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Bently Nevada

Bently Nevada 330850-91-05 3300 XL 25 mm Proximitor Sensor

SKU 330850-91-05

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12-month warranty
Free returns within 30 days

Manufacturer: Bently Nevada
Product No.: 330850-91-05
Origin United States
Product Type: 3300 XL 25 mm Proximitor Sensor
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 0.35 kg
Dimensions: 70 mm x 120 mm x 120 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Quantità

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Product Description

Description

330850-91-05: 3300 XL 25 mm Proximitor Sensor configured for a 9.0-metre system length with integrated DIN-mount support (Option 91) and multiple hazardous area agency approvals (Option 05).

This Proximitor sensor is calibrated to pair with a 3300 XL 25 mm proximity probe and a matching extension cable to form a complete 9.0-metre transducer system. Compared to panel-mount configurations or shorter 5.0-metre systems, this model features a pre-installed DIN-mount pad that allows secure installation onto standard 35 mm DIN rails, simplifying industrial enclosure layouts. It is calibrated by default for AISI 4140 steel targets, serving large-target eddy-current displacement measurements such as steam turbine thrust position and differential expansion.

Features

Option 91 provides 9.0-metre total system length calibration, matching the combined electrical length of the probe and extension cable.
DIN-mount mounting pad (Option 91) facilitates rapid installation onto standard 35 mm DIN rails.
Option 05 Multiple Approvals package offers certified protection for installation in Class I Division 1/2 and Zone 0/1/2 hazardous areas.
SpringLoc terminal strips provide reliable, tool-free terminal wiring, securing 0.2 to 1.5 mm2 (16 to 24 AWG) field cables.
Active RF shield design minimizes interference from nearby high-frequency radio signals, preserving sensor accuracy.

Applications

Steam turbine thrust position monitoring
Differential expansion measurement on high-capacity rotating machinery
Large shaft target axial displacement tracking
Rod-drop monitoring in reciprocating compressors

Ordering Information

Option / Segment	Code on This SKU	Description
Orderable Part Number	330850-91-05	3300 XL 25 mm Proximitor Sensor
A - System Length and Mounting	91	9.0 metres (29.5 feet) system length, DIN mount
B - Agency Approval Option	05	Multiple Approvals (CSA, ATEX, IECEx, etc.)

Technical Specifications

Manufacturer	Bently Nevada (Baker Hughes)
Part Number / Model	330850-91-05
Transducer System	3300 XL 25 mm Proximity Transducer System
Linear Range	12.7 mm (500 mils), beginning at approx. 0.63 mm (25 mils) and extending to 13.33 mm (525 mils)
Output Signal Range	-1.5 Vdc to -11.5 Vdc (approximately)
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) under standard temperatures; remains within +-0.92 mm (+-36 mils) over extended ranges
Power Supply Input	Requires -17.5 Vdc to -26 Vdc (without barriers) at 12 mA maximum consumption; -23 Vdc to -26 Vdc (with barriers)
Supply Sensitivity	Less than 2 mV change in output voltage per volt change in input voltage
Output Impedance	50 ohms
Frequency Response	0 to 2.7 kHz: +0, -3 dB typical (with up to 305 metres of field wiring)
Proximitor Material	A380 aluminum
Operating Temperature	-51 degC to +100 degC (-60 degF to +212 degF)
Storage Temperature	-51 degC to +105 degC (-60 degF to +221 degF)
Relative Humidity	100% condensing, non-submersible when connectors are protected

Connections and Interfaces

Terminal / Connector	Description
COM	Common / Circuit ground return
OUT	Analog output voltage signal (-1.5 Vdc to -11.5 Vdc)
VTG	Negative DC power supply input (-17.5 Vdc to -26 Vdc)
Coaxial Jack	Female miniature coaxial connector for 3300 XL 25 mm extension cable

Installation Guidelines

Mount securely on standard 35 mm DIN rail inside an IP54 or better protective enclosure.
Ensure a minimum clearance of 3.05 mm (0.120 in) is maintained for DIN rail insertion and removal.
Avoid routing field wiring parallel to high-voltage power cables to mitigate electromagnetic interference.
Apply self-fusing silicone tape or connector protectors over coaxial connections to prevent moisture contamination.
Connect the field wiring shield exclusively at the monitor end to eliminate potential ground loop issues.

Compliance and Certifications

ATEX/IECEx: Ex ia IIC T5...T1 Ga, Ex ia IIIC T90degC...T280degC Dc, Ex nA IIC T4/T5 Gc, Ex ec IIC T4/T5 Gc
CSA/US: Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III
CE Mark: Fully compliant with European Union EMC and hazardous area directives

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

FAQ

What does Option 91 specify for the 330850-91-05 Proximitor Sensor?

Option 91 specifies a 9.0-metre total system length calibration configured for DIN rail mounting.

Which probes and extension cables are compatible with this sensor?

The sensor is designed to pair with 330851 25 mm proximity probes and 330854 extension cables configured for a combined length of 9.0 metres.

What hazardous area approvals are covered under Option 05?

Option 05 designates Multiple Approvals, including CSA, ATEX, and IECEx certifications for Class I Division 1/2 and Zone 0/1/2 installations.

What target material is this Proximitor sensor calibrated for?

The sensor is factory-calibrated to standard AISI 4140 steel for highly accurate eddy-current displacement measurements.

Reviews

330850-91-05

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