Product Summary
The 1734-IR2 is a high-precision RTD input module from Rockwell Automation. It accepts two single-ended, non-isolated inputs for accurate temperature measurement. This module supports a wide range of platinum, nickel, and copper sensors. It also accepts direct 0-600 Ohm resistance signals.
Expert Technical Evaluation & Performance Review
High-Resolution Signal Acquisition
The 1734-IR2 utilizes a 16-bit delta-sigma converter for precise data acquisition. This architecture delivers a resolution of 9.5 mOhms per count. For temperature, this translates to 0.03 degrees Celsius per count. This ensures highly granular readings for critical process control.
Multi-Sensor Compatibility
This module supports a diverse array of RTD types. It handles 100 and 200 Ohm platinum sensors with alpha values of 0.00385 and 0.003916. It also supports 10 Ohm copper and multiple nickel sensor variants. This flexibility reduces the need for different module types in a system.
Configurable Noise Rejection
Engineers can select a notch filter frequency to match their environment. The module offers settings from 50 Hz up to 480 Hz. This feature directly mitigates electrical noise from power lines and drives. The default setting is 60 Hz for standard industrial applications.
Fast Input Response Times
The input step response varies based on the chosen notch filter. At the default 60 Hz setting, the response time is 50 milliseconds. Selecting a higher 480 Hz notch cuts this time to just 6 milliseconds. This allows the system to react quickly to rapid temperature changes.
Robust Environmental Tolerances
The module operates reliably within a temperature range of -20 to 55 degrees Celsius. Its open-style enclosure requires installation in a protected cabinet. The unit draws only 220 mA from the 5V DC backplane. This low power consumption minimizes thermal buildup in the panel.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1734-IR2 RTD Input Module
- Product is shipped in an anti-static protective bag
- We provide express delivery via FedEx, UPS, and DHL
- Item weight is approximately 0.08 pounds (0.036 kilograms)
- Module dimensions are 56 x 12 x 75.5 millimeters
