Caractéristiques détaillées:

i423 Product Overview
The i423 card plugs into a 4 to 16 slot instruNet i4xx Card Cage, which in turn attaches to a Windows computer
6di Voltage Input Channels
4x Universal Digital I/O (20mA sink, -10V..30V)
Connect Directly To Sensors: Voltage, Thermocouple, Thermistor, RTD, Load Cell, Strain Gage, Potentiometer, Current, Resistance, Accelerometer
Additional i43x A/D module required to measure voltages
Amplifier/Filter outputs made available at Hd44 connector for end user monitoring
Product Summary
This Amplifier (not A/D) module provides 6 differential voltage input channels (Ch#1/2...#11/12)40 , each of which are independently software programmable with Windows software that support the direct connection to many common sensor types
This module does not contain an A/D converter, and therefore internally routes measured voltage to an i43x A/D module anywhere in card cage. At least one i43x must be installed in order to measure a voltage with this module.
Each of the 6 differential channels support the direct connection to the following sensor types (click for Wiring Diagram and Setup Instructions): Voltage, Thermocouple, Thermistor, RTD, Load Cell, Strain Gage, Potentiometer, Current, Resistance, Accelerometer
Each channel provides several independent analog low pass filter options: 0.006KHz / 2poles, 4KHz / 2poles, or FullBandwidth
Voltage input range on each channel is independently software programmable to one of: ±5mV, ±10mV, ±20mV, ±40mV, ±80mV, ±300mV, ±600mV, ±1.2V, ±2.5V, ±5V, 0 to 40mV, 0 to 80mV, 0 to 2.5V, 0 to 5V
Each channel provides the following software programmable parameters: A/D Signal-Averaging-Per-Point (0 ... 100mSec) , Sample-Rate (samples-per-second-per-channel) , Analog Low Pass Filter (0.006KHz / 2poles, 4KHz / 2poles, or FullBandwidth)2, Digital IIR Filter (LowPass, HighPass, BandPass, or BandStop) , Voltage Measurement Range (±5mV...±5V) , and Sensor Type
Each input channel passes through it's own amplifier with a software selectable voltage gain of 1 or 64, and optional analog low pass filter. After this treatment, these are made available at Hd44 connector pins #17..#22 for purposes of end user monitoring, in addition to possible internal digitizing by A/D.
Each channel provides optional digital IIR lowpass, highpass, bandpass and bandstop filters with independent software programmable cut-off frequency, minimum dB stopband attenuation, maximum dB passband attenuation, and filter type (e.g. Elliptic, Chebyshev B, Chebyshev S, and Butterworth). Number of poles/zeros (i.e. "filter order") is programmable between 2 and 32 .
Excitation power (+3.3V ±.2V, <0.22A, 37mA per sensor max) is provided for sensors, along with other End User Power voltages. This 3.3V, which is referenced to instruNet Ground, is automatically readback by A/D when calculating sensor values.
The 20mA sink digital I/O port consists of 4 individual TTL-compatible lines (Ch#25...#28), each of which can be configured as: digital input bit, digital output bit, control output, clock output43 . When configured as an input, a channel can be used to sense a digital high (2.1 to 30 Volts) or digital low (-10V to .65Volts). When configured as an output, a channel can be set high (e.g. >2V) or low (e.g. <0.8V). These I/O pins are short-circuit protected against high voltages up to 32.0V and down to -16.0V.