Labkotec SET-2000 Level Shandura kune Masenso maviri
Labkotec SET-2000
Labkotec Oy Myllyhaantie 6FI-33960 PIRKKALA FINLAND
Tel: + 358 29 006 260
Fax: + 358 29 006 1260
Internet: www.labkotec.fi
Installation uye Operating Mirayiridzo
Isu tinochengeta kodzero yekuchinja pasina chiziviso
ZVIRI MUKATI
| Chikamu | Page |
|---|---|
| 1 ZVAKAWANDA | 3 |
| 2 KUISA | 4 |
| 3 OPERATION UYE MASETINGS | 7 |
| 4 DAMBUDZIKO-KUBVA | 10 |
| 5 KUGADZIRA UYE SERVICE | 11 |
| 6 KUCHENGETEKA MIraidzo | 11 |
GENERAL
Iyo SET-2000 ndeye maviri-channel level switch yakagadzirirwa kune akasiyana maapplication akadai seyepamusoro uye yakaderera nhanho maaramu mumatangi emvura, maaramu emvura akanyungudutswa, kudzora nhanho, uye maaramu mumafuta, jecha, uye girizi zvinoparadzanisa. Mudziyo uyu une zviratidzi zve LED, mabhatani ekusundidzira, uye machinjiro sezvakatsanangurwa mumufananidzo 1.Iyo SET-2000 inogona kushandiswa semutongi wemasensa anowanikwa munzvimbo dzinokwanisa kuputika (zone 0, 1, kana 2) nekuda kwekupinza kwayo kwakachengeteka. . Nekudaro, iyo SET-2000 pachayo inofanirwa kuiswa munzvimbo isina njodzi. Iyo nhanho sensors yakabatana neSET-2000 inogona kuisirwa munzvimbo dzezvikamu zvakasiyana sezvo machani akaparadzaniswa kubva kune mumwe nemumwe. Mufananidzo 2 unoratidza kushandiswa kwakajairwa kweSET-2000, uko inoshandiswa kune yakakwirira uye yakaderera maaramu mumudziyo wemvura.
INSTALLATION
Iyo SET-2000 inogona kukwidziridzwa-kumadziro uchishandisa maburi ekukwira ari mugadziko ndiro yeyakavharirwa, pasi pemakomba anokwirisa evhavha yekumberi.
Zvisungo zvemakonduri ekunze zvakaparadzaniswa nekuparadzanisa mahwendefa. Mahwendefa aya haafaniri kubviswa. Mushure mekuita tambo dzekubatanidza, ndiro inovhara majoini inofanira kuiswa kumashure.
GENERAL
SET-2000 ndeye maviri-channel level switch. Mashandisirwo emhando yepamusoro uye yakaderera nhanho maaramu mumatangi emvura, maaramu emvura akapfupikiswa, kudzora nhanho uye maaramu mumafuta, jecha uye girizi zvinoparadzanisa.
Iwo ma LED zviratidzo, mabhatani ekusundidzira uye maratidziro emudziyo anotsanangurwa mumufananidzo 1.
Mufananidzo 1. SET-2000 level switch - maitiro
SET-2000 inogona kushandiswa semudzori wemazinga masensa anowanikwa munzvimbo dzinoputika (zone 0, 1 kana 2) nekuda kwekuchengetedzwa kwemukati kwemudziyo. Iyo SET-2000 pachayo inofanira kuiswa munzvimbo isina ngozi.
Iyo nhanho sensors, iyo yakabatana neSET-2000, inogona kuiswa munzvimbo dzemhando dzakasiyana, nekuti chiteshi chakaparadzaniswa kubva kune mumwe nemumwe.
Mufananidzo 2. Yakajairika application. Yepamusoro uye yakaderera level alarm mumudziyo wemvura.
INSTALLATION
- Iyo SET-2000 inogona kuiswa pamadziro. Makomba anokwirisa ari muhwaro hwaro hwechivharo, pasi pemakomba anokwirisa evhavha yekumberi.
- Zvisungo zvemakonduri ekunze zvakaparadzaniswa nekuparadzanisa mahwendefa. Mahwendefa haafaniri kubviswa. Iyo ndiro inovhara ma-connectors inofanira kuiswa kumashure mushure mekuita cable connections.
- Chivharo chevhavha chinofanira kusimbiswa kuitira kuti mipendero inobata chigadziko chepasi. Ipapo ndipo panoita kuti mabhatani epush ashande nemazvo uye iyo yakavharirwa yakasimba.
- Usati waiswa, ndapota verenga mirairo yekuchengetedza muchitsauko 6!
Mufananidzo 3. SET-2000 kuisirwa uye kubatana kweSET/OS2 uye SET/TSH2 sensors.
Cabling paunenge uchishandisa cable junction box
Kana iyo sensor tambo ichifanira kuwedzerwa kana paine kudikanwa kweiyo equipotential grounding, inogona kuitwa neiyo cable junction bhokisi. Iyo cabling pakati peSET-2000 control unit uye junction bhokisi inofanira kuitwa neyakavharidzirwa yakamonyoroka pair instrument cable.
LJB2 neLJB3 junction mabhokisi anogonesa tambo yekuwedzera mumhepo inoputika.
Mumuenzanisoampzvishoma munhamba 4 ne5 nhovo uye waya dzakawandisa dzakabatanidzwa kune imwechete nzvimbo mu galvanic kusangana nesimbi furemu yebhokisi rekusangana. Iyi poindi inogona kubatana kune equipotential pasi kuburikidza neiyo pasi terminal. Zvimwe zvikamu zveiyo system inoda kudzikwa inogona zvakare kubatanidzwa kune imwecheteyo pasi terminal. Iyo waya inoshandiswa kune equipotential pasi inofanira kuva min. 2.5 mm² yakachengetedzwa nemuchina kana, kana isina kuchengetedzwa nemuchina, chikamu chidiki chemuchinjiko i4 mm².
Ndapota ita shuwa, kuti tambo dze sensor hadzipfuure iyo inobvumirwa magetsi paramita - ona appendix 2.
Yakadzama cabling mirairo inogona kuwanikwa mune mirairo yeimwe SET sensors.
Level sensors munzvimbo imwechete uye zone
Mune example mumufananidzo 4 masensa emazinga anowanikwa munzvimbo imwechete uye munzvimbo imwechete inoputika-ine njodzi. Cabling inogona kugadzirwa netambo mbiri-mbiri, apo vaviri vaviri vacho vane nhovo dzavo. Ita shuwa, kuti tambo dzechiratidzo dzetambo hadzigone kubatanidzwa kune mumwe nemumwe.
Mufananidzo 4. Level sensor cabling ine junction bhokisi kana nhanho sensors iri munzvimbo imwechete uye imwe nzvimbo.
Level sensors munzvimbo dzakasiyana uye nzvimbo
Level sensors mumufananidzo 5 ari munzvimbo dzakasiyana uye nzvimbo. Zvino kubatanidza zvinofanira kuitwa netambo dzakasiyana. Uyewo zvikonzero zve equipotential zvinogona kuparadzaniswa.
Mufananidzo 5. Cabling ine cable junction bhokisi kana masensa ari munzvimbo dzakasiyana uye nzvimbo.
Junction mabhokisi emhando LJB2 uye LJB3 anosanganisira akareruka alloy zvikamu. Paunenge uchiisa mumhepo inoputika, ita shuwa, kuti bhokisi rekusangana riripo, kuti rirege kukuvadzwa nemichina kana kuti rirege kuoneswa kune zvekunze zvinokanganisa, friction nezvimwe zvichikonzera kubatidza kwepfarivari.
Ita shuwa, kuti junction yakavharwa nemazvo.
OPERATION AND SETTINGS
Iyo SET-2000 control unit inotangwa pafekitori sezvinotevera. Ona tsananguro yakadzama muchitsauko 3.1 Operation.
- Channel 1
Alarm inoitika kana iyo nhanho ichirova sensor (yakakwira level alarm) - Channel 2
Alarm inoitika kana iyo nhanho ichisiya sensor (yakaderera level alarm) - Relay 1 kusvika 2
Relays de-energize mune dzakateerana chiteshi 'alarm uye kukanganisa mamiriro (inonzi kutadza-yakachengeteka kushanda).
Kunonoka kwekushanda kwakaiswa kumasekonzi mashanu. Iyo trigger level inowanzo iri pakati peiyo sensor's sensing element.
Operation
Kushanda kwefekitari-yakatangwa SET-2000 inotsanangurwa muchitsauko chino.
Kana kushanda kusiri sekutsanangurwa pano, tarisa marongero uye mashandiro (chitsauko 3.2) kana kubata mumiriri wemugadziri.
| Normal mode - hapana maaramu | Chiyero chiri mutangi chiri pakati pemasensa maviri. |
| Mains LED chiratidzo chakabatidzwa. | |
| Zvimwe zviratidzo zve LED zvakadzimwa. | |
| Relays 1 uye 2 ane simba. | |
| High level alarm | Iyo nhanho yakarova iyo yakakwirira level sensor (sensor mukati mepakati). |
| Mains LED chiratidzo chakabatidzwa. | |
| Sensor 1 Alarm LED chiratidzo chabatidzwa. | |
| Buzzer on after 5 sec kunonoka. | |
| Relay 1 de-energizes mushure me5 sec kunonoka. | |
| Relay 2 inoramba ine simba. | |
| Low level alarm | Iyo nhanho iri pazasi yakaderera level sensor (sensor mumhepo). |
| Mains LED chiratidzo chakabatidzwa. | |
| Sensor 2 Alarm LED chiratidzo chabatidzwa. | |
| Buzzer on after 5 sec kunonoka. | |
| Relay 1 inoramba ine simba. | |
| Relay 2 de-energizes mushure me5 sec kunonoka. | |
| Mushure mekubviswa kwearamu, iyo inoteedzana alarm ye LED zviratidzo uye buzzer ichave yakadzimwa uye inoteedzana relay inopihwa simba mushure mekunonoka kwegumi. | |
| Fault alarm | Sensor yakatyoka, sensor cable break kana kupfupika kwedunhu, kureva kuti yakaderera kana yakanyanya kukwira sensor chiratidzo chazvino. |
| Mains LED chiratidzo chakabatidzwa. | |
| Sensor tambo Fault LED chiratidzo chiripo mushure me5 sec kunonoka. | |
| Iyo relay yeakasiyana chiteshi de-energizes mushure me5 sec kunonoka. | |
| Buzzer inobatidzwa mushure me5 sec kunonoka. | |
| Kugadzirisazve alarm | Paunenge uchidzvanya Reset push bhatani. |
| Buzzer ichaenda. | |
| Relays haizochinji chimiro chavo alarm chaiyo kana kukanganisa kusati kwadzimwa. |
TEST BASA
Basa rekuyedza rinopa alarm yekugadzira, iyo inogona kushandiswa kuyedza basa reSET-2000 level switch uye basa remimwe michina, iyo yakabatana neSET-2000 kuburikidza neiyo relays.
| Attention! Usati wadzvanya bhatani reMuedzo, ita shuwa kuti shanduko yerelay chinzvimbo haikonzere njodzi kune imwe nzvimbo! | |
| Normal situation | Paunenge uchidzvanya bhatani reTest push: |
| Alarm uye Fault LED zviratidzo zvinongobatidzwa. | |
| Buzzer inobva yatanga. | |
| Relays inobvisa-energize mushure me2 sec yekuenderera mberi nekudzvanya. | |
| Kana bhatani reTest push raburitswa: | |
| Zviratidzo zve LED uye buzzer zvinoenda pakarepo. | |
| Relays inopa simba nekukurumidza. | |
| High level kana low level alarm yakabatidzwa | Paunenge uchidzvanya bhatani reTest push: |
| Mhosva dze LED zviratidzo zvinongobatidzwa. | |
| Iyo Alarm LED chiratidzo cheiyo inotyisa chiteshi inoramba iripo uye iyo yakatarisana relay inoramba isina-simba. | |
| Alarm LED chiratidzo cheimwe chiteshi chiripo uye relay inopedza simba. | |
| Buzzer inoramba iripo. Kana yakagadziridzwa kare, ichadzoka kuti ibatike. | |
| Kana bhatani reTest push raburitswa: | |
| Chishandiso chinodzoka pasina kunonoka kune chimiro chakapfuura. | |
| Aramu yemhosva yakabatidzwa | Paunenge uchidzvanya Test push bhatani: |
| Chishandiso hachiite maererano nechaneti chinokanganisa. | |
| Iyo mudziyo inobata sekutsanangurwa pamusoro apa maererano neiyo inoshanda chiteshi. | |
Altering settings
Kana iyo default mamiriro yatsanangurwa pamusoro isingashande kune saiti iri kuyerwa, inotevera mudziyo marongero anogona kuchinjwa.
| Operating direction | High level kana yakaderera level basa (kuwedzera kana kuderera level). |
| Kunonoka kwekushanda | Dzimwe nzira mbiri: 5 sec kana 30 sec. |
| Trigger level | Chengetedza poindi yearamu mune iyo sensor's sensing element. |
| Buzzer | Iyo buzzer inogona kudzimwa. |
Mabasa anotevera anofanira kungoitwa nemunhu ane dzidzo yakakodzera uye ruzivo rweEx-i zvishandiso. Isu tinokurudzira, kuti kana uchichinja marongero iwo mains voltage yakadzimwa kana mudziyo unotanga kugadzwa kusati kwaitwa.
Izvo zvigadziriso zvinoshandurwa uchishandisa ekumusoro redunhu bhodhi switch (MODE uye DELAY) uye potentiometer (SENSITIVITY) uye yepasi redunhu bhodhi's jumpers (Sensor sarudzo uye Buzzer). Iwo maswiti anoratidzwa mukumisikidza kwavo kwakasarudzika mune redunhu bhodhi nhamba (mufananidzo 6).
OPERATING DIRECTION SETTING (MODE)
Shanduko S1 uye S3 inoshandiswa kuseta nzira yekushandisa. Kana iyo switch iri munzvimbo yayo yakaderera Alarm LED chiratidzo pamwe nebuzzer iripo uye relay de-energizes kana iyo yemvura level iri pasi peiyo trigger level ye sensor (yakaderera level mode). Ichi chigadziro chinoshandiswawo, kana alarm ye-oiri-layer pamvura inodiwa.
Kana iyo switch iri munzvimbo yayo yepamusoro iyo Alarm LED chiratidzo pamwe nebuzzer ichave iripo uye relay de-energizes kana iyo yemvura level iri pamusoro peiyo sensor's trigger level (yakakwira level mode).
OPERATIONAL DELAY SETTING (KUnonoka)
- Shanduko S2 uye S4 inoshandiswa kuseta kunonoka kwekushanda kwechishandiso. Kana switch iri munzvimbo yakaderera relays deenergize uye buzzer iripo mushure me5 seconds mushure mekunge nhanho yasvika trigger level, kana nhanho ichiri kuramba iri kudivi rimwe chete redanho rekutanga.
- Kana switch iri munzvimbo yepamusoro, kunonoka ndeye 30 seconds.
- Kunonoka kunoshanda mumativi ese ari maviri (kusimbisa, kuderedza) Alarm LEDs dzinotevera sensor ikozvino kukosha uye trigger level pasina kunonoka. Fault LED ine yakagadziriswa 5 sec kunonoka.
TRIGGER LEVEL KUGADZIRA (SENSITIVITY)
Trigger level setting inoitwa sezvinotevera:
- Nyura iyo sensor inonzwa chinhu kune yepakati kusvika paurefu hwaunoda - ona mirairo ye sensor, kana zvichidikanwa.
- Tenderedza potentiometer saka, kuti Alarm LED iripo uye relay de-energizes - ndapota teerera kunonoka kwekushanda.
- Tarisa basa nekusimudza sensor kumhepo uye kuinyudza ichidzokera kupakati.
DAMBUDZIKO-KUSVIRA
Dambudziko:
MAINS LED chiratidzo chakadzimwa
Chingangove chikonzero:
Mugove voltage yakadzikira zvakanyanya kana kuti fuse inofuridzirwa. Transformer kana MAINS LED chiratidzo chakashata.
Kuita:
- Tarisa uone kana maviri pole mains switch yakadzimwa.
- Tarisa fuse.
- Kuyera voltage pakati pematanda N uye L1. Inofanira kuva 230 VAC ± 10%.
Dambudziko:
FAULT LED chiratidzo chakabatidzwa
Chingangove chikonzero:
Ikozvino mune sensor seketi yakadzikira (tambo yekupwanya) kana yakawandisa (tambo mupfupi wedunhu). Iyo sensor inogona zvakare kuputswa.
Kuita:
- Ita shuwa, kuti iyo sensor tambo yakabatana nemazvo kune SET-2000 control unit. Ona mirairo chaiyo ye sensor.
- Kuyera voltage zvakasiyana pakati pematanda 10 ne11 pamwe ne13 ne14.tages inofanira kuva pakati pe10,3….11,8 V.
- Kana voltages dzakarurama, kuyera sensor ikozvino imwe chiteshi panguva. Ita sezvinotevera:
- Bvisa sensor's [+] waya kubva kune sensor connector (mapango 11 ne13).
- Yera dunhu diki riripakati pe [+] ne [-] mapango.
- Batanidza mA-mita semumufananidzo 7.
- Ita kuenzanisa kune zvakakosha muTebhu 1. Zvimwe zvakanyatsotsanangurwa maitiro emazuva ano anowanikwa mumirayiridzo yemirairo chaiyo ye sensor.
- Batanidza waya/waya kudzoka kune imwe yekubatanidza(s).
Kana matambudziko asingakwanise kugadziriswa nemirayiridzo iri pamusoro, ndapota taura neLabkotec Oy's muparidzi wenzvimbo kana sevhisi yeLabkotec Oy.
Attention! Kana iyo sensor iri mumhepo inoputika, iyo multimeter inofanirwa kuve Ex-inotenderwa!
Mufananidzo 7. Sensor ikozvino kuyerwa
Tafura 1. Sensor currents
|
Channel 1 Mapango
10 [+] uye 11 [-] |
Channel 2 Mapango
13 [+] uye 14 [-] |
|
| Short circuit | 20 mA - 24 mA | 20 mA - 24 mA | |
| Sensor mumhepo | <7 mA | <7 mA | |
| Sensor mumvura
(er. 2) |
> 8 mA | > 8 mA | |
| Sensor mumvura | > 10 mA | > 10 mA |
KUGADZIRIRA UYE SERVICE
Iyo mains fuse (yakanyorwa 125 mAT) inogona kuchinjirwa kune imwe girazi chubhu fuse 5 x 20 mm / 125 mAT inoenderana EN IEC 60127-2/3. Chero kumwe kugadzirisa uye sevhisi inoshanda pamudziyo inogona kuitwa chete nemunhu akagamuchira kudzidziswa muEx-i zvishandiso uye anotenderwa nemugadziri.
Kana paine mibvunzo, ndapota taura neLabkotec Oy's service.
KUCHENGETEKA MITIRO
| SET-2000 level switch haifanirwe kuiswa mumhepo inoputika. Masensa akabatana nayo anogona kuiswa munzvimbo inoputika yemhepo 0, 1 kana 2.
Kana pakaiswa mumhepo inoputika, zvinodiwa nenyika uye zviyero zvinoenderana seEN IEC 50039 uye/kana EN IEC 60079-14 inofanira kuverengerwa. |
| Kana ma electrostatic discharges achigona kukonzera njodzi munzvimbo yekushanda, mudziyo unofanirwa kubatanidzwa mu equipotential pasi zvichienderana nezvinodiwa maererano nemhepo inoputika. Equipotential pasi inogadzirwa nekubatanidza ese conductive zvikamu mune imwechete inogona semuenzaniso pane cable junction box. Equipotential ground inofanira kuvharwa. |
| Chishandiso chacho hachisanganisi chinja chemagetsi. A maviri pole mains switch (250 VAC 1 A), iyo inoparadzanisa mitsara miviri (L1, N) inofanirwa kuiswa mumitsetse yemagetsi emagetsi padhuze neyuniti. Switch iyi inofambisa kugadzirisa uye kushanda kwesevhisi uye inofanirwa kumakwa kuratidza iyo unit. |
| Paunenge uchiita sevhisi, kuongorora uye kugadzirisa mumhepo inoputika, mitemo iri mumiyero EN IEC 60079-17 uye EN IEC 60079-19 nezve mirairo yeEx-midziyo inofanirwa kutevedzwa. |
MASHOKO OKUWEDZERA
Appendix 1 Technical data
| SET-2000 | ||||
| Dimensions | 175 mm x 125 mm x 75 mm (L x H x D) | |||
| Enclosure | IP 65, zvinhu polycarbonate | |||
| Cable glands | 5 pcs M16 yetambo dhayamita 5-10 mm | |||
| Nzvimbo yekushanda | Tembiricha: -25 °C…+50 °C
Max. kureba pamusoro pegungwa 2,000 m Relative humidity RH 100% Inokodzera kushandiswa kwemukati nekunze (yakachengetedzwa kubva kumvura yakananga) |
|||
| Mugove voltage | 230 VAC ± 10 %, 50/60 Hz
Fuse 5 x 20 mm 125 mAT (EN IEC 60127-2/3) Chishandiso chacho hachina kugadzirwa ne mains switch |
|||
| Simba rekushandisa | 4 VA | |||
| Sensors | 2 pcs. yeLabkotec SET yakatevedzana masensa | |||
| Max. kushorwa kweiyo loop iripo pakati peiyo control unit uye sensor | 75 Ω. Ona zvimwe mu appendix 2. | |||
| Relay zvinobuda | Zviviri zvinogona-yemahara relay kubuda 250 V, 5 A, 100 VA
Kushanda kunonoka 5 sec kana 30 sec. Relays de-energize at trigger point. Operation mode inosarudzwa yekuwedzera kana kudzikira level. |
|||
|
Kuchengetedzwa kwemagetsi |
EN IEC 61010-1 Kirasi II Dhigirii 2 |
, CAT II / III, KUSVIRWA |
||
| Insulation level Sensor / Mains inopa Channel 1 / Channel 2 | 375V (EN IEC 60079-11) | |||
| EMC |
Emission Immunity |
EN IEC 61000-6-3 EN IEC 61000-6-2 |
||
| Ex-classification
Mamiriro akakosha(X) |
II (1) G [Ex ia Ga] IIC (Ta = -25 C…+50 C) | |||
| ATEX IECEx UKEX | EESF 21 ATEX 022X IECEx EESF 21.0015X CML 21UKEX21349X | |||
| Magetsi parameters | Uo = 14,7 V | Io = 55 mA | Po = 297 mW | |
| Hunhu curve yekubuda voltage is trapezoidal. | R = 404 Ω | |||
| IIC | Co = 608 nF | Lo = 10 mH | Lo/Ro = 116,5 µH/Ω | |
| IIB | Co = 3,84 µF | Lo = 30 mH | Lo/Ro = 466 µH/Ω | |
| Attention ! Ona appendikisi 2. | ||||
| Gore rekugadzira:
Tapota ona serial nhamba pane type plate |
xxx xxxxx xx YY x
uko YY = gore rekugadzira (semuenzaniso 22 = 2022) |
|||
Appendix 2 Cabling uye magetsi parameters
Paunenge uchiisa mudziyo, ita shuwa kuti magetsi emagetsi etambo pakati peSET-2000 uye sensors haambopfuure yakakwira magetsi paramita. Cabling iri pakati peSET-2000 control unit uye cable extension junction box inofanira kuitwa sezviri munhamba 5 ne6. Tambo yekuwedzera inofanira kunge yakavharirwa paired twisted instrument cable. Nekuda kweasina-mutsara maitiro eiyo sensor voltage, kupindirana kwezvose zviri zviviri, capacitance uye inductance, inofanira kuverengerwa. Tafura iri pasi apa inoratidza hukama hwekubatanidza mumapoka ekuputika IIC neIIB. Muboka rinoputika IIA maitiro eboka IIB anogona kuteverwa.
- Uo = 14,7 V
- Io = 55 mA
- Po = 297 mW
- R = 404 Ω
Hunhu hwekubuda voltage is trapezoidal.
| Max. | kukosha kunobvumirwa | Zvese zviri zviviri Co naLo | ||
| Co | Lo | Co | Lo | |
| 568nF | 0,15 mH | |||
| 458 nF | 0,5 mH | |||
| II C | 608nF | 10 mH | 388 nF | 1,0 mH |
| 328 nF | 2,0 mH | |||
| 258 nF | 5,0 mH | |||
| 3,5µF | 0,15 mH | |||
| 3,1µF | 0,5 mH | |||
| II B | 3,84μF | 30 mH | 2,4µF | 1,0 mH |
| 1,9µF | 2,0 mH | |||
| 1,6µF | 5,0 mH | |||
- Lo/Ro = 116,5 :H/S (IIC) uye 466 :H/S (IIB)
Tafura 2. Magetsi parameters
Urefu hwehurefu hwetambo ye sensor inotarirwa nekupikisa (max. 75 Ω) uye mamwe magetsi emagetsi (Co, Lo uye Lo / Ro) emagetsi emagetsi.
| Example: | Kusarudza kureba kwetambo yakareba |
| Instrument cable ine zvinotevera maitiro inoshandiswa:
- DC kuramba kwewaya mapatya pa + 20°C inenge. 81 Ω / km. - Inductance ndeye approx. 3 μH / m. – Capacitance is approx. 70 nF/km. |
|
| Pesvedzero yekuramba | Kufungidzira kwekuwedzera kupokana mudunhu ndeye 10 Ω. Hurefu hwepamusoro ndeye (75 Ω - 10 Ω) / (81 Ω / km) = 800 m. |
| Iyo pesvedzero ye inductance uye capacitance ye800 m tambo ndeye: | |
| Kufurira kwe inductance | Yese inductance ndeye 0,8 km x 3 μH/m = 2,4 mH. Kukosha kwehuwandu hwetambo uye
semuenzaniso SET/OS2 sensor [Li = 30 μH] iri 2,43 mH. L / R chiyero saka 2,4 mH / (75 - 10) Ω = 37 μH / Ω, iyo iri pasi pehuwandu hunobvumirwa kukosha 116,5 μH / Ω. |
| Kufurira kwe capacitance | Cable capacitance ndeye 0,8 km x 70 nF/km = 56 nF. Kukosha kwakasanganiswa kwetambo uye eg SET/OS2 sensor [Ci = 3 nF] ndeye 59 nF. |
| Kana tichienzaniswa nehukoshi huri patafura 2, tinogona kupfupisa kuti pamusoro pehukoshi haudzikisire kushandiswa kweiyo chaiyo 800 m tambo mumapoka anoputika IIB kana IIC.
Kugoneka kwemamwe marudzi etambo uye sensors kune akasiyana madaro anogona kuverengerwa zvinoenderana. |
Labkotec Oy Myllyhaantie 6, FI-33960 Pirkkala, Finland Tel. +358 29 006 260 info@labkotec.fi DOC001978-EN-O
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Labkotec SET-2000 Level Shandura kune Masenso maviri [pdf] Bhuku reMirayiridzo D15234DE-3, SET-2000, SET-2000 Level Switch for Two Sensors, Level Switch for Two Sensors, Switch for Two Sensors, Two Sensors, Sensors. |