Product Introduction
The Bently Nevada 3500/42M-07-00 is a four-channel monitoring module that serves as a key component within the 3500 Machinery Protection System. It is specifically configured as an Absolute Vibration Monitor. The associated I/O module, 138708-01, is an Absolute Shaft Vibration I/O Module with Internal Terminations. This pair is designed to continuously monitor critical vibration parameters from various transducers (like proximity probes and accelerometers) on large rotating machinery. Its primary function is to protect equipment by providing alerts and shutdown signals before damaging conditions occur, ensuring operational reliability and safety.
Technical Parameters & Specifications
| Parameter Category | Specification |
|---|---|
| Model Number | 3500/42M-07-00 (Monitor), 138708-01 (I/O Module) |
| Description | 4-Channel Absolute Vibration Monitor with Internal Termination I/O Module |
| Number of Channels | 4 |
| Key Measurements | Absolute Shaft Vibration, Radial Vibration, Thrust Position, Eccentricity, Differential Expansion, Velocity, Acceleration |
| Power Consumption | Typical 7.7 Watts |
| Input Signals | Accepts signals from Eddy Current Proximity Transducers, Velocity Seismometers, and Accelerometers |
| Buffer Output | Per channel; Output Impedance: 550 Ω |
| Alarm Functions | User-programmable Alert and Danger setpoints for each channel |
| Dimensions (H x W x D) | Standard Frame: Approximately 4.0 x 8.4 x 9.2 in (102 x 213 x 234 mm) Small Frame: Approximately 4.0 x 6.3 x 9.2 in (102 x 160 x 234 mm) * |
| Weight | Approximately 2.2 lbs (1.0 kg) per module * |
* Note on Dimensions & Weight: The physical dimensions depend on whether the module is installed in a Standard or Small 3500 framework. The weight is an estimate based on a typical 3500 series monitor module. For precise values for a specific configuration, please consult the official Baker Hughes Bently Nevada product documentation.
Application Scenarios
This monitoring system is widely used for protecting critical assets in various industries, including:
Power Generation: Steam turbines, gas turbines, generators, and large pumps.
Oil & Gas: Centrifugal and reciprocating compressors, gas turbines, and pipeline pumps.
Chemical & Petrochemical: Process compressors, turbines, and fans.
Other Industries: Water treatment, metallurgy, and marine propulsion.
Primary Machinery: It is essential for monitoring vibrations on turbines, compressors, fans, motors, and gearboxes to prevent catastrophic failures.
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