Bently Nevada 79482-01 Dual Thrust Position Monitor

The 79482-01 dual thrust position monitor from Bently Nevada measures axial shaft movement inside steam and gas turbine systems. Plant engineers install this monitor whenever rotor thrust clearance demands continuous, precise surveillance. Consequently, it protects turbine bearings from damage by catching abnormal axial displacement early.

Key Technical Specifications

The table below outlines the main physical and electrical parameters of the 79482-01 monitor.

Parameter	Specification
Product Type	Dual Thrust Position Monitor
Compatibility	Bently Nevada 3300 / 3500 series systems
Dimensions	Approximately 254 mm x 127 mm x 51 mm
Weight	Approximately 1.1 kg (2.4 lbs)
Mounting	Panel or rack frame mounting base
Interface	Backplane bus and transducer input terminals
Connectors	Multi-pin connector and terminal blocks
Component Count	Multiple signal processors, drivers, and logic circuits
Energy Storage	On-board capacitors for signal and voltage stabilization
Input Channels	Two independent thrust position channels
Measurement Range	Configurable axial displacement range
Operating Temperature	0 degrees C to 60 degrees C
Storage Temperature	-40 degrees C to 85 degrees C
Humidity	5% to 95% non-condensing

Functional Overview

This monitor reads proximity probe signals and converts them into axial displacement values. Therefore, it tracks rotor thrust position in real time across both channels. The 79482-01 also compares readings against alarm and trip setpoints for machine protection. Meanwhile, its onboard energy storage stabilizes signals against transient electrical noise.

Installation and Handling Notes

Always verify probe gap voltage before connecting transducers to the 79482-01. In addition, check that channel addressing matches your protection configuration. Tighten terminal screws evenly to prevent intermittent connections. Finally, test alarm and trip setpoints during commissioning.