Dwyer SN Vane In-Line Mabokose a Taolo a Flowmeter a Sebaka sa Phallo a nang le Li-transmitters
Litlhaloso
- Letoto: SN/SM/SH, MN/MM/MH, LN/LE, XHF
- Mofuta: Mabokose a Taolo a Phallo ea Phallo ea Sebaka se Tloaelehileng sa Vane In-Line a nang le Li-transmitters
Ho kenya
- Etsa bonnete ba hore sebaka seo flowmeter e tla kenngoa ho sona se hloekile ebile ha se na litšitiso leha e le life.
- Hlalosa mohlala o loketseng ho tsoa letotong le boletsoeng ho litlhaloso.
- Latela litaelo tse qaqileng tsa ho instola tse fanoeng bukeng ea moetso o itseng.
Tshebetso
- Hang ha e kentsoe, hokela flowmeter mohloling oa matla ho latela litaelo tse fanoeng.
- Bulela sesebelisoa 'me u latele mehato ea calibration e boletsoeng bukeng ea litaelo ho netefatsa ho bala ho nepahetseng.
- Lekola lipalo tse hlahang ho transmitter 'me u nke mehato e hlokahalang ho latela data.
LBH
P: Nka lekanya flowmeter joang?
A: Litaelo tsa ho lekanya li fanoe bukeng e tobileng ea mohlala oa hau. Latela litataiso tseo ka hloko ho lekanya flowmeter ka nepo.
SERIES SN/SM/SH, MN/MM/MH, LN/LE, XHF
TŠEBELETSO VANE
IN-LINE LITŠOANTŠISO TSA TAOLI TSA FLOWMETER TSA LITŠOANTŠISO TSA LITŠOANTŠISO
Buka ea ho kenya le ho sebetsa
Kakaretso ea Vane Piston Switch Manual
Buka ea ho Kenya le Ts'ebetso bakeng sa letoto: LL, LP, LH, SN, SM, SH, MN, MM , MH, SX le MX bakeng sa mabokose a taolo a A, L kapa Z a nang le li-switch tse 0, 1 kapa 2.
NAMEPLATES LE PRODUCT ID
Bukana ena e sebetsa ho limithara tsohle tsa vane/piston tse nang le e mong oa baqapi ba likhoutu tsa mohlala tse bontšitsoeng tafoleng e bontšitsoeng ka tlase. Sena se ka bonoa lebitsong la poleiti example.
Letlapa la 1: Likhetho tsa khoutu ea mohlala bakeng sa zero, e le 'ngoe, li-switches tse peli
| A0 | L0 | Z0 |
| A1 | L1 | Z1 |
| A1B | L1B | Z1B |
| A3 | L3 | Z3 |
| A61 | L61 | Z61 |
| A71 | L71 | Z71 |
| A3 | L3 | Z3 |
| A4 | L4 | Z4 |
| A62 | L62 | Z62 |
| A72 | L72 | Z72 |
| A2 | L2 | Z2 |
TLHOKOMELO: Sesebelisoa sena se etselitsoe tšebeliso e khethehileng e boletsoeng ka nako ea taelo. Tšebeliso efe kapa efe e 'ngoe e ka baka kotsi. Bala litaelo pele u sebelisa sesebelisoa.
Khokahano ea Phepelo-Litekanyo tsa Wire: Mohala o sebelisetsoang ho hokahanya Liphetoho leha e le life tse kenyelelitsoeng li tlameha ho lumellana le likhoutu tsohle tsa lehae le tsa naha. Boholo ba terata le litekanyetso tsa insulation li lokela ho tšehetsa meroalo ea 'nete. Sheba hape Fetola Litekanyo ka tlase. Maemong 'ohle, terata e tlameha ho ba, joalo ka bonyane, 20 AWG Teflon insulated rated ho 600V le 200°C. Ho kgothaletswa ho kenyelletsa sesebelisoa sa ho khaola kapa sekhechana sa potoloho haufi le thepa ena.
Lintlha tsa Phetoho ea Motlakase:
| Fetola Boitsebiso | Fetoha Tlhaloso | Litekanyetso tsa Motlakase |
| Moqapi oa Khoutu ea Mohlala: 1 kapa 2 | SPDT – (3 terata)
(Li-switches tse 1 kapa tse 2 li ka fanoa) |
15A - 125VAC, 250VAC, 480VAC; ⅛HP - 125VAC, ¼HP - 250VAC |
| Moqapi oa Khoutu ea Mohlala: 1B kapa 2B | SPDT – (3 terata) Ho sisinyeha ho phahameng | 20A - 125VAC, 250VAC, 480VAC; ½ A -
125VDC, ¼A -250VDC; 1HP - 125VAC, 2HP - 250VAC |
| Moqapi oa Khoutu ea Mohlala: 61 kapa 62 | SPDT -
Mocheso o Phahameng |
15A - 125VAC, 250VAC, 480VAC; ½ A -
125VDC, ¼A -250VDC; ⅛HP - 125VAC, ¼HP - 250VAC |
| Moqapi oa Khoutu ea Mohlala: 71 kapa 72 | SPDT -
Khauta Kopana |
15A - 125VAC, 250VAC, 480VAC; ⅛HP -
125VAC, ¼HP - 250VAC |
| Moqapi oa Khoutu ea Mohlala: 3 kapa 4 | SPDT – (4 terata) Foromo e le 'Ngoe ea Phomolo Z | 15A - 125VAC, 250VAC, 480VAC; 1A -
125VDC, ½A -250VDC; ¼HP - 125VAC, ½ HP - 250VAC |
Ho kenya
Bakeng sa liphetho tse ntle, limithara li ka kenngoa sebakeng sefe kapa sefe ha feela litlhoko tse nepahetseng tsa ho kenya liphaephe li hlokomeloa. Sena se kenyelletsa ts'ehetso e lekaneng ea liphaephe tse haufi ho fokotsa ho thothomela ha sistimi. Likopano tsa boholo bo lekanang ba liphaephe le li-valve tsa bolo ea ho itšehla thajana li ka kenngoa molemong oa ho tlosa le ho sebeletsa lisebelisoa, ha ho hlokahala.
Haeba tepi ea Teflon® kapa pipe sealant e sebelisoa, mosebelisi o tlameha ho etsa bonnete ba hore ha ho likarolo tse hlephileng tse phuthetsoeng ho pota-pota bluff kapa sensor ea phallo ha phallo e qala.
Vane/Piston AX/H
Tlhophiso le Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX le MX E sebelisoa ka mabokose a taolo: A, L, kapa Z ka 4-20 mA.
Palo e kahodimodimo litekanyo
Ho Seta kapele
Wiring Ho Sebelisa Lithapo Tse Kentsoeng Pele:
Qetella potoloho ea lupu u sebelisa lithapo tse peli tse kentsoeng pele tse 2”, lithapo tsa 18AWG tse fanoeng.
BOHLOKOA: Ela hloko polarity—Thapo e khubelu ke positive (+), ’me terata e ntšo ke negative (-).
Wiring Ho Tlosa Lithapo Tse Kentsoeng Pele:
Bula sekwahelo 'me u tlose lithapo tse kentsoeng pele. Hokela terata e sothehileng (e sa fanoang) ho li-terminals u shebile polarity e tšoailoeng letlapeng la PC. Diyuniti di romelwa ka terata e kgubedu e hokeletsweng ho theminale ya positi (+), le terata e ntsho e hokeletsweng ho theminale ya negative (-). Mohala o ka ba boholo ba AWG 14, empa ha o nyane ho feta AWG22.
Selelekela ho Litlhaloso tsa Sesebelisoa sa Tšimo sa HART®
Sebaka
Sesebelisoa sa phallo ea metsi sa Universal Flow Monitors, ME Transmitter ea mohlala e lumellana le HART Protocol Revision 7.0. Tokomane ena e totobatsa likarolo tsohle tse ikhethileng tsa sesebelisoa le litokomane lintlha tsa ts'ebetso ea HART Protocol (mohlala, Likhoutu tsa Yuniti ea Boenjiniere li tšehelitsoe). Ts'ebetso ea Sesebelisoa sena sa Tšimo e hlalositsoe ka mokhoa o lekaneng ho lumella ts'ebeliso ea eona e nepahetseng ts'ebetsong le ts'ehetso ea eona e felletseng ho HART e nang le bokhoni ba Host Application.
Morero
Tlhaloso ena e etselitsoe ho tlatsana le litokomane tse ling (mohlala, libuka tsa ho kenya tse khethehileng ho SN/SM/SH, MN/MM/MH/, LL/LP/LH, LN/LE le XHF model flow metres) ka ho fana ka methalo e felletseng, e sa hlakang. tlhaloso ea Sesebelisoa sena sa Tšimo ho latela pono ea HART Communication
Ke Mang ea Lokelang ho Sebelisa Tokomane ee?
Litlhaloso li etselitsoe ho ba litšupiso tsa tekheniki bakeng sa Baetsi ba Ts'ebetso ba HART ba nang le bokhoni, Bahokahanyi ba Sisteme le Basebelisi ba nang le tsebo. E boetse e fana ka litlhaloso tsa ts'ebetso (mohlala, litaelo, lipalo le litlhoko tsa ts'ebetso) tse sebelisoang nakong ea ntlafatso ea Sesebelisoa sa Tšimo, tlhokomelo le liteko. Tokomane ena e nka hore 'mali o tloaelane le litlhoko le mantsoe a HART Protocol.
Likgutsufatso le Litlhaloso
- ADC Analog ho Digital Converter
- CPU Central Processing Unit (ea microprocessor)
- DAC Digital ho fetolela Analog
- Memori ea ho Bala Feela ea EEPROM ka Motlakase
- ROM Memori ea ho Bala Feela
- Phapang ea mantlha ea PV
- Mofuta oa bobeli oa SV
- HCF HART Communication Foundation
- FSK Frequency Shift Keying Physical Layer
Sebopeho sa Ts'ebetso
E hlahlobang Magnetic
Ho na le lisensara tse peli tse hahelletsoeng ka har'a holo tse lekanyang ho potoloha ha makenete e sa feleng e kenngoeng holim'a shaft ea flowmeter. Ha shaft e ntse e potoloha ka phallo, li-sensor li fana ka lipalo tsa analog tseo le tsona li fetoloang ho boleng ba dijithale ka le A/D converter. Litekanyetso tsa dijithale li sebetsoa ke "microcontroller" ebe li tsamaisoa ka mela, 'me hamorao li fetoleloa ho phallo ea analog e lekantsoeng ka converter ea D/A ka har'a 4 ho isa ho 20 mA.
Host Interface Analog Output 1: Phallo ea Ts'ebetso
Loop ea terata e 'meli ea 4-20mA e hokahane le li-terminals tse peli ho boto ea potoloho ea transmitter. Ho latela sehlahisoa se sebelisitsoeng, e 'ngoe ea litlhophiso tse peli e fanoa bakeng sa wiring ea tšimo.
Khetho ea pele e lumella mosebelisi ho hokahanya lithapo tsa loop ka kotloloho ho li-terminals ho PCB. Polarity e nepahetseng e bontšoa litšoantšong tse ka tlase, moo terata e khubelu e hoketsoeng ho theminale ea (+) ebe terata e ntšo e hokeletsoeng ho theminale ea (–).
Liphetoho tse Matla
Liphetoho tse peli tsa Dynamic lia kengoa tšebetsong.
Letlapa la 3: Tafole ea Liphetoho tse Matla
| Tlhaloso | Diyuniti | |
| PV | Ho Bala Phallo ea Volumetric | GPM, CMH,
LPM |
| SV | Totalizer Boleng e thehiloeng ho PV | E latela likarolo tsa PV |
PV e nkiloe ho sebelisoa tafole e lekantsoeng ea linearization e sebelisoang ho li-converter tsa A/D tsa li-sensor tsa phello ea holo.
SV e ipapisitse le sebali sa nako ea 5ms mme e nchafatsoa ho ipapisitsoe le palo ea hona joale ea phallo.
Bobeli boleng ba PV le SV bo bonolo.
Boitsebiso ba Boemo
Letlapa la 4: Letlapa la Boemo ba Sesebelisoa
| Mask e nyane | Tlhaloso | Maemo a ho beha bit |
| 0x80(bit 7) | Ho Se sebetse ha Sesebediswa | Ha ho letho |
| 0x40(bit 6) | Tlhophiso e Fetohile | Phetoho efe kapa efe ho tlhophiso ea sesebelisoa |
| 0x20(bit 5) | Qaleho e batang | Beha nako efe kapa efe matla a baesekele |
| 0x10(bit 4) | Maemo a mang a teng | E etsa hore alamo e sebetse |
| 0x08(bit 3) | Loop Current Fixed | Ha ho letho |
| 0x04(bit 2) | Loop Current Saturated | E etsahala ha loop current e fihla moeling o holimo |
| 0x02(bit 1) | Mofuta o sa Tloaelehang o tsoile meeli | Ha ho letho |
| 0x01(bit 0) | Phapang e ka Sehloohong Hantle ho meeli | E etsahala ha PV e fokotswa ka lebaka la ho feta meedi e lekantsweng |
Ha Bit 4 e setiloe, Host e lokela ho romela Command 48 ho fumana hore na ke alamo efe e sebetsang.
Maemo a Tlatsetso a Sesebediswa (Taelo #48)
Taelo ea #48 e khutlisa li-byte tse 9 tsa data, ka lintlha tse latelang tsa boemo:
Letlapa la 5: Tafole e Khethehileng ea Sesebelisoa sa Byte 0
| Mask e nyane | Tlhaloso | Maemo |
| 0x80 | E sa hlalosoang | NA |
| 0x40 | E sa hlalosoang | NA |
| 0x20 | E sa hlalosoang | NA |
| 0x10 | E sa hlalosoang | NA |
| 0x08 | E sa hlalosoang | NA |
| 0x04 | E sa hlalosoang | NA |
| 0x02 | Alamo e Phahameng | Alamo e phahameng ea sebetsa haeba e setiloe |
| 0x01 | Alamo e tlase | Alamo e tlase ea sebetsa haeba e setiloe |
Burst Mode
Sesebediswa sena ha se tshehetse Burst Mode.
Tšoara Sesebelisoa se Fetohang
Sesebediswa sena ha se tshehetse Catch Device Variable.
Litaelo tse Khethehileng tsa Sesebelisoa
Ho kengoa tšebetsong litaelo tse tobileng tsa sesebelisoa:
- 128 Bala Lintlha tsa Alamo
- 129 Ngola Alarm Setpoint e tlase
- 130 Ngola High Alarm Setpoint
- 131 Seta Botjha Totalizer
Taelo #128: Bala Alarm Setpoints
E bala Lintlha tsa Alamo tse Phahameng le tse tlase. Haeba lefela, alamo e koetsoe.
Kopa Data Byte
Letlapa la 6: Kopa tafole ea li-Byte tsa data
| Tlhaloso ea Format ea Byte |
| Ha ho letho |
Response Data Bytes
Letlapa la 7: Letlapa la Li-Byte tsa Likarabo tsa Likarabo
| Byte | Sebopeho | Tlhaloso |
| 0 | Enum | Theko ea likarolo tsa PV |
| 1-4 | Phallana | Alarm e phahameng Setpoint |
| 5-8 | Phallana | Boleng ba High Alarm Setpoint |
Taelo ea #129: Ngola Alarm Setpoint e tlase
E ngola sebaka sa Alamo e tlase.
Kopa Data Byte
Taelo ea #131: Seta Botjha Totalizer
E seta botjha totalizer ho zero.
Kopa Data Byte
Letlapa la 11: Kopa tafole ea li-Byte tsa data
| Byte | Sebopeho | Tlhaloso | |
| 0-3 | Phallana | Tlhaloso e tlase ea Alamo | |
Response Data Bytes
Letlapa la 12: Letlapa la Li-Byte tsa Likarabo tsa Likarabo
| Tlhaloso ea Format ea Byte |
| Ha ho letho |
Melao e Ikhethileng ea Karabelo
Lethathamo la 13: Tafole ea Likhoutu tsa Karabelo e khethehileng ea Taelo
| Khoutu | Sehlopha | Tlhaloso |
| 0 | Katleho | Ha ho Liphoso tse Ipehileng Taelo |
| 1-15 | E sa hlalosoang | |
| 16 | Phoso | Mokhoa oa ho kena o thibetsoe |
| 17-31 | E sa hlalosoang | |
| 32 | Phoso | Phathahane |
| 33-127 | E sa hlalosoang |
Tshebetso
Sampling Rates
E tloaelehileng samplikhahla tsa ling li bontšoa tafoleng e latelang.
Lethathamo la 14: Sampling Litefiso tafole
| Palo ea boleng ba dijithale ea PV | 10 motsotsoana |
| Palo ea boleng ba dijithale ea SV | 10 motsotsoana |
| Ntlafatso ea tlhahiso ea analog | 10 motsotsoana |
Matla-Hodimo
Hangata sesebelisoa se se se lokile nakong ea motsotsoana o le mong ka mor'a ho felloa ke matla. Totalizer e qalisoa ho ea ho zero.
Seta bocha
Taelo ea 42 ("Device Reset") e etsa hore sesebelisoa se tsosolose microcontroller ea sona. Sephetho sa ho qala bocha se ts'oana le tatelano e tloaelehileng ea ho phahamisa matla.
Boiketsi ba ho itlhatlhoba
Ho itlhahloba ha hoa tšehetsoa.
Laela Linako Tsa Karabelo
Lethathamo la 15: Tafole ea Linako Tsa Karabelo ea Taelo
| Bonyane | 20ms |
| E tloaelehileng | 50ms |
| Boholo | 100ms |
Sehlomathiso A: Lethathamo la Bokhoni
| Moetsi, mohlala le ntlafatso | Phallo ea Bokahohle, ME Transmitter, Rev1 |
| Mofuta oa sesebelisoa | Phetiso |
| Ntlafatso ea HART | 7.0 |
| Tlhaloso ea Sesebelisoa e teng | Che |
| Nomoro le mofuta oa li-sensor | 2 ka hare |
| Nomoro le mofuta oa li-activators | 0 |
| Nomoro le mofuta oa matšoao a lehlakoreng la moamoheli | 1: 4 - 20mA analoge |
| Palo ea Mefuta-futa ea Lisebelisoa | 4 |
| Palo ea Liphetoho tse Matla | 2 |
| Liphetoho tse matla tsa 'mapa? | Che |
| Palo ea litaelo tse tloaelehileng | 5 |
| Nomoro ea litaelo tse khethehileng tsa lisebelisoa | 4 |
| Likotoana tsa boemo bo eketsehileng ba sesebelisoa | 2 |
| Mekhoa e meng ea ho sebetsa? | Che |
| Mokhoa oa ho phatloha? | Che |
| Tšireletso ea ho ngola? | Che |
Vane/Piston AXØ
Tlhophiso le Letoto la Tsamaiso ea Ts'ebetso: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX le MX bakeng sa mabokose a taolo a A, L kapa Z a nang le transmitter.
Palo e kahodimodimo litekanyo
Litlaleho tsa mabitso le ID ea Sehlahisoa
Bukana ena e sebetsa ho limithara tsohle tsa vane/piston tse nang le moqapi "AX0", "LX0" kapa "ZX0" khoutu ea mohlala. Sena se ka bonoa letlapeng la mabitso joalo ka ha ho bonts'itsoe ka tlase. 
Vane/Piston RX/H
Tlhophiso le Letoto la Tsamaiso ea Ts'ebetso: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX, MX, LN, LE le XHF E sebelisoa ka mabokose a taolo a R a nang le 4-20 mA transmitter kapa HART le li-switches tsa boikhethelo tsa mochini. .
Palo e kahodimodimo litekanyo
Ho kenya
Bakeng sa liphetho tse ntle, limithara li ka kenngoa sebakeng sefe kapa sefe ha feela litlhoko tse nepahetseng tsa ho kenya liphaephe li hlokomeloa. Sena se kenyelletsa ts'ehetso e lekaneng ea liphaephe tse haufi ho fokotsa ho thothomela ha sistimi. Likopano tsa boholo bo lekanang ba liphaephe le li-valve tsa bolo ea ho itšehla thajana li ka kenngoa molemong oa ho tlosa le ho sebeletsa lisebelisoa, ha ho hlokahala.
Litšupiso
Tlhaloso ea HART Smart Communications Protocol. HCF_SPEC-12. E fumaneha ho tsoa ho HCF. Litaelo tsa ho kenya tse ikhethileng ho SN/SM/SH, MN/MM/MH/LL/LP/LH,LN/LE le XHF ea methalo ea phallo ea mohlala joalo ka ha e entsoe ke Universal Flow Monitors, Inc.
Boitsebiso ba Sesebediswa
Sehlahisoa se Felletseview
ME Transmitter ke mochini o tsamaisang thepa o nang le terata tse peli, o nang le tlhahiso ea 4-to-20mA. Transmitter ena e sebelisa encoder e sa amaneng le makenete bakeng sa ho lekanya phallo ea shaft/pointer ho li-flowmeters tse tloaelehileng tsa UFM. Ke karolo ea tlatsetso ho SN/SM/SH,MN/MM/MH,LL/LP/LH,LN/LE le XHF model flow metres joalokaha e entsoe ke Universal Flow Monitors, Inc. ME Transmitter e nka sebaka sa mehlala ea pejana. Li-Transmitters tsa Dijithale tse sebelisitseng potentiometer, tse fanang ka ho nepahala ho ntlafalitsoeng ha li ntse li boloka li lumellana ka 100%. Sehlahisoa sa analoge sa sesebelisoa sena se tsamaisana le phallo holim'a mefuta e sebetsang ea li-flowmeters tsohle tse tšehetsoeng.
Sebopeho sa Ts'ebetso
E hlahlobang Magnetic
Ho na le lisensara tse peli tse hahelletsoeng ka har'a holo tse lekanyang ho potoloha ha makenete e sa feleng e kenngoeng holim'a shaft ea flowmeter. Ha shaft e ntse e potoloha ka phallo, li-sensor li fana ka lipalo tsa analog tseo le tsona li fetoloang ho boleng ba dijithale ka le A/D converter. Litekanyetso tsa dijithale li sebetsoa ke "microcontroller" ebe li tsamaisoa ka mela, 'me hamorao li fetoleloa ho phallo ea analog e lekantsoeng ka converter ea D/A ka har'a 4 ho isa ho 20 mA.
Sebopeho sa Host: Phallo ea Ts'ebetso
Loop ea terata e 'meli ea 4-20mA e hokahane le li-terminals tse peli ho boto ea potoloho ea transmitter. Ho latela sehlahisoa se sebelisitsoeng, e 'ngoe ea litlhophiso tse peli e fanoa bakeng sa wiring ea tšimo.
Tsela ea bobeli ea ho qetela hole le PCB (e kentsoeng ka phaposing e arohaneng ea flowmeter) 'me e tšoailoe L+ le L-. Mohala o mofubelu o hokela terminal (+) ho PCB ho L+ 'me terata e ntšo e hokela theminale ea (-) ho PCB ho L-.
Ena ke eona feela tlhahiso e tsoang ho transmitter ena, e emelang tekanyo ea phallo ea ts'ebetso, e lekantsoeng le e lekantsoeng ho latela mefuta e hlophisitsoeng ea sesebelisoa. Sehlahisoa sena se lumellana le Phapang ea Pele. Khokahano ea HART e tšehelitsoe ho loop ena.
Ho fanoe ka moeli o tiisitsoeng oa linear over-range. Boemo bo phahameng ba 24mA bo ka bonts'a ho se sebetse hantle ha sesebelisoa. Maemo a hajoale a bonts'itsoe lethathamong le ka tlase.
Lethathamo la 17: Tafole ea Maemo a Hona Joale
| Tataiso | Boleng (persente ea sebaka) | Boleng (mA kapa V) | |
|
Mohala o fetelletseng |
Tlase | 0% ± 0.5% | 3.92 ho isa ho 4.08 mA |
| Up | + 106.25% ± 0.1% | 20.84 mA ho isa ho 21.16 mA | |
| Sesupo sa ho se sebetse hantle ha sesebelisoa | Tlase | N/A | N/A |
| Up | + 125.0% ± 0.1% | 23.98 mA ho isa ho 24.02 mA | |
| Boholo ba hona joale | + 106.25% ± 1% | 20.84 mA ho isa ho 21.16 mA | |
| Mothati oa hona joale oa Multi-Drop | 4.0 mA | ||
| Phahamiso ea voltage | 10.5 V | ||
Boitsebiso ba Boemo
| Mask e nyane | Tlhaloso | Maemo a ho beha bit |
| 0x80(bit 7) | Ho Se sebetse ha Sesebediswa | Ha ho letho |
| 0x40(bit 6) | Tlhophiso e Fetohile | Phetoho efe kapa efe ho tlhophiso ea sesebelisoa |
| 0x20(bit 5) | Qaleho e batang | Beha nako efe kapa efe matla a baesekele |
| 0x10(bit 4) | Maemo a mang a teng | E etsa hore alamo e sebetse |
| 0x08(bit 3) | Loop Current Fixed | Ha ho letho |
| 0x04(bit 2) | Loop Current Saturated | E etsahala ha loop current e fihla moeling o holimo |
| 0x02(bit 1) | Mofuta o sa Tloaelehang o tsoile meeli | Ha ho letho |
| 0x01(bit 0) | Phapang e ka Sehloohong Hantle ho meeli | E etsahala ha PV e fokotswa ka lebaka la ho feta meedi e lekantsweng |
Ha Bit 4 e setiloe, Host e lokela ho romela Command 48 ho fumana hore na ke alamo efe e sebetsang.
Boemo bo Atolositsoeng ba Sesebelisoa
The Field Device e ke ke ea bolela esale pele, esale pele, hore na tokiso e tla hlokahala neng. Boemo ba Sesebelisoa se Atolositsoeng ha se sebelisoe.
Letlapa la 19: Taelo ea 48-Byte Data
| Byte | Tlhaloso | Lintlha |
| 0-5 | Boemo bo Khethehileng ba Sesebelisoa | Ho sebelisoa Byte 0 feela |
| 6 | Boemo bo Atolositsoeng ba Sesebelisoa | Bit 1 e tla behoa ha boemo ba alamo bo sebetsa. |
| 7 | Mokhoa oa ho sebetsa oa sesebelisoa | 0 |
| 8 | Boemo bo Tloaelehileng 0 | Ha e sebelisoe |
"Ha e sebelisoe" li-bits li lula li behiloe ho 0.
Sesebediswa ha se tshehetse boemo bo atolositsweng ba sesebediswa, mesebetsi yohle ya boemo ba sesebediswa e kenyeleditswe ho boemo ba sesebediswa baiti.
Litaelo tsa Bokahohle
Litaelo tsohle tsa Universal li tšehetsoa joalo ka ha ho boletsoe ho HART Universal Command Specification.
Litaelo tse Tšehetsoeng ke Tloaelo e Tloaelehileng
Litaelo tse latelang tse tloaelehileng li kengoa tšebetsong:
- 33 Bala Liphetoho tsa Lisebelisoa
- 35 Ngola Litekanyetso tse fapaneng
- 42 Etsa Master Reset
- 44 Ngola likarolo tsa PV
- 54 Bala Boitsebiso bo Fetohang ba Sesebediswa
Taelong ea 54 nako ea ho reka ha e sebelisoe. Litekanyetso hangata li ntlafatsoa ka 100ms.
Melao e Ikhethileng ea Karabelo
Lethathamo la 20: Melao ea Karabelo e Tobileng ea Taelo
| Khoutu | Sehlopha | Tlhaloso |
| 0 | Katleho | Ha ho Liphoso tse Ipehileng Taelo |
| 1-15 | E sa hlalosoang | |
| 16 | Phoso | Mokhoa oa ho kena o thibetsoe |
| 17-31 | E sa hlalosoang | |
| 32 | Phoso | Phathahane |
| 33-127 | E sa hlalosoang |
Taelo ea #130: Ngola Sebaka sa Alamo se Phahameng
E ngola sebaka sa Alamo e Phahameng.
Kopa Data Byte
Letlapa la 21: Kopa tafole ea li-Byte tsa data
| Byte | Sebopeho | Tlhaloso | |
| 0-3 | Phallana | Alarm e phahameng Setpoint | |
Response Data Bytes
Letlapa la 22: Letlapa la Li-Byte tsa Likarabo tsa Likarabo
| Byte | Sebopeho | Tlhaloso | |
| 0 | Enum | Theko ea likarolo tsa PV | |
| 1-4 | Phallana | Alarm e phahameng Setpoint | |
Melao e Ikhethileng ea Karabelo
Lethathamo la 23: Tafole ea Likhoutu tsa Karabelo e khethehileng ea Taelo
| Khoutu | Sehlopha | Tlhaloso |
| 0 | Katleho | Ha ho Liphoso tse Ipehileng Taelo |
| 1-15 | E sa hlalosoang | |
| 16 | Phoso | Mokhoa oa ho kena o thibetsoe |
| 17-31 | E sa hlalosoang | |
| 32 | Phoso | Phathahane |
| 33-127 | E sa hlalosoang |
Litafole
Phallo Unit Codes
Sehlopha se ka tlase sa HART Common Unit Codes
Letlapa la 24: Tafole ea Likhoutu tsa Phallo
| 16 | Lilithara ka Motsotso (GPM) |
| 17 | Lithara ka motsotso (LPM) |
| 19 | Cubic Meters ka Hora (CMH) |
Phetoho ea Yuniti
Ka hare, transmitter e sebelisa Gallons ka motsotso. Liphetoho li etsoa ho sebelisoa ntlha e phaphametseng. Maemo a fetoloa ka kotloloho ho tsoa ho GPM ha ho khoneha, leha ho le joalo, litekanyetso tsa Alamo tse fetotsoeng lipakeng tsa li-unit li fetoloa ho tloha ho boleng ba yuniti e bolokiloeng:
Lethathamo la 25: Tafole ea Phetoho ea Yuniti
| Yuniti e Ncha | Yuniti e fetileng | Ntlha |
| GPM | LPM | 0.2642 |
| CMH | 4.403 | |
| LPM | GPM | 3.785 |
| CMH | 16.666 | |
| CMH | GPM | 0.2271 |
| LPM | 0.06 |
Tshebetso
Ho phathahane le ho Liehile-Karabelo
Sesebelisoa se phathahane ha se sebelisoe. Karabelo e liehang ha e sebelisoe.
Melaetsa e Metelele
Sebaka se seholohali sa data se sebelisitsoeng se karabelong ea Command 21: 34 bytes ho kenyelletsa le li-byte tse peli tsa maemo.
Mehopolo e sa Feleng
EEPROM e sebelisoa ho tšoara litlhophiso tsa tlhophiso ea sesebelisoa. Lintlha tse ncha li ngotsoe ka har'a 100ms ea ho fumana taelo.
Mekhoa
Mokhoa o tsitsitseng oa hona joale ha o sebelisoe.
Ngola Tšireletso
Tšireletso ea ho ngola ha e sebelisoe.
Dampng
Dampha se kengoa tšebetsong.
Sehlomathiso b. Tlhophiso ea kamehla
Tlhophiso ea kamehla e ipapisitse le motheo oa unit-by-unit.
ane/Piston TX/H
Tlhophiso le Operation Manual Series: LL, LP, LH, SN, SM, SH, MN, MM, MH, SX, MX, LN, LE le XHF E sebelisoa ka mabokose a taolo a T a nang le 4-20 mA transmitter kapa HART le li-switches tsa boikhethelo tsa mochini. .
Palo e kahodimodimo litekanyo
Ho kenya
Bakeng sa liphetho tse ntle, limithara li ka kenngoa sebakeng sefe kapa sefe ha feela litlhoko tse nepahetseng tsa ho kenya liphaephe li hlokomeloa. Sena se kenyelletsa ts'ehetso e lekaneng ea liphaephe tse haufi ho fokotsa ho thothomela ha sistimi. Likopano tsa boholo bo lekanang ba liphaephe le li-valve tsa bolo ea ho itšehla thajana li ka kenngoa molemong oa ho tlosa le ho sebeletsa lisebelisoa, ha ho hlokahala.
Boitsebiso ba Sesebediswa
Sehlahisoa se Felletseview
ME Transmitter ke mochini o tsamaisang thepa o nang le terata tse peli, o nang le tlhahiso ea 4-to-20mA. Transmitter ena e sebelisa encoder e sa amaneng le makenete bakeng sa ho lekanya phallo ea shaft/pointer ho li-flowmeters tse tloaelehileng tsa UFM. Ke karolo ea tlatsetso ho SN/SM/SH,MN/MM/MH,LL/LP/LH,LN/LE le XHF model flow metres joalokaha e entsoe ke Universal Flow Monitors, Inc. ME Transmitter e nka sebaka sa mehlala ea pejana. Li-Transmitters tsa Dijithale tse sebelisitseng potentiometer, tse fanang ka ho nepahala ho ntlafalitsoeng ha li ntse li boloka li lumellana ka 100%. Sehlahisoa sa analoge sa sesebelisoa sena se tsamaisana le phallo holim'a mefuta e sebetsang ea li-flowmeters tsohle tse tšehetsoeng.
Sebopeho sa Ts'ebetso
- E hlahlobang Magnetic
Ho na le lisensara tse peli tse hahelletsoeng ka har'a holo tse lekanyang ho potoloha ha makenete e sa feleng e kenngoeng holim'a shaft ea flowmeter. Ha shaft e ntse e potoloha ka phallo, li-sensor li fana ka lipalo tsa analog tseo le tsona li fetoloang ho boleng ba dijithale ka le A/D converter. Litekanyetso tsa dijithale li sebetsoa ke "microcontroller" ebe li tsamaisoa ka mela, 'me hamorao li fetoleloa ho phallo ea analog e lekantsoeng ka converter ea D/A ka har'a 4 ho isa ho 20 mA. - Sebopeho sa Host: Phallo ea Ts'ebetso
Loop ea terata e 'meli ea 4-20mA e hokahane le li-terminals tse peli ho boto ea potoloho ea transmitter. Ho latela sehlahisoa se sebelisitsoeng, e 'ngoe ea litlhophiso tse peli e fanoa bakeng sa wiring ea tšimo.
Tsela ea bobeli ea ho qetela hole le PCB (e kentsoeng ka phaposing e arohaneng ea flowmeter) 'me e tšoailoe L+ le L-. Mohala o mofubelu o hokela terminal (+) ho PCB ho L+ 'me terata e ntšo e hokela theminale ea (-) ho PCB ho L-.
Ena ke eona feela tlhahiso e tsoang ho transmitter ena, e emelang tekanyo ea phallo ea ts'ebetso, e lekantsoeng le e lekantsoeng ho latela mefuta e hlophisitsoeng ea sesebelisoa. Sehlahisoa sena se lumellana le Phapang ea Pele. Khokahano ea HART e tšehelitsoe ho loop ena.
Ho fanoe ka moeli o tiisitsoeng oa linear over-range. Boemo bo phahameng ba 24mA bo ka bonts'a ho se sebetse hantle ha sesebelisoa. Maemo a hajoale a bonts'itsoe lethathamong le ka tlase.
Lethathamo la 26: Tafole ea Maemo a Hona Joale
| Tataiso | Boleng (persente ea sebaka) | Boleng (mA kapa V) | |
|
Mohala o fetelletseng |
Tlase | 0% ± 0.5% | 3.92 ho isa ho 4.08 mA |
| Up | + 106.25% ± 0.1% | 20.84 mA ho isa ho 21.16 mA | |
| Sesupo sa ho se sebetse hantle ha sesebelisoa | Tlase | N/A | N/A |
| Up | + 125.0% ± 0.1% | 23.98 mA ho isa ho 24.02 mA | |
| Boholo ba hona joale | + 106.25% ± 1% | 20.84 mA ho isa ho 21.16 mA | |
| Mothati oa hona joale oa Multi-Drop | 4.0 mA | ||
| Phahamiso ea voltage | 10.5 V | ||
Boitsebiso ba Boemo
Letlapa la 27: Letlapa la Boemo ba Sesebelisoa
| Mask e nyane | Tlhaloso | Maemo a ho beha bit |
| 0x80(bit 7) | Ho Se sebetse ha Sesebediswa | Ha ho letho |
| 0x40(bit 6) | Tlhophiso e Fetohile | Phetoho efe kapa efe ho tlhophiso ea sesebelisoa |
| 0x20(bit 5) | Qaleho e batang | Beha nako efe kapa efe matla a baesekele |
| 0x10(bit 4) | Maemo a mang a teng | E etsa hore alamo e sebetse |
| 0x08(bit 3) | Loop Current Fixed | Ha ho letho |
| 0x04(bit 2) | Loop Current Saturated | E etsahala ha loop current e fihla moeling o holimo |
| 0x02(bit 1) | Mofuta o sa Tloaelehang o tsoile meeli | Ha ho letho |
| 0x01(bit 0) | Phapang e ka Sehloohong Hantle ho meeli | E etsahala ha PV e fokotswa ka lebaka la ho feta meedi e lekantsweng |
Ha Bit 4 e setiloe, Host e lokela ho romela Command 48 ho fumana hore na ke alamo efe e sebetsang.
Boemo bo Atolositsoeng ba Sesebelisoa
The Field Device e ke ke ea bolela esale pele, esale pele, hore na tokiso e tla hlokahala neng. Boemo ba Sesebelisoa se Atolositsoeng ha se sebelisoe.
Letlapa la 28: Taelo ea 48-Byte Data
| Byte | Tlhaloso | Lintlha |
| 0-5 | Boemo bo Khethehileng ba Sesebelisoa | Ho sebelisoa Byte 0 feela |
| 6 | Boemo bo Atolositsoeng ba Sesebelisoa | Bit 1 e tla behoa ha boemo ba alamo bo sebetsa. |
| 7 | Mokhoa oa ho sebetsa oa sesebelisoa | 0 |
| 8 | Boemo bo Tloaelehileng 0 | Ha e sebelisoe |
"Ha e sebelisoe" li-bits li lula li behiloe ho 0.
Sesebediswa ha se tshehetse boemo bo atolositsweng ba sesebediswa, mesebetsi yohle ya boemo ba sesebediswa e kenyeleditswe ho boemo ba sesebediswa baiti.
Litaelo tsa Bokahohle
Litaelo tsohle tsa Universal li tšehetsoa joalo ka ha ho boletsoe ho HART Universal Command Specification.
Litaelo tse Tšehetsoeng ke Tloaelo e Tloaelehileng
Litaelo tse latelang tse tloaelehileng li kengoa tšebetsong:
- 33 Bala Liphetoho tsa Lisebelisoa
- 35 Ngola Litekanyetso tse fapaneng
- 42 Etsa Master Reset
- 44 Ngola likarolo tsa PV
- 54 Bala Boitsebiso bo Fetohang ba Sesebediswa
- Taelong ea 54 nako ea ho reka ha e sebelisoe. Litekanyetso hangata li ntlafatsoa ka 100ms.
Burst Mode
Sesebediswa sena ha se tshehetse Burst Mode.
Tšoara Sesebelisoa se Fetohang
Sesebediswa sena ha se tshehetse Catch Device Variable.
Litaelo tse Khethehileng tsa Sesebelisoa
Ho kengoa tšebetsong litaelo tse tobileng tsa sesebelisoa:
- 128 Bala Lintlha tsa Alamo
- 129 Ngola Alarm Setpoint e tlase
- 130 Ngola High Alarm Setpoint
- 131 Seta Botjha Totalizer
Taelo ea #129: Ngola Alarm Setpoint e tlase
E ngola Setpoint bakeng sa Alamo e tlase.
Kopa Data Byte
Letlapa la 29: Kopa tafole ea li-Byte tsa data
| Byte | Sebopeho | Tlhaloso |
| 0-3 | Phallana | Tlhaloso e tlase ea Alamo |
Response Data Bytes
Letlapa la 30: Letlapa la Li-Byte tsa Likarabo tsa Likarabo
| Byte | Sebopeho | Tlhaloso |
| 0 | Enum | Theko ea likarolo tsa PV |
| 1-4 | Phallana | Tlhaloso e tlase ea Alamo |
Melao e Ikhethileng ea Karabelo
Lethathamo la 31: Tafole ea Likhoutu tsa Karabelo e khethehileng ea Taelo
| Khoutu | Sehlopha | Tlhaloso |
| 0 | Katleho | Ha ho Liphoso tse Ipehileng Taelo |
| 1-15 | E sa hlalosoang | |
| 16 | Phoso | Mokhoa oa ho kena o thibetsoe |
| 17-31 | E sa hlalosoang | |
| 32 | Phoso | Phathahane |
| 33-127 | E sa hlalosoang |
Taelo ea #131: Seta Botjha Totalizer
E seta botjha totalizer ho zero.
Kopa Data Byte
Letlapa la 32: Kopa tafole ea li-Byte tsa data
| Tlhaloso ea Format ea Byte |
| Ha ho letho |
Response Data Bytes
Letlapa la 33: Letlapa la Li-Byte tsa Likarabo tsa Likarabo
| Tlhaloso ea Format ea Byte |
| Ha ho letho |
Melao e Ikhethileng ea Karabelo
Lethathamo la 34: Tafole ea Likhoutu tsa Karabelo e khethehileng ea Taelo
| Khoutu | Sehlopha | Tlhaloso |
| 0 | Katleho | Ha ho Liphoso tse Ipehileng Taelo |
| 1-15 | E sa hlalosoang | |
| 16 | Phoso | Mokhoa oa ho kena o thibetsoe |
| 17-31 | E sa hlalosoang | |
| 32 | Phoso | Phathahane |
| 33-127 | E sa hlalosoang |
Tshebetso
Sampling Rates
E tloaelehileng samplikhahla tsa ling li bontšoa tafoleng e latelang.
Lethathamo la 35: Sampling Litefiso tafole
| Palo ea boleng ba dijithale ea PV | 10 motsotsoana |
| Palo ea boleng ba dijithale ea SV | 10 motsotsoana |
| Ntlafatso ea tlhahiso ea analog | 10 motsotsoana |
Matla-Hodimo
Hangata sesebelisoa se se se lokile nakong ea motsotsoana o le mong ka mor'a ho felloa ke matla. Totalizer e qalisoa ho ea ho zero.
Seta bocha
Taelo ea 42 ("Device Reset") e etsa hore sesebelisoa se tsosolose microcontroller ea sona. Sephetho sa ho qala bocha se ts'oana le tatelano e tloaelehileng ea ho phahamisa matla. (Sheba Karolo ea 5.7.2.)
Boiketsi ba ho itlhatlhoba
Ho itlhahloba ha hoa tšehetsoa.
Laela Linako Tsa Karabelo
Lethathamo la 36: Tafole ea Linako Tsa Karabelo ea Taelo
| Bonyane | 20ms |
| E tloaelehileng | 50ms |
| Boholo | 100ms |
Sehlomathiso A: Lethathamo la Bokhoni
Lethathamo la 37: Lethathamo la Lethathamo la Bokhoni
| Moetsi, mohlala le ntlafatso | Phallo ea Bokahohle, ME Transmitter, Rev1 |
| Mofuta oa sesebelisoa | Phetiso |
| Ntlafatso ea HART | 7.0 |
| Tlhaloso ea Sesebelisoa e teng | Che |
| Nomoro le mofuta oa li-sensor | 2 ka hare |
| Nomoro le mofuta oa li-activators | 0 |
| Nomoro le mofuta oa matšoao a lehlakoreng la moamoheli | 1: 4 - 20mA analoge |
| Palo ea Mefuta-futa ea Lisebelisoa | 4 |
| Palo ea Liphetoho tse Matla | 2 |
| Liphetoho tse matla tsa 'mapa? | Che |
| Palo ea litaelo tse tloaelehileng | 5 |
| Nomoro ea litaelo tse khethehileng tsa lisebelisoa | 4 |
| Likotoana tsa boemo bo eketsehileng ba sesebelisoa | 2 |
| Mekhoa e meng ea ho sebetsa? | Che |
| Mokhoa oa ho phatloha? | Che |
| Tšireletso ea ho ngola? | Che |
Vane/Piston TX/TXL
Letoto la Buka ea Tlhophiso le Ts'ebetso: LL, LP, LH, PI, SN, SM, SH, MN, MM, MH, SX le MX
Litlaleho tsa mabitso le ID ea Sehlahisoa
Bukana ena e sebetsa ho limithara tsohle tsa vane/piston tse nang le moqapi "TX0,1,2,3,4 or 61" kapa "TXL0,1,3,
ka khoutu ea mohlala. Sena se ka bonoa letlapeng la mabitso joalo ka ha ho bonts'itsoe ka tlase.
Setšoantšo sa 32: Terminal Strip for Power le 4-20 mA Signal
Setšoantšo se tloaelehileng sa 4-20mA se bonts'oa ka tlase
Ho fanoe ka moeli o tiisitsoeng oa linear over-range. Ho se sebetse hantle ha sesebelisoa ho ka bonts'oa ke boemo ba hona joale ba 24mA. Maemo a hajoale a bonts'itsoe lethathamong le ka tlase.
Lethathamo la 38: Tafole ea Maemo a Hona Joale
| Tataiso | Boleng (persente ea sebaka) | Boleng (mA kapa V) | |
| Mohala o fetelletseng | Tlase | 0% ± 0.5% | 3.92 ho isa ho 4.08 mA |
| Up | + 106.25% ± 0.1% | 20.84 mA ho isa ho 21.16 mA | |
| Sesupo sa ho se sebetse hantle ha sesebelisoa | Tlase | N/A | N/A |
| Up | + 125.0% ± 0.1% | 23.98 mA ho isa ho 24.02 mA | |
| Boholo ba hona joale | + 106.25% ± 1% | 20.84 mA ho isa ho 21.16 mA | |
| Mothati oa hona joale oa Multi-Drop | 4.0 mA | ||
| Phahamiso ea voltage | 10.5 V | ||
- Ka mor'a hore nomoro ea ho qetela e behoe, tsoela pele ho tšoara A2 ho fihlela "SET" e hlaha. Haeba u batla ho fetola nomoro ea pele hape, u se ke ua tšoara A2. Tobetsa nakoana 'me u lokolle A2 'me nomoro ea pele e qala ho panya hape.
- Ha o qetile ho rekota setpoint se secha ("SEt" e bonts'itsoe), lokolla A2.
- Tlhokomeliso ea 1: Sebaka se nepahetseng sa sebaka sa ho beha ke 0-100% sa phallo e felletseng. Haeba boleng ba alamo bo behiloe holimo ho feta tekanyo e felletseng, ke clamphlophisitsoe ka botlalo ha o tsoa lenaneng lena.
- Tlhokomeliso ea 2: Ho tima alamo, beha boleng ba eona ho zero.
- Tlhokomeliso ea 3: ALARM 1 LED e khubelu e hlaha ha phallo e feta sebaka sena se behiloeng. LED ena e le letotong la potoloho ea koloi bakeng sa tlhahiso e phahameng ea alamo e bulehileng, e bolelang hore transistor e hlahisoang e sebetsa neng kapa neng ha LED ena e buletsoe. Mefuta e meng ha e na lithapo tsa ka ntle tse hokelang ho transistor ea alamo (sheba Mehlala ea Likhoutu).
Ho sena mohlalaample, alamo e phahameng e ne e behiloe bakeng sa 80.0; ka hona, LED e khubelu e ile ea sebelisoa ha phallo e fihla ho 80.1.
LED e tima ha e phalla < (setpoint - hysteresis). Hysteresis ke 5% ea tekanyo e feletseng.
Beha Alamo ea Phallo e Tlase
- Tobetsa A2 ho fihlela "LFLo" e hlaha, ebe o lokolla A2.
RETS'ELISITSOE
Litokomane / Lisebelisoa
 |
Dwyer SN Vane In-Line Mabokose a Taolo a Flowmeter a Sebaka sa Phallo a nang le Li-transmitters [pdf] Buka ea Taelo Mabokose a Taolo a Phallo ea Phallo ea SN Vane In-Line a nang le Li-transmitters, SN, Mabokose a Taolo a Phallo ea Phallo ea Vane In-Line a nang le li-transmitters, Mabokose a Taolo a Flowmeter a sebakeng se fapaneng a nang le li-transmitters, Mabokose a Taolo a Flowmeter a nang le Li-transmitters, Mabokose a Taolo a Flowmeter a nang le Li-transmitters, Mabokose a Taolo. ka Li-Transmitters, Mabokose a nang le Li-Transmitters, Transmitters |
