Excellent PLC
Product Overview
The Bently Nevada 330500-03-04 Velomitor Piezo-velocity Sensor is a rugged, solid-state vibration sensor designed to measure absolute casing or structural vibration in industrial machinery. Utilizing piezoelectric acceleration sensing with integrated electronics, it provides velocity output without moving parts, ensuring long-term reliability in demanding environments.
Product Features
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Solid-state construction with no moving parts
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Outputs velocity signal directly (mV/in/s)
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Wide frequency range (4.5 Hz to 5 kHz)
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Robust stainless-steel housing
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Hermetically sealed for use in harsh conditions
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Certified for hazardous locations
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensitivity | 100 mV/in/s (3.94 mV/mm/s) ±5% |
| Frequency Response | 4.5 Hz to 5 kHz (±3 dB); 6 Hz to 2.5 kHz (±0.9 dB) |
| Velocity Range | 1270 mm/s (50 in/s) peak |
| Output Bias Voltage | -12 VDC ±3.0 VDC |
| Operating Temperature | -55°C to +121°C |
| Weight | 0.142 kg (5.0 oz) |
| Sensor Head Diameter | 25.3 mm (0.995 in) |
| Height | 63.2 mm (2.49 in) |
| Case Material | 316L Stainless Steel |
| Connector Type | 2-pin MIL-C-5015, hermetically sealed |
| Mounting Torque | 32–46 kg·cm (24–40 in·lb) |
| Shock Survivability | 5,000 g peak |
| Cable Length (Max) | 305 m (1000 ft) |
| Environmental Protection | Hermetically sealed, 100% humidity, non-submerged |
| Certifications | CSA, ATEX, IECEx, RoHS, FCC, EMC |
Typical Applications
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Monitoring vibration on bearing housings and casings
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Machine protection in turbines, compressors, and motors
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Machinery condition monitoring systems
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Installations requiring long cable runs or high durability
Product Advantages
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Long service life due to non-mechanical sensing design
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High accuracy in harsh environments
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Flexible mounting in any orientation
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Minimal signal degradation over long distances
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Complies with global hazardous location standards
Frequently Asked Questions (FAQ)
Q1: What is the output signal type of the 330500-03-04 sensor?
A1: It provides a velocity output in mV/in/s (100 mV/in/s).
Q2: Can the sensor be mounted vertically or horizontally?
A2: Yes, it can be mounted in any orientation without affecting performance.
Q3: Is this sensor suitable for use in hazardous areas?
A3: Yes, it is certified for use in ATEX, CSA, and IECEx Zone 0/1/2 hazardous areas.
Q4: What is the maximum cable length supported?
A4: It supports up to 305 meters (1000 feet) without signal degradation.
Q5: What materials are used for the housing?
A5: The sensor uses 316L stainless steel for corrosion resistance.
Q6: Can I use this sensor for both low and high-frequency monitoring?
A6: Yes, it covers a frequency range from 4.5 Hz to 5 kHz.
Q7: What is the typical weight of the sensor?
A7: Approximately 0.142 kg (5.0 oz).
Q8: What happens if the sensor is used outside its operating range?
A8: Operation beyond specified limits can cause false readings or system errors.
Q9: What type of connector does it use?
A9: A 2-pin MIL-C-5015 hermetically sealed connector.
Q10: Does it require a special mounting adapter?
A10: Multiple thread adapters are available depending on your installation needs.
Related Models (Same Series)
| Model Number | Sensitivity | Frequency Range | Output Type | Weight |
|---|---|---|---|---|
| 330500-03-04 | 100 mV/in/s | 4.5 Hz – 5 kHz | Velocity | 0.142 kg |
| 330525-02-12 | 100 mV/in/s | 4.5 Hz – 5 kHz | Velocity | 0.145 kg |
| 330505-02-12 | 100 mV/in/s | 4.5 Hz – 5 kHz | Velocity | 0.150 kg |
| 330400-02-12 | 500 mV/in/s | 2 Hz – 10 kHz | Velocity | 0.138 kg |
| 330450-02-12 | 100 mV/in/s | 10 Hz – 1 kHz | Velocity | 0.146 kg |
| 330900-01-00 | 200 mV/in/s | 4 Hz – 5 kHz | Velocity | 0.140 kg |
Popular Bently Nevada Models
| Model Number | Description | Output Type | Frequency Range | Weight |
|---|---|---|---|---|
| 3500/42M-01-00 | Proximitor Seismic Monitor | Vibration Monitor | Up to 10 kHz | 0.25 kg |
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| 3500/15 | Power Supply Module | Power | N/A | 0.6 kg |
