Product Introduction: 3500/42M 135489-03
The 3500/42M 135489-03 is a specific hardware version of the 4-Channel Analog Monitor module from the Bently Nevada 3500 Machinery Protection System. This module serves as a highly versatile and critical interface for monitoring a wide range of process and health parameters. It is designed to accept analog signals from various transducers, such as RTDs for temperature, 4-20 mA sensors for pressure or flow, and thermocouples. By converting these signals into standardized data within the 3500 framework, it provides continuous monitoring and triggers vital alerts and danger alarms based on user-defined setpoints, ensuring comprehensive protection for auxiliary systems.
Technical Parameters
The key technical specifications for the 3500/42M 135489-03 module are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 3500/42M 135489-03 |
| System | Bently Nevada 3500 |
| Module Type | 4-Channel Analog Monitor |
| Dimensions (H x W x D) | 190 mm x 55 mm x 120 mm (Standard 3500 Rack Slot) |
| Weight | 0.47 kg |
| Input Channels | 4 independent, individually configurable channels |
| Input Types | Accepts: • 4-20 mA (loop powered) • RTDs (Pt100) • Thermocouples (J, K, T, etc.) • Voltage (±1V, ±10V) |
| Accuracy | ±0.1% of reading (for 4-20 mA inputs) |
| Update Rate | 10 samples per second per channel |
| Alarm Setpoints | Two fully-configurable levels per channel (Alert and Danger) |
| Outputs | 4-20 mA proportional output for each channel (optional) |
| Power Supply | Powered by the 3500 Rack; +24 VDC from the rack's power supply |
| Operating Temperature | -20°C to +65°C |
Application Scenarios
The 3500/42M module is indispensable for monitoring critical process and machine health parameters that are not directly related to vibration, providing a holistic protection strategy.
Bearing Temperature Monitoring:
Continuously monitors bearing metal temperatures via RTD sensors on turbines, compressors, and large pumps to prevent overheating and catastrophic bearing failure.
Lube Oil System Supervision:
Monitors lube oil temperature and pressure to ensure proper lubrication is maintained, triggering alarms if parameters deviate from safe operating limits.
Motor Protection:
Tracks stator winding and bearing temperatures in large electric motors using embedded RTDs, providing early warning of insulation breakdown or lubrication issues.
Process Condition Monitoring:
Interfaces with 4-20 mA transmitters to monitor critical process variables such as discharge pressure, differential pressure across filters, and cooling water flow, ensuring the machine's auxiliary systems are functioning correctly.
Gas Turbine Support Systems:
Monitors exhaust gas temperatures (via thermocouples) and fuel gas pressure, providing essential data for performance calculation and protection against unsafe operating conditions
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7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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