Bently Nevada 33050-00-00

Description

Basic Identification Parameters

• Brand: Bently Nevada
• Part Number: 33050-00-00
• Product Type: Integrating Piezo Velomitor Absolute Vibration Sensor
• Origin: United States
• Product Weight: 280 g
• Factory Warranty Period: 12 months original factory warranty
• Overall Dimensions: M10×1 external thread mounting, cylindrical stainless steel housing
• Mounting Mode: Surface screw mounting / stud mounting on machine casing / bearing housing
• Protection Grade: IP67 Hermetically Sealed
• Certifications: CE, UL, CSA, ATEX/IECEx Hazardous Area Approval

Electrical Specifications

• Operating Power Supply: 12–30 V DC constant current power supply
• Output Signal: Differential analog voltage output
• Output Bias Voltage: -12 ±3.0 V DC (referenced to signal ground)
• Dynamic Output Impedance: ≤2400 Ω
• Nominal Sensitivity: 3.94 mV/(mm/s) (100 mV/in/s) ±5% Full Scale
• Amplitude Linearity: ±2% within 0–152 mm/s peak velocity range
• Transverse Sensitivity: ≤5% of axial sensitivity value
• Maximum Allowable Velocity Range: 0–1270 mm/s peak
• Response Time: ≤1 ms
• Maximum Extension Cable Length: 305 m (1000 ft), no signal attenuation
• Broadband Noise Floor: 0.004 mm/s RMS (4.5 Hz–5 kHz frequency band)
• Case Grounding: Isolated housing design, anti-ground loop interference

Measurement & Frequency Specifications

• Primary Frequency Response Range: 4.5 Hz – 5000 Hz (270–300000 cpm), ±3.0 dB tolerance
• High-Stability Frequency Band: 6.0 Hz – 2500 Hz (360–150000 cpm), ±0.9 dB tolerance
• Mounted Resonant Frequency: ≥12 kHz
• Temperature Sensitivity Drift: -14% to +7.5% full scale within full operating temperature range

Environmental Specifications

• Operating Temperature Range: -40 ℃ to +125 ℃
• Storage Temperature Range: -51 ℃ to +150 ℃
• Operating Humidity: 0%–100% RH, non-submerged condensing environment
• Shock Resistance: 100 g peak shock survivability
• Electromagnetic Compatibility: Fully meets industrial EMC anti-interference standards

Core Functional Features

1. Integrated Piezoelectric Integration Architecture

   Built-in high-precision piezoelectric crystal and active integration circuit, directly output vibration velocity signal without external integral module, simplify system configuration and reduce measurement error.

2. Absolute Vibration Measurement Principle

   Measures casing vibration relative to inertial free space, completely different from proximity shaft relative vibration measurement; perfectly matches rolling bearing machinery vibration monitoring requirements.

3. Solid-State Non-Wear Design

   No mechanical moving parts, no friction loss, no performance degradation during long-term operation, ultra-long service life.

4. Isolated Housing & Anti-Ground Loop Design

   Independent insulated housing structure, effectively suppress ground loop interference and common-mode noise, ensure stable signal output under complex industrial grounding conditions.

5. Ultra-Long Distance Signal Transmission

   Supports maximum 305 m field cable transmission without signal distortion, adapts to large-scale plant distributed layout.

6. Hermetic Sealed Stainless Steel Structure

   316L stainless steel housing, dustproof, waterproof, corrosion-resistant, suitable for harsh chemical and high-temperature industrial environments.

7. Fast Dynamic Response Performance

   ≤1 ms response speed, instantly capture transient vibration impact and fault mutation signals.

8. Standardized Thread Interface

   M10×1 universal mounting thread, fully compatible with original Bently Nevada mounting brackets and accessories.

Applicable Application Scenarios

• Thermal power plants: Steam turbines, gas turbines, generator bearing housings
• Petroleum & petrochemical industry: Centrifugal compressors, process pumps, fans, offshore platform machinery
• Chemical industry: Large rolling bearing compressors, reciprocating machinery
• Metallurgy, cement & mining industry: Rotary kilns, grinding mills, large gearboxes, high-speed fans
• Water conservancy & wastewater treatment: Large circulating pumps, vertical turbine pumps
• Marine power equipment: Ship propulsion machinery and auxiliary rotating equipment
• OEM machinery manufacturing and industrial predictive maintenance condition monitoring systems
• Hazardous area industrial sites with ATEX/IECEx certification requirements

System Compatibility

• Fully compatible with Bently Nevada 3300 Series, 3500 Series Machinery Protection & Monitoring Systems
• Directly matches 3500/46M velocity monitor modules
• Seamlessly connects to PLC, DCS, SCADA and upper computer diagnostic platforms
• Matches original Bently Nevada 84661 series Velomitor interconnect cables
• Compatible with all standard industrial velocity vibration monitoring acquisition equipment