NICFP-AI-118

Analog Input Module for Compact FieldPoint NI cFP-AI-118 • 8 analog voltage differential input channels • 8 voltage input ranges – ±1, ±5, ±10, ±15, 0 to 1, 0 to 5, 0 to 10, and 0 to 15 V • 16-bit resolution • Simultaneous sampling on all channels • 10 Hz digital sync filter configurable per channel • 100 Vrms Category I continuous channel-to-channel isolation, verified by 750 Vrms, 5 s dielectric withstand test • 250 Vrms Category II continuous channelto-ground isolation, verified by a 2,300 Vrms, 5 s dielectric withstand test • Hot-swappable • -40 to 70 °C operation Overview The National Instruments cFP-AI-118 Compact FieldPoint module can measure eight analog inputs at 16-bit resolution at a 10 kS/s per-channel sampling rate with multiple voltage ranges. In addition to high resolution and simultaneous sampling, the NI cFP-AI-118 features 750 Vrms channelto-channel isolation and 2,300 Vrms channel-to-backplane isolation, verified by a 5 s dielectric withstand test. This module also was designed using a new architecture in which the controller obtains access to the module memory immediately, significantly reducing jitter. This feature makes this module ideal for industrial environments where sensors and actuators work at different voltage levels, and ground loops are common. Ordering Information NI cFP-AI-118 ......................................................................777318-118 Recommended Compact FieldPoint System Products NI cFP-2120 ..................................................................777317-2120 NI cFP-BP-4........................................................................778617-04 NI cFP-CB-1........................................................................778618-01 NI PS-5 power supply........................................................778805-90 NI Developer Suite Professional Control Edition..............777906-03 BUY NOW! For complete product specifications, pricing, and accessory information, call 800 813 3693 (U.S.) or go to ni.com/compactfieldpoint. Analog Input Module for Compact FieldPoint Accuracy by Input Range and Temperature Range Nominal Input Range (V) ±1 ±5 ±10 ±15 0 to 1 0 to 5 0 to 10 0 to 15 Typical Accuracy at 15 to 35 °C (% of Reading; % of Full Scale) ±0.037; ±0.006 ±0.037; ±0.003 ±0.037; ±0.003 ±0.037; ±0.003 ±0.037; ±0.006 ±0.037; ±0.003 ±0.037; ±0.003 ±0.037; ±0.003 Warranted Accuracy at 15 to 35 °C (% of Reading; % of Full Scale) ±0.086; ±0.036 ±0.066; ±0.009 ±0.064; ±0.005 ±0.063; ±0.004 ±0.111; ±0.036 ±0.071; ±0.009 ±0.066; ±0.005 ±0.065; ±0.004 Specifications Typical for -40 to 70 °C temperature range and for operation with the 10 Hz filter enabled unless otherwise noted. Input Characteristics Number of channels............................ 8 differential Maximum signal input range.............. ±15 V (±15.75 V with overranging) Maximum voltage (V+ or V- to earth) ............................... 250 Vrms, Measurement Category II ADC resolution.................................... 16 bits (refer to table) Type of ADC ........................................ Delta-sigma Gain error drift .................................... 7.4 ppm/°C Offset error drift.................................. 3 µV/°C Isolation Voltage Isolation voltage is verified by a dielectric withstand test. Channel-to-channel isolation Continuous...................................... 100 Vrms Withstand ....................................... 750 Vrms, 5 s max Channel-to-backplane isolation Continuous...................................... 250 Vrms Withstand ....................................... 2,300 Vrms, 5 s max Channel-to-ground isolation Continuous...................................... 250 Vrms Withstand ....................................... 2,300 Vrms, 5 s max Effective Resolution by Input Range and Filter Setting Nominal Input Range (V) ±1 ±5 ±10 ±15 0 to 1 0 to 5 0 to 10 0 to 15 1Includes With Overranging (V) ±1.05 ±5.25 ±10.5 ±15.75 0 to 1.05 0 to 5.25 0 to 10.5 0 to 15.75 Effective Resolution1 (No Filtering) (µV) 100 160 320 480 100 100 160 240 Effective Resolution1 with 10 Hz Filter (µV) 32 160 320 480 16 80 160 240 quantization errors and typical RMS noise. All-channel sample rate With 10 Hz filter ............................. 3.45 kHz1 Without filtering ............................. 10.42 kHz1 Input bandwidth (-3 dB) ...................... 3 kHz minimum Common-mode rejection at 60 Hz, with 50 Ω source impedance and no filtering Channel to channel......................... Channel to ground .......................... Crosstalk attenuation.......................... RMS noise........................................... Peak-to-peak noise ............................. Settling time to 1 LSB Full-scale step (-15 to 15 V) ........... 1% step........................................... Semaphore acquisition jitter .............. Monotonicity ....................................... 110 db 110 db >100 dB 100 µV 700 µV Physical Characteristics LED indicators Power (green) Ready (green) Dimensions.......................................... 127.1 by 73.3 by 23.9 mm (5.00 by 2.89 by 0.94 in.) Weight................................................. 117 g (4.1 oz) Warm-up time ..................................... 30 minutes Power Requirements Power from network module .............. 1.125 W Environment Operating temperature ....................... Storage temperature........................... Relative humidity ................................ Maximum altitude............................... -40 to 70 °C -40 to 85 °C 10 to 90%, noncondensing 2,000 m; at higher altitudes the isolation voltage ratings must be lowered Pollution degree.................................. 2 2.1 ms 1.6 ms None Warranted over the operating temperature range Input resistance .................................. 1 MΩ Input capacitance................................