Bently Nevada 3701/44 ADAPT Aeroderivative Gas Turbine Monitor

Product Description

The 3701/44 is a compact ADAPT series machinery protection and condition monitoring unit specially developed for aeroderivative gas turbines and driven equipment. Different from traditional rack-style 3500 series, it adopts skid-mounted design which can be installed close to the turbine to reduce long-distance sensor wiring. It has powerful DSP tracking filter functions, suitable for high-order vibration, combustion dynamic pressure pulsation monitoring under variable speed conditions of aero gas turbines. It supports simplex and dual-redundant processor versions for safety protection of critical rotating equipment, configured via BNMC software and connected to System 1 for data analysis and storage.

• Part Number: 3701/44, Brand: Bently Nevada (Baker Hughes)
• Channel allocation: 12 dynamic sensor input channels + 2 galvanically isolated Keyphasor / speed input channels
• Supported sensors: Eddy current proximity probes, IEPE / charge accelerometers, velocity sensors, dynamic pressure sensors, magnetic pickup speed probes
• Power supply: Dual redundant 24 VDC power input
• Communication: Dual Ethernet ports, supports connection to System 1 condition monitoring platform and upper DCS
• Core algorithm: Rotating speed tracking filter, multi-order bandpass filter, nX vibration tracking, combustion pressure fluctuation analysis
• Mounting: Skid / local field mounting, compact structure, rugged industrial housing
• Configuration software: BNMC (Bently Nevada Monitor Configuration)
• Certifications: CE, EMC, meets API 670 machinery protection requirements
• Manufacturer Status: Current mainstream ADAPT series monitor, available original new, surplus and fully tested refurbished units
• Typical gross weight: approx 4.2 kg, origin: United States
• Matched accessories: Terminal base, PAA input module, System 1 software

Applications

• Aeroderivative gas turbine vibration, thrust, speed and combustion dynamic pressure protection monitoring
• Gas turbine driven centrifugal compressor, gearbox auxiliary machinery monitoring
• Offshore platform, power generation, pipeline compressor train condition monitoring and protection
• Field skid integrated monitoring system, upgrade and replacement of old 3500 frame monitoring points

FAQ

Q: What is the difference between 3701/44 and 3500 series?
A: 3500 is a large rack-based modular system for large steam turbines and heavy-duty gas turbines; 3701/44 is compact skid-mounted, optimized for aeroderivative gas turbines, with stronger high-frequency dynamic pressure and variable-speed tracking filter capability.

Q: Can it work with System 1 software?
A: Yes, it supports data upload, waveform capture, trend analysis and fault diagnosis in System 1 platform.

Q: What is the difference between simplex and dual redundant DR version?
A: DR dual redundant processor version is for SIL critical protection shutdown application; simplex version is for general condition monitoring without protection trip.