ʻO Daviteq MBRTU-PODO Optical Dissolved Oxygen Sensor me ka hoʻopuka Modbus
Hoʻolauna
Optical Dissolved Oxygen Sensor me Modbus output MBRTU-PODO
- ʻO ka ʻenehana oxygen dissolved optical kūpono a haʻahaʻa hoʻi (hoʻopau luminescent).
- RS485/Modbus hōʻailona puka.
- ʻOihana maʻamau, hale kino paʻa me 3⁄4 "NPT ma mua a ma hope.
- Hiki ke hoʻokuʻu ʻia: ke kaula paʻa (0001) a me ke kaula hiki ke wehe (0002).
- Hoʻohui ʻia (hoʻopaʻa ʻia i ka hoʻopaʻa ʻia ʻana) ʻike wai ʻole.
- ʻOkoʻa ka wela a me ke kaomi pānaʻi.
- Ka uku paʻakai 'akomi me ka waiwai hoʻokomo o ka mea hoʻohana.
- Hoʻololi i ka pāpale sensor maʻalahi me ka calibration i hoʻohui ʻia.
KE ana i ka oxygen i hooheheeia i ka wai
Hōʻike
| Kaulana | DO Saturation%: 0 a 500%. DO ka hoʻopaʻa 'ana: 0 a 50 mg/L (ppm). Ka Mahana Hana: 0 a 50°C. Ka Mahana Waihona: -20 a 70°C. ʻO ke kaomi ʻana i ka lewa: 40 a 115 kPa. ʻO ke kaumaha o ka lawe ʻana: 1000 kPa. |
| Manawa pane | Hana: T90 ~ 40s no 100 a 10%. Mahana: T90 ~ 45s no 5 – 45oC (me ka hoʻoulu ʻana). |
| Ka pololei | Hana: 0-100% < ± 1 %. 100-200% < ± 2 %. Mahana: ± 0.2 °C. Pumi: ± 0.2 kPa. |
| Hoʻokomo / hoʻopuka / protocol | Komo: 4.5 – 36 V DC. Hoʻohana: 60 mA awelika ma 5V. Puka: RS485/Modbus a i ʻole UART. |
| Hoʻolālikelike |
|
| DO Nā kumu uku | Mahana: 'akomi, piha piha.
Salinity: ʻakomi me ka hoʻokomo-mea hoʻohana (0 a 55 ppt). Paʻi:
|
| Olelo Hooholo | Ka laulā haʻahaʻa (<1 mg/L): ~ 1 ppb (0.001 mg/L). Ka waena waena (<10 mg/L): ~ 4-8 ppb (0.004-0.008 mg/L). Kiekie (>10 mg/L): ~10 ppb (0.01 mg/L).* * ʻO ka laulā kiʻekiʻe, ka hoʻonā haʻahaʻa. |
| Manaʻo ʻia ke ola Cap Sensor | Hiki ke ola pono a hiki i 2 mau makahiki i nā kūlana kūpono. |
| ʻO nā mea ʻē aʻe | Ka wai: IP68 helu me ke kaula paʻa. Nā palapala hōʻoia: RoHs, CE, C-Tick (ma ke kaʻina hana). Mea Hana: Ryton (PPS) kino. Ka lōʻihi o ke kelepona: 6 m (nā koho). |
Nā Kiʻi Huahana
KA HANA OPTICAL DISSOLVED OXYGEN SENSOR MBRTU-PODO
MBRTU-PODO-H1 .PNG
Ueaea
E ʻoluʻolu e hoʻopaʻa inoa e like me ka mea i hōʻike ʻia ma lalo nei:
| Uea kala kala | wehewehe |
| ʻulaʻula | Mana (4.5 ~ 36 V DC) |
| ʻeleʻele | GND |
| ʻōmaʻomaʻo | UART_RX (no ka hoʻonui ʻana a i ʻole ka pilina PC) |
| Keʻokeʻo | UART_TX (no ka hoʻonui ʻana a i ʻole ka pilina PC) |
| Melemele | RS485A |
| Polū | RS485B |
Nānā: Hiki ke ʻoki ʻia nā uea UART ʻelua inā ʻaʻole e hoʻomaikaʻi a hoʻopololei.
Kalibra a me ke ana
DO Calibration ma nā koho
Hoʻoponopono hou i ka calibration
a) Hoʻonohonoho hou i ka 100% calibration.
Kākau ka mea hoʻohana iā 0x0220 = 8
b) Hoʻoponopono hou i ka 0% calibration.
Kākau ka mea hoʻohana iā 0x0220 = 16
c) Hoʻoponopono hou i ka calibration mahana.
Kākau ka mea hoʻohana iā 0x0220 = 32
1-helu calibration
ʻO ka calibration 1-point, ʻo ia ka calibrating i ka probe ma kahi o 100% saturation, hiki ke loaʻa ma kekahi o kēia mau ʻano:
a) I loko o ka wai i hoʻopiha ʻia e ka ea (ʻano maʻamau).
ʻO ka wai i piha i ka ea (no ka example o 500 mL) hiki ke loaʻa ma ka hoʻomau (1) hoʻomaʻemaʻe i ka wai me ka ea me ka hoʻohana ʻana i ka ea bubbler a i ʻole kekahi ʻano o ka aeration e pili ana i 3 ~ 5 mau minuke, a i ʻole (2) hoʻoulu ʻana i ka wai e ka mea hoʻoheheʻe magnetic ma lalo o 800 rpm no 1 hola.
Ma hope o ka mākaukau ʻana o ka wai i hoʻopiha ʻia e ka ea, e hoʻokomo i ka pāpale ʻike a me ka ʻike wela o ka ʻimi i loko o ka wai i hoʻopiha ʻia e ka ea, a e calibrate i ka ʻimi ma hope o ka paʻa ʻana o ka heluhelu ʻana (maʻa mau 1 ~ 3 mau minuke).
Kākau ka mea hoʻohana iā 0x0220 = 1 , a laila kali i 30 kekona.
Inā ʻaʻole i 0 ± 0102% ka heluhelu hope ʻana o 100x0.5, e ʻoluʻolu e nānā i ka paʻa o ka hoʻāʻo ʻana o kēia manawa a i ʻole e hoʻāʻo hou.
b) I loko o ka ea piha wai (ʻano maʻalahi).
ʻO kahi ʻē aʻe, hiki ke hana maʻalahi ka calibration 1-pt me ka hoʻohana ʻana i ka ea i hoʻopiha ʻia i ka wai, akā 0 ~ 2% hewa paha ke kumu ma muli o nā hana like ʻole. Hāʻawi ʻia nā kaʻina hana i ʻōlelo ʻia ma lalo nei:
i) hoʻokomo i ka pāpale ʻike a me ka ʻike wela o ka ʻimi i loko o ka wai hou/piu wai 1 ~ 2 mau minuke.
ii) e hele i waho o ka ʻimi noiʻi a hoʻomaloʻo koke i ka wai ma ka ʻili o ka pāpale ʻike ma ka ʻiʻo.
iii) e hoʻokomo i ka hope ʻike i loko o ka ʻōmole calibration/storage me kahi ʻōhuʻu pulu i loko. Hōʻalo i ka hoʻopili pololei ʻana i ka pāpale sensor me kekahi wai i loko o ka ʻōmole calibration/storage i kēia kaʻina calibration. E mālama i ka mamao ma waena o ka pāpale sensor a me ka ʻōhuʻu pulu he ~ 2 knm.
v) kali no ka hoʻopaʻa ʻana o nā heluhelu (2 ~ 4 mau minuke) a laila kākau i ka 0x0220 = 2.
2-helu kalibration (100% a me 0% saturation points)
(i) E hoʻokomo i ka ʻimi noiʻi i loko o ka wai i piha i ka ea, e kākau i ka 0x0220 = 1 ma hope o ka paʻa ʻana o ka heluhelu DO.
(ii) Ma hope o ka lilo ʻana o ka heluhelu DO i 100%, e hoʻoneʻe i ka ʻimi i ka wai oxygen ʻole (e hoʻohana i ka sodium sulfide i hoʻohui ʻia i kahi ʻoi
wai sample).
(iii) Kākau i ka 0x0220 = 2, ma hope o ka paʻa ʻana o ka heluhelu DO (~ ma kahi o 2 min).
- (iv) ʻO ka mea hoʻohana heluhelu saturation ma 0x0102 no 1-point calibration, 0x0104 no 2-point calibration.
ʻAʻole pono ka 2-point cal no ka hapa nui o nā noi, ke ʻole pono nā mea hoʻohana i ke ana pololei loa i ka haʻahaʻa DO haʻahaʻa (<0.5 ppm). - ʻAʻole ʻae ʻia ka hoʻokō ʻana i ka "0% calibration" me ka "100% calibration".
Hoʻoponopono kiko no ka mahana
i) Kākau ka mea hoʻohana i ka 0x000A = ka mahana ambient x100 (Ex: Inā ka wela o ka puni = 32.15, a laila kākau ka mea hoʻohana i 0x000A=3215).
ii) Ka wela heluhelu mea hoʻohana ma 0x000A . Inā like ia me ka mea āu i hoʻokomo ai, ua pau ka calibration. Inā ʻaʻole, e ʻoluʻolu e hoʻāʻo hou i ka ʻanuʻu 1.
ʻO Modbus RTU Protocol
Hoʻolālā kauoha:
- ʻAʻole pono e hoʻouna ʻia nā kauoha ma mua o 50mS mai ka pau ʻana o ka pane hope.
- Inā ʻaʻole ʻike ʻia ka pane i manaʻo ʻia mai ke kauā no > 25mS, e hoʻolei i kahi hewa kamaʻilio.
- Hoʻopili ʻo Probe i ka maʻamau Modbus no nā hana 0x03, 0x06, 0x10, 0x17
Hoʻolālā hoʻoili Serial:
- Nui nā ʻano ʻikepili ke ʻole i ʻike ʻia.
- Loaʻa i kēlā me kēia hoʻoili RS485: hoʻokahi bit hoʻomaka, 8 bit data, ʻaʻohe parity bit, a me ʻelua mau pani pani;
- Ka helu Baud Default: 9600 (hiki i kekahi o nā probes ka Baudrate o 19200);
- Helu wahi kauā paʻamau: 1
- ʻO nā bit data 8 i hoʻouna ʻia ma hope o ka bit hoʻomaka ʻo ia ka bit nui loa ma mua.
- Kaʻina Bit
| Hoʻomaka iki | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Kū iki |
Ka manawa
- Pono e hoʻokō ʻia nā hoʻolaha firmware i loko o 5 kekona o ka mana a i ʻole ka hoʻoponopono hou ʻana i ka ʻaoʻao Probe tip E polū paʻa ka LED i kēia manawa.
- ʻAʻole hiki ke holo ʻia ke kauoha mua ma mua o 8 kekona mai ka mana a i ʻole ka hoʻoponopono hou ʻana
- Inā ʻaʻohe pane i manaʻo ʻia mai kahi manawa kauoha i hoʻopuka ʻia ma hope o 200ms
Modbus RTU protocol:
| Kakau # | R/W | Nā kikoʻī | ʻAno | Nā memo |
| 0x0003 | R | LDO (mg/L) x100 | Uint16 | |
| 0x0006 | R | Kekahi % x100 | Uint16 | |
| 0x0008 | R/W | Paʻakai (ppt) x100 | Uint16 | |
| 0x0009 | R | Ke kaomi (kPa) x100 | Uint16 | |
| x000A | R | Mahana (°C) x100 | Uint16 | |
| 0x000F | R | Pākuʻi Baud | Uint16 | Nānā 1 |
| 0x0010 | R | Olelo Hookauwa | Uint16 | |
| 0x0011 | R | ʻImi ʻimi | Uint32 | |
| 0x0013 | R | ʻIkepili Puʻupuʻu Sensor | Uint32 | |
| 0x0015 | R | ʻO ka Probe Firmware Version x100 | Uint16 | Nānā 2 |
| 0x0016 | R | Hoʻoponopono Liʻiliʻi ʻo Firmware | Uint16 | Nānā 2 |
| 0x0063 | W | Pākuʻi Baud | Uint16 | Nānā 1 |
| 0x0064 | W | Olelo Hookauwa | Uint16 | |
| 0x0100 | R | LDO (mg/L) | Lanakila | |
| 0x0102 | R | Saturation % | Lanakila | |
| 0x0108 | R | Ke kaomi (kPa) | Lanakila | |
| 0x010A | R | Mahana (°C) | Lanakila | |
| 0x010C. | R/W | Ka lā hoʻokolokolo o kēia manawa | 6 byte | Nānā 3 |
| 0x010F | R | Nā ʻāpana hewa | Uint16 | Nānā 4 |
| 0x0117 | R | Paʻakai (ppt) | Lanakila | |
| 0x0132 | R/W | Hoʻopaʻa wela | Lanakila | |
| 0x0220 | R/W | ʻO nā Bits Calibration | Uint16 | Nānā 5 |
| 0x02CF | R | Helu Serial Cap Membrane | Uint16 | |
| 0x0300 | W | Hoʻomaka hou mālie | Uint16 | Nānā 6 |
Nānā:
- Nānā 1: Nā helu helu baud: 0= 300, 1= 2400, 2= 2400, 3= 4800, 4= 9600, 5= 19200, 6=38400, 7= 115200.
- Nānā 2: ʻO ka helu firmware ka helu 0x0015 i puʻunaue ʻia e 100, a laila kahi decimal a laila helu 0x0016. Example: inā 0x0015 = 908 a me 0x0016 = 29, a laila ʻo v9.08.29 ka mana firmware.
- Nānā 3: ʻAʻohe RTC i ka Probe, inā ʻaʻole hāʻawi ʻia ka mana hoʻomau a hoʻonohonoho hou ʻia nā waiwai āpau i ka 0.
ʻO nā paina lā ka makahiki, ka mahina, ka lā, ka lā, ka hola, ka minuke, kekona. ʻO ka mea nui i ka mea liʻiliʻi.
Example: iftheuserwrites0x010C=0x010203040506, a laila hoʻonoho ʻia kaDatetime i Pepeluali 3, 2001 4:05:06 am. - Nānā 4: Ua helu ʻia nā bits i mea liʻiliʻi loa i ka hapa nui, e hoʻomaka ana ma 1:
- Bit 1 = Hapa Kalibration Ana.
- Bit 3 = ʻO ka Mahana Probe ma waho o ka laulā, 120 °C kiʻekiʻe.
- Bit 4 = Hoʻopaʻa ʻia ma waho o ka laulā: ka liʻiliʻi 0 mg/L, ka palena kiʻekiʻe 50 mg/L. o Bit 5 = Hapa Pumi Pumi Kipi.
- Bit 6 = ʻO ke kaomi ʻana ma waho o ka laulā: 10 kPa liʻiliʻi, 500 kPa kiʻekiʻe.
E hoʻohana ka Probe i ke kaomi paʻamau = 101.3 kPa. - Bit 7 = Ke kuhi ʻana o ka Sensor Pressure Communication, e hoʻohana ka Probe i ke kaomi paʻamau = 101.3 kPa.
Nānā 5:Kākau (0x0220) 1 Holo 100% calibration. 2 Holo 0% calibration. 8 Hoʻoponopono hou i ka 100% calibration. 16 Hoʻoponopono hou i ka 0% calibration. 32 Hoʻoponopono hou i ka calibration wela.
- Note 6: Inā kākau ʻia ʻo 1 i kēia helu wahi e hana ʻia kahi hoʻomaka hou ʻana, ʻaʻole nānā ʻia nā mea heluhelu a pau.
Nānā 7: inā loaʻa i ka ʻimi noiʻi i kūkulu ʻia i loko o ka ʻenekona kaomi he helu heluhelu wale nō kēia.
Nānā 8: ʻO kēia mau Waiwai he mau hopena o ka hoʻoponopono ʻana i nā helu 2, ʻoiai ʻo ka helu helu o 0x0003 a me 0x0006 e hōʻike ana i nā hopena o 1 helu calibration.
Example Nā hoʻoili
CMD: Heluhelu i ka ʻikepili Probe
Hex Maka: 01 03 0003 0018 B5C0
| Heluhelu | Kauoha | Hoʻomaka Wahi | # o na kakau inoa | CRC |
| 0x01 | 0x03 | 0x0003 | 0x0018 | 0xB5C0 |
| 1 | Heluhelu | 3 | 0x18 |
Example 1 pane mai ka noiʻi:
Hex Raw: 01 03 30 031B 0206 0000 2726 0208 0BB8 27AA 0AAA 0000 0000 0000 0BB8 0005 0001 0001 0410 0457 0000 038 0052 0001 031 2741 FAD0000
Example 2 pane mai ka noiʻi:
Hex Raw: 01 03 30 0313 0206 0000 26F3 0208 0000 27AC 0AC8 0000 0000 0000 0000 0005 0001 0001 0410 0457
0000 038C 0052 0001 031A 2748 0000 5BC0
| Hoʻopili (mg/L) | Saturation % | Paʻakai (ppt) | Ke kaomi (kPa) | Mahana (°C) | ʻO ka helu 2pt (mg/L) | Kekahi % 2pt |
| 0x0313 | 0x26F3 | 0x0000 | 0x27AC | 0x0AC8 | 0x031A | 0x2748 |
| 7.87 mg/L | 99.71% | 0 ppt | 101.56 kPa | 27.60 °C | 7.94 mg/L | 100.56 % |
CMD: Holo i ka 100% Calibration
Hex Maka: 01 10 0220 0001 02 0001 4330
| Heluhelu | Kauoha | Hoʻomaka Wahi | # o na kakau inoa | # o Bytes | Waiwai | CRC |
| 0x01 | 0x10 | 0x0220 | 0x0001 | 0x02 | 0x0001 | 0x4330 |
| 1 | Kākau Nui | 544 | 1 | 2 | Holo 100% Cal |
Example 1 pane mai ka noiʻi:
Hex Raw: 01 10 0220 0001 01BB Pōmaikaʻi!
CMD: Holo i ka 0% Calibration
Hex Maka: 01 10 0220 0001 02 0002 0331
| Heluhelu | Kauoha | Hoʻomaka Wahi | # o na kakau inoa | # o Bytes | Waiwai | CRC |
| 0x01 | 0x10 | 0x0220 | 0x0001 | 0x02 | 0x0002 | 0x0331 |
| 1 | Kākau Nui | 544 | 1 | 2 | Holo 0% Cal |
Example 1 pane mai ka noiʻi:
Hex Raw: 01 10 0220 0001 01BB Pōmaikaʻi!
CMD: Hoʻohou Paʻakai = 45.00 ppt, Pīhoi = 101.00 kPa, a me ka Mahana = 27.00 °C
Hex Maka: 01 10 0008 0003 06 1194 2774 0A8C 185D
| Heluhelu | Kauoha | Hoʻomaka Wahi | # o na kakau inoa | # o Bytes | Waiwai | CRC |
| 0x01 | 0x10 | 0x0008 | 0x0003 | 0x06 | 0x1194 2774 0A8C | 0x185D |
| 1 | Kākau Nui | 719 | 1 | 2 | 45, 101, 27 |
Example 1 pane mai ka noiʻi:
Hex Raw: 01 10 0008 0003 01CA Pōmaikaʻi!
| Heluhelu | Kauoha | Hoʻomaka Wahi | # o na kakau inoa | # o Bytes | Waiwai | CRC |
| 0x01 | 0x10 | 0x02CF | 0x0001 | 0x02 | 0x0457 | 0x751 |
| 1 | Kākau Nui | 719 | 1 | 2 | 1111 |
Example 1 pane mai ka noiʻi:
Hex Raw: 01 10 02CF 0001 304E Pōmaikaʻi!
Anana
KAHAI ANA O MBRTU-PODO (Uni: mm)
Ka malama ana
ʻO ka mālama ʻana i ka ʻimi noiʻi e pili ana i ka hoʻomaʻemaʻe ʻana i ka pāpale sensor, a me ka hoʻomaʻamaʻa kūpono, ka hoʻomākaukau ʻana, a me ka waiho ʻana o ka ʻōnaehana hoʻāʻo.
Ke hoʻohana ʻole ʻia ka probe, makemake nui ʻia e mālama i ka probe me kāna pāpale sensor i hoʻokomo ʻia a me ka calibration/storage bottle i hoʻokomo ʻia i loko o ka pahu mua, i hoʻopaʻa ʻia ma luna o ka probe. Hiki ke lawa ka ipu wai maʻemaʻe a i ʻole ke ʻano hoʻoheheʻe maʻemaʻe/māmā inā ʻaʻole loaʻa ka ʻōmole calibration/storage. Pono e mālama ʻia ka ʻōhuʻu i loko o ka ʻōmole calibration/storage no ka hopena maikaʻi loa.
E hōʻalo i ka pāpale sensor e hoʻopā i ka mea hoʻoheheʻe organik, ka ʻohi ʻana, a me ka hoʻomāinoino ʻana e hoʻoikaika a hoʻolōʻihi i ke ola hana o ka pāpale sensor. Pono e mālama pono i ka hoʻomaʻemaʻe ʻana i ka uhi o ka pāpale, e hoʻopaʻa i ka probe a me ka pāpale i loko o ka wai hou, a laila e hoʻomaloʻo i ka ʻili me kahi ʻiʻo. Mai holoi i ka ʻili o ka uhi.
E hoʻololi i ka pāpale sensor, inā ua mae a wehe ʻia ka uhi ʻana. Mai hoʻopā i ka puka aniani ma ka piko o ka ʻimi ma hope o ka wehe ʻana i ka pāpale kahiko. Inā loaʻa nā mea haumia a i ʻole ke koena ma ka puka makani a i ʻole i loko o ka pāpale, e wehe pono iā lākou me kahi holoi ʻole pauka. A laila e hoʻopaʻa hou i ka pāpale sensor hou ma luna o ka ʻimi.
Palapala / Punawai
 |
ʻO Daviteq MBRTU-PODO Optical Dissolved Oxygen Sensor me ka hoʻopuka Modbus [pdf] Ke alakaʻi hoʻohana MBRTU-PODO Optical Dissolved Oxygen Sensor me Modbus output, MBRTU-PODO, Optical Dissolved Oxygen Sensor me Modbus output, Sensor me Modbus output, Modbus output |
