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Bently Nevada 330850-90-00 3300 XL 25 mm Proximitor Sensor

Bently Nevada 330850-90-00 3300 XL 25 mm Proximitor Sensor

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  • Manufacturer: Bently Nevada

  • Product No.: 330850-90-00

  • Country of origin:United States

  • Product Type: 3300 XL 25 mm Proximitor Sensor

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 350g

  • Dimensions: 70 mm x 120 mm x 120 mm (H x W x D)

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Option 90 (9.0 m system length, panel mount) and Option 00 (no required approvals) specify this 3300 XL 25 mm Proximitor Sensor configuration — 330850-90-00.

This sensor processes eddy-current signals from a 3300 XL 25 mm proximity probe and extension cable to measure large-target shaft displacement, differential expansion, or thrust position. It operates with a nominal scale factor of 0.787 V/mm (20 mV/mil) over a 12.7 mm (500 mils) linear range. This specific 9.0 m panel-mount sensor configuration is intended for installations where the total combined probe and extension cable length equals 9.0 meters. The unit features built-in SpringLoc terminal strips for field wiring connections, providing RFI/EMI shielding without specialized tools.

Features

  • Option 90 configuration specifies a 9.0 meter system length tailored for large-machinery monitoring applications.
  • Integrated panel-mount design secures with standard mounting screws on control panel plates or enclosures.
  • Built-in SpringLoc terminal strips facilitate fast field wiring connections without requiring specialized installation tools.
  • Advanced RFI/EMI immunity meets European CE mark requirements without requiring specialized mounting shielding.
  • Linear output scales at a nominal 0.787 V/mm (20 mV/mil) over the entire 12.7 mm linear range.
  • Option 00 means no hazardous area approvals are specified for this particular sensor unit.

Applications

  • Steam turbine thrust position monitoring
  • Differential expansion measurements on large machinery shafts
  • Rod-drop monitoring in reciprocating compressors
  • Large target non-contact shaft displacement measurements

Ordering Information

Option Code on This SKU Description
Orderable Part Number 330850-90-00 3300 XL 25 mm Proximitor Sensor
A: Total Length and Mounting Option 90 9.0 metres (29.5 feet) system length, panel mount
B: Agency Approval Option 00 No Approvals

Technical Specifications

Parameter Specification Value
Manufacturer Bently Nevada (Baker Hughes)
Part Number / SKU 330850-90-00
System Compatibility 3300 XL 25 mm Proximity Transducer System (330851 probes, 330854 extension cables)
Linear Range 12.7 mm (500 mils), beginning at approximately 0.63 mm (25 mils) from target
Average Scale Factor (ASF) 0.787 V/mm (20 mV/mil) nominal
Deviation from Best Fit Straight Line (DSL) Less than +/-0.31 mm (+/-12 mils) at standard temperature
System Length 9.0 meters (including probe and extension cable)
Mounting Configuration Panel Mount
Proximitor Sensor Input Power Requires -17.5 Vdc to -26 Vdc at 12 mA maximum current consumption
Output Resistance 50 ohms
Frequency Response 0 to 2.7 kHz: +0, -3 dB typical (with up to 305 meters of field wiring)
Sensor Housing Material A380 aluminum
Proximitor Weight (Sensor Only) 255 g (9.0 oz)
Operating Temperature Range -51 degC to +100 degC (-60 degF to +212 degF)
Storage Temperature Range -51 degC to +105 degC (-60 degF to +221 degF)
Relative Humidity Limit 100% condensing, non-submersible when connectors are protected
Recommended Minimum Target Size 61 mm (2.4 in) diameter (flat target)

Connections and Interfaces

Terminal/Connector Function / Description
VTG Power supply input (-17.5 Vdc to -26 Vdc)
OUT Analog dynamic output voltage signal (-1.5 Vdc to -11.5 Vdc proportional to gap)
COM Common system ground / reference terminal
Coaxial Connector Female ClickLoc coaxial connector for 3300 XL extension cable attachment
Test Pins Built-in test pin sockets on terminal strip for in-situ signal verification

Installation Guidelines

  • Mount the Proximitor sensor securely using standard panel mount screws on a flat surface inside a protective housing or enclosure.
  • Connect only a 3300 XL 25 mm extension cable and probe with a combined total electrical length matching the 9.0 m system calibration.
  • Ensure field wiring uses recommended 0.2 to 1.5 mm2 (16 to 24 AWG) shielded triad cable between the Proximitor and the monitoring system.
  • Route the coaxial cabling with a minimum bend radius of 25.4 mm (1.0 in) to prevent internal physical damage to the conductor.
  • Keep the sensor terminal area free of moisture or dust. Ensure connectors are protected with silicone self-fusing tape in high-humidity areas.

Compliance and Certifications

  • CE Mark compliant
  • RoHS compliant
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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 330850-90-00 3300 XL 25 mm Proximitor Sensor

What is the system length and mounting configuration of the 330850-90-00 Proximitor Sensor?

The 330850-90-00 Proximitor Sensor is configured with Option 90, which specifies a 9.0-meter system length and a panel-mount design.

Does the 330850-90-00 sensor include hazardous area approvals?

No. The 330850-90-00 sensor has the B option code of 00, indicating a standard configuration with no agency approvals.

Which probe and cable are compatible with the 330850-90-00 Proximitor Sensor?

This sensor is compatible with the 330851 3300 XL 25 mm Proximity Probe and the 330854 3300 XL 25 mm Extension Cable. The combined electrical length of the probe and extension cable must equal 9.0 meters.

What terminals are provided on this panel-mount sensor?

It features SpringLoc terminal connections for VTG (power), OUT (analog displacement voltage signal), and COM (common), along with dedicated test pin sockets.

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Returns & Warranty

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  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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