Product Introduction
The code 3500/72 176449-08+135489-01 typically refers to a vibration monitoring system kit from Bently Nevada (now part of Baker Hughes). This specific configuration is centered around the 3500/72 Proximitor® Seismic Monitor, a crucial module designed to protect critical rotating machinery by monitoring both relative shaft vibration (via proximity probes) and absolute casing vibration (via seismic transducers). The kit likely includes the necessary interface modules, cables, and accessories for a complete channel setup. Its primary function is to provide comprehensive mechanical protection, detect unbalance, misalignment, bearing issues, and structural problems, enabling predictive maintenance and preventing catastrophic failures.
Technical Parameters & Specifications
| Parameter Category | Specification |
|---|---|
| Core Module | 3500/72 Proximitor® Seismic Monitor |
| Primary Inputs | • Two Relative Vibration inputs (from 3300/7200 series proximity probes) • One Absolute (Seismic) Vibration input (from a velocity transducer or accelerometer) |
| Key Monitoring Functions | • Relative Shaft Vibration (Gap Voltage, Amplitude, Phase) • Absolute Casing Vibration (Velocity or Acceleration) • 4-20 mA outputs for each parameter |
| Alarm Capabilities | Two programmable alarm levels (Alert and Danger) per monitored parameter. |
| Power Supply | Typically +24 VDC from the 3500 system rack. |
| Dimensions (H x W x D) | Approx. 206 mm x 52 mm x 258 mm (8.1 in x 2.05 in x 10.15 in) - Standard 3500 series single-slot module size. |
| Weight | Approx. 0.9 kg (2.0 lbs). |
| Operating Temperature | -30°C to +65°C (-22°F to +149°F). |
| Compatibility | Designed for installation in a 3500 series rack (e.g., 3500/15, 3500/25). |
| Associated Components | • 176449-08: Likely a mounting bracket, junction box, or specialized cable assembly for probes/transducers. • 135489-01: Likely a specific velocity transducer (e.g., 135489-01 is known as a Seismic Velocity Transducer), cable, or accessory kit. |
Application Scenarios
This system is deployed in industries where the health of high-value, critical rotating equipment is paramount:
Power Generation (Gas & Steam Turbines): Monitors turbine-generator sets for shaft vibration and bearing cap vibration, protecting against imbalance and structural resonance.
Oil & Gas (Compressors & Pumps): Used on centrifugal and axial compressors, high-pressure injection pumps, and pipeline pumps to detect surge, misalignment, and bearing degradation.
Petrochemical & Refining: Protects large critical machinery like catalytic cracker blowers, compressor trains, and boiler feed pumps from unexpected downtime.
Heavy Industrial Manufacturing: Monitors large motors, fans, and gearboxes where both shaft motion and structural vibration are concerns for reliability.
Predictive Maintenance Programs: The dual monitoring capability provides a more complete picture of machine health, allowing maintenance to be planned based on actual condition rather than fixed schedules.
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