Description
2. Product Overview
The 330180-91-05 is a core signal conditioning proximitor sensor from Bently Nevada’s industry-standard 3300 XL 8mm non-contact eddy current transducer system, fully compliant with API 670 machinery protection specifications. Designed for 9.0-meter total matched loop length and standard DIN rail cabinet installation, it receives weak high-frequency signals transmitted from 3300 series proximity probes and extension cables, and completes impedance matching, signal demodulation, amplification and linear voltage output conversion. As the critical intermediate processing unit of the vibration measurement chain, 330180-91-05 eliminates signal attenuation, ground loop drift and electromagnetic interference in complex industrial field wiring, delivers stable linear DC signals to 3500 monitoring racks, DCS and PLC safety interlock systems, and ensures high-precision measurement of shaft radial vibration, axial thrust position, rotor runout and Keyphasor rotational speed for critical rotating equipment protection.
3. Technical Specifications
- Brand: Bently Nevada
- Model: 330180-91-05
- Warranty: One Year
- Condition: 100% New & Original
- System Loop Length: 9.0 meters (suffix 91 = 9m full matched system length)
- Mounting Type: Standard DIN rail clip mounting for control cabinet installation
- Certification: Suffix 05 = ATEX, IECEx, ACSA hazardous area safety approvals
- Compatible Probes: All 3300 XL 8mm standard eddy current proximity probes
- Nominal Sensitivity: 7.87 V/mm (200 mV/mil)
- Linear Output Range: -2 VDC ~ -18 VDC proportional to probe-target gap
- Power Supply: -17.5 VDC to -26 VDC negative DC input
- Operating Temperature: -51°C to +100°C
- Storage Temperature: -51°C to +105°C
- Frequency Response: 0 Hz to 10 kHz (-3dB)
- Housing Material: Die-cast aluminum alloy, shock and vibration resistant
- Enclosure Protection: IP20 for indoor cabinet installation
- Connector Interface: Coaxial locking input port for transducer cable connection
- Dimension: 81.3 mm × 61 mm × 63.5 mm
- Net Weight: Approximately 0.25 kg
4. Application Scenarios
- Thermal Power Generation Plants: Paired with 8mm proximity probes on steam turbines, turbo-generators and boiler feedwater pumps to process displacement signals for automatic machinery trip and overload protection systems.
- Oil & Gas Petrochemical Facilities: Deployed for gas turbines, large centrifugal compressors and reciprocating process pumps, supporting long-distance signal transmission and predictive maintenance in hazardous explosive production zones.
- Heavy Industry & Metallurgy Production Lines: Installed on rolling mill main drives, large induced draft fans and high-speed rotary blowers, maintaining consistent measurement accuracy in high-temperature, dusty and strong EMI workshop environments.
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