1734-IR2E Allen-Bradley RTD Input Module 16-bit

1734-IR2E High-Resolution RTD Input Module Overview

Key Technical Specifications

• Manufacturer: Allen‑Bradley 
• Part Number: 1734-IR2E – POINT I/O Analog Temperature Input Module.
• Inputs: Two single‑ended, non‑isolated RTD inputs.
• Resolution: 16 bits (2.4 milliohms/cnt and 0.006°C/cnt).
• Data Format: Signed integer.
• Isolation Voltage: 50 Volts continuous.
• Power Dissipation: 1 Watt (3.3 BTU/hour thermal dissipation).
• Accuracy: 0.1% full scale at 25°C; drift of 30 ppm/°C (ohm input only).
• Temperature Scales: Celsius, Fahrenheit, Kelvin, Rankine, or one custom mV scale.
• Alarms: Over‑range, under‑range, low level, high level, and open wire.
• Rejection Ratios: 120 dB common mode and 100 dB normal mode.
• Input Range: 0 to 220 ohms resistance.
• Step Response: 6 to 60 milliseconds.
• Operating Temperature: -20°C to 55°C.

Frequently Asked Questions (FAQ)

• Does the 1734-IR2E work with any thermocouple?
  No, it only accepts 22‑14 AWG shielded thermocouple wire for RTD inputs.
• Can I use this module with a 24V DC system?
  Yes, the module’s voltage rating is 24V DC and requires no separate power supply.
• What temperature units does it support?
  Celsius, Fahrenheit, Kelvin, Rankine, and one custom mV scale.
• How fast does it respond to input changes?
  Step response ranges from 6 to 60 milliseconds depending on the setup.
• Is the 1734-IR2E isolated?
  It provides 50V continuous isolation voltage between channels and the backplane.
• Do you have stock available?
  Yes, we keep the 1734-IR2E in stock as brand new, original units.

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