Description
Product Core Brief
- Model: 3500/22M
- Brand: BENTLY NEVADA
- Series: 3500 Machinery Protection System
- Core Function: Interfaces the 3500 rack with System 1 software for continuous and transient data collection.
- Product Type: Transient Data Interface (TDI) Module
- Key Specs: Enhanced TDI | Multi-Protocol Support | Slot 1 Placement
- Condition: New Original (New Surplus)
BENTLY 3500/22M
Product Introduction
The BENTLY 3500/22M is an enhanced Transient Data Interface (TDI) module that serves as the high-performance communication gateway for the 3500 Machinery Protection System. Acting as the central hub for system management, it bridges the 3500 monitoring hardware and host software (such as System 1 State Monitoring and Diagnostic Software).
Compared to the standard 3500/22, the 3500/22M features strengthened communication expansion capabilities. It supports multiple mainstream industrial protocols (including Modbus TCP/RTU) and high-speed Ethernet, enabling seamless integration with DCS, PLC, and System 1 software. It continuously collects steady-state and high-resolution transient dynamic (waveform) data from M-series monitors (e.g., 3500/40M, 3500/42M) and must be installed in Slot 1, directly adjacent to the power supply.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Enhanced Transient Data Interface (TDI) |
| Communication Protocols | Ethernet TCP/IP, Modbus TCP/RTU, BN TDI |
| Front Panel Ports | USB-B, RS232 (9-pin D-Sub), Ethernet (10/100Base-T or 100Base-FX) |
| Power Consumption | 7.7 W (Typical) / 10.5 W (Max) |
| Installation Slot | Slot 1 (Next to Power Supply) |
| Data Collection | Steady-state, Alarm, & High-res Transient Waveforms |
| Keyphasor Inputs | Supports up to 4 Keyphasor signals |
| Compliance | API 670, CE, CSA |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage, bent pins, or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.
BENTLY 3500/22M
Replacement Pitfall Guide
❗ Standard vs. Enhanced TDI Confusion: The 3500/22M is the enhanced version with multi-protocol support. If replacing a standard 3500/22, verify that your System 1 software and DCS/PLC configurations are compatible with the 22M’s expanded protocol capabilities.
❗ Slot Placement Violation: The TDI must be installed in Slot 1 (immediately to the right of the power supply). Placing it in any other slot will prevent backplane communication.
❗ Non-Critical Path Misconception: While the TDI handles data collection, it is not part of the critical mechanical protection path. A TDI failure will halt data flow to System 1, but the 3500 monitors will continue to execute relay trips and protect the machine autonomously.
❗ Configuration Key Lock: The module features a RUN/PROG key switch. Ensure the key is in the “RUN” position during normal operation to prevent accidental reconfiguration. Lock the switch if remote reconfiguration is not required.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- 3500/22M → 3500/22 (Standard) : Needs Adaptation — Enhanced Multi-Protocol vs. Standard TDI
- 3500/22M → 3500/20 : Needs Adaptation — TDI (Data + Interface) vs. RIM (Interface Only, requires separate comm processor)
- 3500/22M → 3500/40M / 3500/42M : Direct — Compatible M-Series Monitors for Data Collection
- Required Companion: 3500/05 or 3500/06 Rack, System 1 Software
- Max Data Rate: 100 Mbps (Auto-detect Ethernet)
