330780-91-05 3300 XL 11 mm Proximitor Sensor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330780-91-05
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330780-91-05 3300 XL 11 mm Proximitor Sensor is a sophisticated signal conditioning unit that serves as the heart of a high-performance eddy current measurement loop. Specifically engineered to interface with the 3300 XL 11 mm Proximitor Sensor system, this device converts the complex impedance changes detected by the probe into a clear, linear DC voltage. This output voltage is directly proportional to the physical gap between the sensor tip and the target conductive surface. By utilizing the 330780-91-05 3300 XL 11 mm Proximitor Sensor, operators can accurately capture both static position data, such as axial thrust, and dynamic vibration values, ensuring the total health of critical rotating assets is continuously monitored.

Primary deployments for the 3300 XL 11 mm Proximitor Sensor include vibration and position analysis on large-scale machines equipped with fluid-film bearings. Because the 11 mm system offers an extended linear range of 4.0 mm (160 mils), the 330780-91-05 3300 XL 11 mm Proximitor Sensor is the definitive choice for monitoring massive steam turbines and compressors where shaft movement may exceed the limits of standard 8 mm systems. Furthermore, this 3300 XL 11 mm Proximitor Sensor is frequently applied for Keyphasor reference and high-speed measurements, providing a precise timing pulse for phase-locked vibration diagnostics and overspeed protection logic.

Applications

1.Large-Scale Machinery Protection and API 670 Compliance

The primary application of the 330780-91-05 is the continuous monitoring of critical rotating assets such as utility-scale steam turbines, high-pressure compressors, and large induction motors. By converting probe impedance into a precise voltage signal, it provides the "vibration" and "thrust" data required for automated machinery shutdown systems. This model is designed to meet API 670 standards, ensuring that the data provided is reliable enough to be used for emergency machine trips, preventing catastrophic mechanical failure.

2.Extended Axial Thrust Monitoring

Because this Proximitor is designed for the 11 mm probe system, it is uniquely applied in scenarios requiring a wide linear range (typically up to 4.0 mm). This makes it the preferred choice for measuring the axial (thrust) position of massive rotors where thermal expansion or hydraulic forces can cause significant longitudinal movement. It allows for accurate tracking of the shaft position relative to the thrust bearings, even if the shaft moves beyond the sensing limits of standard 8 mm systems.

3.Hazardous Area Deployment in Global Energy Sectors

With CSA, ATEX, and IECEx approvals, the 330780-91-05 is purpose-built for installation in explosive atmospheres common in oil refineries, offshore platforms, and chemical processing plants. The sensor is typically housed in a local weather-tight enclosure near the machine. Its robust design and global certifications allow it to be specified for projects worldwide, ensuring the electronics remain safe and functional in the presence of flammable gases or vapors.

4.DIN Rail Integration and Cabinet Mounting

The -91-05 configuration features a DIN mount option, making it ideal for high-density installation within industrial instrument cabinets. It is designed to be snapped onto standard 35 mm DIN rails, allowing for organized wiring and easy maintenance. The support for field wiring between 0.2 to 1.5 mm² (16 to 24 AWG) allows it to integrate seamlessly into existing plant control systems, such as a Distributed Control System (DCS) or a Programmable Logic Controller (PLC).

Specifications

Competitive Advantage

1.Global Compliance with Triple Agency Approvals

A major competitive advantage of the 330780-91-05 is its comprehensive certification suite, including CSA, ATEX, and IECEx approvals. This triple certification allows the sensor to be deployed in hazardous environments globally without the need for region-specific hardware variants. For multinational engineering firms, this standardizes the spare parts inventory and ensures that the machinery protection system meets the most stringent international explosion-proof and intrinsic safety requirements.

2.Optimized for Long-Distance 9.0-Meter Systems

Unlike standard sensors that may lose signal integrity over long cable runs, this Proximitor is specifically calibrated for a 9.0-meter (29.5 feet) system length. This allows the electronic conditioning unit to be mounted in a centralized cabinet far from the heat and vibration of the machine train. The precision-tuned 68.9 pF/m extension cable capacitance and 45 Ω output resistance ensure that even at this distance, the frequency response and scale factor remain accurate, providing high-fidelity vibration data.

3.Superior Thermal and Electrical Stability

The 330780-91-05 excels in harsh electrical environments, boasting a supply sensitivity of less than 2 mV change per volt of input fluctuation. This immunity to power supply noise, combined with an operating temperature range that supports system components up to +175°C, guarantees that the sensor will not produce "false trips" or signal drift. This stability is a critical advantage for critical assets where downtime costs can reach millions of dollars per day.

4.Efficient High-Density DIN Rail Mounting

The integrated DIN mount option provides a significant installation advantage in modern control rooms and instrument shacks. By snapping directly onto standard 35 mm DIN rails, the 330780-91-05 reduces the footprint required for multi-channel systems. This modular design, paired with the support for flexible field wiring (0.2 to 1.5 mm²), allows for cleaner cable management and faster hardware replacement compared to older panel-mount or bulkhead configurations.