Allen-Bradley 1734-IR2 Point I/O RTD Input Module | 2-Channel, RTD/Resistance, 24V DC, IP20 Specs

Allen-Bradley 1734-IR2 Point I/O RTD Input Module | 2-Channel, RTD/Resistance, 24V DC, IP20 Specs

Allen-Bradley 1734-IR2 Point I/O RTD input module specifications. 2-channel RTD/resistance input, 24V DC, 12-bit resolution, IP20 protection. For industrial temperature measurement and process control.

Product Overview

The Allen-Bradley 1734-IR2​ is a 2-channel RTD (Resistance Temperature Detector) and resistance input module​ from the Point I/O series, designed for industrial temperature measurement applications. This module provides 2 isolated input channels​ for various RTD types and resistance inputs, 12-bit resolution, and operates on 24V DC system power. The "1734" designation indicates the Point I/O series, "IR2" specifies the RTD/resistance input configuration with 2 channels. This compact module integrates with Allen-Bradley's Point I/O system for distributed temperature measurement in process control, HVAC, and industrial automation systems.

Technical Specifications

Note: Specifications are based on Allen-Bradley 1734 series technical documentation. The "1734-IR2" model specifically indicates 2-channel RTD/resistance input configuration. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (1734-IR2)

• 1734:​ Series designation (Point I/O series 1734)

• IR2:​ Module type (IR = RTD/resistance input, 2 = 2 channels)

Note:​ The "IR" prefix indicates RTD/resistance input functionality. The "2" suffix specifies 2 input channels. This module is part of the modular Point I/O system and requires a base unit (1734-XXXX) for operation.

Key Features

• Dual Channel Input:​ Two isolated RTD/resistance input channels

• Wide RTD Support:​ Compatible with Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Cu10 RTDs

• Multiple Wiring:​ Supports 2, 3, and 4-wire RTD connections

• High Accuracy:​ ±0.1% of full scale accuracy for precise temperature measurement

• Programmable Ranges:​ User-configurable temperature ranges for each channel

• LED Diagnostics:​ Comprehensive status indication for module and channels

• Removable Terminals:​ Screw terminal blocks for easy wiring and maintenance

• DIN Rail Mounting:​ Compact design for space-efficient installation

• Isolated Channels:​ 500V AC isolation between channels and backplane

• Selectable Filtering:​ Programmable input filtering for noise immunity

• Modular Design:​ Integrates with Point I/O system for distributed I/O architecture

Supported RTD Types and Ranges

Typical Applications

• Process Control:​ Temperature monitoring in chemical, pharmaceutical, and food processing

• HVAC Systems:​ Air and water temperature measurement in building automation

• Machine Tools:​ Spindle and bearing temperature monitoring

• Power Generation:​ Transformer and motor temperature monitoring

• Water Treatment:​ Process temperature measurement in treatment plants

• Manufacturing:​ Oven, furnace, and heat treatment temperature control

• Oil and Gas:​ Pipeline and vessel temperature monitoring

• Automotive:​ Paint booth and curing oven temperature control

• Plastics Processing:​ Extruder and mold temperature measurement

Important Technical Notes

1. System Requirements:​ Requires 1734 Point I/O base unit (1734-XXXX) and power supply. Not a standalone device.

2. Wiring Configuration:​ Select proper wiring (2, 3, or 4-wire) based on accuracy requirements. 4-wire provides highest accuracy.

3. RTD Selection:​ Ensure RTD type matches module configuration. Mismatch causes measurement errors.

4. Wire Resistance:​ For 2-wire configuration, wire resistance affects accuracy. Use 3 or 4-wire for long cable runs.

5. Grounding:​ Proper grounding and shielding are essential for noise immunity in industrial environments.

6. Configuration:​ Module requires configuration via programming software (RSLogix 5000, Studio 5000) for proper operation.

7. Environmental Conditions:​ Install in appropriate enclosure for protection against dust, moisture, and contaminants.

8. Calibration:​ Regular calibration recommended for critical temperature measurement applications.

9. Maintenance:​ Periodically check connections, wire integrity, and sensor condition.

Note: For complete installation guidelines, wiring diagrams, configuration instructions, and detailed technical data, consult the official Allen-Bradley 1734 Series Technical Manual. Always verify the exact model number configuration with the manufacturer, as notation variations may occur.