INET-420
Este módulo amplificador ofrece 20 SE/10 DIFF canales de entrada de voltaje, cada cual se puede programar de manera independiente con el software para Windows que soporta la conexión directa a mucho tipos de sensores.
Este módulo no contiene un convertidor A/D, y además internamente encamina el voltaje medido a un módulo A/D en cualquier parte de la caja para tarjetas. Al menos debe haber instalado un módulo A/D con la finalidad de medir un voltaje con este módulo.
Cada uno de los 10 canales diferenciales soporta conexión directa a algunos de los siguientes tipos de sensores: voltaje, termopar, termistor, RTD, celda de carga, galga extensiométrica, potenciómetro, corriente, resistencia. El rango de entrada de voltaje en cada canal es independientemente programable a uno de: +/-20mV, +/-40mV, +/-80mV, +/-2.5V, +/-5V, +/-10V, 0 a 5V, 0 a 10V.
- Se conecta a una ranura de la caja de tarjetas de instruNet.
- 20 SE/10 DIFF canales de entrada de voltaje.
- 4 E/S digitales universales (20mA sink, -10V~30V).
- Se conecta directamente a sensores: voltaje, termopar, termistor, RTD, celda de carga, galga extensiométrica, potenciómetro, corriente, resistencia.
- Se requiere de un módulo A/D adicional para medir voltaje.
Technical specifications of analog inputs | |
Analog voltage input | |
Description | 20SE/10DIFF voltage input channels |
Absolute precision | Specified |
Voltage ranges | +/- 20mV ... +/- 10V, 0 to 5V ... 0 to 10V |
Internal | A/D None |
Sensors | Direct connection |
Programmable channel | amplifiers by software |
Wiring | Referenced to earth or differential |
Protected voltage | -25 to 25V |
Bandwidth | Depends on the voltage range |
RFI filter | RFI filter of 24 KHz over <= +/- 80mVrango |
Digital filter | LowPass, HighPass, BandPass or BandStop |
Maximum sampling frequency | 166Ks/sec/aggregate |
Sensor excitation | Included |
Electric specifications | |
Common mode voltage | -10 to + 10V |
Crosstalk | <-80dB typ |
Input coupling | DC |
Input impedance | 100MO |
Current pump | 60 pC max |
Leakage current input | 2.8 nA max. at 37 ° C |
Multiplexer | input circuit |
Rejection radius in common mode | = 74dB |
Calibration | Control by software |
Software interface | |
Software interface | Compatible with Windows |
# of channels max | Up to 256 |
Size of the waveform max. | Limited by computer |
Scalar I/O reference | 50 to 300 uSeg typ |
Software channels | Ch1 Vin + ... Ch20 Vin- |
Connector pins | One pin per bit |
Reference to earth | Hd44 pins 29/42/43/44 |
Technical specifications of digital I/O | |
Universal digital I/O | |
Description | 4 bidirectional digital I/O |
Options function | Multiple |
Sampling frequency max. | 166Ks/sec/added |
Update frequency max. | 41Ks/sec per 1 channel |
TTL Compatible | Yes |
Electric specifications | |
Working voltage | -10 to + 30V |
Protected voltage | -16 to + 32V |
Auto-reset fuse, | 30mA |
Input voltage "0" | -10 to + 0.65V |
Input current "0" | Amps = (4.5V - Vin)/3900 |
Input voltage "1" | +2.1 to + 30V |
Input current "1" | < 1.4mA |
Output voltage "0" | < 0.8V @ < 5mA < 2V @ < 20mA |
Output voltage "1" | 3.9V ... 4.5V |
Output current "1" | See input current "1" |
Pull-Up Resistor | 3.9KO +/- 10% |
Current Sink | IC ULN2003 |
Schmitt trigger input | Si |
Entry delay | < 0.7 uSeg |
Output drop time | 0.02 uSeg @ 100 pF typ, < 1.3 uSeg @ 1K pF |
Lifting time of output | 1.3 uSeg @ 100 pF typ, < 4.9 uSeg @ 1K pF |
Output Oscillation | None |
Software interface | |
Software interface | Compatible with Windows |
# of channels maximum | up to 256 |
Size of the waveform max. | Limited by computer |
Scalar I/O reference | 50 to 300uSeg typ |
Bit or bank control | Yes |
Retention of I/O | Yes |
Software channels | Bit Ch25 Uio ... Ch28 Uio |
Software Bank | Uio25_28 In, Uio25_28 Out channels |
Connector pins | One pin per bit |
Reference to earth | Hd44 pins 29/42/43/44 |