Bently Nevada 3500/77M 176449-07 Pressure Monitor

Product Introduction

The Bently Nevada 3500/77M 176449-07 is a monitoring module (Pressure Monitor), engineered for continuous protection of rotating machinery. TenBN supplies this genuine Bently Nevada component with full documentation and ready stock for plants running condition monitoring programs on critical equipment.

Technical Parameters

• Model: 3500/77M 176449-07
• Product Type: Pressure Monitor
• Product Series: 3500
• Origin: U.S.A Inputs Signal
• Signal: Accepts 1 to 4 channels of Bently Nevada approved positive voltage 3rd-party pressure transducers (psia)
• Frequency Response: 0 to 5.5 kHz on all configured pressure channels
• Pressure Accuracy: Within ± 0.5% of pressure transducer full-range (9.5 Volts: From +0.5 to +10.0 Volts) @ +25°C (77º F)
• Cylinder Pressure: Discharge Pressure, Suction Pressure, Maximum Pressure, Minimum Pressure, Compression Ratio, Peak Rod Compression, Peak Rod Tension, Degree of Rod Reversal
• Internal/External Termination Cylinder Pressure I/O: 50 kΩ
• Power Consumption: 7.8 Watts with transducer supplies at full load
• OK LED: Indicates when the 3500/77M is operating properly
• TX/RX LED: Indicates when the 3500/77M is communicating with other modules in the 3500 rack
• Bypass LED: Indicates when the 3500/77M is in Bypass Mode
• Buffered Transducer Outputs: The front of each monitor has one coaxial connector for each channel. Each connector is short-circuit protected

Parameter Analysis

The ordering string of the 3500/77M 176449-07 encodes its physical and electrical configuration, so every digit should be checked against the machine drawing before substitution. The unit is rated for operation from -40°C to +85°C (-40°F to +185°F).

Monitoring modules form the decision layer of the protection system, turning transducer signals into alarms and trips; keeping channels on consistent part numbers preserves documented measurement accuracy.

Application Scenarios

This module is part of the monitoring rack that protects turbines, compressors, pumps, and other rotating machinery, processing transducer signals into alarms, trip outputs, and data for predictive maintenance programs.

Installation Guide

Insert the module into its designated rack slot, confirm the option string and position match the system configuration, wire the field terminals per the machine drawing, and verify channel alarms and trips before returning the protection system to service.

Compatibility

This component belongs to the 3500 series monitoring rack and is engineered to work with the associated probes, extension cables, Proximitors, and monitoring hardware of the same system. Bently Nevada components sharing the same part number are fully interchangeable, so a stocked spare can be fitted without re-engineering the measurement loop. TenBN can supply the complete chain under consistent part numbers.

Maintenance Advice

Review channel status, alarm settings, and module indicators during routine maintenance windows, and confirm field wiring integrity at the terminals. Keep the unit within its -40°C to +85°C (-40°F to +185°F) operating envelope in service and storage.

Procurement Advice

Confirm the complete part number against your machine’s bill of materials before ordering, since each option digit changes the mechanical or electrical fit. TenBN stocks genuine Bently Nevada components and provides the official service documentation for this model. For inventory, pricing, and lead time on the 3500/77M 176449-07, contact [email protected].

Frequently Asked Questions

What is the operating temperature range?

The unit is rated from -40°C to +85°C (-40°F to +185°F), covering the temperature extremes typical of turbomachinery installations.

Can this spare be interchanged with existing components?

Bently Nevada components sharing the same part number are fully interchangeable, so this spare can replace an existing unit without recalibrating the loop when the complete part number matches.

How do I confirm the right part number?

Check every option digit against the machine bill of materials, then contact [email protected] with the full string; the TenBN team will confirm fit, stock, and documentation.