The National Instruments SCXI-1125 is an eight-channel isolated signal conditioning module for SCXI systems, with software-selectable gain and filtering.
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Designed for conditioning and isolation of thermocouple, millivolt, voltage and current signals, the SCXI-1125 multiplexes its channels into a single input of a controlling DAQ device.
The module's native input ranges extend from ±2.5 mV to ±5 V. Higher-voltage measurements require an appropriate attenuating terminal block; ±300 V is not the native input range.
Only supported values belong in the table and schema.
| Differential input channels | 8 channels |
|---|---|
| Native input ranges | ±2.5 mV to ±5 V — |
| Programmable gain settings | 1, 2, 5, 10, 20, 50, 100, 200, 250, 500, 1000, 2000 V/V |
| Selectable lowpass filter | 4 Hz or 10 kHz — |
| Working isolation | 300 Vrms |
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Manufacturer
Signal conditioning platform
Isolated analog input conditioning
Requires an SCXI system and controlling DAQ device.
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No. Native ranges reach ±5 V. The manual specifies ±300 V operation with the SCXI-1327 attenuating terminal block, subject to its connection and safety requirements.
NI lists the SCXI-1125 in the NI-DAQmx 18.0 supported modules. This establishes support for that release, not universal compatibility with later drivers or operating systems.