Description
Product Overview
The Bently Nevada 3500/34 TMR Relay Module belongs to the 3500 Series Machinery Protection System.
It supports applications that demand extremely high availability.
It matches safety system principles defined by ISA S84.01.
Triple modular redundancy ensures reliable alarm actuation.
- Brand: Bently Nevada
- Model: 3500/34
- Series: 3500 Machinery Protection System
- Module Type: TMR Relay Module
- Core Function: 2-out-of-3 alarm voting
System Architecture
The system includes two TMR Relay Modules and one TMR Relay I/O Module.
Both relay modules operate in parallel for redundancy.
Each monitor sends alarms through three independent paths.
- Three monitors supply alarm data
- Three independent evaluations per channel
- Invalid signals ignored during NOT OK status
- Relay I/O executes final 2oo3 decision
Technical Specifications
- Power Consumption: 9.6 W typical
- Relay Type: DPDT relays in SPST operation
- Relay Operation: Normally energized
- Contact Life: 100,000 cycles
- Measurement Range: Discrete alarm logic
- Frequency Response: Logic-based, no signal distortion
- Sensitivity: High, fault-tolerant logic paths
- Linearity: Digital evaluation, no drift
- Resolution: Channel-level alarm precision
- EMI Immunity: Designed for industrial noise
Contact Ratings
- Maximum Power: 60 W DC / 125 VA AC
- Maximum Voltage: 150 VDC / 220 VAC
- Maximum Current: 2 A
- Minimum Load: 100 mA at 5 VDC
Environmental Performance
- Operating Temperature: -30 °C to +65 °C
- Storage Temperature: -40 °C to +85 °C
- Humidity: 95% non-condensing
- Environmental Resistance: Industrial-grade design
Installation Guidelines
- Install relay module in half-height front slot
- Install I/O module in full-height rear slot
- Ensure correct rack grounding
- Verify monitor channel alignment
Commissioning and Maintenance
- LED indicators simplify health checks
- Hot-swap design reduces downtime
- Configuration changes require no rewiring
- Supports fast fault isolation
Compatibility
- Compatible with 3500 TMR Rack Interface Module
- Works with all 3500 series monitor modules
- Supports legacy and modern protection layouts
Certifications and Compliance
- Designed to meet ISA S84.01 concepts
- Suitable for safety-critical machinery systems
- Manufactured under strict quality controls
Typical Applications
- Gas and steam turbines
- Compressors and large pumps
- Power generation facilities
- Oil and gas rotating equipment
- Critical shutdown systems
Diagnostic Capabilities
- OK LED shows module health
- TX/RX LED confirms data flow
- Channel LEDs identify alarm sources
- Faults isolated without system trip
Package Contents
- 2 × 3500/34 TMR Relay Modules
- 1 × TMR Relay I/O Module
- Factory inspection certificate
- Protective industrial packaging
Warranty and Shipping
- Warranty: 12 months
- Shipping Options: FedEx, UPS, DHL
- Professional export packaging included
FAQ
What makes TMR better than single relay logic?
TMR prevents false trips caused by single failures.
Can this module replace standard 3500 relays?
Yes, when high availability is required.
How often should the relay be tested?
Annual testing is common in critical services.
Is special training required?
Basic 3500 system knowledge is sufficient.
How to choose between TMR and non-TMR?
Select TMR for shutdown or safety-related outputs.
Copyright © 2025 PLCDCS HUB Limited. All rights reserved.
Partner: Powergear X Automation Limited
Contact: +86 158 8020 0923
0.0 Average Rating Rated (0 Reviews)