


Position I/O Module with External Terminations for the 3500/45 Position Monitor
The Bently Nevada 3500/45-02-00, spare part number 135145-01, is a Position I/O Module with External Terminations designed for use with the 3500/45 Position Monitor. It interfaces with Proximitor® Sensors, Rotary Position Transducers (RPTs), and DC Linear Variable Differential Transformers (DC LVDTs) to measure critical machine parameters such as thrust position, differential expansion, case expansion, and valve position.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model | 3500/45-02-00 |
| Spare Part Number | 135145-01 |
| Product Type | Position I/O Module |
| Monitor Compatibility | 3500/45 Position Monitor |
| Termination Type | External Terminations |
| Supported Sensors | Proximitor® Sensors, RPTs, DC LVDTs |
| Installation | Rear slot of 3500 rack |
| Typical Power Consumption | 7.7 W |
| Input Impedance | 10 kΩ (Proximitor/RPT), 1 MΩ (DC LVDT) |
| External Termination Block | Required (ordered separately) |
Typical Applications
The 3500/45-02-00 Position I/O Module is commonly used in:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Hydro turbines
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Pumps
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Industrial motors
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Process control systems
Typical monitoring functions include:
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Thrust position
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Differential expansion
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Valve position
-
Case expansion
Key Features
External Termination Design
The module uses external termination blocks, allowing field wiring to remain in place during maintenance or replacement, reducing downtime. External termination blocks must be ordered separately.
Multiple Transducer Support
Compatible with:
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Proximitor® Sensors
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Rotary Position Transducers (RPTs)
-
DC LVDTs
This flexibility allows one monitor platform to support a variety of position measurements.
Four-Channel Position Monitoring
The 3500/45 Position Monitor accepts up to four inputs and can be configured to monitor:
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Axial (thrust) position
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Differential expansion
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Case expansion
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Valve position
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Other supported position measurements
Channels are programmed in pairs using the 3500 Rack Configuration Software.
Reliable Machinery Protection
The module conditions incoming transducer signals and enables the Position Monitor to compare measured values against user-defined alarm setpoints, supporting continuous machinery protection.
Frequently Asked Questions
1. What is the function of the 135145-01 module?
It serves as the external Position I/O Module for the 3500/45 Position Monitor, interfacing with Proximitor®, RPT, and DC LVDT sensors.
2. What sensors are supported?
The module supports:
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Proximitor® Sensors
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Rotary Position Transducers (RPTs)
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DC LVDTs
3. What does the "02" option indicate?
It identifies the Position I/O Module with External Terminations.
4. What does the "00" approval option mean?
The 00 option indicates no agency approvals. Versions with other approval codes are available for hazardous-area applications.
5. Does this module include the external termination block?
No. External termination blocks and transducer cables are ordered separately.
6. How many inputs does the module support?
It supports up to four signal inputs, depending on the monitor configuration.
7. What is the typical power consumption?
Typical power consumption is approximately 7.7 W when using the Position I/O Module.
8. Which measurements can the 3500/45 perform with this module?
The monitor can measure thrust position, differential expansion, case expansion, valve position, and other supported position parameters based on the configured transducer type.