Product Details
The Bently Nevada 3500/42M Proximitor Seismic Monitor is a four-channel machinery protection system designed to accept inputs from proximity and seismic transducers. Model 140734-02 represents the core monitor module combined with the 140471-01 I/O module featuring internal terminations. It conditions raw transducer signals into critical vibration and position measurements, continuously evaluating parameters against user-programmable alarm setpoints to safeguard rotating equipment.
Core Architecture and Channel Processing
The module operates within a standard Bently Nevada 3500 rack, processing up to four channels of transducer input simultaneously. Channels are configured in pairs, allowing users to execute distinct monitoring strategies—such as radial vibration, thrust position, or velocity tracking—across separate channel groups.
Input signals undergo precise filtering, including configurable high-pass, low-pass, and vector filtering options, to isolate true mechanical vibration from background noise or electrical runout. Each channel provides dedicated buffered transducer outputs on the front panel via short-circuit-protected coaxial connectors.
Alarm Management and Signal Integration
The monitor evaluates real-time data against software-configured Alert and Danger thresholds to drive relay modules and protect critical assets. In addition to discrete alarm outputs, the unit supplies proportional +4 to +20 mA current values for each channel to interface directly with external control or data recording systems.
The accompanying 140471-01 I/O module handles field wiring termination internally, streamlining installation within industrial instrument cabinets and supporting robust signal integrity under harsh operating conditions.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 140734-02 (Monitor Module) + 140471-01 (I/O Module) |
| Brand | Bently Nevada |
| Series | 3500/42M Proximitor Seismic Monitor |
| Number of Channels | 4 channels |
| Supported Inputs | Proximity, velocity, or acceleration transducers |
| Standard Input Impedance | 10 kΩ (Proximitor and acceleration inputs) |
| Transducer Power Supply | -24 Vdc |
| Recorder Output | +4 to +20 mA proportional to full scale |
| Current Output Load Resistance | 0 to 600 Ω (0 to +12 Vdc range across load) |
| Typical Power Consumption | 7.7 W |
| I/O Termination Type | Internal terminations |
Frequently Asked Questions
Q: What transducer types are supported by the 140734-02 monitor configuration?
A: The monitor accepts inputs from proximity, velocity, or acceleration transducers depending on software configuration and the paired I/O module type.
Q: How do the recorder outputs handle short circuits in external loops?
A: Monitor operation remains completely unaffected by short circuits on the individual +4 to +20 mA recorder outputs due to built-in circuit protection.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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