Description
NI SCXI-1000 – 4‑Slot Signal Conditioning Chassis for Modular DAQ Systems

The NI SCXI-1000 is a 4-slot chassis designed to host SCXI signal conditioning modules—ideal when you need clean, scalable measurements across thermocouples, strain, voltage, or switching. From my experience, teams pick it because it’s simple to integrate with NI DAQ hardware and it stays stable on the bench or in a cabinet for years. You might notice that it’s equally at home in a teaching lab or a production test rack; the backplane timing and trigger lines make multi-module sync straightforward in most cases.
Company’s Order Placement Process and Guarantees
- Warranty period: 365 days
- Delivery time: 1 week for in-stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- 4-slot modular chassis – Houses up to four SCXI modules for conditioning, multiplexing, isolation, or switching.
- Integrated universal AC power – Typically 100–240 VAC, 50/60 Hz autoranging; no external brick to manage.
- Backplane timing/trigger bus – Synchronizes modules for consistent multi-channel acquisition.
- Flexible connectivity – Works with NI DAQ boards via SCXI-1349 cabling, or you can add SCXI-1600 for USB control.
- Bench or rack friendly – Desktop footprint; optional rackmount kit for tidy cabinets.
- Active cooling – Internal fan provides steady airflow to modules during long test runs.
- System scalability – Add or swap SCXI modules as requirements evolve, without redesigning your rack.
Technical Specifications
| Brand / Model | National Instruments (NI) / SCXI-1000 |
| HS Code | 854370 (Electrical machines and apparatus, having individual functions) |
| Capacity | 4 SCXI module slots (front I/O depends on installed modules) |
| Power Requirements | 100–240 VAC, 50/60 Hz (autoranging internal supply) |
| Operating Temperature | Typically 0 to 50 °C; non-condensing environment recommended |
| Signal I/O Types | SCXI backplane analog bus, trigger lines, and digital control; front-panel I/O via modules |
| Communication Interfaces | Interfaces to NI DAQ boards via SCXI-1349/68‑pin cabling; optional SCXI-1600 for USB control |
| Installation Method | Desktop/benchtop; optional rackmount kit for 19‑inch cabinets |
| Cooling | Forced‑air internal fan; front‑to‑back airflow |
| Dimensions & Weight | 4‑slot desktop chassis (compact footprint; contact for exact dimensions/weight) |
Related or Supporting Products
- SCXI-1001 – 12‑slot chassis for higher channel density; same module family and backplane concept.
- SCXI-1000DC – 4‑slot chassis variant with DC power input for mobile or isolated installations.
- SCXI-1600 – USB controller for stand‑alone connection to a PC without a plug‑in DAQ board.
- SCXI-1349 – Shielded 68‑pin cable adapter that links SCXI chassis to NI M/X Series DAQ devices.
- SCXI-1102 / SCXI-1125 – Analog input modules for thermocouples or high‑accuracy voltage/bridge signals.
- SCXI-1160 – Relay/matrix switching module for test sequencing and routing.
- SCXI-1300 / SCXI-1303 – Terminal blocks providing screw terminals and cold‑junction sensing for TC work.
- Migration note – If you’re planning a refresh, many teams move to NI cDAQ-9174 with C Series modules for USB‑based DAQ while keeping similar conditioning capability.
Installation & Maintenance
One thing I appreciate is how straightforward installation tends to be, as long as airflow is respected. A few practical pointers that typically save time:
- Cabinet & ventilation – Leave clear intake/exhaust paths; 50–100 mm clearance front and back works well. In racks, use vented shelves and avoid hot zones near power supplies.
- Power & grounding – Connect protective earth first. Keep the chassis on the same ground reference as the DAQ device to minimize ground loops.
- Wiring practices – Route low‑level sensor wiring separately from AC mains. Use shielded, twisted pairs for thermocouples and bridges; land shields at a single point to reduce noise.
- Module handling – Insert/remove SCXI modules with power off. Verify addressing and backplane configuration before powering up.
- Driver & software – Use NI‑DAQmx that supports SCXI routing and timing. In many cases, channel maps are easier to maintain if you save configurations as task templates.
- Routine maintenance – Quarterly dust cleaning with dry air; check fan noise and airflow. Tighten terminal screws, inspect cable strain reliefs, and re‑seat connectors if channels get noisy.
- Calibration – The chassis itself doesn’t require calibration, but your measurement accuracy depends on the installed SCXI modules—follow their recommended calibration intervals.
A lab customer put it simply: “We’ve run an SCXI-1000 with an SCXI-1102 for thermal cycling all season; once we cleaned the fan and re‑tightened the terminal block, drift issues disappeared.”
Quality & Certifications
- CE marked – Conforms to applicable EMC and safety directives.
- Safety – Tested to IEC/EN 61010‑1 for laboratory/industrial environments (NI documentation typically references this).
- UL/CSA – Commonly recognized on production units; we can confirm listing per the exact hardware revision.
- RoHS – Compliance may vary by build revision; we verify RoHS status at order time.
- Manufacturer’s warranty – NI standard limited hardware warranty (commonly 1 year).
If you’re matching this chassis to existing NI DAQ cards or planning a new stack, share your module list or channel types. We can quickly confirm SCXI‑1349 cabling options, recommended terminal blocks, and a practical layout that keeps noise low and maintenance light.









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