Bently Nevada 330980-71-05

Description

Core Measurement Specifications

• Matching Probe Type: 330704 series 11 mm high-temperature proximity probes
• Total System Cable Length: 7.0 meters (71 configuration code)
• Linear Working Gap Range: 1.0 mm – 4.0 mm (40 – 160 mils)
• System Scale Factor: 3.94 V/mm (100 mV/mil)
• DC Gap Voltage Output Range: -18 VDC to -24 VDC
• Frequency Response Bandwidth: 0 Hz (DC) – 10 kHz (+0/-3 dB)
• Measurement Accuracy: ±0.5% full scale range
• Calibration Standard Target: AISI 4140 carbon steel
• Minimum Measurable Target Diameter: 19 mm

Electrical Specifications

• Operating Power Supply: -18 VDC to -24 VDC negative DC power supply
• Maximum Current Consumption: 15 mA
• DC Output Impedance: 50 Ω
• Dynamic Signal Output: Isolated PROX OUT analog vibration signal + BNC coaxial port
• Maximum Lead Length to BNC Port: 3 meters
• Supply Voltage Stability: ≤2 mV output drift per 1 V supply change
• Signal Isolation: Full galvanic isolation between input probe circuit and output monitoring circuit
• Circuit Design: Optimized for high-temperature probe system stability

Mechanical & Structural Specifications (Exclusive for 330980-71-05)

• Mounting Mode: 35 mm standard DIN rail mounting (05 configuration code)
• Overall Dimensions: 76.2 mm × 101.6 mm × 50.8 mm
• Net Weight: 0.45 kg
• Housing Material: High-strength industrial anti-corrosion engineering plastic
• Internal Structure: Fully potted sealed high-temperature stable circuit board
• External Adjustment: Independent non-interacting zero potentiometer & span potentiometer
• Wiring Interface: Plug-in terminal blocks + BNC dynamic signal connector

Environmental Specifications

• Operating Temperature: -35 °C to +85 °C
• Storage Temperature: -52 °C to +100 °C
• Humidity Resistance: 100% condensing environment, non-submerged operation
• Protection Rating: IP65
• Anti-vibration Performance: 10–2000 Hz, 10 g continuous acceleration resistance
• Anti-interference Performance: Fully complies with industrial EMC electromagnetic compatibility standards
• System Adaptability: Fully matched with +204 °C high-temperature probe system signal characteristics

Certifications & Compliance

• Fully compliant with API 670 Machinery Protection Standard
• CE Industrial Safety Certification
• CSA NRTL/C Certification
• RoHS Lead-Free Compliance

Core Functional Features

1. 7.0 Meters Dedicated High-Temperature System Length Matching

   Circuit parameters are strictly optimized for exact 7m total probe+extension cable high-temperature system length, ensures optimal linearity, signal stability and temperature compensation performance without matching deviation.
2. Integrated Complete High-Stability Proximitor Signal Processing

   Built-in full probe excitation, amplification, linearization, filtering and high-temperature temperature compensation circuits. No external auxiliary modules required, completes all signal conditioning work independently for high-temperature transducer systems.
3. Dual Signal Output Architecture

   Primary DC gap voltage output for static shaft radial/axial position monitoring; secondary dynamic AC vibration signal output for high-precision high-temperature machinery fault diagnosis and waveform analysis.
4. Standard DIN Rail Mounting Design

   35 mm DIN rail installation, plug-and-play terminal wiring, suitable for compact arrangement inside industrial control cabinets.
5. Independent Non-Interfering Zero & Span Calibration

   External adjustable zero and span potentiometers under label cover, realizes accurate gap voltage calibration for high-temperature probe systems without mutual interference.
6. Built-In Test Input Interface

   Supports function generator signal injection, realizes fast loop output verification and on-site debugging without equipment disassembly.
7. Complete Fault Detection Circuit

   Automatically detects probe damage, cable breakage and loose connection faults; outputs abnormal signal status for system fault alarm.
8. Ultra-Wide Temperature Adaptability & High Stability

   Stable operation from -35 °C to +85 °C, with built-in temperature compensation, perfectly adapts to signal drift characteristics of high-temperature probes.
9. Full System Interchangeability & API 670 Compliance

   100% compatible with all 330704 high-temperature probes, 330854 high-temperature cables and 3300/3500 monitoring systems; meets international rotating machinery protection specifications for formal project acceptance.
10. Fully Potted Sealed Structure

    Internal circuit is fully encapsulated, resistant to dust, moisture and strong electromagnetic interference, with extremely long service life.

Main Application Scenarios

• High-temperature power plant steam turbines, gas turbines and generator units
• Petrochemical high-temperature centrifugal compressors and high-pressure process gas compressors
• High-temperature industrial oil pumps, water pumps and high-speed centrifugal pumps
• High-temperature large industrial fans, blowers and induced draft fans
• High-temperature high-voltage heavy-duty induction motors and motor bearing systems
• Offshore oil & gas platform high-temperature rotating production equipment
• High-temperature chemical processing large rotating machinery
• Machinery predictive maintenance and high-temperature rotor dynamic analysis systems
• All industrial occasions requiring API 670 standard high-temperature shaft vibration and position protection

Model Code Definition (330980-71-05)

• 330980: 3300 XL series 11 mm high-temperature eddy current proximitor signal conditioner
• 71: 7.0 meters total probe & extension cable system length
• 05: 35 mm DIN rail mounting configuration