Description
Bently Nevada 3500/70M-03-00 Recip Impulse Velocity Monitor Technical Profile
1. Product Details
- Core Identity: A 4-channel dedicated reciprocating machinery monitoring unit in the Bently Nevada 3500 Machinery Protection System, consisting of the main processing board 176449-09 and the matching I/O termination module 135489-01.
- Physical & Commercial Specs: Dimensions 2.5×25×24 cm, net weight 0.82 kg, manufactured in the USA, supplied as brand new original factory unit with 12-month warranty, in stock for 2-3 working days delivery.
- Electrical Specs: Designed for industrial-grade continuous operation, supporting signal input from standard Bently Nevada seismic transducers, with no additional external signal conditioning devices required.
2. Primary Applications
- Reciprocating Compressor Protection: Purpose-built for crankcase and crosshead vibration monitoring on large reciprocating compressors in refineries, natural gas transmission stations and petrochemical plants.
- Expanded Industrial Scenarios: Deployed on reciprocating engines, high-pressure process pumps and other positive-displacement rotating equipment to capture early-stage mechanical faults including loose fasteners, piston slap and abnormal crosshead friction.
- System Compatibility: Fully compliant with API 670 machinery protection standards, seamlessly integrated into any standard 3500 series rack, and natively connected to the System 1 condition analysis platform for centralized data management.
3. Related Series Models
- Core Configuration Variants: 3500/70M-00-00 (basic velocity monitoring), 3500/70M-01-00 (standard acceleration monitoring), 3500/70M-02-00 (low-frequency reciprocating dedicated), 3500/70M-03-00 (full-function 4-channel multi-mode version), 3500/70M-04-00 (ATEX hazardous area certified version).
- I/O Terminal Variants: Non-isolated internal termination, isolated external termination, intrinsically safe barrier termination for different field wiring and explosive zone deployment requirements.
- Cross-System Compatible Models: Interoperable with 3500/42M, 3500/60 and other 3500 series monitoring modules to form a full-coverage machinery protection solution for combined reciprocating and rotating unit trains.
4. Core Features
- 4 Independent Full-Function Channels: Each channel operates without mutual interference, supporting simultaneous monitoring of 4 different key measurement points on one reciprocating unit.
- 4 Selectable Working Modes: Every channel is fully programmable via 3500 Rack Configuration Software, supporting Impulse Acceleration, Acceleration 2, Recip Velocity and Low Frequency Recip Velocity modes to match different fault detection demands.
- High-Reliability Industrial Design: Hot-swappable under powered status, with front-panel LED status indicators for real-time module health visibility, supporting continuous 7×24h operation in harsh industrial environments.
5. Main Functions
- Signal Conditioning & Measurement: Accepts raw input from seismic transducers, conditions and processes vibration signals to deliver high-precision reciprocating machinery vibration data.
- Customizable Protection Logic: Compares real-time measured parameters against user-defined alert and danger setpoints, triggering corresponding system alarms or interlock trips to prevent catastrophic equipment damage.
- Data Transmission & Analysis: Sends full vibration waveform and trend data to the 3500 system host, providing operation and maintenance teams with actionable machinery health information for predictive maintenance and fault diagnosis.
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