Bently Nevada 330500-01-01 Velomitor Sensor

Bently Nevada 330500-01-01 Velomitor Piezo-velocity Sensor

Product Introduction

The Bently Nevada 330500-01-01 Velomitor Piezo-velocity Sensor offers precise vibration measurement for critical rotating machinery. This sensor converts mechanical velocity directly into an electrical signal. Therefore, it becomes an ideal choice for continuous monitoring applications. Its hermetically-sealed 316L stainless steel housing ensures durability in harsh industrial environments. Additionally, the Bently Nevada 330500 provides a stable output bias voltage of -12 VDC. This feature guarantees consistent performance over its wide temperature range. Meanwhile, this model is specifically designed for simplicity. For instance, it requires no external signal conditioning for many installations.

Technical Specifications

The Bently Nevada 330500-01-01 exhibits a standard sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5% at 100 Hz. Its frequency response spans from 4.5 Hz to 5 kHz (270 cpm to 300 kcpm) within ±3.0 dB. Furthermore, it performs from 6.0 Hz to 2.5 kHz (360 cpm to 150 kcpm) within ±0.9 dB. The sensor handles a peak velocity range of 1270 mm/s (50 in/s). Moreover, its transverse sensitivity remains less than 5%. Besides that, amplitude linearity is within ±2% up to 152 mm/s (6 in/s) peak. The mounted resonant frequency exceeds 12 kHz. Consequently, this ensures a wide usable bandwidth for various machinery types.

For electrical characteristics, the Bently Nevada 330500 features an output bias voltage of -12 ±3.0 VDC referenced to Pin A. Its dynamic output impedance measures less than 2400 Ω. In addition, the broadband noise floor (4.5 Hz to 5 kHz) is nominally 0.004 mm/s (160 μin/s) rms. The case is isolated from ground. Therefore, it effectively prevents ground loop issues. Furthermore, the maximum recommended cable length is 305 metres (1,000 feet) using part number 02173006. Notably, this length causes no signal degradation.

Mechanical and Environmental Limits

This sensor operates reliably across a wide temperature range from -55°C to 121°C (-67°F to 250°F). It withstands shock survivability up to 5,000 g peak. Additionally, it tolerates 100% relative humidity in non-submerged conditions. The case is hermetically-sealed, which provides excellent protection. Meanwhile, the base strain sensitivity is 0.005 in/s/mstrain. Also, magnetic field susceptibility is less than 51 min/s/gauss. Physically, the Bently Nevada 330500-01-01 weighs 142 grams (5.0 oz). Its diameter measures 25.3 mm (0.995 in), and its height is 63.2 mm (2.49 in). Its case material is 316L stainless steel. Furthermore, it uses a 2-pin Mil-C-5015 hermetically-sealed connector.

Installation and Mounting Guidelines

Proper installation ensures accurate readings from the Bently Nevada 330500. The recommended mounting torque is 32-46 kg cm (24-40 in-lb) max. Polarity is clearly defined: when the sensor case moves toward the connector, Pin A becomes positive with respect to Pin B. For optimal performance, the recommended cable length is 208 ft (63m). This recommendation assumes a maximum vibration of 50g at 10 kHz. Additionally, it considers a cable capacitance of 200 pf/m. Meanwhile, always install per drawing 167537 for hazardous area compliance.

Compliance and Certifications

The Bently Nevada 330500-01-01 meets several key standards. It complies with FCC Part 15 rules. For EMC, it follows Directive 2014/30/EU. Regarding RoHS, it adheres to Directive 2011/65/EU. Maritime approvals include DNV rules for ships, high-speed craft, and offshore standards. Moreover, hazardous area approvals are extensive. These include Ex ia IIC T4 and AEx ia IIC T4 for Class I, Division 1. They also cover Groups A, B, C, D, as well as Class II and III. Additionally, it carries Ex nL IIC T4 and AEx nA IIC T4 for Class I, Div 2. The T4 rating applies from -40°C to 100°C.

Packaging List

• Bently Nevada 330500-01-01 Velomitor Piezo-velocity Sensor (1 unit)

• Installation instruction sheet (1 copy)

Shipping Information

All orders ship via FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

1. What is the primary application for the Bently Nevada 330500-01-01?
This sensor is mainly used for vibration monitoring on turbines, compressors, pumps, and fans in industrial settings.

2. Can I extend the cable beyond 305 metres?
Extending beyond 305 metres may degrade the signal. For longer runs, consider using a signal conditioner.

3. Is the Bently Nevada 330500 suitable for outdoor use?
Yes, its 316L stainless steel case and wide temperature range make it suitable for outdoor and harsh environments.

4. How do I verify the sensor's output bias voltage?
Measure the DC voltage between Pin A and Pin B; it should read -12 ±3.0 VDC at room temperature.

5. What maintenance does the Bently Nevada 330500-01-01 require?
Routine inspection of the cable and connector integrity is recommended. No internal calibration is needed.