Page 2 - bold; italic; SCC
SCC-LP Series Lowpass Filter Modules User Guide 2 ni.com When symbol is marked on a product, it denotes a warning advising you to take precautions to avoid electrical shock. When symbol is marked on a product, it denotes a component that may be hot. Touching this component may result in bodily injur...
Page 3 - What You Need to Get Started; XX; Using the SCC-LPXX when Scaling Voltage Measurements
© National Instruments Corporation 3 SCC-LP Series Lowpass Filter Modules User Guide What You Need to Get Started To set up and use the SCC-LP XX , you need the following items: ❑ SC-2345/2350 with one of the following: – SCC-PWR01 – SCC-PWR02 and the PS01 power supply – SCC-PWR03—requires a 7 to 42...
Page 4 - Device Specific Information; Installing the Module; Connecting the Input Signals
SCC-LP Series Lowpass Filter Modules User Guide 4 ni.com Device Specific Information Note For general SCC module installation and signal connection information, and information about the SC-2350 carrier, refer to the SCC Quick Start Guide , available for download at ni.com/manuals . Installing the M...
Page 5 - The signal source can be floating or ground-referenced. The SCC-LP; For information about configuring the SCC-LP
© National Instruments Corporation 5 SCC-LP Series Lowpass Filter Modules User Guide The signal source can be floating or ground-referenced. The SCC-LP XX input circuitry includes high-impedance bias resistors typically required for floating sources. Therefore, floating signal sources do not require...
Page 6 - when Scaling Voltage Measurements; Specifications; Amplifier Characteristics
SCC-LP Series Lowpass Filter Modules User Guide 6 ni.com Using the SCC-LP XX when Scaling Voltage Measurements If you configured the SCC-LP XX using Measurement & Automation Explorer (MAX) and you are using NI-DAQ, the voltage reading you get from the E Series DAQ device accounts for the voltage...
Page 7 - Filter Characteristics; Input Signal
© National Instruments Corporation 7 SCC-LP Series Lowpass Filter Modules User Guide Input bias current ................................... ± 2 nA typ ± 5 nA max 1 Nonlinearity ........................................... 0.004% of full scale Filter Characteristics Filter type ..........................
Page 8 - Stability; Analog power; Physical; 5 V, Installation Category I; Environmental
SCC-LP Series Lowpass Filter Modules User Guide 8 ni.com Stability Gain temperature coefficient ..................10 ppm/°C typ 20 ppm/°C max Offset-voltage temperature coefficient ...........................3.4 µ V/°C typ (RTI) 27 µ V/°C max Power Requirement Analog power SCC-LP01, SCC-LP02 ..........
Page 9 - Safety; Electromagnetic Compatibility; CE Compliance
© National Instruments Corporation 9 SCC-LP Series Lowpass Filter Modules User Guide Humidity ................................................ 10 to 90% RH, noncondensing Maximum altitude .................................. 2,000 m Pollution Degree (indoor use only) ........ 2 Safety The SCC-LP XX me...
Page 10 - Theory of Operation; Performance
SCC-LP Series Lowpass Filter Modules User Guide 10 ni.com Theory of Operation SCC-LP XX Performance The SCC-LP XX uses a Butterworth filter, which is characterized by maximal flatness in the passband with very sharp monotonic rolloff. It has a nonlinear phase response, the delay is not constant, and...
Page 14 - Figure 6a shows that the SCC-LP
SCC-LP Series Lowpass Filter Modules User Guide 14 ni.com The horizontal axes of the first two plots are normalized to the SCC-LP XX cutoff frequency. When the input frequency (f ) equals the cutoff frequency (fc), the normalized frequency has a value of 1. The vertical axis of the third plot is nor...
Page 15 - as an Antialiasing Filter; Nyquist frequency
© National Instruments Corporation 15 SCC-LP Series Lowpass Filter Modules User Guide Using the SCC-LP XX as an Antialiasing Filter Aliasing, a phenomenon of voltage-sampling systems, causes a high-frequency signal to take on the identity of a low-frequency signal. Figure 7. Aliasing of an Input Sig...
Page 16 - Calibrating Gain Errors
SCC-LP Series Lowpass Filter Modules User Guide 16 ni.com Calibrating Gain Errors The SCC-LP XX is calibrated at the factory before shipment. If you want to calibrate the SCC-LP XX in your system, you need a voltage source capable of providing a DC voltage up to ± 10 V that is several times more acc...
Page 17 - Module Pin Assignments; Figure 8 shows the I/O connector pins on the bottom of the module.
© National Instruments Corporation 17 SCC-LP Series Lowpass Filter Modules User Guide SCC-LP XX Module Pin Assignments Figure 8 shows the I/O connector pins on the bottom of the module. Figure 8. SCC Module Bottom View 1 Pin 1 2 Pin 2 3 PWB Key 4 Pin 19 5 Pin 20 5 4 2 1 3
Page 18 - Device Specific; Pin Number
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