Product Details
The 3500/72-01-00 Recip Rod Position Monitor is a four-channel monitoring module designed for the Bently Nevada 3500 Series Machinery Protection System. It processes input signals from proximity probes to evaluate piston rod behavior, rod drop, and hyper-compressor parameters in compliance with API 618 requirements. This specific catalog configuration features an I/O module with internal terminations and operates without hazardous area agency approvals.
Signal Processing and Measurement Functions
The module accepts inputs from up to four proximity transducers, with channels programmed in pairs to execute distinct or identical measurement tasks. It evaluates parameters such as peak-to-peak amplitude, position magnitude, rod position angle, and position crank angle for reciprocating compressors. Front-panel coaxial connectors provide short-circuit-protected, buffered transducer outputs for direct signal diagnosis.
Alarm Configuration and System Architecture
Operators establish programmable alert and danger setpoints via the 3500 Rack Configuration Software to ensure automated protection against mechanical faults. The unit occupies a single full-height front slot, pairing with a rear I/O module that utilizes internal terminations. The -01 suffix designates the internal termination I/O layout, while the -00 suffix indicates the omission of hazardous location agency approvals.
| Parameter | Specification |
|---|---|
| Model | 3500/72-01-00 |
| Brand | Bently Nevada |
| Product Type | Recip Rod Position Monitor |
| Number of Channels | 4 channels |
| Transducer Inputs | Proximity probes |
| I/O Module Type | Internal terminations [-01] |
| Agency Approval | None [-00] |
| Power Consumption | 7.7 W nominal |
| Operating Temperature | -30 degC to +65 degC |
| Storage Temperature | -40 degC to +85 degC |
| Monitor Module Dimensions | 241.3 mm x 24.4 mm x 241.8 mm |
| Monitor Module Weight | 0.91 kg |
Frequently Asked Questions
Q: What primary parameters does the 3500/72-01-00 monitor?
A: It measures piston rod position, rod drop, and hyper-compressor variables to protect reciprocating compressors according to API 618 standards.
Q: How are the measurement channels organized?
A: The four channels are programmed in pairs, allowing channels 1-2 to perform one measurement function while channels 3-4 perform the same or a separate function.
Q: Does this specific configuration include hazardous area certifications?
A: No, the -00 suffix indicates that the module is supplied without specialized hazardous location agency approvals.
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.





























