Product Overview

The 3500/22M-01-01-00 TDI Module from Bently Nevada connects your 3500 rack to host software. It handles data transfer for condition monitoring. This module works with Ethernet or USB. It suits standard monitoring tasks.

Key Features – Simple View

• Power use: Only 10.5 watts
• Ethernet ports: 10Base-T or 100Base-TX (auto sensing)
• Front USB: Easy local connection
• Relay output: OK relay rated 5A @ 24Vdc/120Vac
• Wide temp range: -30°C to +65°C working
• Long battery life: 38 years powered at 50°C

Technical Data – Tree View

• General
  • Brand: Bently Nevada
  • Model: 3500/22M-01-01-00
  • Type: TDI Module with I/O (Transient Data Interface)
  • Made in: U.S.A.
  • Weight total: 1.11 kg
• Power & Inputs
  • Consumption: 10.5 Watts
  • Front panel: USB-B port
  • Ethernet I/O: 10Base-T or 100Base-TX, auto sensing
  • Optional fiber: 100Base-FX (different model)
• Outputs & Indicators
  • OK LED: Module works fine
  • TX/RX LED: Talks to other rack modules
  • TM LED: Trip Multiply mode active
  • CONFIG OK LED: Valid rack config loaded
  • OK Relay: 5A @ 24Vdc/120Vac, normally energized
• System Contacts
  • Trip Multiply: Dry contact, less than 1 mA
  • Alarm Inhibit: Turns off all alarms
  • Rack Reset: Clears latched alarms
• Communications
  • BN Host Protocol: For config & data software
  • BN TDI Protocol: For System 1 software
  • USB cable max: 5 meters (3m cable included)
  • Ethernet cable max: 100 meters
  • RJ45 connector for 10/100Base-TX
• Environmental Limits
  • Working temp: -30°C to +65°C
  • Storage temp: -40°C to +85°C
  • Humidity: 95% non-condensing
  • Battery (powered): 38 years @ 50°C
  • Battery (unpowered): 12 years @ 50°C
• Physical Size
  • TDI module: 241.3 x 24.4 x 241.8 mm, 0.91 kg
  • I/O module: 241.3 x 24.4 x 99.1 mm, 0.20 kg
  • Rack slots: TDI uses 1 front slot, I/O uses 1 rear slot

Expert Review

“The 3500/22M TDI Module is the backbone of Bently Nevada 3500 data collection. Its auto-sensing Ethernet and USB front port make setup painless. The OK relay with arc suppression protects your PLC inputs. Battery life of 38 years powered means no maintenance worries. For engineers upgrading old racks, this module reduces downtime.” — Senior Instrumentation Engineer, 12 years power industry.

Manager’s Insight

“Use the 3500/22M-01-01-00 for all standard monitoring jobs. The trip multiply contact allows safe overspeed testing. Alarm inhibit helps during maintenance windows. Order the fiber option only if cable runs exceed 100 meters. Keep a spare TDI module on site. It cuts recovery time from days to minutes.” — Reliability Manager, oil & gas.

Applicable Devices & Use Cases

• Devices: Steam turbines, gas turbines, centrifugal compressors, axial compressors, large pumps, generators, gearboxes, fans, blowers
• Applications: Real-time vibration data streaming, transient capture during startup/shutdown, alarm history logging, predictive maintenance integration, connection to System 1 software, remote monitoring via Ethernet, field troubleshooting via USB
• Ideal for: Power plants, refineries, chemical plants, offshore platforms, steel mills, paper machines, water treatment facilities

Frequently Asked Questions (FAQ)

• What is the difference between BN Host and BN TDI protocols?
• BN Host works with Bently configuration and data software. BN TDI works only with System 1 diagnostic software.
• Can I use this module without the I/O rear module?
• No. The TDI front module needs its matching I/O rear module for any communication.
• How do I know if my Ethernet connection is working?
• Check the TX/RX LED on front panel. Blinking means data moving between rack and host.
• What happens if battery dies?
• The module keeps working but loses time stamp during power loss. Replace battery every 10 years for safety.
• Can I hot-swap the 3500/22M while rack is powered?
• Yes. The 3500 rack supports hot-swap. No need to power down. Just slide out and insert new one.

Selection & Buying Guide

• • Warranty: 12 months against factory defects. Covers parts and labor.
  • Shipping: 12-24 hours dispatch after payment confirmed.
  • Carriers: FedEx, UPS, DHL express worldwide. Tracking provided.
  • Choose this model if: You need standard Ethernet (copper cable) and no hazardous area approval.
  • Choose fiber model (3500/22M-01-02-00) if: Cable run exceeds 100 meters or high electrical noise area.
  • Check compatibility: Works with all 3500 monitoring modules (like 3500/42, 3500/40, 3500/25).
  • Pro tip: Order a spare USB cable (3m) and keep configuration backup on laptop.