Bently Nevada 136711-02 3500/61 Temperature Monitor I/O Module with Internal Barriers

Product Overview

The Bently Nevada 136711-02 functions as a high-integrity I/O module specifically for the 3500/61 Temperature Monitor system. It integrates Internal Intrinsic Safety (IS) Barriers and Internal Terminations, allowing the 3500 rack to interface directly with thermocouples or RTDs located in hazardous industrial zones. By combining signal conditioning and safety isolation into a single hardware unit, it eliminates the need for external barrier housings and complex inter-cabinet wiring. We supply this module as 100% Brand New and original equipment, ensuring full compliance with factory safety certifications and machinery protection standards.

Part Number Breakdown

The 136711 series identifies specific safety and connection architectures for temperature monitoring:

• 136711: Base hardware for 3500/61 I/O interfaces.

• -02: Designates the configuration with Internal Barriers (for hazardous areas) and Internal Terminations (for direct field wiring).

Technical Specifications

Engineering Advantages

• Integrated Hazardous Zone Protection: The internal zener barriers limit the electrical energy entering explosive atmospheres. This design prevents thermal or electrical ignition at the sensor tip, fulfilling stringent safety requirements for refineries and chemical plants without requiring external signal isolators.

• Space-Efficient Direct Wiring: The internal termination architecture utilizes high-density screw terminals directly on the module. This saves significant DIN rail space in the control cabinet and simplifies the overall rack footprint.

• High-Bandwidth Signal Integrity: A 30 kHz bandwidth ensures the module captures rapid temperature fluctuations without signal lag. This precision allows the 3500/61 monitor to trigger safety interlocks based on real-time thermal physics.

• EMI/RFI Suppression: The module employs advanced differential input filtering to reject electromagnetic interference. This prevents the "signal bounce" often caused by nearby high-voltage motor starters, ensuring the system only reacts to genuine process variables.

FAQs

• Can I use the 136711-02 in non-hazardous applications?

  Yes. While designed with safety barriers for hazardous zones, this module functions perfectly in safe areas. However, you must observe the proper grounding protocols required for intrinsic safety circuits to maintain the module's specified performance.

• Does this module support both RTDs and Thermocouples?

  The 136711-02 routes signals for the 3500/61 monitor, which supports various RTD and TC types. You must configure the front-end 3500/61 monitor module via software to match the specific sensor connected to the 136711-02 termination points.

• What is the benefit of Internal Terminations over External Terminations?

  Internal terminations allow you to wire field cables directly to the back of the 3500 rack. This eliminates the cost of external termination blocks and the associated multi-pin cables, reducing potential failure points in the signal chain.

• How do I verify this is a genuine 100% Brand New unit?

  Every 136711-02 arrives in original Bently Nevada anti-static packaging with intact factory seals. The unit features a unique serial number for full traceability and a "Made in U.S.A" stamp on the chassis.