Description
NI PXI-6229 Multifunction DAQ – 16-bit M Series data acquisition for flexible PXI test stands
The NI PXI-6229 is a capable M Series multifunction data acquisition module designed for PXI systems that need reliable mixed-signal I/O without overpaying for ultra-high-speed specs. From my experience, it fits nicely into automated benches where you need a practical mix of analog input, analog output, and TTL digital I/O, with clean synchronization on the PXI backplane. You might notice that it’s often chosen for end-of-line testers, environmental chambers, and lab rigs where 16-bit resolution and stable timing are more valuable than bleeding-edge throughput.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: In stock typically ships in 1 week; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- 16-bit, multiplexed AI – Typically up to 32 single‑ended (or 16 differential) analog inputs for precise, general-purpose measurements.
- Balanced performance – In many cases used up to 250 kS/s aggregate sampling, suitable for sensors, power rails, and general test points.
- Analog outputs on-board – Commonly 4 AO channels, 16‑bit, for driving setpoints, reference levels, or stimulus profiles.
- Digital I/O and timing – TTL lines plus two 32‑bit counters for event counting, frequency/period tasks, or simple pulse generation.
- PXI synchronization – Uses PXI trigger/timing lines for multi-module sync; you can share clocks and triggers across the chassis without extra wiring.
- NI‑DAQmx software support – Streamlined configuration in LabVIEW, LabWindows/CVI, and .NET; scripting repeatable test steps is straightforward.
- Stable, proven M Series design – From my experience, the 622x family is widely deployed; spare parts and know-how are easy to find.
A packaging line engineer told me they swapped a failing legacy PCI DAQ with the PXI-6229 and a compact PXI chassis; “we kept our 16-bit accuracy, added more digital lines for interlocks, and cut our cabinet footprint.” That seems to be a typical upgrade path for brownfield test stands.
Technical Specifications
| Brand / Model | NI PXI-6229 (M Series multifunction DAQ) |
| HS Code | 9030.39 (Measuring/checking electrical quantities, no recording device) |
| Power Requirements | Powered via PXI backplane; single-slot power envelope; typical consumption under ~10 W |
| Dimensions & Weight | PXI 3U, single-slot module; approx. 0.5 kg |
| Operating Temperature | 0 to 55 °C (typical for PXI M Series) |
| Signal I/O Types | Analog Input: up to 32 SE / 16 DIFF, 16‑bit, up to ~250 kS/s aggregate Analog Output: typically 4 ch, 16‑bit (single‑channel rates up to ~833 kS/s) Digital I/O: up to 48 lines (TTL); 2 × 32‑bit counters/timers |
| Communication & Timing | PXI backplane (triggers/clock), PFI lines; NI‑DAQmx driver support |
| Installation Method | PXI 3U chassis slot; front 68‑pin I/O connector(s) (VHDCI‑style) |
Related or Supporting Products
- NI PXI-6259 – Higher-performance M Series (typically 1.25 MS/s AI, larger DIO count) for faster mixed-signal tasks.
- NI PXI-6251 – Mid-range option with fewer AO channels vs PXI‑6259; a step up in speed from PXI‑6229.
- NI PXI-6221 – Similar family with fewer AO channels; good when budget and basic AI are the priority.
- SCB-68A / BNC-2110 – Shielded terminal blocks for clean sensor wiring and quick BNC connectivity.
- SHC68-68-EPM cable – Shielded 68‑pin cable for reliable signal integrity between the module and terminal blocks.
Installation & Maintenance
- Cabinet & chassis – Install in a PXI 3U chassis with adequate airflow. Leave a free slot or maintain chassis fan speed if ambient exceeds ~40 °C.
- Wiring & grounding – Use shielded 68‑pin cables and maintain a single-point ground to reduce noise. Route analog and high-current wiring separately.
- Signal conditioning – For long sensor runs, use SCB-68A or similar terminal blocks; you typically get better CMR and cleaner readings.
- Safety – Keep input voltages within device ratings; observe proper ESD handling when inserting/removing from the PXI chassis.
- Upkeep – Quarterly dust removal (airwash, low pressure) in most industrial cabinets. Review calibration intervals annually; update NI‑DAQmx and firmware during planned maintenance windows.
Quality & Certifications
- CE and RoHS compliant; designed and manufactured under ISO 9001 processes.
- Meets typical PXI electrical and mechanical specifications; intended for use in controlled industrial/lab environments.
- Manufacturer’s limited hardware warranty is typically 1 year; we provide a 365‑day warranty with expedited replacement options.
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