1. Product Detailed Description
The cDAQ-9188XT serves as a high-performance, distributed data acquisition hub. It connects to a host PC via Gigabit Ethernet, allowing for remote measurements up to 100 meters away without specialized cabling.
It houses up to eight C Series I/O modules, which are hot-swappable and provide integrated signal conditioning for sensors like thermocouples, strain gages, and accelerometers. A standout feature of the 9188XT is the onboard watchdog timer, which provides a fail-safe mechanism to move outputs to a known safe state if the network connection is lost.
2. Product Parameters (Specifications)
| Parameter | Specification |
| Model | cDAQ-9188XT |
| Part Number | 782824-01 |
| Number of Slots | 8 Slots for C Series Modules |
| Network Interface | 10/100/1000 Base-TX Ethernet (Auto-negotiated) |
| Timing Engines | 3 Analog Input Timing Engines (allows simultaneous tasks) |
| Counters/Timers | 4 General-Purpose 32-bit Counters |
| Operating Temp | -40°C to 70°C (Extended Range) |
| Shock/Vibration | 50 g shock, 5 g vibration (Operating) |
| Power Input | 9 V to 30 V DC (15W Max Consumption) |
| Ingress Protection | IP 30 |
| Software Support | NI-DAQmx, LabVIEW, C#, Python, etc. |
3. Product Advantages
Extreme Ruggedness: Specifically designed for "in-vehicle" or "outdoor" testing, withstanding a wider temperature range (-40°C to 70°C) than the standard cDAQ-9188.
Safety Features: The Watchdog Timer is a critical advantage for remote systems, ensuring that motors or valves are shut down safely if communication drops.
Simplified Connectivity: Standard Ethernet allows for easy integration into existing corporate networks or dedicated local measurement subnets.
Simultaneous Data Tasks: With 3 independent AI timing engines, you can run multiple acquisition tasks at different rates simultaneously.
Flexible I/O: Supports over 50 different NI C Series modules for almost any sensor type.
4. Cautions & Precautions
Power Supply: You must use a UL Listed ITE power supply. Ensure the power source is within the 9V to 30V range to avoid damaging the internal regulators.
Mounting Requirements: To achieve the maximum 70°C operating temperature, the chassis must be mounted horizontally to a metal panel or heat sink as specified in the manual.
Module Compatibility: While the chassis is rugged, ensure the specific C Series modules you insert are also rated for your target temperature range (some modules are only rated to 55°C).
Cabling: Use shielded Ethernet cables (Cat5e or Cat6) in high-EMI environments to prevent data loss or interference.
5. Product Applications
The cDAQ-9188XT is ideal for distributed systems that require high reliability in harsh locations:
Automotive Testing: In-vehicle data logging for cold-weather or high-heat desert testing.
Oil & Gas: Remote monitoring of wellheads or pipeline equipment where temperatures fluctuate wildly.
Aerospace: Structural health monitoring and engine test stands.
Industrial Automation: Distributed factory floor measurements where the chassis is mounted directly on heavy machinery.
