Description

The 3500/04-01  (Replaced by 3500/04-01-00) provides an intrinsically safe (IS) earth connection through the 3500 system backplane for transducer systems connected directly to the machinery protection system. This 3500/04 Internal Barriers Earthing Module is a required core component in any 3500 rack configuration that incorporates intrinsically safe internal barrier I/O modules. By providing a dedicated low-impedance path to the system ground, it ensures proper fault current dissipation and explosion protection within hazardous area installations without degrading overall monitor performance. The unit requires a dedicated I/O slot position within the rack backplane, establishing a centralized safety ground network that supports comprehensive sensor integration across industrial machinery protection applications.

Features

• Intrinsically Safe Earthing Infrastructure: Provides a centralized, high-integrity intrinsically safe earth reference directly through the rack backplane assembly.
• Integral System Architecture: Designed as an internal component of the monitor rack to maintain full system performance without requiring external grounding barriers.
• Dedicated Position Security: Integrates into a dedicated monitor slot position to secure safety-critical grounding integrity across the entire chassis layout.
• Mixed Module Compatibility: Supports seamless co-existence of both standard and intrinsically safe internal barrier I/O modules within the same rack infrastructure.

Applications

• Intrinsically Safe Grounding for Proximity and Seismic Transducer Barrier Systems 
• Hazardous Area Machine Protection and Explosion Isolation Systems 
• Centralized Backplane Grounding for Thermocouple and RTD Internal Barrier Monitors 
• Industrial Machinery Vibration and Position Monitoring Networks requiring IS Compliance 

Ordering Information

Technical Specifications

Mechanical

Environmental

Connections/Interfaces

Installation Guidelines

• Dedicated Slot Assignment: The module must be installed in a dedicated monitor position within the standard 3500 chassis footprint. This dedicated allocation limits a standard 19-inch rack to a maximum of 13 available monitor positions.
• Positioning for Maintenance: Position the unit in a rack slot that permits straightforward, unhindered access for routine online maintenance procedures and inspections.
• Isolation and Separation Spacing: When standard I/O modules or an earthing module are arranged between a pair of internal barrier I/O modules, maintain a minimum spacing of two open rack positions to allow online access without disturbing adjacent wiring trunks.
• Upgrade Software Requirements: Rack upgrading projects migrating standard modules to internal barrier configurations require Revision 2.3 or later of the 3500 Rack Configuration software alongside specified firmware baselines for older legacy monitors.

Compliance and Certifications

• FCC: Complies with part 15 of the FCC Rules.
• EMC Directive: European Community Directive 2014/30/EU; Standards: EN 61000-6-2 (Industrial Immunity) and EN 61000-6-4 (Industrial Emissions).
• Electrical Safety: European Community Low Voltage Directive 2014/35/EU conforming to standard EN 61010-1.
• RoHS Directive: Complies with European Community Directive 2011/65/EU.
• Maritime Approval: ABS Marine and Offshore Applications; DNV GL Rules for Classification of Ships and Offshore Units.
• Hazardous Area Approvals: Class I, Division 2, Groups A, B, C, and D; Class I, Zone 2: AEx/Ex nA nC ic IIC T4 Gc and AEx/Ex ec nC ic IIC T4 Gc; ATEX/IECEx Ex nA nC ic IIC T4 Gc / Ex ec nC ic IIC T4/T5 Gc (T4 @ Ta = -20 degC to +65 degC).