Description
Bently 3500/42M‑01‑00 176449‑02
Technical Specifications Number of input channels: 4 independent configurable channels Supported transducer type: explosion‑proof certified 3300XL proximitor system, explosion‑proof velocity and acceleration seismic sensors Transducer power supply: ‑17.5 Vdc ~ ‑26 Vdc for proximitor; constant‑current excitation for seismic sensors Frequency response range: 0.5 Hz ~ 15000 Hz Measurement accuracy: ±1% full scale Power consumption: 9.5 W typical value, maximum 11 W Operating temperature: ‑40 ℃ ~ +70 ℃ Storage temperature: ‑40 ℃ ~ +85 ℃ Relative humidity: 5%‑95% RH, non‑condensing Shock resistance: 50 g peak value Vibration resistance: 10‑2000 Hz, 10 g peak value Backplane communication: 3500 proprietary system bus Module dimension: 241.3 mm × 24.4 mm × 241.8 mm Weight: 1.05 kg Compliance standard: API‑670, CE, ATEX intrinsic safety certification
Functional Features Four independent channels can be set to proximitor input or seismic sensor input separately. Built‑in intrinsic safety barrier circuit limits loop voltage and current for hazardous‑area field sensors. Digital integration algorithm converts acceleration signal to velocity engineering value. Dual‑level programmable Alert and Danger alarm setpoints, adjustable alarm hysteresis and time delay. Front‑panel LED indicators show channel health status, alarm trigger and module running condition. Buffered raw transducer signal output for external fault diagnosis instruments. Supports simplex, dual redundant and TMR triple modular redundant operation modes. All configuration parameters downloaded from 3500 configuration software. Upload real‑time measurement value and waveform data to System‑1 condition monitoring software. Drive 3500 series relay modules to realize machinery trip protection function. Hot‑swap supported under normal rack power supply.
Application Scenarios Relative shaft vibration and absolute casing vibration monitoring for hazardous‑area steam turbine and gas turbine units. Axial displacement and eccentricity measurement for petrochemical explosion‑proof‑zone centrifugal compressors. Casing vibration monitoring for explosion‑proof large fans and pump units. Mixed proximitor and seismic sensor measurement for offshore platform and coal‑chemical hazardous‑area rotating machinery. Machinery protection system for oil refinery hazardous location. Cooperate with 3500 rack communication module, relay module and redundant power supply module.
Performance Parameters Proximitor input impedance: 550 Ω Intrinsic safety barrier maximum output voltage: ‑28 Vdc Intrinsic safety barrier maximum short‑circuit current: 12 mA Seismic sensor excitation constant current: 4 mA Sampling rate: continuous 256 samples per channel, transient sampling up to 100000 samples per second Alarm response delay: less than 250 ms Measurement resolution: 0.1 μm for displacement; 0.01 mm/s for velocity Channel‑to‑channel crosstalk: less than 0.1% full scale MTBF value: more than 300000 hours under normal industrial environment
Material Composition Front panel: blue coated metal panel with silk‑screen marking and LED indicator window. Main circuit board: multi‑layer FR‑4 high‑temperature resistant printed circuit board. Safety barrier components: intrinsic safety resistors, zener diodes and isolation components. Signal processing parts: industrial grade ADC, FPGA chip and analog signal conditioning components. Module housing: aluminum alloy electromagnetic shielding shell. Locking device: stainless steel rack insertion latches. Connector: gold‑plated backplane connector and internal barrier signal connector.
Structural Features Standard single‑slot plug‑in module for 3500 instrument rack. Front‑panel LED indicator group and pull‑out latch mechanism. Rear gold‑plated multi‑pin connector connects rack backplane for power and system bus communication. Internal integrated intrinsic safety barrier circuit between input connector and signal conditioning circuit. Metal shielding shell separates hazardous‑side circuit, analog signal processing circuit and digital logic circuit. Circuit layout strictly isolates proximitor signal path and seismic signal path.
