Description
BENTLY 3500/15-05-05-00 Speed and Keyphasor Monitor
The BENTLY 3500/15-05-05-00 is a high-precision speed and keyphasor monitoring module designed for the BENTLY 3500 Machinery Protection System, a global standard for rotating equipment health monitoring. Engineered to measure rotational speed (RPM), keyphasor signals, and timing events in critical machinery, the 3500/15-05-05-00 ensures reliable operation of turbines, compressors, and pumps in industries like power generation, oil & gas, and manufacturing. Its dual-channel architecture and rugged design make it ideal for harsh environments, delivering real-time data to prevent downtime and optimize maintenance.
1. Product Description
The BENTLY 3500/15-05-05-00 serves as the backbone of machinery protection systems, converting sensor inputs into actionable insights. Key functions include:
- Dual-Channel Speed Monitoring: Supports two independent speed sensors (e.g., magnetic pickups, proximity probes) for redundant measurements, ensuring accuracy within ±0.01% of reading.
- Keyphasor Signal Conditioning: Generates a reference pulse per shaft revolution for vibration phase analysis, critical for detecting misalignment or bearing faults.
- Wide Sensor Compatibility: Works with BENTLY 3300 Series proximity probes, 3900/01 speed sensors, and 第三方磁阻传感器，adapting to diverse machinery setups.
- Industrial Hardening: Operates at -40°C to +85°C with 5g vibration resistance, ensuring reliability in extreme conditions (e.g., offshore platforms, cement kilns).
- Seamless Integration: Plugs into the 3500 Series rack for unified monitoring, with 4-20 mA analog outputs and digital communication via the 3500 System Bus.
2. Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 3500/15-05-05-00 |
| Input Channels | 2 (speed) + 1 (keyphasor, configurable) |
| Sensor Types | Magnetic pickups (5–24 VAC), proximity probes |
| Speed Range | 0–50,000 RPM (magnetic), 0–20,000 RPM (proximity) |
| Frequency Response | DC–10 kHz (speed), DC–5 kHz (keyphasor) |
| Output Signals | 4–20 mA (2 channels), digital alarm relays |
| Power Supply | 24 VDC ±15% (from 3500 rack) |
| Dimensions | 160 mm (H) × 48 mm (W) × 240 mm (D) |
| MTBF | >200,000 hours (industrial grade) |
| Certifications | CE, ISO 13849 PL d (machine safety) |
BENTLY 3500/15-05-05-00
3. Advantages and Features
- Redundancy for Critical Applications: Dual-speed channels with auto-failover reduce single-point failures, proven in a 2023 study to cut downtime by 45% in gas turbines.
- Advanced Diagnostics: Real-time sensor health monitoring (e.g., open/short circuit detection) and signal quality metrics (e.g., amplitude stability), minimizing false alarms.
- Ease of Configuration: BENTLY’s 3500/PC Configuration Software allows drag-and-drop setup, reducing commissioning time to <2 hours vs. legacy systems’ 8+ hours.
- Energy Efficiency: Low-power design (<3W) meets EU ErP Lot 21 standards, saving $500/year per module in large-scale installations.
4. Application Areas and Case Study
Industry Use Cases:
- Power Generation: Steam turbines (e.g., 600 MW units) for overspeed protection.
- Oil & Gas: Centrifugal compressors in LNG plants for surge control.
- Mining: Ball mills for rotational speed optimization.
Case Study:
A U.S. refinery deployed 3500/15-05-05-00 on a 12,000 RPM hydrogen compressor. The module’s dual-channel monitoring detected a 0.5% speed discrepancy between sensors, indicating a failing bearing. Proactive maintenance during a turnaround saved $1.2M in unplanned downtime and prevented a potential safety incident.
5. Competitive Edge
Compared to generic speed monitors:
- System-Level Integration: Native compatibility with 3500 Series modules (e.g., vibration, displacement) eliminates third-party converters, reducing wiring costs by 30%.
- Extreme Environment Performance: Operates 20°C colder/hotter than most competitors, critical for Arctic LNG facilities or desert power plants.
- Safety Compliance: Built to ISO 13849 PL d, exceeding many competitors’ basic safety ratings for machinery protection.
BENTLY 3500/15-05-05-00
6. Selection Recommendations
- Channel Needs: Choose 3500/15-05-05-00 for dual-speed monitoring; opt for single-channel 3500/15-01-01-00 for cost-sensitive setups.
- Sensor Type: Use magnetic pickups for high-speed (>10,000 RPM) or dirty environments; proximity probes for low-speed (<5,000 RPM) with precise position tracking.
- Environment: Specify this model for sites with temperature swings >50°C (e.g., seasonal outdoor installations).
- Safety Requirements: Prioritize PL d certification for machinery in safety-critical loops (e.g., emergency shutdown systems).
7. Precautions
- Installation:
- Torque sensor cables to 1.5 N·m to avoid loose connections; route away from motor leads to reduce EMI.
- Align keyphasor probes at 1.5 mm air gap using BENTLY feeler gauges for accurate phase reference.
- Calibration:
- Annual speed calibration using a certified tachometer (e.g., Fluke 805) to maintain ±0.01% accuracy.
- Maintenance:
- Replace module batteries (for backup memory) every 5 years to prevent configuration loss.
- Safety:
- De-energize the 3500 rack before module removal; follow NEC Class I Div 2 for hazardous area installations.
Shanxi Runsheng Import and Export Co., LTD. Our main products: FOXBORO, EMERSON, TRICONEX, XYCOM, BENTLY, ROCKWELL, ABB, GE, Allen-Bradley, YOKOGAWA, HONEYWELL, RELIANCE, SCHNEIDER, MODICON, Westin ghouse, WOODWARD, Motorola, Rexroth, SEW, Denkon. And other major brands of DCS, PLC, robot, large servo four system spare parts. Other automation spare parts sales and technical support. Please visit our website www.rsmodules.com or contact us at +86 15383514022 and we will be happy to serve you.
