Bentley Nevada 3300/48 Case Expansion Monitor Module

The Bentley Nevada 3300/48 Case Expansion Monitor is a precision monitoring module used to measure turbine or machine casing thermal growth relative to its foundation. It uses dual LVDT inputs to provide accurate case expansion readings and configurable alarms for machinery protection. This module is part of the 3300 Series rack-based condition monitoring system. [ba.smartplcs.com] Technical Specifications Model: 3300/48 Case Expansion Monitor Function: Measures casing growth using two LVDT transducers; provides differential or independent‑channel readings Transducer Inputs: Two DC LVDT inputs; selectable scale factors: 10 mV/mil, 9 mV/mil, or 3.5 mV/mil Input Impedance: 1.0 MΩ Power Consumption: ~1.5 W typical Alarm Setpoints: Digitally adjustable Alert and Danger setpoints, 0–100% of full scale (available only in Differential mode) Recorder Outputs: Programmable +4 to +20 mA, +1 to +5 VDC, or 0 to –10 VDC; jumper‑selectable for dual direct channels or differential channel Buffered Outputs: Coaxial connectors on front panel; rear terminal access; short‑circuit protected Display: Front analog bargraph with OK / ALERT / DANGER indication (per 3300/48 standard) Operating Temperature: –40 °C to +85 °C (per 3300/48 series listing) Accuracy: ±0.33% full scale typical (recorder output) Mounting: Installs in 3300 Series rack; compatible with rear I/O module Applications: Steam turbines, compressors, generators, and other rotating machinery requiring expansion monitoring Manufacturer: Bentley Nevada (Baker Hughes) Country of Manufacture: USA Please review pictures carefully and let us know if you have any questions!