Excellent PLC
Description
The Bently Nevada 330500-01-02 Velomitor is a robust piezo-velocity sensor engineered to monitor absolute vibration in bearing housings and machine casings. It integrates a piezoelectric accelerometer and embedded solid-state electronics to ensure high reliability without moving parts. It is designed for versatile mounting and delivers accurate velocity measurements crucial for machine health diagnostics.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Response | 4.5 Hz – 5 kHz ±3.0 dB; 6.0 Hz – 2.5 kHz ±0.9 dB |
| Velocity Range | 1270 mm/s (50 in/s) peak |
| Output Bias Voltage | -12 ±3.0 VDC |
| Transverse Sensitivity | <5% |
| Mounted Resonant Frequency | >12 kHz |
| Noise Floor (4.5 Hz to 5 kHz) | 0.004 mm/s (160 μin/s) rms nominal |
| Grounding | Case isolated |
| Operating Temperature | -55°C to +121°C |
| Shock Survivability | 5,000 g peak |
| Relative Humidity | 100%, non-submerged |
| Diameter (Sensor Head) | 25.3 mm (0.995 in) |
| Height | 63.2 mm (2.49 in) |
| Weight | 0.142 kg (142 g) |
| Case Material | 316L Stainless Steel |
| Connector | 2-pin Mil-C-5015 hermetically sealed |
| Mounting Torque | 32–46 kg-cm (24–40 in-lb) |
| Max Cable Length | 305 m (1000 ft) |
Applications
-
Vibration monitoring of bearing housings and motor casings
-
Machinery protection systems
-
Condition monitoring for turbines, compressors, and pumps
-
Industrial equipment where velocity measurements are critical
-
Harsh environments requiring sealed, rugged sensors
Advantages
-
Solid-state design with no moving parts ensures durability
-
Wide operating temperature and high shock resistance
-
Compact, stainless-steel construction for reliable installation
-
Long cable support without signal degradation
-
Suitable for hazardous areas with multiple certifications (CSA, ATEX, IECEx)
Frequently Asked Questions (FAQ)
Q1: What type of measurement does the 330500 provide?
A1: It provides absolute vibration velocity measurements.
Q2: Can it be mounted in any orientation?
A2: Yes, the sensor can be mounted vertically, horizontally, or at any angle.
Q3: Is the sensor suitable for high-temperature environments?
A3: Yes, it operates reliably from -55°C to +121°C.
Q4: What is the maximum cable length allowed without signal loss?
A4: Up to 305 meters (1000 feet) using the specified cable.
Q5: What type of connector is used on the sensor?
A5: A 2-pin hermetically sealed Mil-C-5015 connector.
Q6: Does it require external signal conditioning?
A6: No, it has embedded electronics and does not require external conditioning.
Q7: What material is the sensor casing made from?
A7: It is made from 316L stainless steel.
Q8: Is it certified for hazardous locations?
A8: Yes, it holds CSA, ATEX, and IECEx approvals for hazardous areas.
Q9: What is its typical weight?
A9: Approximately 0.142 kg (142 grams).
Q10: Can it be used for displacement measurements?
A10: It is not recommended as electrical noise can distort displacement data.
Related Models
| Model Number | Description | Frequency Range | Weight |
|---|---|---|---|
| 330525 | Velomitor Sensor with 1/4-18 NPT mounting | 4.5 Hz – 5 kHz | 0.142 kg |
| 330400 | Standard Velomitor Sensor | 4.5 Hz – 5 kHz | 0.145 kg |
| 330450 | Low-Frequency Velomitor Sensor | 2 Hz – 1 kHz | 0.150 kg |
| 330900 | High-Temperature Velomitor Sensor | 4.5 Hz – 5 kHz | 0.160 kg |
| 107770 | Velomitor with Housing (CENELEC approved) | 4.5 Hz – 5 kHz | 0.400 kg |
| 21128 | Velocity Transducer Housing Assembly | Enclosure only | ~0.500 kg |
Popular Bently Nevada Models
| Model Number | Description | Application Area | Weight |
|---|---|---|---|
| 3500/42M | Proximitor Seismic Monitor | Vibration Monitoring | ~0.6 kg |
| 3500/22M | Transient Data Interface Module | System Communication | ~0.5 kg |
| 3500/15 | Power Supply Module | Power Distribution | ~0.4 kg |
| 3300 XL 8mm Probe | Proximity Probe | Shaft Vibration Monitoring | ~0.12 kg |
| 330104-00-06 | Proximity Probe Assembly | General Vibration | ~0.11 kg |
| 330180-91-CN | 3300 XL Proximitor Sensor | Machinery Protection | ~0.13 kg |
