Excellent PLC
| Company Information | ||||||||
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Bently Nevada 330750-40 High Temperature Velomitor Sensor is an advanced vibration monitoring sensor designed to operate in extreme temperature environments, providing reliable velocity measurements for critical rotating machinery. As part of the Velomitor Sensor series, it is engineered to deliver accurate, real-time data for machinery protection and condition monitoring, even under harsh industrial conditions.
The sensor utilizes a piezoelectric sensing element to convert mechanical vibration into a proportional electrical signal, specifically measuring shaft vibration velocity. Its high-temperature tolerance allows direct installation on hot surfaces, such as turbine casings or high-temperature compressors, without compromising measurement accuracy. When used with compatible 3300 XL Proximitor Sensors or vibration monitoring systems, it ensures precise monitoring critical for predictive maintenance and safety assurance.
Built with stainless steel housing and high-temperature shielded cables, the 330750-40 offers robust EMI/RFI resistance and mechanical durability. Designed for industrial compliance, it meets API 670 standards, making it suitable for power generation, petrochemical, and other high-demand industrial environments.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | Bently Nevada 330750-40 |
| Series | High Temperature Velomitor Sensor |
| Measurement Type | Velocity (vibration) |
| Measurement Principle | Piezoelectric |
| Frequency Response | 2 Hz to 10 kHz (±3 dB) |
| Sensitivity | 100 mV/mm/s nominal |
| Operating Temperature | -40°C to +250°C |
| Storage Temperature | -55°C to +275°C |
| Temperature Coefficient | <0.2% per °C |
| Housing Material | Stainless steel, corrosion-resistant |
| Mounting Thread | M8 × 1.25 or M10 × 1.5 (depending on configuration) |
| Mounting Type | Stud mount |
| Cable Type | High-temperature shielded coaxial cable |
| Total Length | 4 meters |
| Weight | 0.794 kg |
| Electrical Isolation | Signal isolated from housing |
| Compliance Standards | API 670, CE, CSA, ATEX (system dependent) |
Product Applications
The 330750-40 High Temperature Velomitor Sensor is widely applied in monitoring critical rotating machinery where direct shaft vibration velocity measurement is required at elevated temperatures. Its non-contact measurement capability ensures accurate readings without mechanical wear, making it ideal for:
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Steam and Gas Turbines: Captures high-temperature rotor vibration for condition monitoring and protection.
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Compressors: Detects imbalance, misalignment, and bearing faults in high-temperature conditions.
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Pumps: Monitors vibration to prevent mechanical failures in hot process environments.
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Industrial Motors and Generators: Provides velocity data for high-temperature rotating machinery.
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High-Temperature Gearboxes: Measures vibration for predictive maintenance in harsh industrial environments.
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Process Equipment: Monitors turbines, pumps, and blowers in petrochemical and power plants.
The sensor is essential for power generation, petrochemical, and heavy industrial applications, providing reliable performance in environments exceeding standard temperature limits.
Product Advantages
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High-Temperature Operation: Reliable performance up to +250°C for direct machinery mounting.
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Precise Velocity Measurement: Accurate monitoring of shaft vibration for predictive maintenance.
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Robust Construction: Stainless steel housing ensures durability and corrosion resistance.
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EMI/RFI Immunity: Shielded coaxial cable ensures clean signal in electrically noisy environments.
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API 670 Compliant: Meets global standards for machinery protection and monitoring.
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Wide Frequency Range: Monitors both low-frequency and high-frequency vibrations.
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Non-Contact Compatibility: Integrates with other proximity and velocity sensors.
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Flexible Mounting Options: Stud mount design for easy installation on high-temperature equipment.
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Stable Signal Output: Ensures consistent monitoring under thermal and mechanical stress.
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System Integration: Compatible with 3300 XL Proximitor Sensors and vibration monitoring modules.
FAQ
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What type of measurement does the 330750-40 perform?
It measures shaft vibration velocity using a piezoelectric sensor element, converting mechanical vibration into electrical signals. -
Can the sensor operate in high-temperature conditions?
Yes, it is designed to operate reliably at temperatures up to +250°C, suitable for high-temperature turbines and compressors. -
What is the frequency response of the sensor?
The sensor supports 2 Hz to 10 kHz, capturing low- and high-frequency vibration components. -
Which mounting method ensures optimal performance?
The sensor should be stud-mounted directly onto the machinery surface for precise velocity measurement. -
Is the sensor resistant to EMI/RFI interference?
Yes, the shielded coaxial high-temperature cable protects the signal in electrically noisy industrial environments. -
Is the 330750-40 compatible with 3300 XL Proximitor Systems?
Yes, it can be integrated with 3300 XL Proximitor Sensors and compatible vibration monitoring modules. -
What types of machinery is this sensor suitable for?
It is ideal for steam turbines, compressors, pumps, high-temperature motors, and gearboxes. -
What is the nominal sensitivity of the sensor?
The sensor provides 100 mV/mm/s nominal output, calibrated for high-temperature velocity measurement. -
Does the sensor comply with industrial standards?
Yes, it meets API 670, CE, CSA, and ATEX standards depending on system integration. -
Can it monitor both low-speed and high-speed rotating machinery?
Yes, its wide frequency response makes it suitable for a broad range of equipment speeds.
Related Models (Same Series)
| Model | Description |
|---|---|
| 330750-20-CN | High-temperature Velomitor Sensor for 2-meter cable applications |
| 330750-10-CN | Standard-temperature Velomitor Sensor for moderate-temperature machinery |
| 330750-15-CN | High-temperature sensor with extended frequency response |
| 330750-25-CN | Compact high-temperature sensor for limited-space installations |
| 330750-30-CN | Optimized for high-speed turbine monitoring |
| 330750-50-CN | Heavy-duty high-temperature sensor for industrial compressors |
Popular Bently Nevada Models
| Model | Description |
|---|---|
| 330750-20 | Standard Velomitor Sensor for high-temperature monitoring |
| 3500/42M | Dual-channel vibration and position monitoring module |
| 3500/22M | Transient Data Interface Module for condition monitoring |
| 3500/94 | Display Module for real-time vibration visualization |
| 330780-51-00 | 3300 XL Proximitor Sensor compatible with 11 mm probes |
| 330130-040-00 | 8 mm proximity probe for general industrial applications |
