National Instruments NI-9218 Channel Analogue Input Module
Ƙayyadaddun bayanai
- Sunan samfur: NI-9218
- Nau'in Haɗi: LEMO da DSUB
- Nau'in Ma'auni: Ginin tallafi don nau'ikan iri daban-daban
- Ƙarfafawar Sensor: Ƙaunar 12V na zaɓi
Nau'in Haɗa
NI-9218 yana da nau'in haɗin haɗi fiye da ɗaya: NI-9218 tare da LEMO da NI-9218 tare da DSUB. Sai dai in an ƙayyade nau'in haɗin, NI-9218 yana nufin nau'ikan haɗin biyu.
Saukewa: NI-9218
Signals by Measurement Type
| Yanayin | Pin
1 |
|||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| ± 16 V | EX+ | — | AI-, EX- | — | — | AI + | — | — | — | — |
| ± 65 mV | EX+ 2 [2] | — | EX- [2] | — | — | AI + | AI- 3 | — | — | — |
| Cikakkun
Gada |
EX+ [2] | — | EX- [2] | RS+ | RS- | AI + | AI- | SC | SC | — |
| IEPE | — | AI + | AI- | — | — | — | — | — | — | — |
| TEDS | — | T+ 4 | T- | — | — | — | — | — | — | T+ 5 |
Bayanin sigina
| Sigina | Bayani |
| AI + | Positive analogue input signal connection |
| AI- | Negative analogue input signal connection |
| EX+ | Positive sensor excitation connection |
| EX- | Negative sensor excitation connection |
| RS+ | Positive remote sensing connection |
| RS- | Negative remote sensing connection |
| SC | Shunt calibration connection |
| T+ | TEDS data connection |
| T- | TEDS return connection |
Nau'in Ma'auni
NI-9218 yana ba da tallafi na ciki don nau'ikan auna masu zuwa.
- ± 16 V
- ± 65 mV
- Full-Bridge
- IEPE
- NI-9218 with LEMO only.
- Optional sensor excitation.
- Tie to pin 3.
- TEDS Class 1 data connection.
- TEDS Class 2 data connection.
Tukwici NI recommends using the NI-9982 screw-terminal adapter when using built-in measurement types on the NI-9218.
NI-9218 yana ba da ƙarin tallafi don nau'ikan ma'auni masu zuwa lokacin amfani da takamaiman adaftar ma'auni.
- ±20 mA, requires the NI-9983
- ±60 V, requires the NI-9987
- Half-Bridge requires the NI-9986
- Quarter-Bridge requires the NI-9984 (120 Ω) or NI-9985 (350 Ω)
± 16 V Haɗin kai
NI-9218 yana ba da zaɓi na 12V firikwensin tashin hankali. Don amfani da tashin hankali na 12 V, haɗa wutar lantarki ta 9 VDC zuwa 30 VDC zuwa Vsup, haɗa tashoshi masu motsa rai akan firikwensin ku zuwa EX+/EX-, kuma ba da damar haɓakar 12 V a cikin software ɗin ku.
Magana mai alaƙa:
- NI-9982 ± 16 V Haɗin Haɗin Pinout
± 65 mV Haɗin kai
- You must connect AI to EX- on the NI-9218.
- NI-9218 yana ba da zaɓi na 12V firikwensin tashin hankali. Don amfani da tashin hankali na 12 V, haɗa wutar lantarki ta 9 VDC zuwa 30 VDC zuwa Vsup, haɗa tashoshi masu motsa rai akan firikwensin ku zuwa EX+/EX-, kuma ba da damar haɓakar 12 V a cikin software ɗin ku.
Magana mai alaƙa
- NI-9982 ± 65 mV Haɗin Haɗin Pinout
Haɗin Cikakkun Gada
- The NI-9218 provides 2 V excitation to loads ≥120 Ω or 3.3 V excitation to loads ≥350 Ω.
- The NI-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC). Remote sensing corrects for errors in excitation leads, and shunt calibration corrects for errors caused by resistance within one leg of the bridge.
Magana mai alaƙa:
- NI-9982 Cikakkun Gada Haɗin Pinout
IEPE Connections
- The NI-9218 provides an excitation current for each channel that powers IEPE sensors.
- AI+ provides DC excitation, and AI- provides the excitation return path.
Magana mai alaƙa:
- NI-9982 Haɗin IEPE Pinout
± 20mA Haɗin kai
- Connecting ±20 mA signals requires the NI-9983.
- NI-9218 yana ba da zaɓi na 12V firikwensin tashin hankali. Don amfani da tashin hankali na 12 V, haɗa wutar lantarki ta 9 VDC zuwa 30 VDC zuwa Vsup, haɗa tashoshi masu motsa rai akan firikwensin ku zuwa EX+/EX-, kuma ba da damar haɓakar 12 V a cikin software ɗin ku.
Connecting a loop-powered 2-wire or 3-wire transducer requires adding a 20 kΩ resistor between AI- and Ex-.
Magana mai alaƙa:
- Saukewa: NI-9983
± 60 V Haɗin kai
Connecting ±60 V signals requires the NI-9987.
Magana mai alaƙa:
- Saukewa: NI-9987
Haɗin Half-Bridge
- Connecting half bridges requires the NI-9986.
- The NI-9218 provides 2 V excitation to half bridges of ≥240 Ω total or 3.3 V excitation to half bridges of ≥700 Ω total.
- The NI-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC). Remote sensing corrects for errors in excitation leads, and shunt calibration corrects for errors caused by resistance within one leg of the bridge.
Magana mai alaƙa:
- Saukewa: NI-9986
Haɗin Ƙarter-Bridge
- Connecting 120 Ω quarter bridges requires the NI-9984.
- Connecting 350 Ω quarter bridges requires the NI-9985.
Tukwici NI-recommends 2 V excitation when using a NI-9984 with 120 Ω quarter bridges and 3.3 V excitation when using the NI-9985 with 350 Ω quarter bridges.
Magana mai alaƙa:
- NI-9984/9985
Hanyoyin sadarwa na TDS
For more information about TEDS, visit ni.com/info and enter the Info Code rdteds.
Tallafin TEDS
- TEDS Class 1 na'urori masu auna firikwensin suna ba da hanyar sadarwa don canja wurin bayanai daga na'urori masu auna firikwensin. NI-9218 tare da LEMO, NI-9218 tare da DSUB, NI-9982L, NI-9982D, NI-9982F suna goyan bayan firikwensin TEDS Class 1.
- TEDS Class 2 sensors provide an interface for transferring information from TEDS-enabled sensors. The NI-9218 with LEMO, NI-9982L, NI-9983L, NI-9984L, NI-9985L, and NI-9986L support TEDS Class 2 sensors.
Vsup Daisy Chain Topology
NI-9218 tare da LEMO yana ba da fil huɗu akan mahaɗin Vsup don sarkar daisy.
NI-9218 Jagoran Haɗin Kai
Make sure that the devices you connect to the NI-9218 are compatible with the module specifications.
Ka'idojin Cabing na Musamman
- Kiyaye waɗannan jagororin yayin amfani da adaftar ƙoƙon solder kofin NI-9988 ko mai haɗin crimp LEMO (784162-01) don ƙirƙirar igiyoyi na al'ada.
- Use a shielded cable for all signals.
- Connect the cable shield to the earth ground.
- Use twisted-pair wiring for the AI+/AI- and RS+/RS- signals to achieve specified EMC performance.
Tsarin Block NI-9218
- Two 24-bit analogue-to-digital converters (ADCs) simultaneously sampbiyu AI tashoshi.
- The NI-9218 provides channel-to-channel isolation.
- The NI-9218 reconfigures the signal conditioning for each measurement type.
- The NI-9218 provides excitation for IEPE and bridge completion measurement types.
- The NI-9218 can provide optional 12 V sensor excitation for ±16 V, ±65 mV, and ±20 mA measurement types.
± 16 V da ± 65 mV Siginar Kwadi
Siginonin shigarwa akan kowane tashoshi suna karewa, sharadi, sannan sampkarkashin jagorancin ADC.
Cikakkiyar Siginar Gada
- The analogue input connections sense and then amplify the incoming analogue signal.
- The excitation connections provide differential bridge-excitation voltage.
- Remote sensing continuously and automatically corrects for lead-wire induced excitation voltage loss when using the RS connections.
- Shunt calibration can be used to correct for lead-wire-induced desensitisation of the bridge.
IEPE Signal Conditioning
- The incoming analogue signal is referenced to an isolated ground.
- Each channel is configured for AC coupling with an IEPE current.
- Each channel provides a TEDS Class 1 interface.
±20 mA Siginar Kwadi
The NI-9983 provides a current shunt for the incoming analogue signal.
± 60V Siginar Kwadi
The NI-9987 provides an attenuator for the incoming analogue signal.
Siginar Half-Bridge Conditioning
- The NI-9886 provides half-bridge completion resistors for the incoming analogue signal.
- You must connect AI+, EX+, and EX-.
- RS+ and RS- connections are optional.
- You do not need to connect the AI signal because it is connected internally.
Yanayin Kwata-Bridge Mai sanyaya
The NI-9984 and NI-9985 provide a quarter-bridge completion resistor and a half-bridge completion resistor.
Tace
The NI-9218 uses a combination of analogue and digital filtering to provide an accurate representation of in-band signals while rejecting out-of-band signals. The filters discriminate between signals based on the frequency range, or bandwidth, of the signal. The three important bandwidths to consider are the passband, the stopband, and the alias-free bandwidth.
NI-9218 tana wakiltar sigina a cikin lambar wucewa, kamar yadda aka ƙididdige su ta farko ta hanyar ripple ɗin wucewa da rashin daidaituwa na lokaci. Duk sigina da ke bayyana a cikin bandwidth mara laƙabi ko dai sigina ne da ba a haɗa su ba ko sigina waɗanda aka tace ta aƙalla adadin kin amincewa da igiyar tsayawa.
Lambar wucewa
Sigina a cikin madaidaicin wucewa suna da riba mai dogaro da mitoci ko attenuation. Ƙananan adadin bambancin riba game da mitar ana kiransa flatness bandeji. Matatun dijital na NI-9218 suna daidaita kewayon mitar lambar wucewa don dacewa da ƙimar bayanai. Don haka, adadin riba ko raguwa a mitar da aka bayar ya dogara da ƙimar bayanai.
Tsayawa
Tace tana da matuƙar rage duk sigina sama da mitar tasha. Babban burin tace shine a hana allising. Don haka, mitar tasha tana daidaita daidai da ƙimar bayanai. Ƙimar daɗaɗɗen tsayawa shine mafi ƙarancin adadin ƙima da tacewa zuwa duk sigina tare da mitoci a cikin madaidaicin tasha.
Bandwidth Kyauta-Free
Any signal that appears in the alias-free bandwidth of the NI-9218 is not an aliased artefact of signals at a higher frequency. The alias-free bandwidth is defined by the ability of the filter to reject frequencies above the stopband frequency, and it is equal to the data rate minus the stopband frequency.
Buɗe Adaftar Aunawa
Abin da za a yi
- Unlock the measurement adapter housing/cover.
- Slide the measurement adapter housing/cover to access the screw terminals.
Hawan NI-998xD/998xL
Abin da za a yi amfani da shi
- NI-998xD or NI-998xL Measurement Adapter
- M4 or Number 8 Screw
- Screwdriver
Abin da za a yi
Mount the measurement adapter to a flat surface using the mounting hole on the measurement adapter and the screw.
Ma'auni Adafta Grounding
Ana haɗa tashoshin ƙasa akan adaftar aunawa zuwa ƙasan chassis lokacin da aka haɗa adaftar ma'aunin zuwa NI-9218 kuma an shigar da NI-9218 a cikin chassis.
Ma'auni Adafta Pinouts
Sassan masu zuwa sun haɗa da pinouts don adaftan ma'aunin NI-9218.
NI-9982 ± 16 V Haɗin Haɗin Pinout
Pins 3a and 3b are tied together on the NI-9982.
Magana mai alaƙa:
- ± 16 V Haɗin kai
NI-9982 ± 65 mV Haɗin Haɗin Pinout
Pins 3a and 3b are tied together on the NI-9982.
Magana mai alaƙa:
- ± 65 mV Haɗin kai
NI-9982 Cikakkun Gada Haɗin Pinout
Pins 3a and 3b are tied together on the NI-9982.
Magana mai alaƙa:
- Haɗin Cikakkun Gada
NI-9982 Haɗin IEPE Pinout
Pins 3a and 3b are tied together on the NI-9982.
Magana mai alaƙa:
- IEPE Connections
Saukewa: NI-9983
Pins 3a and 3b are tied together on the NI-9983.
Magana mai alaƙa:
- ± 20mA Haɗin kai
NI-9984/9985
Magana mai alaƙa:
- Haɗin Ƙarter-Bridge
Saukewa: NI-9986
Pins 3a and 3b are tied together on the NI-9986.
Magana mai alaƙa:
- Haɗin Half-Bridge
Saukewa: NI-9987
Pins 3a and 3b are tied together on the NI-9987.
Magana mai alaƙa:
- ± 60 V Haɗin kai
FAQ
Takardu / Albarkatu
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