BENTLY 330850-50-00

Description

Detailed parameter table

BENTLY 330850-50-00

Product introduction

The BENTLY NEVADA 330850 – 50 – 00 is a high – performance proximity transducer system designed for precise non – contact measurement of shaft position and vibration in rotating machinery. As a key component of BENTLY NEVADA’s 3300 series, it sets the standard for reliability in industrial condition monitoring.

This system combines a rugged 8mm diameter probe, a 5m shielded cable, and integral signal processing to deliver accurate 0 – 10V DC outputs proportional to shaft distance. The BENTLY NEVADA 330850 – 50 – 00 excels at measuring radial vibration, axial position, and rotor eccentricity in critical machinery. In automation systems, it provides the foundational data needed for predictive maintenance, enabling early detection of misalignment, bearing wear, and other mechanical issues that could lead to costly failures.

Core advantages and technical highlights

Non – contact measurement: The 330850 – 50 – 00 uses eddy current technology to measure shaft position without physical contact, eliminating wear and tear on both the transducer and machinery. This non – invasive approach ensures continuous, reliable measurement even in high – speed rotating applications, such as turbine shafts spinning at 3,000 RPM or more. Unlike contact sensors, it never requires replacement due to friction – related damage.

Wide temperature tolerance: With the probe operating from – 25°C to + 120°C and the cable surviving – 40°C to + 85°C, the 330850 – 50 – 00 thrives in extreme environments. This makes it ideal for applications like steam turbine monitoring, where heat from the turbine casing can reach high temperatures, or in cold – weather industrial facilities where ambient temperatures drop below freezing.

High measurement precision: Boasting a sensitivity of 7.87V/mm (200mV/mil) and 0.001mm resolution, the 330850 – 50 – 00 detects minute shaft movements that signal early mechanical issues. For example, it can identify a 0.01mm shift in bearing position—often the first sign of lubrication failure—allowing maintenance teams to address problems before they escalate.

Rugged construction: The probe features a stainless – steel housing resistant to corrosion and mechanical damage, while the shielded cable prevents electromagnetic interference from nearby motors and power lines. This robust design ensures the 330850 – 50 – 00 operates reliably in dirty, humid, or chemically aggressive environments like refineries and paper mills.

Typical application scenarios

In power generation plants, the 330850 – 50 – 00 is installed on steam and gas turbines to monitor radial vibration and thrust position. By measuring shaft movement relative to the bearing housing, it helps operators detect rotor imbalance or misalignment—common issues that can cause catastrophic turbine failure if unaddressed. Its high temperature tolerance allows direct mounting near turbine casings, providing accurate data where it matters most.

Within the oil and gas industry, the 330850 – 50 – 00 monitors centrifugal compressors used in pipeline operations. It tracks shaft eccentricity during startup and shutdown, ensuring safe operation during these critical phases when machinery is most vulnerable to damage. Its corrosion – resistant design makes it suitable for offshore platforms, where salt spray and humidity would degrade less robust sensors.

In manufacturing facilities, the 330850 – 50 – 00 protects large motors and pumps. For example, in steel mills, it monitors roll mill motors, detecting bearing wear that could lead to production halts. Its non – contact design ensures it doesn’t interfere with the motor’s operation, while its precision measurement allows for scheduled maintenance instead of emergency repairs.

BENTLY 330850-50-00

Related model recommendations

330850 – 10 – 00: A shorter 10mm probe version of the 330850 – 50 – 00, ideal for applications with limited space where the 50mm probe can’t fit, such as small – diameter pumps.

330850 – 50 – 10: Similar to the 330850 – 50 – 00 but with a 10m cable, suitable for machinery located far from monitoring systems, like remote pump stations.

3500/45 176449 – 04: A position monitor module that pairs with the 330850 – 50 – 00, processing its 0 – 10V output for integration into control systems and alarm triggering.

330180 – 90 – 00: A complementary 11mm probe transducer, offering a larger measurement range than the 330850 – 50 – 00 for applications requiring wider shaft movement monitoring.

3300 XL 8mm System Cable: A replacement or extension cable for the 330850 – 50 – 00, featuring the same shielding and temperature resistance for system expansion.

3500/20: A rack interface module that connects the 330850 – 50 – 00 to the 3500 series monitoring system, enabling centralized data collection.

172103 – 01: A signal conditioning module that enhances the 330850 – 50 – 00‘s output for noisy industrial environments, improving measurement stability.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the 330850 – 50 – 00, ensure the mounting surface is clean and flat. Use a 1/4 – 28 UNF tap to create threads if needed, ensuring proper probe alignment with the shaft (target gap: 1mm ±0.2mm). Tools required include a torque wrench (set to 6 – 8 Nm for probe mounting), BNC connector wrench, and feeler gauge for gap setting. Power off all connected monitoring systems during installation to prevent signal interference. Avoid bending the cable sharply (minimum bend radius: 50mm) to prevent internal conductor damage.

Maintenance suggestions: Inspect the 330850 – 50 – 00 quarterly for cable damage or loose connections. Clean the probe tip with isopropyl alcohol to remove oil or debris that could affect measurement. Calibrate annually using a BENTLY NEVADA calibration kit to verify sensitivity and linearity. If signal drift occurs, check for target material changes (must be ferrous) or excessive shaft runout. Replace damaged cables with genuine BENTLY NEVADA replacements to maintain performance—generic cables may not provide adequate shielding. Keep a log of gap settings and calibration results to track long – term performance trends.

Service and guarantee commitment

The 330850 – 50 – 00 comes with a 24 – month warranty covering manufacturing defects. During this period, we provide free replacement for faulty units and technical support for installation issues. Our global service network offers on – site calibration and troubleshooting for critical applications. We supply detailed installation manuals, calibration procedures, and application notes to ensure optimal performance. For extended protection, optional 3 – year warranty plans are available, including priority technical support. Our commitment to quality ensures the 330850 – 50 – 00 delivers reliable measurement data throughout its 10 + year service life, backed by BENTLY NEVADA’s decades of expertise in machinery protection.