Description
Bently 3500/40M‑01‑00 140734‑01
Technical Specifications Number of input channels: 4 independent channels Compatible transducer: 3300XL 5‑meter and 9‑meter proximitor systems with explosion‑proof certification Transducer power supply: ‑17.5 Vdc to ‑26 Vdc Measurement sensitivity: 7.87 V/mm default for 8mm probe system Frequency response range: 0 Hz to 10000 Hz Measurement accuracy: ±0.5% full scale Power consumption: 4.5 W typical value, maximum 8.2 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: 1.02 kg Compliance standard: API‑670, CE, ATEX intrinsic safety certification
Functional Features Four independent configurable measurement channels. Built‑in intrinsic safety barrier circuit for hazardous area transducer connection. Dual‑level programmable Alert and Danger alarm setpoints, adjustable hysteresis and delay time. Front‑panel LED indicators display channel health, alarm and module running state. Buffered raw proximitor signal output for external diagnosis. Supports simplex, dual redundancy and TMR triple modular redundant operation modes. Configuration parameters downloaded from 3500 configuration software. Upload real‑time measurement and alarm data to System‑1 condition monitoring software. Drive 3500 series relay modules to realize machinery trip protection. Hot‑swap supported under normal rack operating power. Internal barrier circuit limits voltage and current for field hazardous‑area loop.
Application Scenarios Radial shaft vibration monitoring for explosion‑proof zone steam turbine and gas turbine. Axial thrust displacement protection for petrochemical hazardous‑area centrifugal compressors. Rotor eccentricity measurement for explosion‑proof large rotating equipment. Differential expansion monitoring for turbine in chemical hazardous location. Machinery protection system for oil refinery, offshore platform and coal‑chemical hazardous area. Large explosion‑proof fan and pump unit condition monitoring. Installed inside 3500 rack with communication, relay and redundant power modules.
Performance Parameters Input impedance for proximitor signal: 550 Ω Intrinsic safety barrier maximum output voltage: ‑28 Vdc Intrinsic safety barrier maximum short‑circuit current: 12 mA Sampling rate: continuous 256 samples per channel, transient sampling up to 12800 samples per second Alarm response delay: less than 200 ms Measurement resolution: 0.1 μm Signal output range: ‑1 Vdc ~ ‑17 Vdc Channel‑to‑channel crosstalk: less than 0.1% full scale MTBF value: more than 320000 hours under normal industrial environment
Material Composition Front panel: blue coated metal panel with silk‑screen printed text and LED window. Main circuit board: multi‑layer FR‑4 high‑temperature resistant printed circuit board. Safety barrier circuit components: high‑precision safety resistors, zener diodes and isolation components. Other electronic parts: industrial grade ADC, FPGA and signal processing chips. 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 rack. Front panel fitted with LED status indicator and pull‑out latch. Rear gold‑plated multi‑pin connector connects rack backplane for power and system bus. Internal integrated intrinsic safety barrier circuit between input connector and signal conditioning circuit. Metal shielding shell separates analog signal zone, barrier circuit zone and digital logic zone. Internal circuit layout strictly isolates hazardous‑side circuit and safe‑side circuit.
Working Principle Proximitor signal passes through built‑in intrinsic safety barrier circuit first to limit voltage and current for hazardous‑area loop. Protected analog voltage signal enters signal conditioning circuit and high‑precision ADC converter. Digital FPGA and MCU unit implement digital filtering, linear compensation and engineering value conversion according to configured transducer parameters. Measured value compares with programmed Alert and Danger thresholds. Alarm flag is generated once threshold is exceeded and transmitted to system bus and relay module. Real‑time data is uploaded through rack backplane bus to rack interface module for upper software access. Buffered raw analog signal is output for external diagnostic instrument.
Installation Requirements Insert module into designated slot of 3500 instrument rack, tighten front‑panel latches for reliable backplane contact. Transducer signal connects to internal barrier circuit inside rack, no external safety barrier needed. Must work together with 3500/20 rack interface module for configuration download. Rack redundant power supply shall keep normal operation. Maintain 20 mm ventilation gap above and below rack. Hazardous‑area field wiring must comply with ATEX intrinsic safety installation specification. Separate sensor signal cable from high‑power power cable for anti‑interference. Complete parameter configuration with 3500 configuration software after hardware installation. Confirm channel OK LED light after power‑on.
