Product Overview
The 330750-60-CN from Bently Nevada is a High Temperature Velomitor System engineered for extreme environments. It measures absolute vibration on surfaces up to +400°C (+752°F). The sensor head and integral hardline cable withstand continuous high heat. This model includes a 6-meter cable and country-specific approvals (CN). It delivers reliable data for gas turbines, steam turbines, and compressors.
Key Technical Specifications
- Brand: Bently Nevada (GE)
- Model / Product No.: 330750-60-CN
- Series: High Temperature Velomitor System
- Cable Length: 6 meters (60 option)
- Approvals: CN (Country Specific)
- Case Material: 300 series stainless steel, hermetically sealed
- Connector: 2-pin Mil-C-5015 receptacle, 304 SS shell
Performance Data
| Sensitivity | 5.7 mV/mm/s (145 mV/in/s) ±5% |
| Frequency Response | 15–2000 Hz (±3.0 dB); 20–1000 Hz (±0.9 dB) |
| Amplitude Range | 635 mm/s peak (below 680 Hz); 2940 m/s² above 680 Hz |
| Amplitude Linearity | ±2% to 152 mm/s peak |
| Transverse Sensitivity | Less than 5% of sensitivity |
| Output Bias Voltage | -12 ±2.0 VDC |
| Broadband Noise Floor | 0.127 mm/s rms nominal (15 Hz – 2 kHz) |
| Mounted Resonant Frequency | Greater than 5 kHz |
Environmental Limits & Durability
- 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)
- Shock Survivability: 24,535 m/s² (2500 g) peak
- Relative Humidity: Up to 100% (non-submerged)
- Maximum Cable Length: 305 meters (no signal degradation)
- Minimum Bend Radius: 51 mm (2.0 in)
- Weight: 953 grams (2.10 lb)
Installation & Compatibility
- Mounting: Standard installation in protected enclosure; wiring in conduit.
- Grounding: Case isolated for noise immunity.
- Polarity: Pin A positive with respect to Pin B (base to top velocity).
- Compatibility: Interfaces with Bently Nevada monitors and PLC systems like Modicon Quantum.
Diagnostics & Application
- Typical Applications: Gas turbines, steam turbines, compressors, high-temp fans, pumps.
- Diagnostic Capability: Detects bearing wear, imbalance, looseness, and transients.
- Provides velocity output for trend monitoring and predictive maintenance.
Compliance & Certifications
- FCC: Part 15 compliant – does not cause harmful interference.
- EMC: Directive 2014/30/EU
- RoHS: Directive 2011/65/EU
- ATEX: 60079-01, -07, -11, -15; Directive 2014/34/EU
- Temperature Class: T4 (-40°C to +100°C); T1 (-40°C to +400°C)
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spares.
- Global shipping with FedEx, UPS, DHL.
- Tested surplus/refurbished options available.
- 12-month warranty on all products.
- Technical verification performed before shipment.
- Support for obsolete control systems (e.g., Modicon Quantum).
Package Contents
- 1 x 330750-60-CN Velomitor Sensor Head with integral 6m cable
- Mounting hardware and documentation
FAQ – Quick Answers
- Q: Max surface temperature? +400°C (+752°F).
- Q: Can I extend the cable? Yes, up to 305 meters.
- Q: Is it ATEX approved? Yes, for hazardous areas.
- Q: What is the output? Velocity signal with -12 VDC bias.
Shipping & Contact
Shipping: FedEx, UPS, DHL – worldwide express.
Inquiries: info@oiltechcontrols.com | +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
.%20The%20sensor%20head%20and%20integral%20hardline%20cable%20withstand%20continuous%20high%20heat.%20This%20model%20includes%20a%206-meter%20cable%20and%20country-specific%20approvals%20(CN).%20It%20delivers%20reliable%20data%20for%20gas%20turbines,%20%5B…%5D&media=https://www.oiltechcontrols.com/wp-content/uploads/2026/08/330750-8.jpg){kind=link}
Reviews
There are no reviews yet.