Bently Nevada 133442-01

Parameters

Advantages & Features

• Precision Proximity Measurement – The Bently Nevada 133442-01 provides high-accuracy shaft vibration and position measurement for critical machinery protection.

• Integrated Probe Driver – Built-in oscillator and demodulator for Bently Nevada 3300 XL probes, eliminating external drivers.

• Buffered Output – Provides buffered probe signal for diagnostic testing without interrupting the main monitoring path.

• Comprehensive Diagnostics – Continuous probe open/short detection and gap voltage monitoring ensure signal integrity.

• SIL 2 Capable – Suitable for safety-critical overspeed and vibration protection with appropriate voting.

• Bently Nevada 3500 Integration – Native plug-in compatibility with 3500 racks for seamless system integration.

Application Cases

• Turbine Shaft Vibration Monitoring – Measures radial vibration on gas and steam turbine shafts for protection and diagnostics.

• Axial Position Monitoring – Tracks thrust bearing position to detect axial shifts and prevent thrust bearing damage.

• Shaft Eccentricity Measurement – Monitors shaft bow during turbine startup and coast-down.

• Compressor Surge Detection – Measures shaft vibration to detect incipient surge conditions in centrifugal compressors.

Competitor Comparison

The Bently Nevada 133442-01 is a trusted standard for proximity monitoring in the 3500 series platform, offering proven reliability in power generation and heavy industry.

Selection Suggestions

• Choose for Bently Nevada 3500 series systems requiring 2-channel proximity probe monitoring for vibration, axial position, or eccentricity.

• Select the calibration range based on application: standard (2mm) for general vibration, extended (4mm) for large shaft movements.

• For SIL 2 applications, use with voting logic (2-out-of-3) and proof-testing every 24 months.

• Ensure compatible probe type and cable length (typically 9m max for 3300 XL).

• Pair with Bently Nevada 3300 XL probes and extension cables.

Precautions

• Probe Compatibility – The Bently Nevada 133442-01 is designed for Bently Nevada 3300 XL and 7200 series probes. Using non-Bently probes may cause inaccurate readings.

• Cable Length – Maximum cable length (probe + extension) is 9.0m for 3300 XL systems. Exceeding this will affect accuracy and linearity.

• Probe Gap Setting – Set the static gap within the specified range (-1.5V to -24V DC). Incorrect gap will cause measurement errors and false alarms.

• Grounding – Proper grounding of the probe cable shield is critical to prevent noise pickup. Connect shield to the Bently Nevada 133442-01 common terminal at the module end only.

• Target Material – Proximity probes are calibrated for specific target materials (AISI 4140 steel). Different materials will affect sensitivity — recalibrate for non-standard materials.

• Temperature Effects – The Bently Nevada 133442-01 includes temperature compensation. However, extreme temperature gradients between the probe and module may introduce errors.

• Calibration – Factory calibration is valid for 24 months. Recalibrate using a certified target calibrator and Bently Nevada calibration procedure.

• ESD Handling – Use ESD-safe practices when handling the Bently Nevada 133442-01. Proximity probe inputs are sensitive to electrostatic discharge.