ngesikhathi sokukalwa kwamabhamuza omoya abangelwa idatha engalungile;
2. Sicela uhlole ukuthi ingabe iphakheji iphelele futhi uhlole ukuthi imodeli yomkhiqizo iyahambisana yini nokukhetha;
3. Ungaxhumi uma ukhanyisa, bese uvula ngemuva kokuhlola izintambo.
4. Ungashintshi ngokuzenzakalelayo izingxenye noma izintambo ezidayisiwe lapho umkhiqizo uphuma efekthri.
5. Inzwa iyidivayisi enembayo.Sicela ungayiqaqi uwedwa noma uthinte ingaphezulu lenzwa ngezinto ezicijile noma uketshezi olubolayo phakathi nokusetshenziswa ukuze ugweme ukulimaza umkhiqizo.
6.Sicela ugcine isitifiketi sokuqinisekisa nesitifiketi sokuvumelana, futhi usibuyisele kanye nomkhiqizo lapho ulungisa.

Ukuxazulula inkinga

1.Ukuze uthole okukhiphayo kwe-analog, isibonisi sibonisa ukuthi inani lingu-0 noma lingaphandle kobubanzi.Umqoqi angase angakwazi ukuthola ulwazi ngendlela efanele ngenxa yezinkinga zezintambo.Sicela uhlole ukuthi izintambo zilungile futhi ziqinile, futhi i-voltage yamandla ijwayelekile;
2.Uma kungezona izizathu ezingenhla, sicela uxhumane nomkhiqizi.

Isondlo

1.Isiphetho sokufakwayo kwethuluzi (isokhethi ye-electrode yokulinganisa) kufanele igcinwe yomile futhi ihlanzekile ukuze kuvinjelwe ukungena kothuli nomhwamuko wamanzi.
2. Gwema ukucwiliswa isikhathi eside kwama-electrode esixazululweni seprotheni nesisombululo se-acid fluoride, futhi ugweme ukuthintana nowoyela we-silicone.
3.Ngemuva kokusetshenziswa isikhathi eside kwe-electrode, uma umthambeka wehliswa kancane, indawo engezansi ye-electrode ingacwiliswa kusixazululo esingu-4% se-HF (hydrofluoric acid) imizuzwana emi-3 kuya kwemi-5, bese igezwa ngamanzi acwecwe bese icwiliswa. 0.1mol / L i-hydrochloric acid Vuselela i-electrode.
4.Ukuze wenze ukulinganisa kunembile, i-electrode kufanele ilinganiswe kaningi futhi igezwe ngamanzi acwecwe.
5. I-transmitter kufanele ibekwe endaweni eyomile noma ibhokisi lokulawula ukugwema ukuvuza kwamamitha noma iphutha lokulinganisa elibangelwa amaconsi amanzi afafaza noma abe manzi.


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