330505-01-02-07 | Bently Nevada Low Frequency Velocity Sensor - Petro Auto Tech

Product Overview

The **330505-01-02-07** is a genuine Bently Nevada Low Frequency Velocity Sensor, designed for precise vibration monitoring in industrial machinery. This sensor delivers reliable performance for critical asset protection, featuring a 20 mV/mm/s sensitivity and a frequency response from 0.5 to 1000 Hz. Ideal for applications requiring accurate velocity measurements, this sensor ensures operational safety and efficiency.

Technical Specifications Analysis

The sensor offers a sensitivity of 20 mV/mm/s (508 mV/in/s) ±10%, ensuring accurate conversion of mechanical vibration to electrical signals. Its frequency response spans 0.5—1000 Hz (30—60,000 cpm) ±3.0 dB, with a tighter tolerance of ±0.9 dB in the 1—200 Hz (60—12,000 cpm) range. The velocity range reaches 102 mm/s (4 in/s) peak, with amplitude linearity within ±3% at full scale. The output bias voltage is -12 ±1 VDC, and it supports a maximum cable length of 305 meters (1000 feet) without signal degradation when paired with a 3500/46M monitor. The sensor operates in temperatures from -40°C to +100°C (-40°F to +212°F) and withstands shock up to 981 m/s² (100g) peak. It is hermetically sealed for 100% relative humidity resistance and weighs under 375 grams (13.2 oz). The case and connector are made of 300 series stainless steel, with a 2-pin Mil-C-5015 receptacle.

Application Scenarios & Usage Methods

This sensor excels in monitoring low-speed rotating machinery such as cooling tower fans, hydro turbines, and large pumps. Install it directly on bearing housings using the 3/8-24 UNF-2B internal mounting thread and a 3/8-16 UNC mounting adapter. Connect the sensor to a compatible monitoring system like the 3500/46M for continuous vibration analysis. For optimal performance, ensure the mounting angle is 0° ±10° and apply a maximum torque of 46 kg cm (40 in-lb).

Installation Guide & Packing List

Mount the sensor securely on a clean, flat surface. Use the provided 3/8-16 UNC mounting adapter and tighten to the specified torque. Route the cable away from high-noise sources. The packing includes one Bently Nevada 330505-01-02-07 Low Frequency Velocity Sensor with mounting adapter and installation manual.

Purchasing Advice

When selecting a velocity sensor, verify compatibility with your monitoring system and environmental conditions. The 330505-01-02-07 offers a wide frequency range and robust construction, making it suitable for harsh industrial environments. Purchase from Petro Auto Tech for genuine, factory-sealed units backed by a 12-month warranty.

Repair & Maintenance Tips

Regularly inspect the sensor for physical damage or corrosion. Clean the connector with a dry cloth and ensure the hermetic seal remains intact. Store in a dry, temperature-controlled environment between -40°C and +100°C. Avoid exceeding the maximum shock rating of 981 m/s² during handling.

Frequently Asked Questions (FAQs)

Q: What is the sensitivity of the 330505-01-02-07?

A: The sensitivity is 20 mV/mm/s (508 mV/in/s) ±10%.

Q: What is the maximum cable length for this sensor?

A: The maximum cable length is 305 meters (1000 feet) without signal degradation when used with a 3500/46M monitor.

Q: What is the operating temperature range?

A: The operating and storage temperature range is -40°C to +100°C (-40°F to +212°F).

Q: What mounting thread does the sensor use?

A: The internal mounting thread is 3/8-24 UNF-2B, and the mounting adapter option is 3/8-16 UNC.