PRODUCT INFORMATION
Product Overview
The Bently Nevada 3500/50 is a two-channel Tachometer Module designed for the 3500 series monitoring system. The unit measures shaft rotative speed, rotor acceleration, and rotor direction in rotating machinery applications. It accepts input signals from proximity probes and magnetic pickups across standard industrial monitoring points. Front LEDs provide operational status for unit health, rack communication, and channel bypass modes.
This module supplies conditioned Keyphasor signals directly to the 3500 system backplane. This routing eliminates the need for separate Keyphasor modules in standard rack configurations. Integrated peak hold functions record maximum speed, maximum reverse speed, and reverse rotation counts. Operators can configure alert thresholds and reset peak values using 3500 Rack Configuration Software.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Operating Temperature | -30°C to +65°C |
|---|
| Storage Temperature | -40°C to +85°C |
|---|
| Humidity | 95%, non-condensing |
|---|
| Country of Manufacture | United States (USA) |
|---|
TECHNICAL INFORMATION
Features
- Two independent input channels accepting proximity transducers or passive magnetic pickups.
- Integrated signal conditioning that routes Keyphasor signals directly to the 3500 backplane.
- Full scale speed measurement range up to 99,999 rpm with 20 kHz maximum input frequency.
- Rotor acceleration measurement with an accuracy rating of ±20 rpm/min.
- Programmable peak hold tracking for peak forward speed, peak reverse speed, and reverse rotation counts.
- Front-panel LED indicators displaying OK, TX/RX communication, and channel bypass states.
TECHNICAL INFORMATION
Applications
- Rotational speed and shaft acceleration monitoring on critical industrial turbomachinery.
- Reverse rotation detection on machines capable of bidirectional operation.
- Direct Keyphasor pulse distribution across 3500 rack monitor channels without dedicated Keyphasor hardware.
TECHNICAL INFORMATION
Connections / Interfaces
- Transducer input terminals for two proximity probes or passive magnetic sensors.
- Internal backplane interface for conditioned Keyphasor signal transmission and rack communication.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into any compatible open slot within a standard 3500 rack.
- Maintain ambient operating temperatures between -30°C and +65°C in the cabinet.
- Verify that non-condensing relative humidity remains at or below 95%.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure module channel parameters using the 3500 Rack Configuration Software.
- Define events per revolution between 0.0039 and 255 depending on target geometry.
- Set alert setpoints and peak hold tracking parameters according to machine operating limits.
TECHNICAL INFORMATION
Compatibility
- Operates within standard Bently Nevada 3500 system racks.
- Accepts inputs from standard proximity transducer systems and passive magnetic pickups.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSOperates within standard Bently Nevada 3500 system racks. Accepts inputs from standard proximity transducer systems and passive magnetic pickups.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What sensor types connect to the Bently Nevada 3500/50 module?
The module accepts inputs from proximity probes and passive magnetic pickups across both channels.
Does the 3500/50 module require a separate Keyphasor card?
No. The 3500/50 routes conditioned Keyphasor signals directly onto the 3500 backplane.
What is the typical reference price for the 3500/50 module?
Observed market reference pricing spans $470.25 to $1,791.00 depending on condition. These figures are indicative market reference pricing only and are not a final quotation.
