136711-02 - I/O Module

SPECIFICATIONS

Part Number: 136711-02
Manufacturer: Bently Nevada
Product type: I/O Module with Internal Barriers
Dimensions: 241.3 mm x 24.4 mm x163.1 mm
Weight: 0.46 kg
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

136711-02 is a I/O Module developed by Bently Nevada. It is an I/O Module with Internal Barriers and Internal Terminations. The Internal Barriers serve as intrinsically safe interfaces, offering explosion protection for transducer systems directly connected to the System. Designed to seamlessly integrate with the System, these internal barriers offer a practical and cost-efficient method for the installation of diverse transducer systems in hazardous environments.

Installation Guidelines

• Specially designed Monitor I/O Modules within the 3500 rack incorporate internal barriers.
• These barriers offer crucial explosion protection for transducer systems connected to the 3500 system. An intrinsically safe (IS) earthing module establishes the IS earth connection via the 3500 system backplane.
• However, this IS Earth Module necessitates a dedicated I/O module position, preventing the utilization of this monitor position for other 3500 System modules. Consequently, a standard 19-inch rack is limited to accommodating 13 monitor positions. Additionally, the installation of internal barriers within a 3500 rack entails certain limitations on available installation options.

New Rack Installations

• Within a single rack, both internal barrier and standard I/O module types can coexist, ensuring the segregation between hazardous and safe area field wiring remains intact.
• However, the inclusion of the External Termination option is not viable for I/O modules with internal barriers due to restrictions stemming from hazardous area approvals, which prohibit the utilization of intrinsically safe wiring within multi-cored cable assemblies.
• It's important to note that monitors featuring Triple Modular Redundant (TMR) rack options cannot make use of internal barrier I/O modules. This is because connecting a transducer to multiple I/O module inputs in such cases would compromise the integrity of the intrinsically safe (IS) system. In instances where a rack incorporates any internal barrier module, the presence of a 3500/04-01 IS Earthing Module is mandatory. This IS Earthing Module is responsible for establishing the Barrier Module IS earth connection, ensuring the system's safety and reliability.

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Frequently Asked Questions

What is 136711-02?
It is a I/O Module with Internal Barriers developed by Bently Nevada.

Why is it important to consider rack position for internal barrier I/O modules?
Considering the rack position is essential because internal barrier I/O modules have a greater depth than standard modules. Proper positioning ensures that these modules remain easily accessible during maintenance tasks, streamlining upkeep processes.

Are there any restrictions on rack positions for I/O modules and IS Earthing modules?
No, internal barrier I/O modules and IS Earthing modules can occupy any general-purpose rack position. They can also be placed adjacent to standard I/O module types. Importantly, this arrangement maintains the required 50 mm (2 in) physical separation between safe and hazardous area field wiring.

What is the significance of the 50 mm physical separation requirement?
The 50 mm physical separation requirement between safe and hazardous area field wiring is crucial for safety. This separation prevents any potential interference or cross-talk between the two types of wiring, ensuring the integrity and reliability of the system.

Can internal barrier I/O modules and standard I/O module types coexist in the same rack?
Yes, we can be placed together in the same rack. However, their positioning must adhere to the physical separation requirement to maintain the safety and functionality of the system.