Description
BENTLY NEVADA 3500/54 133396-01 Overspeed Detection I/O Module
The
BENTLY NEVADA 3500/54 133396-01 is a high-reliability overspeed detection I/O module designed for critical rotating machinery protection systems. Part of the
3500 Series by BENTLY Nevada, this module supports redundant configurations (2-out-of-2 or 3-out-of-3 voting) to meet API 670 and API 612 standards for safety-critical applications. It interfaces with proximity probes or magnetic pickups to monitor rotational speed, triggering rapid shutdowns to prevent catastrophic failures in turbines, compressors, and pumps.
Parameter |
Specification |
Model |
3500/54 133396-01 |
Brand |
BENTLY Nevada |
Input Type |
Proximity probe or magnetic pickup |
Voltage Range |
+10 VDC to -24 VDC (internally clamped) |
Frequency Range |
0.0167 Hz to 10 kHz |
Operating Temperature |
-30°C to +65°C |
Weight |
0.45 kg |
Certifications |
CE, API 670 (optional) |
Redundancy Support |
2-out-of-2 or 3-out-of-3 voting |

- Rapid Response: Triggers shutdowns in milliseconds to protect machinery from overspeed events.
- Redundant Design: Dual-channel configuration ensures system reliability even during component failures.
- API Compliance: Meets rigorous safety standards for oil & gas and power generation industries.
- User-Friendly Interface: Front-panel LEDs for status monitoring (OK, TX/XR, bypass, test mode, alarms).
- Flexible Threshold Settings: Auto or manual threshold adjustment with 0.2–2.5 V hysteresis.
- Oil & Gas: Monitoring gas turbines in offshore platforms.
- Power Generation: Protecting steam turbines in nuclear power plants.
- Manufacturing: Preventing overspeed in high-speed rotating equipment.
Case Study: A Middle Eastern refinery reduced downtime by 35% using the 3500/54 133396-01 to monitor compressor trains, detecting speed deviations 50% faster than legacy systems.
Compared to alternative overspeed modules, the 3500/54 133396-01 offers:
- Higher Redundancy: Native support for 3-out-of-3 voting systems.
- Faster Sampling: 10 kHz frequency response for precise speed measurements.
- Simplified Integration: Direct compatibility with BENTLY’s 3500 Series racks and sensors.

- System Requirements: Ensure compatibility with your 3500 rack’s power supply and redundancy needs.
- Environment: Verify temperature and vibration resistance for your installation site.
- Safety Standards: Choose optional API 670 certification for critical applications.
- Installation: Follow BENTLY’s wiring guidelines to avoid signal interference.
- Calibration: Regularly verify sensor alignment and signal thresholds.
- Testing: Perform periodic bypass and test mode checks to ensure module functionality.
山西鑫业达国际贸易有限公司 is your trusted partner for
BENTLY NEVADA 3500/54 133396-01 and other automation spare parts. Visit
www.xydcontrol.com or contact us for sales and technical support.
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