Product Overview
NI SCXI-1102C Signal Conditioning Module - 32 Differential Channels, 10 kHz Three-Pole Filter, ±10V Range
Condition
Single unit available. Used, sourced from a government research facility. Photos show the specific unit you will receive - brushed aluminum enclosure with light surface marks, intact front panel with the "32-CHANNEL 10KHz BANDWIDTH AMPLIFIER" label clearly legible, single BNC connector, and gold-pin 32-channel connector with no bent pins noted. A faint handwritten notation is visible below the model label. Serial no. D24546, part no. 183087H-03, Rev. 3.3, Made in USA, confirmed from the label. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
National Instruments SCXI-1102C is a 32-channel signal conditioning module for the NI SCXI platform. It amplifies, filters, and conditions low-level analog signals from thermocouples, RTDs, thermistors, voltage sources, and 4-20 mA current loops before passing them to a downstream DAQ device. The defining characteristic of the 1102C variant within the SCXI-1102 series is its three-pole lowpass filter with a 10 kHz cutoff frequency - wider bandwidth than the 2 Hz cutoff of the SCXI-1102 and the 200 Hz cutoff of the SCXI-1102B, making it suited for faster-changing signals that the other variants would attenuate. Each channel carries a programmable gain of 1 or 100, selectable per channel in software. The module slots into an SCXI chassis and requires a compatible terminal block and a connected E/M Series DAQ device or SCXI-1600 module to operate.
Key Features
- 32 differential analog input channels
- Three-pole lowpass filter, 10 kHz cutoff frequency
- Programmable per-channel gain: 1 or 100
- Input signal ranges: ±10 V at gain 1, ±100 mV at gain 100
- Maximum sampling rate: 333 kS/s (3 µs per channel)
- Supports voltage, current (4-20 mA and 0-20 mA), thermocouple, thermistor, and RTD inputs (RTD requires external excitation source such as SCXI-1581)
- Power: 15 mA max at 5 V; 150 mA max at ±15 V
- Recommended warm-up time: 20 minutes
- Compatible with NI-DAQ 7.0 or later, LabVIEW, LabWindows/CVI, and NI Measurement and Automation Explorer (MAX)
- Serial no. D24546, part no. 183087H-03, Rev. 3.3, Made in USA - confirmed from label
Applications
- Replacing a failed SCXI-1102C in an existing SCXI-based test system to restore data acquisition without re-engineering the chassis, wiring, or LabVIEW code
- Conditioning thermocouple and millivolt signals in a structural or thermal test rig where 32 simultaneous differential channels are needed and 10 kHz bandwidth preserves the signal dynamics that a 2 Hz or 200 Hz module would suppress
- Monitoring 4-20 mA process-current loops from industrial sensors in an automated system where the SCXI chassis already defines the hardware architecture
- Adding high-channel-count voltage measurement capability to a PXI or PCI-based DAQ setup by pairing the module with a supported E/M Series device and a compatible terminal block
- Research data collection in government, aerospace, or university labs where the SCXI platform is the installed standard and the 10 kHz filter variant is specifically required for dynamic signal capture
Frequently Asked Questions
What chassis and terminal blocks are compatible with this module?
The SCXI-1102C requires an SCXI chassis or a PXI/SCXI combination chassis. Compatible terminal blocks include the SCXI-1300, SCXI-1303, SCXI-1308, SCXI-1310, TC-2095, TBX-1303, and TBX-96. The right terminal block depends on your sensor type and wiring configuration - confirm your specific combination before ordering.
What DAQ hardware and software does this module require?
The module requires an NI E Series or M Series DAQ device, or an SCXI-1600 USB module. Software requires NI-DAQ 7.0 or later; it works with LabVIEW, LabWindows/CVI, and NI Measurement and Automation Explorer (MAX).
Can this module measure RTDs without additional hardware?
RTD measurement requires an external excitation source. The SCXI-1581 excitation module is the standard pairing for RTD work with this series. The SCXI-1102C does not supply RTD excitation independently.
How does the 1102C differ from the SCXI-1102 and SCXI-1102B?
All three share the same 32-channel differential input architecture. The difference is the lowpass filter: the SCXI-1102 uses a two-pole filter at 2 Hz, the SCXI-1102B uses a three-pole filter at 200 Hz, and the SCXI-1102C uses a three-pole filter at 10 kHz. If your application involves faster-changing signals, the 1102C is the correct variant.
Is calibration documentation included?
No calibration documentation is included with this unit. NI recommends calibrating this module at least once a year. Calibration would need to be performed or sourced separately.
Pulled from a government research facility, this module spent its working life conditioning real signals in a real system - and the 10 kHz filter tells you exactly what kind. Slot it in, warm it up for twenty minutes, and put those 32 channels back to work.
