Description
BENTLY NEVADA 3500/50M Tachometer Monitor
The
BENTLY NEVADA 3500/50M is a high-performance tachometer monitor module designed for critical rotating machinery applications. As part of the
3500 Series, it supports dual-channel input from proximity probes or magnetic sensors to measure shaft speed, rotor acceleration, and rotational direction. With programmable alarm setpoints and real-time data processing, the module ensures precise condition monitoring and early fault detection. Its robust industrial design, EMI/RFI shielding, and compliance with API 670 standards make it ideal for harsh environments in oil & gas, power generation, and manufacturing.
Parameter |
Specification |
Model |
3500/50M |
Channels |
2 channels |
Input Types |
Proximity probes (eddy current) or magnetic sensors |
Speed Range |
0–100,000 RPM |
Accuracy |
±0.01% of reading |
Power Supply |
24 Vdc ±10% |
Communication |
Ethernet, Serial (Modbus RTU), CAN |
Temperature Range |
-40°C to +85°C |
Dimensions |
140 mm × 100 mm × 120 mm |
Weight |
0.8 kg |

- Dual-Channel Redundancy: Ensures continuous monitoring even if one channel fails.
- Wide Compatibility: Works with BENTLY NEVADA’s 3300XL sensors and third-party magnetic sensors.
- Solid-State Design: Reduces mechanical wear and downtime compared to legacy electromechanical systems.
- Real-Time Data Processing: Enables instantaneous alarm triggering and trend analysis.
- Remote Configuration: Supports over-the-air updates and diagnostics via BENTLY’s 3500 组态软件.
- Oil & Gas: Monitoring pump and compressor speeds in drilling platforms.
- Power Generation: Tracking turbine rotor acceleration in thermal plants.
- Manufacturing: Controlling conveyor belt speeds in automotive assembly lines.
Case Study: A North American refinery reduced unplanned shutdowns by 20% using the 3500/50M to detect overspeed conditions in centrifugal pumps, enabling predictive maintenance and cost savings.
The 3500/50M outperforms comparable modules by:
- Offering dual-channel redundancy (vs. single-channel alternatives).
- Supporting higher speed ranges (up to 100,000 RPM vs. 50,000 RPM).
- Including built-in EMI/RFI protection without external filters.
- System Complexity: Choose the 3500/50M for multi-axis systems requiring redundancy.
- Environment: Opt for this module in high-vibration or high-temperature settings.
- Integration: Pair with BENTLY’s 3500 Series framework for seamless data aggregation.
- Sensor Alignment: Ensure proper probe-to-target spacing (0.5–1.5 mm for eddy current sensors).
- Cable Management: Use shielded cables and avoid routing near high-voltage lines.
- Calibration: Perform annual checks to maintain accuracy.
山西鑫业达国际贸易有限公司 specializes in
BENTLY NEVADA 3500/50M and automation spare parts. Visit
www.xydcontrol.com for sales and technical support.
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