Bently Nevada 128240-01 Prox/Seismic I/O Module for Machinery Protection

Description

Product Description

• Brand: Bently Nevada
• Model: 128240-01
• Series: 3500 Machinery Protection System
• This Prox/Seismic I/O Module collects critical machine condition signals.
• It supports proximity, velocity, and acceleration sensors.
• The module ensures stable and repeatable signal conditioning.
• It fits high-demand rotating equipment protection systems.
• Design supports long-term industrial operation.

Core Capabilities

• 1 to 4 sensor inputs per module.
• Supports vibration, position, and motion measurements.
• High signal accuracy for early fault detection.
• Short-circuit protected transducer outputs.
• Stable -24 Vdc sensor power supply.

Technical Specifications

• Power Consumption: 7.7 W typical
• Input Impedance: 10 kΩ for proximity and acceleration
• Output Impedance: 550 Ω per channel
• Recorder Output: 4–20 mA, full-scale proportional
• Load Resistance: 0–600 Ω
• Voltage Compliance: 0 to +12 Vdc

Measurement Ranges and Sensitivity

• Radial Vibration: 3.94 or 7.87 mV/μm
• Thrust Position: Same as radial vibration
• Eccentricity: Same as radial vibration
• Differential Expansion: 0.394 or 0.787 mV/μm
• REBAM: 40 or 80 mV/μm
• Acceleration: 10 mV per m/s²
• Velocity: 4 to 20 mV per mm/s peak

Frequency Response and Signal Conditioning

• Direct Filter: Adjustable from 1–4000 Hz
• Not 1X Filter: 60 cpm to 15.8× running speed
• Accuracy: ±0.33% typical of full scale
• Maximum total error ±1% of full scale.

Physical Specifications

• Dimensions: 241.3 × 24.4 × 241.8 mm
• Weight: 0.34 kg
• Slim module design for dense rack layouts.

Environmental and Reliability Features

• Designed for continuous industrial operation.
• Strong resistance to electrical noise.
• Stable performance under vibration stress.
• Suitable for harsh machinery rooms.

Installation Guide

• Install directly into the 3500 rack slot.
• Connect sensors using coaxial connectors.
• Verify grounding before power-up.
• Follow Bently Nevada wiring standards.

Commissioning and Maintenance

• Fast channel setup through system configuration.
• No field calibration required after installation.
• Front access supports quick inspection.
• Reduces downtime during maintenance.

Compatibility

• Fully compatible with Bently Nevada 3500 Series.
• Works with proximity, velocity, and accelerometer probes.
• Integrates with protection and monitoring modules.

Certifications and Compliance

• Manufactured under strict quality standards.
• Complies with industrial monitoring requirements.
• Designed for critical asset protection systems.

Package Contents

• 1 × Bently Nevada 128240-01 I/O Module
• Protective industrial packaging
• Product identification label

Warranty and Shipping

• 12-month warranty from delivery date.
• Worldwide shipping via FedEx, UPS, or DHL.
• Professional export packaging included.

Typical Applications

• Steam and gas turbines.
• Compressors and large motors.
• Pumps in oil and gas facilities.
• Critical rotating machinery protection.

Diagnostic Capabilities

• Detects imbalance and misalignment.
• Identifies bearing wear early.
• Supports trend analysis and alarms.
• Improves asset availability.

FAQ

• Is this module suitable for retrofit projects?
• Yes. It fits existing 3500 racks without changes.
• Can one module handle different sensor types?
• Yes. Each channel supports proximity, velocity, or acceleration.
• How does this module help reduce failures?
• It provides early warnings through accurate vibration data.
• Is long-term stability proven in the field?
• Yes. It is widely used in continuous-duty plants.

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