3500/46M Hydro Monitor

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	3500/46M
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 3500/46M Hydro Monitor is a 4-channel instrument designed for hydro machinery automation, accepting inputs from proximity, seismic, dynamic pressure, and air gap sensors. Each channel conditions signals with 10 kΩ input for proximity/acceleration, 3.5 MΩ for Velomitor, and 50 kΩ multimode input, providing direct and gap accuracy of ±0.33% full-scale typical. The 3500/46M Hydro Monitor measures hydro radial vibration, air gap, velocity, acceleration, thrust, and stator end winding, with direct filter frequency response from 0.104 Hz to 500 Hz and NX notch rejection -50 dB. Using 3500 Rack Configuration Software, the 3500/46M Hydro Monitor programs alert and danger setpoints, alarm time delays from 1 to 400 s, and multimode channel configurations for automated condition monitoring. Consuming 7.7 W per channel and occupying one full-height front slot, the 3500/46M Hydro Monitor delivers real-time vibration, position, and dynamic pressure data to drive alarms and support predictive maintenance.

Applications

Measure Hydro Radial Vibration in Turbines
The 3500/46M Hydro Monitor combines shaft gap movement with NX amplitude to detect shear-pin failure. It monitors vibration from 0.104 Hz to 500 Hz with direct filter frequency response, notch 1X rejection up to 128× rotor speed, and minimum -50 dB, providing alarms when radial vibration exceeds set thresholds.

Track Air Gap in Rotating Machinery
The 3500/46M Hydro Monitor measures instantaneous, average, and minimum pole gaps using high-precision sensors with ±0.33% full-scale typical accuracy, enabling automated rotor clearance monitoring.

Monitor Hydro Velocity and Acceleration
The 3500/46M Hydro Monitor conditions Prox/Accel inputs at 10 kΩ, capturing velocity from 0.1875–1375 Hz and acceleration with bias low/high frequency response -3 dB at 0.02/0.07 Hz, providing precise motion data for automated control.

Measure Hydro Thrust
The 3500/46M Hydro Monitor records thrust with -3 dB direct filter at 1.2 Hz and gap filter at 0.41 Hz, providing accurate axial load measurements for turbine and pump adjustment.

Record Stator End Winding Pressure
The 3500/46M Hydro Monitor collects dynamic pressure data to detect end winding movement, delivering real-time monitoring and alarm triggers at power consumption of 7.7 W per channel.

Specifications

Competitive Advantage

Support Multiple Sensor Types in One Monitor
The 3500/46M Hydro Monitor integrates proximity, seismic, dynamic pressure, and air gap sensors in 4 channels, allowing monitoring across multiple parameters without extra rack modules.

Program Multimode Channel Alarms
The 3500/46M Hydro Monitor supports up to 8 alarm sets per channel, with configurable alert/danger setpoints and alarm delays from 1–400 s, automatically switching sets per machine mode using I/O contacts or software commands.

Deliver High Accuracy Measurement
The 3500/46M Hydro Monitor provides ±0.33% full-scale typical direct and gap accuracy, ±1% NX full-scale, and ±3% NX maximum, ensuring quantifiable readings for radial vibration, air gap, thrust, and velocity.

Provide Real-Time Frequency Response
The 3500/46M Hydro Monitor maintains direct filter response from 0.104–500 Hz, bias low/high velocity frequency response -3 dB at 0.02/0.07 Hz, and supports rotor speeds from 60–24,600 cpm for real-time automated monitoring.