1. Core Technical Specifications

Module Type：3500/42M 4-Channel Proximitor & Seismic Dual-Function Monitor Module

System Compatibility：Bently Nevada 3500 series machinery protection rack system

Channel Configuration：4 fully independent synchronous monitoring channels

Supported Sensors：Proximitor eddy-current probes, velocity sensors, acceleration seismic transducers

Monitoring Parameters：Shaft radial vibration, axial thrust position, casing seismic vibration, shaft gap displacement

Measurement Accuracy：±0.33% full-scale typical precision, maximum ±1% full-scale error

Frequency Response：Dual filter modes, direct filter 1.2 Hz / gap filter 0.41 Hz (-3dB)

Input Impedance：10 kΩ standard industrial signal input impedance

Power Consumption：7.7W typical low power consumption for continuous operation

Alarm Logic：Custom warning, danger trip and sensor fault diagnostic thresholds

Structure Specification：Full-height front module + full-height rear I/O module dual-slot structure

Operating Temperature：-30℃ ~ +65℃ industrial working range

Storage Temperature：-40℃ ~ +85℃

Certification：Class I Div 2, CSA, ATEX, IECEx full hazardous area compliance

2. Official Ordering Selection & Front/Rear Board Matching

Standard Ordering Model：3500/42M-AA-BB-CC

AA Code: Monitoring Mode Configuration

BB Code: Filter & Speed Adaptation Grade

CC Code: Safety Certification Grade

Front & Rear Board Official Matching List

3. Core Product Advantages

The 3500/42M stands out in the 3500 monitoring module lineup with its unique dual-proximity and seismic integrated monitoring design, solving the pain point of separate deployment of vibration and displacement acquisition modules in traditional TSI systems. The four-channel independent design supports flexible mixed access of displacement and vibration sensors, allowing engineers to configure different monitoring parameters for each channel according to on-site equipment needs, greatly improving rack slot utilization and reducing overall system investment costs. Equipped with dual adaptive filter algorithms, the module automatically switches filter modes according to equipment operating speed, effectively filtering environmental low-frequency interference while retaining valid mechanical fault characteristic signals. With ultra-low full-scale measurement error and stable long-term operational performance, it avoids frequent data drift and reduces routine calibration workload. All channels adopt isolated circuit design to prevent signal crosstalk, and the industrial-grade hardware structure adapts to high-temperature, high-vibration and strong-electromagnetic interference industrial environments, ensuring continuous and reliable equipment condition monitoring.

4. Industrial Application Scenarios

The 3500/42M dual-function monitoring module is widely applied in high-standard rotating machinery protection systems across power, petrochemical, energy and metallurgical industries, serving as a core universal monitoring unit for main and auxiliary equipment. In thermal power generation plants, it undertakes synchronous monitoring of steam turbine shaft vibration, thrust displacement and casing seismic vibration, providing comprehensive data support for turbine thermal state and mechanical health judgment. In oil and gas fields and chemical enterprises, the module monitors high-speed reciprocating compressors, centrifugal compressors and pipeline pressurization equipment, capturing subtle mechanical abnormalities in advance to avoid shutdown failures caused by component wear. It is also commonly used for condition monitoring of large industrial fans, water pumps and transmission equipment clusters, realizing integrated management of equipment displacement and vibration status, and improving the overall safety and stability of industrial production lines.