Product Summary
The 1794-IF4IXT is an isolated analog input module from the Flex XT I/O series. It processes signals from field sensors over long cable runs. This unit delivers channel-to-channel isolation to eliminate ground loops and interference.
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Why choose the 1794-IF4IXT for your system?
This module solves signal integrity issues in harsh environments. It provides four individually configurable analog inputs. Each channel accepts ±10 Volts or 0 to 20 mA signals from sensors.
Combat signal interference with robust isolation.
Cables longer than 10 meters often pick up unwanted noise. The 1794-IF4IXT uses channel-to-channel isolation to block these disturbances. This design protects your low-voltage signals from ground potential differences.
Select the correct sensor wiring configuration.
The module works with 2-wire, 3-wire, and 4-wire input sensors. This flexibility simplifies integration with existing field devices. You can mix sensor types across the four input channels.
Understand the extended temperature rating.
This unit is the high-temperature version of the standard 1794-IF4I module. Its PCB and components feature a conformal coating for protection. The operating range spans from -20 to 70 degrees Celsius.
Verify power and thermal dissipation requirements.
At a rated voltage of 31.2 Volts DC, the module dissipates only 2 Watts. This equates to a heat output of 6.8 BTU per hour. This low power draw reduces stress on your control cabinet cooling system.
Confirm the required mounting base.
The module mounts onto a specific base terminal unit. Compatible bases include the 1794-TBN, 1794-TB2, and 1794-TB3 models. Ensure you order the correct base for your application.
Theme: Expert Technical Evaluation & Performance Review
High-resolution signal conversion for precision control.
The module uses a Sigma Delta conversion method for analog inputs. This technique provides a 16-bit resolution for unipolar signals. For bipolar signals, it delivers a 15-bit resolution.
Factory calibration ensures out-of-box accuracy.
Every unit ships from the factory fully calibrated. This eliminates the need for initial field adjustments. You can deploy the module immediately into your control loop.
Compact mechanical design saves panel space.
The housing measures just 46 millimeters by 94 millimeters by 53 millimeters. This small footprint allows for dense I/O installations. The module integrates easily into existing Flex I/O racks.
Proven performance in signal-interference environments.
Engineers test this module thoroughly for analog signal processing. It provides reliable isolation for low-voltage field signals. This makes it a trusted solution for noisy industrial settings.
Sigma Delta conversion offers superior noise rejection.
This method shapes quantization noise away from the signal band. It delivers clean, stable data to your control system. You get accurate readings from your pressure and temperature transmitters.
Channel-to-channel isolation prevents cross-talk.
Each of the four inputs operates independently from the others. A fault on one channel will not affect the others. This increases the overall reliability of your distributed I/O system.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1794-IF4IXT Analog Input Module
- The unit ships in an anti-static protective package
- We include a factory calibration certificate with each order
- Express delivery shipping is available via FedEx, UPS, and DHL
