Description
Bently Nevada 3500/72M-03-00 Speed Monitor Technical Profile
1. Product Details
- Core Composition: A dedicated 4-channel speed and oversafety protection module for the Bently Nevada 3500 Machinery Protection System, assembled from the main processing board 176449-08 and the matching I/O termination module 140471-01.
- Physical Specs: Half-height industrial-grade design, dimensions 241mm × 24.4mm × 119.1mm, net weight 0.38kg, manufactured in the USA, supplied as brand new original unit with 12-month factory warranty.
- Electrical Specs: Typical power consumption 3.5W, compatible with standard Bently Nevada proximity probes and magnetic pickup sensors, operating temperature range from -40°C to +85°C for harsh industrial deployment.
2. Primary Applications
- Critical Rotating Machinery Overspeed Protection: Deployed on steam turbines, centrifugal compressors, large industrial fans and gas turbines to deliver real-time speed monitoring and overspeed interlock protection.
- Industrial Scenarios: Widely adopted in power generation, petrochemical, oil & gas transmission and metallurgy industries, fully compliant with API 670 and IEC 61508 SIL 2 safety standards.
- System Integration: Seamlessly installed in any valid slot of the 3500 series rack, natively connected to the System 1 condition analysis platform for speed trend tracking and fault diagnosis.
3. Related Series Models
- Core Configuration Variants: 3500/72M-00-00 (basic 2-channel speed), 3500/72M-01-00 (standard 4-channel speed), 3500/72M-02-00 (keyphasor + speed combined), 3500/72M-03-00 (full-function 4-channel overspeed protection), 3500/72M-04-00 (ATEX hazardous area certified version).
- I/O Terminal Variants: Non-isolated internal termination, isolated external termination, intrinsically safe barrier termination for different field wiring and explosive zone deployment requirements.
- Cross-System Compatible Models: Interoperable with 3500/25 Enhanced Keyphasor Module, 3500/33 Relay Module and other 3500 series units to form a complete TMR (Triple Modular Redundancy) overspeed protection system.
4. Core Features
- 4 Independent High-Precision Channels: Each channel supports independent speed measurement, no mutual interference, enabling TMR redundant configuration for safety-critical overspeed protection scenarios.
- Fully Customizable Protection Logic: All alarm and danger setpoints are user-configurable via the 3500 Rack Configuration Software, supporting flexible voting logic to match specific application safety requirements.
- High-Reliability Industrial Design: Hot-swappable under powered status, with front-panel LED indicators for real-time channel and module health status, supporting 7×24h continuous operation.
5. Main Functions
- High-Precision Speed Measurement: Captures real-time shaft rotational speed from sensor inputs, delivering accurate speed data with wide dynamic range covering full equipment startup to full-load operation.
- Overspeed Protection & Alarm: Triggers pre-configured alert signals and interlock trip outputs immediately when rotational speed exceeds user-defined safety thresholds, preventing catastrophic equipment damage caused by overspeed.
- Keyphasor & Phase Reference Processing: Supports keyphasor signal input, providing phase reference data for synchronous vibration analysis and machinery fault diagnosis workflows.
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