Bently Nevada 330500-00-00 Velomitor Piezo-velocity Sensor

Description

The 330500-00-00 Velomitor Piezo-velocity Sensor is a specialized piezoelectric accelerometer designed for measuring absolute casing, bearing housing, and structural vibration. This configuration includes Option 00 for mounting (no adapter included) and Option 00 for agency approval (not required), providing a versatile solution for standard machinery monitoring applications. This sensor integrates solid-state electronics, eliminating moving parts to prevent mechanical wear and degradation. It is suitable for horizontal, vertical, and angular mounting orientations. When used in conjunction with Bently Nevada monitoring systems, it provides precise velocity measurements for identifying common machinery malfunctions such as unbalance and misalignment.

Features

• Integrated solid-state electronics design with no moving parts
• Standard sensitivity of 3.94 mV/mm/s (100 mV/in/s) +/- 5 percent
• Broadband frequency response from 4.5 Hz to 5 kHz (+/- 3.0 dB)
• Hermetically-sealed 316L stainless steel housing for environmental protection
• Case-isolated grounding configuration
• Supports long cable runs up to 305 m (1,000 ft) without signal degradation
• Wide operating temperature range of -55 degC to 121 degC

Applications

The 330500 Velomitor sensor is used in critical rotating machinery protection for industries such as:

• Power Generation (Turbines, Generators)
• Oil and Gas (Pumps, Compressors)
• Petrochemical and Refining
• Water and Wastewater Treatment
• General Industrial Rotating Equipment

Ordering Information

Option	Code	Description
Orderable Part Number	330500-00-00	Velomitor Piezo-velocity Sensor
A - Mounting Thread Adaptor	00	No adapter
B - Agency Approval	00	Not required

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Part Number	330500-00-00
Sensitivity	3.94 mV/mm/s (100 mV/in/s) +/- 5 percent
Frequency Response	4.5 Hz to 5 kHz (+/- 3.0 dB)
Velocity Range	1270 mm/s (50 in/s) peak
Amplitude Linearity	+/- 2 percent to 152 mm/s (6 in/s) peak
Mounted Resonant Frequency	Greater than 12 kHz
Case Material	316L stainless steel
Connector	2-pin MIL-C-5015, hermetically-sealed
Operating Temperature	-55 degC to 121 degC (-67 degF to 250 degF)
Weight	0.142 kg (5.0 oz)
Dimensions	25.3 mm diameter x 63.2 mm height
Grounding	Case isolated

Installation Guidelines

• Ensure the sensor is installed directly on the bearing housing or machine casing to maintain accurate frequency response.
• Avoid mounting in locations where the transducer amplitude might be decreased or false signals are generated due to improper contact.
• Use appropriate torque (32-46 kg cm or 24-40 in-lb max) when mounting to prevent damage to the housing or threads.
• Cable runs should be secured and shielded to maintain signal integrity over long distances.

Compliance and Certifications

• EMC Directive 2014/30/EU
• RoHS Directive 2011/65/EU
• China RoHS (EFUP 15 years)
• ABS Marine Vessels compliant