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Help CenterBently Nevada 3500/70M Monitoring Module
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Bently nevada 3500/70M Monitoring module
The 3500/70M is a Bentley Nevada 3500 series 4-channel reciprocating pulse velocity monitoring module. Its core function is vibration monitoring of the crankcase and crosshead of reciprocating compressors. It can receive acceleration/velocity sensor signals and output parameters such as pulse acceleration and reciprocating velocity. It is compatible with API 670/618 standards and is used for condition monitoring and safety protection of reciprocating compressors in industries such as petrochemicals, oil and gas, and power, supporting predictive maintenance and fault early warning
Core Parameters and Specifications
Item Parameters
Module Type 4-Channel Reciprocating Pulse Velocity Monitor (RIVM)
Input Type Accelerometer (10kΩ), Velocity Sensor (>1MΩ), Eddy Current Probe
Measurement Functions Pulse Acceleration, Acceleration 2, Reciprocating Velocity, Low-Frequency Reciprocating Velocity
Channel Configuration Paired configuration, up to 2 functions can be executed simultaneously (e.g., channels 1-2 measure pulse acceleration, channels 3-4 measure reciprocating velocity)
Alarm Settings Each static value can be set to Alert, any 2 can be set to Danger, supports relay output
Frequency Response Adaptable to low-frequency vibration of reciprocating machinery (0.1–1000Hz, depending on sensor type)
Power Supply ±15Vdc, compatible with 3500 system redundant power supply
Mounting 3500 rack slot mounting, dimensions 65×109×279mm, weight 0.64kg
Compliance Standards API 670 (4th) Mechanical Protection, API 618 Reciprocating Compressor Monitoring
Communication Compatible The 3500/22M TDI module supports software data interaction in System 1.
Email: xmxblynn@163.com
Phone: +86 18059884797
Core Functions
Multi-parameter Vibration Monitoring: Receives signals from acceleration/velocity sensors, processes and outputs key parameters such as pulse acceleration and reciprocating speed, covering crankcase and crosshead vibration characteristics, and capturing fault signals such as impacts and loosening.
Flexible Channel Configuration: 4 channels configured in pairs, capable of simultaneously monitoring 2 different vibration parameters, adapting to the multi-point measurement needs of complex reciprocating machinery.
Graded Alarm Protection: Supports Alert/Danger graded alarms, driving relay output upon triggering, linking to shutdown protection to prevent accidents such as bearing damage and component deformation.
Wide Operating Condition Adaptability: Withstands wide industrial temperature and vibration environments, compatible with various sensors, adapting to reciprocating compressor monitoring under different operating conditions.
System Integration and Diagnostics: Seamlessly integrates with the 3500 system and System 1 software, supporting data storage, trend analysis, fault diagnosis, and predictive maintenance.
Functions, Applications, and Typical Scenarios
Reciprocating Compressor Vibration Monitoring: Monitors crankcase and crosshead vibration, diagnosing faults such as piston knocking, bearing wear, and connecting rod loosening.
Safety Protection Linkage: Triggers alarms/shutdowns when parameters exceed thresholds, protecting core compressor components and reducing unplanned downtime losses.
Predictive Maintenance: Analyzes vibration trends to provide early warnings of potential faults, optimizing maintenance cycles and reducing maintenance costs.
Compliance Monitoring: Meets API 670/618 standards, providing data support for equipment auditing and fault tracing.
Data Integration and Analysis: Integrates with the 3500 system and System 1 software to achieve remote monitoring and vibration spectrum analysis, aiding in fault location.
Email: xmxblynn@163.com
Phone: +86 18059884797
Other related product models recommended:
3500/42 140471-01
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125720-01
1900/65A-01-01-03-00-01
1900/65A (167699-02)
3500/91 161204-01
3500/22M 138607-01
330180-90-05
3500/42M 128229-01
330180-51-CN
330180-91-00
3500/32M 149986-02
3500/05-01-02-00-00-01
3500/91 161216-01
128229-01
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