GE 8106-TI-RT

Product Overview

The GE Fanuc 8106-TI-RT is a 4-channel RTD and resistance input module designed for the PAC8000 process I/O platform. It receives temperature signals from RTD sensors and resistance sources and transfers the measured values into the PAC8000 control system for monitoring and process control.

The module supports multiple RTD wiring configurations, making it suitable for temperature measurement applications where reliable field signal acquisition is required.

Technical Specifications

• Model: 8106-TI-RT
• Platform: GE Fanuc PAC8000
• Module Type: Analog input
• Number of Channels: 4
• Input Type: RTD and resistance
• RTD Wiring: 2-wire, 3-wire, or 4-wire
• Supported RTDs: Pt100, Ni120, and jPt100
• Pt100 Range: approximately -200 to +850 °C
• Ni120: supported
• jPt100 Range: approximately -200 to +510 °C
• Open-Circuit Bleed Current: approximately 0.5 μA
• Signal Processing: Multiplexer and A/D conversion
• Mounting/System: PAC8000 modular I/O architecture

The manufacturer documentation identifies the 8106-TI-RT as a four-channel RTD/resistance input module for safe-area or Zone 2/Division 2 applications, subject to the applicable installation requirements.

Main Features

The 8106-TI-RT provides several functions intended for industrial temperature acquisition:

• Four independent RTD or resistance input channels
• Support for 2-, 3-, and 4-wire RTD connections
• Configurable sensor type
• User-defined input dead zone
• Selectable input filtering
• High and low alarm functions
• Channel status indication
• Open-circuit sensor detection
• Optional upscale response for open-circuit conditions
• PAC8000 Railbus communication architecture

These functions allow the module to accommodate different temperature sensing requirements while reducing the need for separate signal-conditioning hardware.

Design and Signal Processing

Internally, the module uses a multiplexed analog acquisition architecture. Field RTD signals are selected through the input multiplexer and converted through the A/D stage before being made available to the PAC8000 system.

The configurable input arrangement is particularly useful when different sensor installation methods are encountered. Two-wire, three-wire, and four-wire RTD configurations can be accommodated, allowing the module to be integrated into a variety of existing instrumentation layouts.

The module also provides configurable filtering options, including disabled filtering, two-reading averaging, and running averaging.

Industrial Applications

GE Fanuc 8106-TI-RT is suitable for temperature monitoring and resistance measurement in applications such as:

• Process automation
• Chemical and petrochemical plants
• Power generation
• Oil and gas facilities
• Heating and thermal systems
• Manufacturing equipment
• Machinery temperature monitoring
• Industrial instrumentation
• PAC8000 remote I/O installations

Its four-channel configuration provides a practical solution when several temperature points need to be collected through a single PAC8000 I/O node.

Installation and Maintenance

Before installation, verify the complete 8106-TI-RT part number, PAC8000 carrier configuration, field terminal arrangement, sensor type, and wiring method. The selected RTD wiring configuration should correspond to the actual field sensor installation.

During maintenance, inspect terminal connections for looseness, oxidation, contamination, or damaged wiring. If abnormal temperature values are reported, check the RTD sensor, field wiring, terminal assembly, channel configuration, and module status before replacing the I/O module.

The compatible field-terminal arrangement should also be verified against the PAC8000 documentation. GE documentation identifies 8606-FT-RT as a compatible RTD field-terminal option.