Tsau ib qho roj transmitter LCD zaub (4-20mARS485)
System configuration
Table 1 daim nqi ntawm cov ntaub ntawv rau tus qauv configuration ntawm tsau ib roj transmitter
| Standard configuration | ||
| Serial tooj | Lub npe | Lus hais |
| 1 | Gas transmitter | |
| 2 | Phau ntawv qhia | |
| 3 | Daim ntawv pov thawj | |
| 4 | Chaw taws teeb tswj | |
Thov xyuas seb cov khoom siv thiab cov khoom puas ua tiav tom qab tshem tawm.Standard configuration yog ib qho tseem ceeb accessory rau kev yuav khoom.
1.2 Qhov System Parameter
● Zuag qhia tag nrho qhov ntev: 142mm × 178.5mm × 91mm
● Nyhav: txog 1.35Kg
● Hom sensor: hom electrochemical (combustible gas yog catalytic combustion hom, txwv tsis pub)
● Tshawb nrhiav cov pa roj carbon monoxide (O2), combustible gases (Ex), cov pa phem thiab cov pa phem (O3, CO, H2S, NH3, Cl2, thiab lwm yam)
● Lub sij hawm teb: oxygen ≤ 30s;carbon monoxide ≤ 40s;combustible gas ≤ 20s;(lwm tus tso tseg)
● Ua haujlwm hom: ua haujlwm tsis tu ncua
● Ua haujlwm voltage: DC12V ~ 36V
● Cov teeb liab tso zis: RS485-4-20ma (tsim raws li cov neeg siv khoom xav tau)
● Zaub hom: Graphic LCD, Lus Askiv
● Kev ua haujlwm hom: tus yuam sij, infrared chaw taws teeb tswj
● Tswj teeb liab: 1 pawg ntawm passive hloov tso zis, qhov siab tshaj plaws load yog 250V AC 3a
● Cov haujlwm ntxiv: lub sijhawm thiab daim ntawv qhia hnub, tuaj yeem khaws 3000 + cov ntaub ntawv khaws tseg
● Qhov kub thiab txias: - 20 ℃ ~ 50 ℃
● Humidity ntau: 15% ~ 90% (RH), tsis-condensing
● Cov pov thawj tawg pov thawj No.: CE20.1671
● Cov cim pov thawj tawg: Exd II CT6
● Wiring hom: RS485 yog plaub xaim system, 4-20mA yog peb xaim
● Kev xa xov cable: txiav txim siab los ntawm kev sib txuas lus, saib hauv qab no
● Kev ncua deb: tsawg dua 1000m
● Qhov ntsuas qhov sib txawv ntawm cov pa roj carbon monoxide yog qhia hauv Table 2 hauv qab no
Rooj 2Tnws ntsuas qhov sib txawv ntawm cov pa roj
| Roj | Gas npe | Technical Performance index | ||
| Kev ntsuas ntau | Kev daws teeb meem | Tswb point | ||
| CO | Cov pa roj carbon monoxide | 0-1000 p.m | 1ppm ua | 50 ppm |
| H2S | Hydrogen sulfide | 0-100 ppm | 1ppm ua | 10 ppm |
| EX | Combustible gas | 0-100% LE | 1% LOJ | 25% LE |
| O2 | Oxygen | 0-30% vol | 0.1% vol | Tsawg 18% vol Siab 23% vol |
| H2 | Hydrogen | 0-1000 p.m | 1ppm ua | 35ppm ua |
| CL2 | Chlorine | 0-20 ppm | 1ppm ua | 2ppm ua |
| NO | Nitric oxide | 0-250 hnub | 1ppm ua | 35ppm ua |
| SO2 | Sulfur dioxide | 0-20 ppm | 1ppm ua | 5ppm ua |
| O3 | Ozone | 0-5 ppm | 0.01ppm ua | 1ppm ua |
| NO2 | Nitrogen dioxide | 0-20 ppm | 1ppm ua | 5ppm ua |
| NH3 | Ammonia | 0-200 ppm | 1ppm ua | 35ppm ua |
Nco tseg: cov cuab yeej tsuas tuaj yeem ntes tau cov roj uas tau teev tseg, thiab hom thiab ntau yam ntawm cov roj uas ntsuas tau yuav tsum raug rau cov khoom tiag.
Sab nraud qhov ntev ntawm qhov ntsuas tau pom hauv daim duab 1
Daim duab 1 sab nraud ntawm qhov ntsuas
2.1 Tsau piav qhia
Phab ntsa mounted hom: kos lub installation qhov rau ntawm phab ntsa, siv 8mm × 100mm expansion ntsia liaj qhov rooj, kho lub expansion ntsia liaj qhov rooj rau ntawm phab ntsa, nruab lub transmitter, thiab ces kho nws nrog txiv ntseej, elastic ncoo thiab tiaj tus ncoo, raws li qhia nyob rau hauv daim duab 2.
Tom qab lub transmitter yog tsau, tshem tawm lub sab sauv cover thiab lead hauv cable los ntawm lub inlet.Txuas lub davhlau ya nyob twg raws li qhov zoo thiab qhov tsis zoo polarity (Ex hom kev sib txuas qhia nyob rau hauv daim duab) raws li qhia hauv daim duab kos duab, tom qab ntawd kaw cov dej tsis sib txuas, thiab kaw lub hau sab saud tom qab txhua qhov txuas tau txheeb xyuas kom raug.
Nco tseg: lub sensor yuav tsum downward thaum lub installation.
Daim duab 2 piav qhia qhov ntev thiab qhov chaw teeb tsa ntawm lub tshuab xa hluav taws xob
2.2 Cov lus qhia txuas
2.2.1 RS485 hom
(1) Cables yuav tsum yog rvvp2 * 1.0 thiab siab dua, ob 2-core xov hlau los yog rvvp4 * 1.0 thiab siab dua, thiab ib tug 4-core hlau.
(2) Kev xaim tsuas yog txhawb nqa txoj hauv kev tes.Daim duab 3 qhia tag nrho cov kab hluav taws xob, thiab daim duab 4 qhia cov ncauj lus kom ntxaws hauv cov kab hluav taws xob.
Daim duab 3 tag nrho cov kab kos duab
(1) Ntau tshaj 500m, yuav tsum tau ntxiv repeater.Tsis tas li ntawd, thaum lub transmitter txuas nrog ntau dhau lawm, lub zog hloov pauv yuav tsum tau ntxiv.
(2) Nws tuaj yeem txuas nrog pawg tswj hwm tsheb npav lossis PLC, DCS, thiab lwm yam. Modbus kev sib txuas lus raws tu qauv yog xav tau los txuas PLC lossis DCS.
(3) Rau lub davhlau ya nyob twg transmitter, tig liab toggle hloov ntawm lub transmitter mus rau ntawm kev taw qhia.
Daim duab 4 kev sib txuas ntawm RS485 tsheb npav transmitter
2.2.2 4-20mA hom
(1) Lub cable yuav tsum yog RVVP3 * 1.0 thiab siab dua, 3-core hlau.
Daim duab 5 4-20mA kev sib txuas
Cov cuab yeej tuaj yeem tso saib ntawm feem ntau ntawm ib qho ntsuas tus nqi roj.Thaum qhov ntsuas ntawm cov roj yuav tsum tau kuaj pom nyob rau hauv lub tswb ntau, lub relay yuav raug kaw.Yog tias siv lub suab thiab lub teeb ceeb toom lub teeb, lub suab thiab lub tswb nrov yuav raug xa tawm.
Cov cuab yeej muaj peb lub suab lub teeb interfaces thiab ib qho LCD hloov.
Lub ntsuas hluav taws xob muaj lub luag haujlwm ntawm lub sijhawm khaws cia, uas tuaj yeem sau cov xwm txheej ntawm lub tswb thiab lub sijhawm ntawm lub sijhawm.Thov xa mus rau cov lus qhia hauv qab no rau kev ua haujlwm tshwj xeeb thiab cov lus piav qhia ua haujlwm.
3.1 Cov lus piav qhia tseem ceeb
Cov cuab yeej muaj peb lub nyees khawm, thiab cov haujlwm tau qhia hauv Table 3
Table 3 key piav qhia
| Ntsiab | Muaj nuj nqi | Lus hais |
| KEV 1 | Kev xaiv zaub mov | Sab laug |
| TSEEM CEEB 2 | l Nkag mus rau cov ntawv qhia zaub mov thiab paub meej tias tus nqi teeb tsa | Qhov tseem ceeb nruab nrab |
| KEV 3 | Saib cov kev txwv Nkag mus rau cov haujlwm xaiv | Txoj cai tseem ceeb |
Nco tseg: lwm txoj haujlwm yuav raug rau cov zaub hauv qab ntawm lub vijtsam ntsuas.
Nws tseem tuaj yeem ua haujlwm los ntawm infrared chaw taws teeb tswj.Lub luag haujlwm tseem ceeb ntawm infrared chaw taws teeb tswj tau pom hauv daim duab 6.
Daim duab 6 tej thaj chaw deb tswj key piav qhia
3.2 Zaub interface
Tom qab lub cuab yeej yog powered on, nkag mus rau lub khau raj zaub interface.Raws li pom hauv daim duab 7:
Daim duab 7 khau raj zaub interface
Qhov no interface yog tos rau cov ntsuas ntsuas kom stabilize.Lub scroll bar nyob nruab nrab ntawm LCD qhia lub sijhawm tos, txog 50s.X% yog qhov kev nce qib ntawm kev khiav tam sim no.Hauv kaum sab xis ntawm cov zaub yog lub sijhawm ntsuas tam sim no (lub sijhawm no tuaj yeem hloov pauv raws li xav tau hauv cov ntawv qhia zaub mov).
Thaum lub sij hawm tos feem pua yog 100%, qhov ntsuas yuav nkag mus rau hauv kev soj ntsuam cov roj zaub interface.Siv cov pa roj carbon monoxide ua piv txwv, raws li qhia hauv daim duab 8.
Daim duab 8 saib xyuas cov khoom siv roj
Yog tias koj xav tau saib cov roj tsis muaj roj, nyem qhov tseem ceeb.
1) Tshawb pom zaub interface:
Zaub: roj hom, roj concentration tus nqi, chav tsev, xeev.Raws li pom hauv daim duab 8.
Thaum cov roj ntau tshaj li lub hom phiaj, lub tswb ntawm lub tsev yuav raug tso tawm nyob rau hauv pem hauv ntej ntawm chav tsev (lub tswb hom ntawm carbon monoxide, hydrogen sulfide thiab combustible gas yog qib 1 los yog theem 2, thaum lub tswb hom pa oxygen yog lub tswb. sab sauv lossis qis dua), raws li qhia hauv daim duab 9.
Daim duab 9 interface nrog roj tswb
1) Parameter zaub interface:
Nyob rau hauv lub gas detection interface, right-click kom nkag mus rau cov roj parameter zaub interface.
Zaub: roj hom, tswb lub xeev, lub sij hawm, thawj theem tswb nqi (tso txwv tswb), theem ob tswb tus nqi (sab saum toj txwv tswb), ntau yam, tam sim no roj concentration tus nqi, chav tsev, gas txoj hauj lwm.
Thaum nias tus yuam sij (tus yuam sij txoj cai) nyob rau hauv "rov qab", cov zaub interface yuav hloov mus rau qhov ntsuas roj zaub interface.
Daim duab 10 carbon monoxide