Bently Nevada 330525-00 | Velomitor XA Piezo-velocity Sensor

Product Overview

The 330525-00 operates as a Velomitor XA piezo-velocity sensor within the Bently Nevada 3300 series. This unit measures absolute casing vibration on rotating machinery across a wide frequency band. Consequently, engineers gain dependable velocity data for cooling towers, fans, and balance-of-plant equipment.

Technical Specifications

Parameter	Value
Module Type	Piezo-velocity sensor
Sensitivity	3.94 mV/mm/s (100 mV/in/s)
Frequency Response	4.5 Hz to 1 kHz
Amplitude Range	0 to 100 mm/s peak
Power Supply	24 V DC nominal
Operating Temperature	-35°C to +120°C
Storage Temperature	-40°C to +125°C
Mounting Type	Stud or adhesive mount
Weight	Approximately 150 g
Dimensions	45 mm diameter × 55 mm height
Housing Material	Stainless steel
Connector Type	2-pin MIL-style connector
Output Signal	Velocity proportional voltage

Construction and Materials

The housing uses stainless steel, which resists corrosion and mechanical shock. Meanwhile, the internal piezo element converts motion into a stable velocity signal. The compact stud mount fits standard machine surfaces, so installation requires minimal downtime.

Interface and System Compatibility

This sensor pairs with Bently Nevada monitors and velocity transmitters. Additionally, its voltage output interfaces directly with data acquisition systems. Therefore, users integrate casing vibration data into existing monitoring platforms easily.

Installation Guidelines

Mount the sensor on a flat, clean surface to ensure solid mechanical coupling. Furthermore, route the cable away from high-voltage wiring to reduce interference. Correct grounding practice improves measurement stability, so follow plant standards carefully.