Description
Bently 3500/60‑01‑00 163179‑01
Technical Specifications Number of input channels: 4 independent configurable channels Supported transducer: 2‑wire / 3‑wire / 4‑wire RTD, multiple‑type thermocouple RTD type support: Pt100, Pt1000, Cu100 Thermocouple type support: J, K, T, E, N, S, R, B Temperature measurement range: ‑200 ℃ ~ +850 ℃ Measurement accuracy: ±0.5 ℃ for RTD; ±1 ℃ for thermocouple Cold‑junction compensation: built‑in automatic cold‑junction compensation for thermocouple Power consumption: 6 W typical value, maximum 7.8 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: 0.85 kg Compliance standard: API‑670, CE certification
Functional Features Four independent channels can be configured for RTD or thermocouple input separately. Supports 2‑wire, 3‑wire, 4‑wire RTD connection modes. Built‑in automatic cold‑junction compensation circuit for thermocouple measurement. Dual‑level programmable Alert and Danger temperature alarm setpoints, configurable alarm hysteresis and delay time. Front‑panel LED indicators display channel health status, alarm trigger status and module running state. Supports sensor break detection and short‑circuit fault diagnosis. Supports simplex, dual redundant and TMR triple‑modular‑redundant working modes. All measurement parameters and alarm thresholds downloaded by 3500 configuration software. Upload real‑time temperature trend data to System‑1 machinery‑diagnostic software. Output alarm logic to 3500 series relay modules for machinery protection. External termination version adopts rear terminal‑block wiring without internal safety‑barrier circuit. Hot‑swap supported under normal rack power supply.
Application Scenarios Bearing‑metal temperature monitoring for steam turbine and gas turbine units. Lubricating‑oil inlet and outlet temperature measurement for centrifugal compressors. Stator winding temperature monitoring for turbo‑generator and hydro‑generator set. Casing temperature monitoring for large rotating‑machinery. Temperature condition‑monitoring for power‑plant and petrochemical non‑hazardous‑area rotating‑equipment. Installed in 3500 rack cooperating with vibration‑monitor module, communication module and relay module.
Performance Parameters Sampling rate: 10 samples per channel continuous sampling Alarm response delay: less than 1000 ms Channel‑to‑channel crosstalk: less than 0.1% full scale MTBF value: more than 370000 hours under normal industrial environment
Material Composition Front panel: blue coated metal panel with silk‑screen text and LED indicator window. Main circuit board: multi‑layer FR‑4 high‑temperature resistant printed circuit board. Electronic components: RTD constant‑current excitation circuit, thermocouple cold‑junction compensation circuit, high‑precision ADC, FPGA digital‑processing unit. Module housing: aluminum alloy electromagnetic shielding shell. Locking mechanism: stainless steel rack insertion latches. Connector: gold‑plated backplane connector and gold‑plated external‑termination terminal block.
Structural Features Standard single‑slot plug‑in module for 3500 instrument rack. Front‑panel LED status‑indicator group and pull‑out latch mechanism. Rear gold‑plated multi‑pin backplane connector for power‑supply and system‑bus communication. External termination version routes all temperature‑sensor wiring to rear terminal block, no internal barrier circuit. Internal metal‑shielding shell isolates analog temperature‑signal processing zone and digital‑logic zone.
Working Principle When channel configured for RTD input: constant‑current excitation circuit supplies constant current to RTD sensor, resistance change caused by temperature variation is converted into analog voltage signal. When channel configured for thermocouple input: thermoelectric potential signal enters conditioning circuit, built‑in cold‑junction‑compensation circuit compensates cold‑junction temperature offset. High‑precision ADC converts analog signal into digital quantity. FPGA and MCU unit complete digital filtering and temperature‑value conversion according to configured sensor type and parameters. Measured temperature value compares with pre‑programmed Alert and Danger alarm setpoints. Sensor break and short‑circuit fault will be detected and reported. Alarm flag is generated when alarm condition is satisfied and transmitted to system bus and relay module. Real‑time temperature data is uploaded through rack backplane bus to rack‑interface module for upper‑level configuration and diagnostic‑software access.
