Allen-Bradley 1734-US5T Thermocouple Module | 5-Channel, J/K/T/E, 16-bit, IP20 Specs

Allen-Bradley 1734-US5T Point I/O thermocouple input module specifications. 5-channel thermocouple input, J/K/T/E types, 16-bit resolution, IP20. For industrial temperature measurement.

Product Overview

The Allen-Bradley 1734-US5T​ is a 5-channel thermocouple input module​ from the Point I/O series, designed for industrial temperature measurement applications. This module provides 5 isolated input channels​ for various thermocouple types (J, K, T, E), 16-bit resolution, and operates on 24V DC system power. The "1734" designation indicates the Point I/O series, "US5T" specifies the 5-channel thermocouple input configuration. This compact module integrates with Allen-Bradley's Point I/O system for distributed temperature measurement in process control, HVAC, and industrial automation systems requiring high-accuracy temperature monitoring.

Technical Specifications

Note: Specifications are based on Allen-Bradley 1734 series technical documentation. The "1734-US5T" model specifically indicates 5-channel thermocouple input configuration. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (1734-US5T)

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

• US5T:​ Module type (US = universal analog input, 5 = 5 channels, T = thermocouple specific)

Note:​ The "US" prefix indicates universal analog input functionality. The "5" suffix specifies 5 input channels. The "T" designation indicates thermocouple-specific configuration. This module is part of the modular Point I/O system and requires a base unit (1734-XXXX) and appropriate power supply for operation.

Key Features

• 5 Thermocouple Channels:​ Five isolated thermocouple input channels

• Multiple TC Types:​ Supports J, K, T, and E thermocouple types

• High Resolution:​ 16-bit resolution for precise temperature measurement

• Cold Junction Compensation:​ Internal CJC with ±1°C accuracy

• Burnout Detection:​ Configurable upscale/downscale burnout detection

• Programmable Ranges:​ User-configurable thermocouple type per channel

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

• Removable Terminals:​ Screw terminal blocks for easy wiring

• 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 Thermocouple Ranges

*After cold junction compensation, at 25°C ambient

Typical Applications

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

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

• Heat Treatment:​ Furnace and oven temperature monitoring

• Power Generation:​ Transformer, bearing, and motor temperature monitoring

• Plastics Processing:​ Extruder barrel and mold temperature measurement

• Food Processing:​ Cooking, baking, and refrigeration temperature control

• Metal Processing:​ Melt temperature, annealing, and heat treating

• Environmental Chambers:​ Test chamber temperature monitoring

• Energy Management:​ Flue gas and stack temperature measurement

Important Technical Notes

1. System Requirements:​ Requires 1734 Point I/O base unit (1734-XXXX) and 24V DC power supply. Not a standalone device.

2. Thermocouple Wiring:​ Use proper thermocouple extension wire matching the thermocouple type. Do not use copper wire for thermocouple connections.

3. Cold Junction:​ The module provides internal cold junction compensation. Ensure terminal block connections are at stable ambient temperature.

4. Noise Immunity:​ Thermocouple signals are low voltage. Use shielded, twisted pair thermocouple wire and ground shield at one end only.

5. Configuration:​ Module requires configuration via programming software (RSLogix 5000, Studio 5000) for proper operation. Configure thermocouple type, range, and filtering per channel.

6. Burnout Detection:​ Configure burnout detection based on application requirements. Upscale detection indicates open circuit, downscale indicates short circuit.

7. Environmental Conditions:​ Install in appropriate enclosure for protection against drafts, temperature fluctuations, and EMI sources that could affect measurement accuracy.

8. Calibration:​ Regular calibration recommended for critical temperature measurement applications. Reference junctions should be verified periodically.

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.