3500/22M Transient Data Interface Module (Bently Nevada)
June 02, 2026

3500/22M Transient Data Interface Module (Bently Nevada)

Product Description The 3500/22M is a high-performance Transient Data Interface (TDI) module for the Bently Nevada 3500 Machinery Protection System. It integrates the functions of a Rack Interface Module (RIM) and a high-speed transient data processor, acting as the primary communication gateway between the 3500 rack and external software (e.g., System 1, 3500 Configuration Software). It collects steady-state and transient dynamic data (waveforms, spectra) from M-series monitors and transmits it via Ethernet for real-time monitoring, fault diagnosis, and predictive maintenance. Installed in Slot 1 (adjacent to the power supply), it is non-critical for protection but essential for data management.

Description

Model Interpretation

3500/22M‑AXX‑BXX

3500/22M: Base model (Transient Data Interface Module)

AXX: Communication Interface

01: 10/100BASE‑TX (Copper Ethernet, RJ45)

02: 100BASE‑FX (Fiber Optic Ethernet, SC)

BXX: Approvals

00: None

01: CSA/NRTL/C

02: ATEX/IECEx/CSA (Class 1, Zone 2)

Common Part Numbers: 138607‑01 (Copper), 146031‑02 (Fiber), 288055‑01 (PROFIBUS+Ethernet).

Technical Parameters

Mechanical

Form Factor: Single‑slot, full‑height

Dimensions (H×W×D): 120.7 mm × 25.4 mm × 251.5 mm

Weight: ~0.91 kg

Installation: Slot 1 of 3500/05 rack (mandatory for data acquisition)

Communication

Ethernet: 10/100 Mbps (RJ45 or Fiber), Modbus TCP/IP

PROFIBUS‑DP: 9‑pin D‑sub (slave, optional)

Front Panel: USB‑B (local configuration), LEDs (OK, TX/RX, TM, CONFIG OK)

Data Capacity: Up to 32 monitor channels (dynamic + metadata)

Data Acquisition

Data Types: Steady‑state (vibration, temperature), transient (time waveforms, spectra, events)

Sampling Rate: Up to 102.4 kHz (configurable)

Transient Capture: Pre‑/post‑alarm data, speed‑triggered events

Power & Environmental

Power Consumption: ~10.5 W (from rack backplane, 24 VDC)

Operating Temp: 0°C to +65°C

Storage Temp: −40°C to +85°C

Humidity: 5%–95% non‑condensing

Vibration/Shock: Industrial‑grade (IEC 60068)

Status & Protection

LED Indicators: OK (module health), TX/RX (communication), TM (Trip Multiplier), CONFIG OK (valid configuration)

Relay: Form C (fault alarm, configurable NO/NC)

Protection: Overvoltage, short‑circuit, thermal shutdown

Core Functions

Integrate RIM + high‑speed data acquisition in one module, replacing separate 3500/20 and communication processors.

Collect real‑time steady‑state and transient data from all M‑series monitors in the rack.

Transmit data via Ethernet (Modbus TCP/IP) or PROFIBUS‑DP to System 1 software for analysis and diagnostics.

Support transient event capture (pre‑/post‑alarm, speed‑triggered) with high sampling rates.

Enable local configuration via front‑panel USB‑B port.

Monitor rack health and report faults via LEDs and relay contact.

Hot‑swappable (in redundant power setups) for replacement without system shutdown.

Applications

Power Generation: Gas/steam turbines, generators, combined‑cycle plants (vibration monitoring, fault diagnosis).

Oil & Gas: Onshore/offshore compressors, pumps, fans, centrifuges (transient vibration analysis).

Petrochemical/Refining: Critical process machinery, motors, gearboxes (predictive maintenance).

Heavy Industry: Metallurgy, pulp & paper, mining (large rotating assets).

Condition Monitoring: System 1‑integrated sites requiring high‑speed transient data.

Usage & Maintenance

Installation: Insert into Slot 1 (leftmost, next to power supply); connect Ethernet/fiber and USB cables.

Configuration: Use front‑panel USB‑B with 3500 Configuration Software to set up communication and data acquisition parameters.

Maintenance: Inspect connectors annually; clean front‑panel LEDs/ports; no fans or consumables.

Status: Active; supported by Baker Hughes with full spare parts availability.


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