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The 172103-01 is a high-density 16-point hardware block that integrates screw terminal rows on the 3500 rack rear for raw multi-wire heat sensor wiring, delivering millivolt/resistance digitization with bad-sensor detection and full multi-channel voting array compatibility.
Function: Physical interface for 3500/65 main card to process field RTD/TC signals
Density: 16 channels per single slot, minimizing cabinet and rack footprint
The Bently Nevada 172103-01 operates as the 16-channel temperature internal termination I/O module within the 3500/65 machinery protection monitor platform. This I/O framework provides 16 channels of continuous temperature monitoring and accepts both resistance temperature detector (RTD) and isolated tip thermocouple (TC) temperature inputs directly landed on its rear integrated terminals. The monitor conditions these inputs and compares them against user-programmable alarm setpoints to safeguard critical rotating machinery.
The overall system is configured using the 3500 Rack Configuration Software. You can program the 16-Channel Temperature Monitor via the 172103-01 interface to accept isolated tip thermocouples, 3-wire RTD, 4-wire RTD, or any combination of TC and RTD inputs. In Triple Modular Redundant (TMR) configurations, you must install temperature monitors in groups of 3 adjacent monitors. In this setup, the 172103-01 backplane architecture accommodates dual-layer voting mechanisms to ensure highly accurate, fault-tolerant operation and to avoid single-point failures across critical industrial infrastructure.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 172103-01 I/O Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power Generation
Used for core asset protection of large steam turbine-generator units. It monitors high- and IP-rotor thrust bearing pad temperatures and generator stator winding temperatures to prevent rubs or insulation breakdown from overheating.
Hydroelectric Power Plants
Applied in health monitoring for massive hydro-generator units. It performs high-density acquisition of turbine thrust/guide bearing and generator rotor/stator temperatures to eliminate bearing burnout from water hammers or sudden load swings.
Nuclear Power Industry
Deployed in critical pump group and turbine monitoring across nuclear islands and conventional islands. It tracks reactor coolant pump motor bearing and steam turbine bearing temperatures, ensuring safety-grade outputs via TMR voting.
Wind Power Generation
Used in megawatt-class offshore and onshore wind turbines. It monitors main shaft bearings, multi-stage gearbox bearings, and doubly-fed/permanent-magnet generator winding temperatures to mitigate fire hazards from prolonged heavy-load operations.
Chemical Fertilizer & Ammonia Synthesis
Used in ammonia synthesis compressor trains and CO2 compressors handling hazardous high-pressure, hydrogen-rich media. It delivers high-density logging of compressor bearing and shaft-seal temperatures, utilizing open-circuit/broken-wire diagnostics to eliminate false trips.
When using the 172103-01 internal termination module, note that sensor cables land directly on the rear of the rack, field shields must be properly grounded at a single point on the chassis side, and routing parallel to high-power cables is strictly prohibited to prevent noise-induced temperature spikes.
Due to its high-density 16-channel architecture, handle the pluggable terminal connectors gently—never tilt or force them during removal or insertion—to safeguard the rear mating pins against bending or damage.For thermocouple configurations, verify that software programming is accurate and that the Cold-Junction Compensation (CJC) thermistor maintains solid thermal contact.
Lastly, when executing Triple Modular Redundant (TMR) setups or firmware upgrades, strictly follow Bently Nevada's official removal and matching procedures to prevent a localized issue from causing channel-level false alarms.
Technical notes
Technical notes
The Bently Nevada 172103-01 is a rear I/O module (Internal Termination Tim/Terminal Card) specifically designed for the 3500/65 16-Channel Temperature Monitor. It provides 16 independent physical channels supporting both Resistance Temperature Detector (RTD) and Thermocouple (TC) inputs to monitor critical temperatures, such as bearings and windings, in large industrial rotating machinery.
The 172103-01 is a 16-channel temperature input/output (I/O) module used in the Bently Nevada 3500/65 machinery protection system, providing internal termination for field signals.
How is the 172103-01 module typically installed and used?
It is installed in the rear of a 3500 rack, connecting directly to the 3500/65 front card, with sensors wired directly to its internal terminals.
How many temperature channel inputs can the 172103-01 accommodate?
The module supports high-density monitoring, capable of processing up to 16 physical temperature points simultaneously.
What types of industrial temperature sensors can the 172103-01 support?
It supports Resistance Temperature Detectors (RTD) and Isolated Tip Thermocouples (TC) for various applications.
What is the difference between 172103-01 and external termination modules?
Unlike 172109-01, the 172103-01 offers internal termination, allowing direct connection of field wires to the rear of the rack, minimizing extra terminal blocks.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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