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- Bently Nevada
- 3500/64M 176449-05
- Dynamic Pressure Monitor
- USA
- 26 mm × 258 mm × 240 mm
- 0.8kg
- Xiamen, China
- New & In Stock
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1. Product Overview
Model: 3500/64M 176449‑05
Brand: Bently Nevada
Series: 3500 Series — Dynamic Pressure Monitor / Machine Protection
The Bently Nevada 3500/64M 176449‑05 is a dynamic pressure monitoring module designed to detect and analyze rapidly changing pressure signals in industrial machinery and process systems. It supports multiple high‑temperature pressure transducer inputs (1‑4), and provides band‑pass dynamic pressure measurement per channel. It is used to trigger alarms when pressure fluctuations exceed configured thresholds. Part of the 3500 modular platform for protection and condition monitoring, this monitor module is built for rugged environments, with wide temperature ranges and robust signal processing.
2. Technical Specifications
Here are known specifications for 3500/64M 176449‑05, including size and weight:
| Parameter | Specification |
|---|---|
| Model | 3500/64M 176449‑05 |
| Function | Dynamic Pressure Monitor |
| Input Channels | Accepts 1 to 4 pressure transducer inputs |
| Input Impedance | 3‑wire transducer: ~10 kΩ 2‑wire transducer: ~1.5 MΩ to ~3.5 MΩ typical |
| Sensitivity / Dynamic Pressure Scale | 100 mV / psi (≈ 1.45 mV / mBar) |
| Frequency Response | Low mode: ~5 Hz to ~4 kHz High mode: ~10 Hz to ~14.75 kHz |
| Output Impedance | ~550 Ω |
| Recorder / Analog Outputs | Recorders: +4‑20 mA proportional to full scale per channel; buffered outputs; short‑circuit protection |
| Operating Temperature | ‑55°C to +85°C (sensor input and module) |
| Storage Temperature | Approximately ‑40°C to +85°C |
| Humidity | 5% to 95% non‑condensing |
| Operating Voltage | 24 VDC (nominal) |
| Power Consumption | ~ 12 Watts (typical highest draw when fully utilized) |
| Size / Dimensions (HxWxD) | 2.6 cm × 25.8 cm × 24 cm (≈ 26 mm × 258 mm × 240 mm) |
| Weight | 0.8 kg |
| Environmental / Protection | Designed for industrial environments; front‑panel LEDs for OK / TX‑RX / Bypass; alarm functions; module designed for integration into 3500 rack system |
3. Applications
Typical uses for 3500/64M 176449‑05 include:
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Monitoring dynamic pressure fluctuations in high‑temperature pressure sensors on machinery (pumps, compressors, turbines)
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Detecting abnormal pressure pulses, surges, or vibration‑induced pressure transients that may signal mechanical problems (valve failure, resonance, misalignment)
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Process control in plants where dynamic pressure impacts safety or product quality (chemical reactors, pipelines)
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Machine protection: triggering alarms or shutdowns when dynamic pressure exceeds safe thresholds
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Predictive maintenance: trend‑monitoring of dynamic pressure to anticipate wear or failure before breakdowns
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Environments with harsh ambient conditions, where module’s durability and wide temperature range allow reliable performance
4. Key Advantages
Here are the advantages of using this model:
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Multi‑Channel Capability: Supports up to 4 input channels in one slot, allowing monitoring of several pressure sensors with one module.
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High Sensitivity & Fast Response: Because of dynamic pressure scale (100 mV/psi) and frequency response to ~14.75 kHz, it detects fast pressure events.
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Wide Environmental Range: Works over broad temperature span (‑55°C to +85°C) and high humidity non‑condensing, suitable for harsh industrial settings.
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Flexible Sensor Inputs: Supports both 2‑wire and 3‑wire pressure transducers; good input impedance ranges.
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Alarm & Diagnostic Features: Built‑in LED status indicators (OK, TX/RX, Bypass), capability to set alarm thresholds, band‑pass modes (low/high), and output to recorders.
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Compact & Modular: Fits into 3500 rack modular architecture, simplifying integration with existing protection / monitoring systems.
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Robust Construction: Designed for durability, for repeated use, reliable operation and low maintenance.
5. Brand & Series
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Brand: Bently Nevada
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Series: 3500 Series — dynamic and static monitoring modules for machinery protection and condition monitoring
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Module Group: 64M dynamic pressure monitor family
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Fully compatible within the 3500 rack system, leveraging the ecosystem of sensors, alarms, recorders, and integration tools.
6. Related / Similar Models (Same Series or Close)
Here are 5 related models in same series or closely functioning modules, with parameter comparisons:
| Model | Function / Key Features | Channels | Dimensions & Weight | Differences / Use Cases |
|---|---|---|---|---|
| 3500/64M 176449‑05 | Dynamic Pressure Monitor; 1‑4 sensor inputs; high sensitivity; wide environmental range | 1‑4 | 2.6 cm × 25.8 cm × 24 cm; 0.8 kg | Baseline model under discussion |
| 3500/64M 140471‑02 | Another variant of dynamic pressure monitor; similar channel count & signal type | ~4 | Similar physical size; weight ~0.82 kg | May differ in filtering or output options |
| 3500/64 176449‑03 | Non‑M version / older revision; dynamic or process pressure monitor | ~4 | Slightly different size or power consumption | Possibly lower frequency response or fewer features |
| 3500/63 163179‑04 | Hazardous gas monitor (different kind of measurement) | 6 | Smaller module size, approx 0.3‑0.5 kg | For gas detection rather than pressure dynamics |
| 3500/62 136499‑01 | Process Variable Monitor (pressure, temperature, flow etc.) | 6 | Comparable rack size; weight ~0.45‑0.8 kg | For slower process variable measurements rather than fast dynamic pressure pulses |
7. Other Popular Models from the Same Brand
Here are 5 widely used Bently Nevada modules, popular in similar protection / monitoring systems:
| Model | Function / Role | Key Parameters |
|---|---|---|
| 3500/25 Keyphasor Module | Provides phase reference for vibration/pulse systems | Few input channels, high stability; used for synchronizing vibration & speed data |
| 3500/53 Overspeed Detection Module | Protects against rotor overspeed in turbines/compressors | Fast digital outputs; trip logic; high safety reliability |
| 3500/65 Temperature Monitor | Multi‑channel RTD/thermocouple inputs for temperature tracking | 6‑16 channels; high accuracy; slower signals |
| 3500/20 Rack Interface / Communication | Interface between rack and external systems (SCADA / DCS) | Input/output channels for data aggregation; power supply / communication ports |
| 3500/44M Vibration Monitoring (GT/Aero‑Derivative) | Vibration sensor module for turbine/compressor protection | High frequency response; multiple vibration channels; used in rotating equipment |
8. FAQ (10 Questions & Answers, QA Format)
Q1: How many pressure transducers can be connected to the 3500/64M 176449‑05?
A: It supports between 1 and 4 pressure transducer inputs depending on what your system requires; unused channels can be left inactive.
Q2: What types of pressure transducers are compatible (2‑wire vs 3‑wire)?
A: Both types are compatible. For 3‑wire transducers the input impedance is about 10 kΩ, and for 2‑wire transducers it is in the range of 1.5 MΩ to 3.5 MΩ typically.
Q3: What is the frequency response range of this monitor?
A: It offers a Low mode of roughly 5 Hz to 4 kHz, and a High mode of about 10 Hz to 14.75 kHz, depending on configuration and transducer.
Q4: What is the typical sensitivity or dynamic pressure scale?
A: Sensitivity is approximately 100 mV per psi (which corresponds to ~1.45 mV per mBar) for dynamic pressure.
Q5: What are the size and weight of this module?
A: The physical dimensions are about 2.6 cm × 25.8 cm × 24 cm, and the module weighs approximately 0.8 kg.
Q6: What are the operating temperature and storage temperature ranges?
A: Operating temperature: about ‑55°C to +85°C; storage: roughly ‑40°C to +85°C.
Q7: What output options does it provide?
A: It provides recorder outputs (typically +4‑20 mA per channel) proportional to full‑scale, plus buffered outputs. Also status LEDs (OK, TX/RX, Bypass) for diagnostics.
Q8: How is alarm triggering handled?
A: The module compares measured dynamic pressure (band‑pass filtered) against configured alarm setpoints; when exceeded, it drives alarms. Delay / threshold configuration is usually possible.
Q9: What is the power requirement?
A: Nominal supply is 24 VDC, with maximum power draw given as ~12 W under full load.
Q10: In which industries is this monitor especially useful?
A: Common applications are in power generation, oil & gas, compressor and turbine monitoring, pumps, and chemical processing where fast pressure transients or surges indicate mechanical stress or failure potential.
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