Description
Product Parameters
- Model Number: 3500/45
- Part Number: 176449-04
- Module Type: Position Monitor
- Channel Count: 4 Channels
- Input Types: Proximitor Transducers, Rotary Potentiometers, RVDTs, LVDTs
- I/O Module Type: Position I/O Module with Internal Terminations
- Signal Range: 4 to 20 mA or -10 to +10 VDC (depending on configuration)
- Accuracy: Within ±0.33% of full-scale
- Operating Temperature: -30°C to +65°C (-22°F to +150°F)
- Mounting: 3500 System Rack Slot
The 3500/45 176449-04 is a specialized four-channel monitor designed to track absolute or relative position measurements such as axial thrust, case expansion, and valve position. Unlike dynamic vibration modules, this position monitor processes slow-moving DC signals to ensure critical mechanical clearances are maintained within safe operating limits. It provides continuous monitoring and programmable alarms, allowing for automatic machinery protection and integration with the 3500 system’s communication gateway for plant-wide data analysis.
Comparison with Similar Models
The 3500/45 is distinct from other 3500 series modules due to its specific focus on static displacement and position:
- 3500/45 vs. 3500/42M: While the 3500/42M is designed for dynamic “vibration” and high-frequency movement, the 3500/45 is optimized for “position” (DC) measurements. If you need to monitor how far a valve has opened or how much a turbine case has expanded due to heat, the 45 is the appropriate choice.
- 3500/45 vs. 3500/40M: The 40M is primarily a proximity monitor used for radial vibration and thrust. While there is overlap in thrust monitoring, the 3500/45 supports a wider variety of transducer types like LVDTs (Linear Variable Differential Transformers), which are essential for measuring large-scale mechanical displacement.
- 176449-04 vs. 176449-02: These I/O modules look identical but are keyed differently for their respective main modules. The 176449-04 is specifically engineered for Position Monitor signals, ensuring the correct power and impedance are supplied to position-sensing transducers compared to the proximity/seismic focus of the -02 version.
