1. Product Description The BENTLY NEVADA 3500/50Mis a dual-channel tachometer module designed for precise shaft speed, acceleration, and direction monitoring in rotating machinery. As part of the 3500 Monitoring System, it accepts inputs from proximity probes or magnetic pickups, delivering real-time data for predictive maintenance in critical applications. With configurable alarm setpoints and a built-in keyphasor signal generator, the 3500/50M eliminates the need for a separate keyphasor module, reducing system complexity. Its hot-swap capability and rugged design make it suitable for power plants, oil refineries, and industrial machinery.
2. Technical Specifications
Parameter
Specification
Model
3500/50M
Function
Tachometer Module
Channels
2 (Dual-channel)
Input Signals
Proximity probes (0–20 VDC) or magnetic pickups
Output
Digital speed/acceleration signals, keyphasor
Power Supply
24 VDC ±10% (from 3500 Series rack)
Mounting
3500 Series rack (front slot)
Dimensions
263 mm × 58 mm × 28 mm (W × H × D)
Weight
4.3 kg
Operating Temperature
-40°C to +70°C
BENTLY 3500/50M
3. Advantages and Features
Dual-Channel Redundancy: Simultaneously monitors two shafts or redundant paths for critical systems.
Flexible Alarming: Supports speed, acceleration, and reverse rotation alarms with user-programmable setpoints.
Peak Hold Function: Stores maximum speed, reverse speed, or reverse rotation count for post-event analysis.
Hot-Swap Design: Enables module replacement without system shutdown, minimizing downtime.
4. Application Areas and Use Cases Industry Applications:
Power Generation: Steam and gas turbines.
Oil & Gas: Compressors and pumps in offshore platforms.
Manufacturing: High-speed production lines and conveyor systems.
Case Study: A North American petrochemical plant reduced compressor failures by 30% using the 3500/50M to detect sudden speed fluctuations. Early intervention through alarm notifications saved $800,000 in repair costs.
5. Competitor Comparison
Higher Integration: Combines tachometer and keyphasor functions in one module, unlike standalone alternatives.
Wider Temperature Range: Operates reliably in extreme conditions compared to some competitors.
6. Selection Recommendations
System Compatibility: Ensure compatibility with 3500 Series racks and 3500/42M monitors.
Input Type: Choose proximity probes for non-contact measurements or magnetic pickups for cost-effective solutions.
Redundancy Needs: Opt for TMR modules in applications where single-channel failure risks are high.
7. Precautions
Installation: Install in front slots only to avoid signal interference with rear-mounted modules.
Calibration: Regularly verify sensor alignment and signal integrity to maintain accuracy.
Firmware Updates: Apply BENTLY-recommended updates to access new features and security patches.
山西鑫业达国际贸易有限公司 provides BENTLY NEVADA 3500/50M and automation solutions. Visit www.xydcontrol.com for technical support and product inquiries.
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Full 12-month warranty on all components
Full 12-month warranty on all components
