Description
BENTLY 133442-01 Tachometer and Vibration Monitoring I/O Module
The
BENTLY 133442-01 is a dual-function I/O module designed for the
BENTLY 3500 Machinery Protection System, specializing in tachometer and vibration monitoring for rotating machinery. This module supports inputs from proximity probes, magnetic pickups, and accelerometers, delivering real-time data for predictive maintenance. It integrates seamlessly with BENTLY’s ecosystem, enabling users to configure alarm thresholds and track critical parameters like shaft speed, acceleration, and direction. Rated for SIL 2 compliance, the
BENTLY 133442-01 is built for harsh industrial environments, ensuring reliability in power plants, refineries, and manufacturing facilities.
Parameter |
Specification |
Input Types |
Proximity probes, magnetic pickups |
Channels |
2 channels (tachometer), 8 analog/digital |
Voltage Range |
18–36 V DC (module power) |
Input Signal Range |
±10 V to -24 V DC |
Temperature Range |
-40°C to +85°C |
Communication |
Modbus TCP/IP, Ethernet (optional) |
Certifications |
CE, UL, SIL 2 compliance |
Dimensions |
220 mm × 110 mm × 45 mm |

BENTLY 133442-01
- Dual-Function Capability: Simultaneously monitors shaft speed and vibration for comprehensive machinery health assessment.
- Programmable Alarms: Configurable setpoints for speed, acceleration, and reverse rotation detection.
- Wide Compatibility: Supports multiple sensor types, reducing the need for additional modules.
- Rugged Design: Withstands extreme temperatures, humidity, and vibrations.
- Hot-Swap Support: Enables module replacement without system downtime.
Industries:
- Power generation
- Petrochemicals
- Manufacturing
- Aerospace
Case Study:
A U.S. power plant deployed the BENTLY 133442-01 to monitor turbine shaft speeds and vibrations. By detecting an unexpected drop in rotational speed, the module triggered an early shutdown, preventing a $2 million turbine failure and reducing downtime by 72 hours.
The BENTLY 133442-01 stands out for its dual-function integration and SIL 2-rated safety features, surpassing single-purpose tachometer modules. Its modular design and compatibility with BENTLY’s 3500 Rack system simplify retrofitting compared to legacy solutions, while its wide temperature range ensures suitability for extreme environments.

BENTLY 133442-01
- Sensor Compatibility: Verify support for your proximity probe or magnetic pickup type.
- Environmental Needs: Ensure the module’s temperature and humidity ratings align with your site conditions.
- Scalability: Consider future expansion, as the 3500 Rack supports up to 16 modules per frame.
- Calibration: Use BENTLY’s TK3 Probe Checker for sensor calibration.
- Wiring: Follow API 670 guidelines for shielded cabling in hazardous areas.
- Firmware Updates: Regularly update software to access new features and security patches.
山西鑫业达国际贸易有限公司 is your trusted partner for
BENTLY 133442-01 and other automation spare parts. Visit our website
www.xydcontrol.com or contact us for sales and technical support.
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