BENTLY 3500/04-01

Description

Detailed parameter table

BENTLY 3500/50M

Product introduction

The Bently Nevada 3500/04-01 is a specialized system monitoring module, designed to oversee the health and performance of the entire 3500 series machinery protection system. Unlike module-specific monitors such as the 3500/33-01-00, which focus on machinery parameters, the 3500/04-01 acts as a “system guardian,” tracking rack-level metrics—including power supply status, backplane communication integrity, and module faults—to ensure the entire monitoring infrastructure remains operational.

As a critical component of the 3500 ecosystem, it communicates seamlessly with the 3500/50M operator interface module, providing real-time system status updates to operators. It also works in tandem with the 3500/05-01-02-00-00-00 rack interface module to monitor data transmission paths, ensuring that critical information from sensors like the 85515-02 reaches upstream systems without interruption.

Powered by reliable supplies such as the 106M1079-01 or 3500/15 127610-01, the 3500/04-01 is built to withstand the same harsh industrial conditions as other 3500 series components. Its ability to detect system-level issues—before they impact machinery monitoring—makes it indispensable for maintaining the integrity of protection systems in power plants, refineries, and other safety-critical facilities.

Core advantages and technical highlights

Comprehensive system oversight: The 3500/04-01 monitors up to 16 critical system parameters, including 3500/15 127610-01 power supply voltage, backplane communication latency, and individual module health statuses. This holistic view ensures that potential issues—such as a failing power supply or a loose backplane connection—are detected before they cause data loss or monitoring gaps, a capability beyond the scope of machinery-focused modules like the 3500/33-01-00.

Proactive fault detection: Equipped with 3 programmable alarm levels, the module can alert operators to escalating issues via the 3500/50M interface. For example, it can trigger a “Warning” alarm when a power supply operates at 90% capacity, a “Danger” alarm during intermittent backplane communication, and a “Critical” alarm if a monitoring module fails. This tiered approach enables preventive action, reducing the risk of unplanned shutdowns.

Secure event logging: The 3500/04-01 stores up to 10,000 system events in non-volatile memory, including timestamps for power fluctuations, communication interruptions, and module resets. This log is accessible via the 3500/50M keypad or 170180-01-00 software, providing valuable diagnostic data for post-incident analysis. Unlike transient data from sensors, these logs persist through power cycles, ensuring no critical system events are lost.

Seamless ecosystem integration: The module communicates with every component in the 3500 rack via the backplane, enabling it to track the status of the 3500/05-01-02-00-00-00’s optical fiber link, the 3500/62’s relay outputs, and even the 3500/50M’s display functionality. This integration ensures that no single point of failure goes undetected, making it a cornerstone of system reliability.

Typical application scenarios

In a nuclear power plant’s turbine control system, the 3500/04-01 continuously monitors the 3500 rack power supplies (3500/15 127610-01) and backplane communication. During a minor voltage fluctuation, it logs the event and triggers a “Warning” alarm on the 3500/50M, prompting operators to inspect the power source before a failure occurs. If a communication fault between the 3500/05-01-02-00-00-00 and upstream systems is detected, it activates a “Danger” alarm, ensuring technicians address the issue before data transmission is lost.

At an offshore oil platform, the 3500/04-01 oversees a redundant 3500 system monitoring a gas compressor. When one of the 85515-02 vibration transmitters experiences a wiring fault, the module detects the loss of signal at the 3500/42M 140734-02 and logs the fault in its event history. This information is displayed on the 3500/50M, allowing maintenance crews to replace the faulty cable during a scheduled window—avoiding unplanned downtime in the harsh marine environment.

In a chemical plant’s reactor complex, the 3500/04-01 acts as a safety net for the entire monitoring system. During a sudden temperature spike in the control room, it detects that the 3500/50M’s display has become unresponsive and triggers a “Critical” alarm via its relay output, which activates an external siren. This alert ensures operators are aware of the interface failure and can use 170180-01-00 software to monitor the system remotely until the 3500/50M is repaired.

BENTLY 3500/33-01-00

Related model recommendations

3500/50M: Operator interface module that displays system status and alarms from the 3500/04-01.

3500/05-01-02-00-00-00: Rack interface module whose communication links are monitored by the 3500/04-01.

3500/15 127610-01: Redundant power supply whose voltage and load are tracked by the 3500/04-01.

106M1079-01: Power supply unit whose operational status is monitored by the 3500/04-01 in smaller systems.

170180-01-00 software: Tool for configuring alarm thresholds and accessing event logs from the 3500/04-01.

3500/62: Digital I/O module that can be triggered by the 3500/04-01’s critical alarm relay.

3500/33-01-00: Vibration monitoring module whose health status is tracked by the 3500/04-01.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the 3500/04-01 in a single slot of the 3500 series rack, ensuring the system is powered off (via 106M1079-01 or 3500/15 127610-01) during installation. Secure the module with screws torqued to 0.6 Nm, verifying proper alignment with the backplane connector to ensure communication with other components. Connect the alarm relay output to external devices (e.g., sirens, PLCs) using 18-gauge shielded wire, if required.

Commissioning steps: Power on the system and confirm the 3500/04-01 initializes correctly (indicated by a steady power LED). Use 170180-01-00 software to configure alarm thresholds—for example, setting a “Warning” for power supply voltage below 22V DC and “Critical” for voltage below 20V DC. Test fault detection by simulating a backplane disconnect (e.g., removing a module briefly) and verifying the alarm appears on the 3500/50M. Sync the module’s clock with the 3500/05-01-02-00-00-00 to ensure accurate event timestamps.

Maintenance suggestions: Inspect the 3500/04-01 quarterly to ensure the alarm relay connections remain secure. Download event logs monthly via 170180-01-00 software to review system health trends, such as recurring power fluctuations. Test alarm functionality semi-annually by triggering each alarm level and confirming the 3500/50M displays the correct alert. If the module fails to detect faults or log events, replace it during a scheduled shutdown—hot-swapping is supported but should be done with caution to avoid transient data loss.

Service and guarantee commitment

The 3500/04-01 is backed by a 24-month warranty covering manufacturing defects, including failure to detect system faults, alarm relay malfunctions, or event log corruption. During this period, Bently Nevada provides free repair or replacement, along with technical support for configuring alarm thresholds and integrating with the 3500/50M and power supplies like the 106M1079-01.

Our global service team offers 24/7 assistance for troubleshooting system monitoring issues, with remote diagnostics available via the 3500/05-01-02-00-00-00 to verify event logs and alarm settings. Extended warranty options (up to 4 years) include annual performance validation to ensure the module accurately tracks all system parameters. Built on Bently Nevada’s commitment to system reliability, the 3500/04-01 is guaranteed to provide robust oversight of 3500 series protection systems, ensuring operators stay ahead of potential failures.

Comprehensive system oversight: The 3500/04-01 monitors up to 16 critical system parameters, including 3500/15 127610-01 power supply voltage, backplane communication latency, and individual module health statuses. This holistic view ensures that potential issues—such as a failing power supply or a loose backplane connection—are detected before they cause data loss or monitoring gaps, a capability beyond the scope of machinery-focused modules like the 3500/33-01-00.

Proactive fault detection: Equipped with 3 programmable alarm levels, the module can alert operators to escalating issues via the 3500/50M interface. For example, it can trigger a “Warning” alarm when a power supply operates at 90% capacity, a “Danger” alarm during intermittent backplane communication, and a “Critical” alarm if a monitoring module fails. This tiered approach enables preventive action, reducing the risk of unplanned shutdowns.

Secure event logging: The 3500/04-01 stores up to 10,000 system events in non-volatile memory, including timestamps for power fluctuations, communication interruptions, and module resets. This log is accessible via the 3500/50M keypad or 170180-01-00 software, providing valuable diagnostic data for post-incident analysis. Unlike transient data from sensors, these logs persist through power cycles, ensuring no critical system events are lost.

Seamless ecosystem integration: The module communicates with every component in the 3500 rack via the backplane, enabling it to track the status of the 3500/05-01-02-00-00-00’s optical fiber link, the 3500/62’s relay outputs, and even the 3500/50M’s display functionality. This integration ensures that no single point of failure goes undetected, making it a cornerstone of system reliability.