Bently Nevada 286566-02 Tachometer Modules

Bently Nevada 3500/50M 286566-02 2-Channel Tachometer Module

Bently Nevada 3500/50M 286566-02 2-Channel Tachometer Module

Availability: 10 left in stock

Bently Nevada 3500/50M 286566-02 Tachometer Module Configured for continuous shaft speed monitoring and rotor acceleration tracking in Bently Nevada 3500...

SKU: 3500/50M 286566-02

Manufacturer: Bently Nevada
Product No.: 3500/50M 286566-02
Product Type: Tachometer Modules
Product Origin: Switzerland
Payment:T/T, Western Union
Weight: 1100g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Bently Nevada 3500/50M 286566-02 Tachometer Module

Configured for continuous shaft speed monitoring and rotor acceleration tracking in Bently Nevada 3500 Machinery Protection System platforms, the Bently Nevada 286566-02 (3500/50M Tachometer Module) provides direct physical/electrical execution. This 2-channel main module accepts transducer voltage inputs ranging from +10.0 V to -24.0 V from non-contacting Proximitor sensors or passive magnetic pickups. It calculates rotational speed (RPM), acceleration trends, zero-speed states, and reverse rotation events while routing conditioned Keyphasor timing pulses across the backplane to drive phase-locked data acquisition for adjacent vibration monitors.

Hardware Specifications

Parameter	Specification
Model	3500/50M (286566-02)
Brand	Bently Nevada
Origin	USA
Weight	1.1 kg
Dimensions	241 mm x 24.4 mm x 242 mm
Operating Temp	-30 to +65 deg C
Power Consumption	5.8 W typical
Channel Count	2 independent tachometer channels
Input Signal Range	+10.0 V to -24.0 V
Input Impedance	20 kOhm standard
Measurement Functions	Shaft speed (RPM), rotor acceleration, reverse rotation
Alarm Functions	Over/under speed, speed band, zero speed, reverse rotation
Backplane Output	Conditioned Keyphasor signals to rack monitors
Compliance	API 670 machinery protection standard compliant
Storage Temp	-40 to +85 deg C

Rotor Dynamics and Gap Voltage Validation Parameters

The 3500/50M 286566-02 Tachometer Module processes rapid pulses generated by passing gear teeth or keyways without disrupting adjacent TSI modules. When utilizing eddy-current proximity probes for speed sensing, standard probe scaling (200 mV/mil or 7.87 V/mm) applies to the input circuit while technicians monitor target gap voltage validation (-10 VDC nominal) to confirm physical probe placement. Integrated cross-talk suppression logic preserves pulse timing precision across wide frequency spans, allowing secondary vibration monitors to calculate exact 1X/2X phase angles, track unbalance vectors, and evaluate rotor dynamics during startup and coast-down conditions.

Frequently Asked Questions

Q: How does the 3500/50M 286566-02 module determine reverse rotation on a machine train?

A: By connecting two proximity transducers positioned with a physical phase offset over a multi-tooth gear, the internal processor measures the pulse sequence timing between channel 1 and channel 2 to detect reverse shaft motion.

Q: Can the 3500/50M 286566-02 be hot-swapped while the 3500 rack is powered?

A: Yes, the main module supports hot-swapping under powered rack conditions, provided personnel follow proper static dissipation procedures during removal and insertion into the chassis slot.

Q: Does the 286566-02 main module require a companion rear I/O card for field wiring?

A: Yes, the front module must pair with a compatible 3500/50M I/O module installed at the rear of the rack to land physical probe wiring and provide terminal interfaces.

Field Installation Guidelines

When mounting and connecting the Bently Nevada 3500/50M 286566-02 module, adhere to the following installation sequence:

Insert the main tachometer module into the designated full-height rack slot, seating the backplane edge connector firmly before securing the top and bottom captive screws.
Install the corresponding 3500/50M I/O card into the rear of the same slot position to complete the signal pass-through circuit.
Land field cabling from Proximitor sensors or magnetic pickups onto the rear I/O terminal blocks, ensuring signal polarity matches channel labeling.
Route speed sensor cables in isolated raceways separated from high-voltage AC lines and variable frequency drive outputs to avoid induced noise.
Ground signal cable shields at the rack single-point ground connection in accordance with API 670 installation standards.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

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We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.