133388-01 Bently Nevada 3500/53 Datasheet & Technical Manual

Bently Nevada 133388-01 3500/53 Overspeed Detection Module

Bently Nevada 133388-01 3500/53 Overspeed Detection Module

Availability: 10 left in stock

Bently Nevada 133388-01 3500/53 Overspeed Detection Module The Bently Nevada 133388-01, also cataloged as the 3500/53 Overspeed Detection Module, operates...

SKU: 3500/53 133388-01

Manufacturer: Bently Nevada
Product No.: 3500/53 133388-01
Product Type: Overspeed Detection Modules
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Bently Nevada 133388-01 3500/53 Overspeed Detection Module

The Bently Nevada 133388-01, also cataloged as the 3500/53 Overspeed Detection Module, operates as a dedicated hardware component for high-speed overspeed monitoring and emergency shutdown execution within Bently Nevada 3500 Series Machinery Protection System platforms. The module monitors tachometer inputs from proximity probes or magnetic pickups, converting raw frequency signals into discrete relay operations and analog metrics. This direct hardware interlock provides automatic machinery protection independent of software-driven distributed networks.

Hardware Specifications

Parameter	Specification
Model	133388-01
Brand	Bently Nevada
Origin	USA
Weight	0.45 kg
Dimensions	Standard 3500 Series Rack Slot
Operating Temp	-30 to +65 deg C
Power Consumption	8 Watts (Typical)
Input Signal Range	+10 V to -24 V
Input Impedance	20 kOhm
Transducer Power Supply	-24 V DC, 40 mA maximum
Analog Output	4-20 mA (Proportional to full-scale RPM)
Analog Resolution	0.3662 uA per bit
Analog Accuracy	+/-0.25% (Room temp); +/-0.7% (Full operating range)
Relay Type	Single-Pole Double-Throw (SPDT)
Relay Contact Ratings	5 A @ 24 V DC / 120 V AC
Maximum Relay Voltage	30 V DC / 250 V AC

Machinery Monitoring and TSI Features

The module integrates internal diagnostic layers dedicated to gap voltage validation, verifying that the connected proximity sensors maintain structural stability within standard -10 VDC targets. This constant validation preserves signal correctness across the entire tracking range before raw pulses are translated via established eddy-current probe scaling factors into digital RPM readouts. To handle complex rotor dynamics calculations cleanly, internal isolation circuitry exercises cross-talk suppression across the backplane bus, preventing auxiliary phase noise or noise from high-density adjacent channels from corrupting the emergency overspeed detection loop.

Frequently Asked Questions

Q: How does the module handle redundancy in voting configurations?

A: The module is designed to operate within a two-out-of-three (2oo3) hardware voting architecture when integrated across three redundant slots in the 3500 rack, executing shutdown commands while preventing nuisance trips.

Q: Can the 4-20 mA analog output drive external loops directly?

A: Yes, the integrated 4-20 mA analog output is proportional to the full-scale RPM values and interfaces directly with external distributed control systems or recorder loops for independent logging.

Field Installation Guidelines

Terminal Wiring Restrictions: Ensure all tachometer probe signal leads are connected securely to the rear terminal strip with clear polarization mapping.
Shield Ground Tracking: Connect the outer braided shield layer of the transducer extension cables strictly at the designated instrumentation ground point on the rear 3500 rack structure. Do not ground the shield at the field machine housing to avoid ground loop current interference.
Proximity Probe Clearances: When installing proximity probes for speed sensing, perform precise alignment and measure static gap voltage to match the -10 VDC linear range parameters specified in the engineering loop diagram.

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.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

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.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

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.