Bently Nevada 3500/45 Position Monitor Module

Product Description

3500/45 is a dedicated position monitoring module for the Bently Nevada 3500 rotating‑machinery protection rack. It accepts signals from eddy‑current proximity

probes and LVDT transducers, continuously measuring thrust position, differential expansion, valve position and rod‑drop parameters of steam turbines, gas turbines, centrifugal

compressors and large pumps. It provides 4‑20mA analogue outputs and alarm relay contacts, conforms to API‑670 standard and is widely deployed in power plants, petrochemical

factories and steel mills.

Technical Specifications

Full Model: 3500/45 Brand: Bently Nevada (Baker‑Hughes), Origin: United‑States Product Series: 3500 machinery‑protection system Monitoring Channels: 4‑channel position measurement Input Signal Type: Eddy‑current probe (‑2 to ‑18 VDC), LVDT AC/DC excitation Measurement Range: Configurable per channel, typical 0‑50 mm Analogue Output: 4‑20mA per channel, isolated Alarm Output: Configurable alert / danger setpoints with relay contacts System Bus: 3500 rack internal communication bus Power Supply: +5 VDC / ±12 VDC from rack backplane Installation Form: Hot‑swappable rack‑slot card installation Operating‑Temperature: ‑40℃ ~ +65℃ Storage‑Temperature: ‑40℃ ~ +85℃ Ambient Humidity: 5%–95% non‑condensing industrial‑grade Certifications: CE, UL, API‑670 compliance, industrial EMC certification

Key FeaturesFour independent position channels support simultaneous thrust‑position, differential‑expansion and valve‑position monitoring Compatible with both eddy‑current proximity probes and LVDT displacement transducers Precise 4‑20mA isolated analogue output for direct connection to DCS / SCADA systems Configurable alert and danger setpoints with latching / non‑latching relay options Hot‑swap design enables on‑line module replacement without shutting down the protection rack Built‑in channel diagnostics detect probe / cable open‑circuit and short‑circuit faults Complies with API‑670 standard for heavy‑duty rotating‑machinery protection Compact plug‑in card structure integrates seamlessly with the 3500 rack ecosystem