3500/22M 138607-02 BENTLY

The BENTLY NEVADA 3500/22M 138607-02 is a quad-channel relay output module designed for the Bently Nevada 3500 machinery protection system. Manufactured by Bently Nevada (a Baker Hughes business), this module serves as the critical final element in the safety chain, converting protection system decisions into physical actions to isolate equipment and prevent catastrophic failure.

Application Scenarios:

In a natural gas compressor station, the protection system monitoring a high-pressure compressor detects dangerously high vibration levels. The BENTLY NEVADA 3500/22M 138607-02 module receives the trip signal from the monitoring modules. Within milliseconds, its heavy-duty relay contacts change state, de-energizing the circuit to the compressor's emergency shutdown valve, causing it to close and safely isolate the compressor. This direct, reliable action prevents mechanical disintegration and a potential gas release, solving the critical pain point of ensuring that a protection decision is executed with absolute certainty.

Parameter:

Technical Principles and Innovative Values:

· •Innovation Point 1: High-Capacity, Fault-Safe Relay Design. The 3500/22M 138607-02 uses robust, industrial-grade relays with contacts rated for high inrush currents. This allows them to directly drive inductive loads like solenoid valves and motor starters without requiring intermediate contactors. The design is typically "de-energize to trip," meaning a loss of power or a system fault will cause a safe state (shutdown), which is a fundamental safety principle.

· •Innovation Point 2: Independent and Isolated Channels. Each of the four relay channels is completely independent, with separate power supplies and control logic. This isolation prevents a failure in one channel (e.g., a welded contact) from affecting the others, ensuring that other protection functions remain fully operational and maximizing system availability and safety.

· •Innovation Point 3: Integrated Contact Status Monitoring. The module provides a feedback signal for each relay contact back to the 3500 system's controller. This allows the system to perform a critical health check: it can verify that the relay actually changed state when commanded. This diagnostic capability helps to detect dangerous failures, such as a welded contact, that could prevent a shutdown when required.

Application Cases and Industry Value:

A coal-fired power plant's boiler feed pump turbine experienced a sudden loss of lubrication oil pressure. The BENTLY NEVADA 3500/22M 138607-02 module received the trip signal from the monitoring system and immediately de-energized, tripping the turbine. The fast, reliable operation of the relay prevented catastrophic bearing damage. During the subsequent monthly functional test, the module's contact status monitoring detected that one relay had failed to reset properly. This early warning allowed for planned replacement during the outage, avoiding a situation where the protection system would have been partially inoperative. This proactive maintenance, enabled by the module's diagnostics, prevented a potential forced outage.

Related Product Combination Solutions:

· •BENTLY NEVADA 3500/42M Vibration Monitor: The monitoring module that detects a dangerous condition and sends a trip command to the 3500/22M relay module.

· •BENTLY NEVADA 3500/92 Communication Gateway: Allows the status and health of the 3500/22M relays to be communicated to a DCS or asset management system.

· •Emergency Shutdown (ESD) Valve Solenoid: A typical final element that is directly driven by the contacts of the 3500/22M module.

· •BENTLY NEVADA 3500/15 Power Supply: Provides reliable power to the entire rack, including the 3500/22M module.

· •BENTLY NEVADA System 1® Software: Software that can trend relay operation counts and status, facilitating predictive maintenance for the 3500/22M modules.

Installation, Maintenance, and Full-Cycle Support:

Installation of the BENTLY NEVADA 3500/22M 138607-02 involves inserting it into an available slot in the 3500 series rack. The output contacts are wired to the field devices (e.g., solenoid valves, trip coils) using appropriately sized cables. Configuration within the 3500 framework is necessary to assign which monitoring points will activate which relay channels.Routine maintenance is critical and includes regular functional testing (often monthly) to verify that the relays operate correctly and that the contacts are in good condition. The module's status feedback provides a means for automated testing. We provide comprehensive lifecycle support, from initial system design and safety loop verification to 24/7 technical support and a guaranteed supply of genuine BENTLY NEVADA 3500/22M 138607-02 modules.