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 Xinyeda International Trade Co., Ltd. is your trusted supplier of BENTLY 3500/15-05-05-00 and 3500 Series spares. Visit www.xydcontrol.com for technical support, including pre-configured racks and on-site commissioning, ensuring seamless integration into your machinery protection system.
