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Bently Nevada 3500/64M 140734-05 Dynamic Pressure Monitor

Bently Nevada 3500/64M 140734-05 Dynamic Pressure Monitor

Product Description

The 3500/64M (incorporating part number 140734-05) is a specialized four-channel monitoring module for the Bently Nevada 3500 Machinery Protection System. This high-speed digital signal processing unit is engineered...

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SKU: 3500/64M 140734-05
Vendor: Bently Nevada
Category: Dynamic Pressure Monitor
Related Series:

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Product Description

The 3500/64M (incorporating part number 140734-05) is a specialized four-channel monitoring module for the Bently Nevada 3500 Machinery Protection System. This high-speed digital signal processing unit is engineered specifically to monitor pressure pulsations in gas turbines and centrifugal compressors. By analyzing dynamic pressure fluctuations, it identifies combustion instabilities and aerodynamic surge conditions that can lead to catastrophic hardware failure or shortened component life.

Technical Specifications

Specification Details
Channel Capacity 4 independent dynamic pressure input channels
Measurement Types Dynamic Pressure (pulsation), Static Pressure (bias), and Peak-to-Peak values
Signal Resolution 24-bit A/D conversion for ultra-high fidelity waveform analysis
Transducer Compatibility Supports high-sensitivity piezoelectric pressure transducers and Proximitor sensors
Frequency Response Configurable high-pass and low-pass filtering (typically 5 Hz to 20 kHz)
Alarm Logic Integrated Alert and Danger setpoints with user-defined time delays
System Interface Seamlessly communicates with the 3500/22M Transient Data Interface
Physical Dimensions 2.2 cm x 12.4 cm x 12.6 cm
Net Weight 0.8 kg

Operational Application

The 140734-05 is critical for Lean Pre-Mixed (LPM) combustion systems where flame stability is a constant concern. It detects "combustion humming" or acoustic resonances within the turbine liner. When pressure levels exceed safe limits, the module initiates a high-speed protective trip via the rack’s relay modules, shielding the turbine from vibration-induced cracks and thermal stress.

Engineering FAQ

Q: Does the 3500/64M provide raw buffered outputs for external analysis?
A: Yes, the module includes buffered transducer outputs accessible via the front panel BNC connectors, allowing engineers to connect external oscilloscopes or dynamic signal analyzers without interrupting the protective monitoring functions.