Product Description

The Bently Nevada 330500-02-00 is a robust and reliable piezoelectric velocity transducer designed for measuring the absolute vibration velocity of machine bearing housings, casings, or structures. It features a solid-state integrated electronic design, which internally converts the output signal from a piezoelectric accelerometer directly into a velocity signal, eliminating the need for an external integrator.

A key advantage of this sensor is its lack of moving parts, ensuring exceptional reliability and long-term stability, free from mechanical wear and aging. It can be mounted vertically, horizontally, or at any angle, providing significant flexibility for complex machinery layouts. The 330500-02-00 transducer is typically used in conjunction with Bently Nevada monitoring systems (such as the 3500 Series or 1900 Series) to provide continuous vibration monitoring and protection for rotating machinery.

Product Parameters

Here are the key technical specifications for the 330500-02-00 transducer:

• Measurement Type: Absolute Vibration Velocity
• Sensor Type: Integrating Piezo-accelerometer
• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency Range:
• 4.5 Hz to 5 kHz (±3.0 dB)
• Alternatively, 6.0 Hz to 2.5 kHz (±0.9 dB)
• Operating Temperature Range: Typically -54°C to +121°C (-65°F to +250°F)
• Dynamic Range: Approximately 80 dB
• Connector: 2-pin Mil-C-5015 sealed connector, 316L stainless steel housing
• Housing Material: 316L Stainless Steel
• Mounting Thread: M8 x 1 (for the -02 option)
• Maximum Mounting Torque: 46 kg-cm (40 in-lb)
• Dimensions:
• Height: Approx. 63.2 mm (2.49 in)
• Diameter: Approx. 25.3 mm (0.995 in)
• Weight: Approximately 0.142 kg (0.31 lb)
• Maximum Cable Length: Typically up to 305 m (1,000 ft)
• Hazardous Area Approvals: Various hazardous area approvals may be available (depending on model suffix and regional requirements; -00 typically indicates no specific agency approval required).

Model Suffix Breakdown (e.g., 330500-02-00):

• 330500: Base model for the Velomitor Piezoelectric Velocity Transducer.
• -02: Indicates the mounting thread adapter option is M8 x 1.
• -00: Indicates the agency approval option is "Not required" for standard models, meaning no specific hazardous area or regional certifications are included.

Product Application Cases

The Bently Nevada 330500-02-00 transducer is widely used for condition monitoring and fault diagnostics across various industrial rotating machinery, thanks to its ability to measure absolute vibration velocity. Common application cases include:

• Turbines and Generators: Monitoring bearing housing and casing vibrations to detect imbalances, misalignments, and bearing wear, ensuring safe and stable unit operation and preventing unplanned downtime.
• Centrifugal and Reciprocating Compressors: Monitoring the vibration levels of compressor casings is crucial for preventing surge, valve failures, and piston rod wear.
• Pumps: Extensively used for vibration monitoring on various industrial pumps (e.g., boiler feed pumps, circulating water pumps, oil pumps) to identify issues like cavitation, bearing damage, and seal failures.
• Large Fans and Blowers: Monitoring the vibration of fan impellers and bearings helps detect imbalances and blade damage, ensuring efficient and safe fan operation.
• Motors and Gearboxes: Used to monitor vibration in motor bearings and stators, as well as gear mesh and bearing conditions within gearboxes, preventing fault propagation.
• Cooling Tower Fans: Monitoring vibrations in the fan drive system and blades helps ensure effective cooling and extended equipment lifespan.
• Heavy Industrial Equipment (e.g., Paper Machines, Cement Mills): In these continuously operating, heavy-duty machines, the 330500-02-00 is used to monitor critical bearing points and structural vibrations for proactive maintenance.

These applications benefit significantly from the high-precision, reliable vibration velocity data provided by the 330500-02-00 transducer, supporting condition-based maintenance strategies, reducing unplanned downtime, and optimizing equipment operational efficiency.

Do you have any further questions about the 330500-02-00 sensor's installation, calibration, or integration with other Bently Nevada systems?

The Bentley 330500-02-00 speed sensor measures the vibration of mechanical casings. It is used in machinery and equipment where vibration cannot be measured by eddy current sensors. Protecting mechanical equipment by measuring the vibration velocity of the shell, typical applications include pumps, motors, gearboxes, compressors and fans. It is widely used in power plants, oil refineries, chemical plants, steel mills, water pump factories, fan factories and other enterprises and institutions. Because it adopts body circuits and has no moving parts, it will not cause wear and degradation, and can be installed straight, horizontally or at any Angle.

The Bentley 330500-02-00 sensor is a piezoelectric velocity sensor, also known as a shell vibration sensor. Its sensing element is a piezoelectric ceramic shear mode device and electronic component. When the vibration of the machine is sensed, a force is applied to the piezoelectric ceramic, thereby generating a signal proportional to this force. The sensor internally amplifies and integrates this signal to generate a low-noise output signal proportional to the speed.

Sensitivity: 3.94mV/mm/s

Frequency response: 4.5Hz to 5kHz(270cpm to 300kcpm

The maximum cable length is 305 meters.

The hazardous area city has been approved and certified as CN

Operating temperature range: -55°C to +121°C.

Relative humidity 100%, not immersed in water; The shell is sealed with a seal.

Typical value: 142g

The diameter is 25.3mm

Height: 63.2mm

The shell material is 316L stainless steel

Model meaning: Bentley 330500-02-00 piezoelectric speed sensor represents meaning 330500-AXX-BXX

A; Option for installing threaded joints

01 1/2-20UNF

02 M8xl

B: Approval agency option

00 Not required

01CSA/Us/c

04 Multiple approvals (CSA, ATEX and Brazil)

CN China Certification

Connect the cables 9571-AXx and 84661-AXx

A: Cable length option, in feet. When placing an order, it increases by 10 feet (305mm).

Example :09=9 feet 12=12 feet

The 9571 two-core shielded twisted-pair cable 22AWG has a 2-socket waterproof concave connector at one end and a terminal connection piece at the other end. Minimum length :2 feet (0.6 meters)

84661 two-core shielded armored twisted-pair cable, with a double-socket waterproof concave joint at one end and a terminal connection piece at the other end.

Bentley 330500 common models: 330500-01-00, 330500-01-CN, 330500-02-00, 330500-02-CN. The Bentley 330500-02-00 piezoelectric velocity sensor is connected to the monitor ends A and B through the signal cable A and B, and can be used in the 3500/42 eddy current/seismic monitor, or in the vibration monitor 233/20 and 1900/65A Bentley vibration transmitter.