Logicbus/Tarjetas para chassis/Entrada de termopar/DNA-AI-222

MX
USA

Comprar ahora

Logicbus SA de CV

Buscar productos

Productos

DNA-AI-222
DNA-AI-222
12-Channel, fully isolated RTD/resistance input board
Producto descontinuado
 
The DNA/DNR-AI-222 are 12-channel fully isolated, simultaneously sampling RTD input boards compatible with Cube and RACKtangle chassis respectively. The DNA/DNR versions are electronically identical. The DNx-AI-222 features a 100 µA excitation current and 24-bit A/D converters. At the gain of 16 used 100 Ohm RTDs the AI-222 provides an input resolution of better than 0.005 °C or 0.002 Ohm in resistance measurement mode.

An A/D per channel configuration allows simultaneous sampling at rates up to 100 S/s each (1200 S/s aggregate). The A/D per channel configuration virtually eliminates input cross talk and channel settling time issues. 

The DNx-AI-222 is an ideal, high accuracy RTD measurement device, offering total errors of less than 0.2 °C on all standard 100 Ohm RTDs. This accuracy combined with the 350 VDC/Vrms channel-to-channel and channel-to-chassis isolation makes the board a perfect solution for industrial temperature measurement, even when using non-isolated RTDs in high voltage environments. 

The software included will perform all required RTD linearization and compensation and returns data in °C, °K, °F or °R when desired. The software also allows the temperature conversion to be disabled and the inputs can measure resistance in Ohms up to 40 kOhms.

Software included with the DNx-AI-222 provides a comprehensive yet easy to use API that supports all popular Windows programming languages as well as supporting programmers using Linux and most real-time operating systems including QNX, RTX, InTime, VXworks and more. The UEIDAQ Framework supplies complete support for those creating applications in data acquisition software packages such as LabVIEW, MATLAB/Simulink, DASYLab or any application which supports ActiveX or OPC servers.
 
Characteristics:
  • For use in “CUBE” chassis
  • 12 fully differential analog input channels
  • 2, 3 and 4 wire connections
  • 100 Ohm DIN and US measurements
  • Channel-to-channel and channel-to-chassis isolation
  • 0.005 °C resolution, 0.2 °C accuracy
  • 0 to 40,000 Ω resistance measurement range
  • Built-in 50, 60 and 400 Hz rejection (at select sample rates)
  • 100 Hz, per channel sample rates
 
Technical Specifications
Parameter
Number of channels: 12 fully differential plus
ADC resolution 24 bits, < 0.005 °C with 100 Ω PT RTDs
< 0.002 Ω in resistance measurement mode
Sampling rate up to 100 samples/sec per channel 
1200 S/S board aggregate
Measurement error
0 to 4999 Ω
5000 to 40,000 Ω		 0.2 °C Max (100 Ω PT RTDs)
0.1 Ω Max (resistance mode)
tbd Ω Max (resistance mode)
RTD excitation current 100 µA typical (open TC source off)
Resistance range 0 - 40,000 Ω
General A/D specifications
Input offset < 3 µV @ 25°C, (<15 µV -40°C to +85°C)
Gain error ±0.005 % (typical)
Input INL error 6 ppm typical, 15 ppm max
Input impedance >5000 MΩ
Input range ±2.048 Volt (gain = 1)
Gains 1, 2, 4, 8, 16, 32, 64
Anti-Aliasing filtering @47.6% of sample rate, ~100 dB/decade
50/60/400 Hz notch filtering >70 dB at sample rate = 20 Hz or less
Chan to Chan crosstalk < 0.5 µVrms
Isolation 350 Vrms, chan-to-chan & chan-to-chassis
Overvoltage protection -15 V to +15 V (power on or off, current must 
be limited to ±20 mA)
Power consumption 4 W max
Operating temp. (tested) -40°C to +85°C
Operating humidity 95%, non-condencing
Vibration IEC 60068-2-6 5 g, 10-500 Hz, sinusoidal
IEC 60068-2-64 5 g (rms), 10-500Hz, broadband random
Shock IEC 60068-2-27 50 g, 3 ms half sine, 18 shocks @ 6 orientations
30 g, 11 ms half sine, 18 shocks @ 6 orientations