Bently Nevada 330750-80-05 High Temp Velomitor System | 400°C

Product Introduction

• Bently Nevada 330750-80-05 is a High Temperature Velomitor System.
• Designed for reliable vibration monitoring in extreme environments.
• Integral hardline cable and hermetically sealed case ensure durability.
• Approved for hazardous areas with multiple international certifications.
• Ideal for turbines, compressors, and rotating machinery.

Technical Specifications

• Brand: Bently Nevada
• Model: 330750-80-05
• Type: High Temperature Velomitor System
• Sensitivity: 5.7 mV/mm/s (145 mV/in/s) ±5%
• Frequency Response:
  • 15 to 2000 Hz (900 to 120,000 cpm) ±3.0 dB
  • 20 to 1000 Hz (1,200 to 60,000 cpm) ±0.9 dB
• Amplitude Range:
  • 635 mm/s (25 in/s) peak below 680 Hz
  • 2940 m/s² (300 g) peak above 680 Hz
• Amplitude Linearity: ±2% to 152 mm/s (6 in/s) peak
• Output Bias Voltage: -12 ±2.0 VDC
• Mounted Resonant Frequency: >5 kHz
• Transverse Sensitivity: <5% of sensitivity
• Broadband Noise Floor: 0.127 mm/s (0.005 in/s) rms nominal
• Grounding: Case isolated
• Maximum Cable Length: 305 meters (1000 feet) without signal degradation

Environmental & Physical Data

• Sensing Head Temperature: -55°C to +400°C (-67°F to +752°F)
• Integral Cable Temperature: -55°C to +400°C
• Electronics Temperature: -55°C to +121°C (-67°F to +250°F)
• Relative Humidity: Up to 100% non-submerged
• Shock Survivability: 24,535 m/s² (2500 g) peak
• Maximum Altitude: 2000 meters (6561 ft)
• Case Material: 300 series stainless steel
• Connector: 2-pin Mil-C-5015 receptacle, hermetically sealed, 304 SS shell
• Weight (8m cable): 1,111 grams (2.45 lb)
• Minimum Bend Radius: 51 mm (2.0 in)

Installation & Maintenance

• Mount on a flat, clean surface for optimal thermal contact.
• Use supplied hardware; torque to specified values.
• Avoid bending cable below 51 mm radius.
• Periodically check connector integrity and cable condition.
• No regular calibration required; factory certified.

Compatibility & Certifications

• Compliant with: FCC Part 15, EMC Directive 2014/30/EU, RoHS 2011/65/EU
• ATEX Certifications: 60079-01, 60079-07, 60079-11, 60079-15
• Temperature Classes: T4 (-40°C to +100°C) and T1 (-40°C to +400°C)
• Approvals: CSA, ATEX, IECEx (Multiple Approvals – 05)

Package Contents & Warranty

• High Temperature Velomitor System with 8m cable
• Mounting hardware and installation guide
• Warranty: 12 months against manufacturing defects
• Shipping: FedEx, UPS, DHL (12-24 hours dispatch)

Expert Review & Manager’s Insight

• Expert Review: “Exceptional high-temperature stability and linearity. The hermetically sealed design ensures reliable data in harsh environments.”
• Manager’s Insight: “This sensor reduces maintenance costs and downtime. Its proven performance makes it a top choice for critical rotating assets.”

Typical Applications

• Gas and steam turbines
• Centrifugal and axial compressors
• Pumps and fans in high-temperature processes
• Paper mills, refineries, and petrochemical plants
• Any rotating machinery up to +400°C surface temperature

FAQ

• Q: What is the maximum cable length?
• A: 305 meters (1000 feet) without signal loss.
• Q: Can I use this sensor in a wet area?
• A: Yes, it withstands 100% humidity and is hermetically sealed.
• Q: Is the case grounded?
• A: No, the case is isolated to prevent ground loops.
• Q: What approvals does it have?
• A: CSA, ATEX, and IECEx (Multiple Approvals – 05).
• Q: How do I choose between T4 and T1?
• A: T4 covers -40°C to +100°C ambient, T1 covers -40°C to +400°C surface.
• Q: Can I extend the cable?
• A: Yes, up to 305 m total with proper termination.
• Q: Does it work with existing Bently systems?
• A: Yes, it is fully compatible with Bently Nevada monitors.
• Q: What is the output polarity?
• A: Pin A positive with respect to Pin B when velocity is from base to top.
• Q: Is there a quick disconnect option?
• A: The standard 2-pin Mil-C-5015 connector allows easy disconnection.

Selection Guide

• For surface temperatures <100°C, choose T4 version.
• For surface temperatures up to 400°C, choose T1 version.
• Select cable length based on installation distance (8m standard).
• Verify mounting surface flatness and thread compatibility.
• For extreme vibration >680 Hz, check amplitude range.

Contact Information
For inquiries: sales@powergearx.com
Phone/WhatsApp: +86 18030005825

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