Bently Nevada 3300 XL 8mm Proximity Sensor System

Bently Nevada 3300 XL 8mm Proximity Sensor System

Core positioning and composition of the product

1. Core functions

Based on the principle of eddy current induction, a voltage signal proportional to the distance between the probe tip and the conductive surface is output, which can simultaneously measure static position (such as radial/axial position of the shaft) and dynamic vibration (such as vibration of rotating equipment). It also supports Keyphasor signal reference and speed measurement, mainly used for state monitoring of fluid film bearing equipment.

2. System composition

The entire system consists of three parts, and each component supports complete interchangeability without the need for separate matching or bench calibration:

3300 XL 8mm probe: core sensing component responsible for collecting distance signals;

3300 XL extension cable: connects probe and preamplifier, 1-meter system does not require extension cable;

3300 XL Proximitor Sensor: processes probe signals and outputs standard voltage, supporting multiple installation and communication scenarios.

Core advantages of the product

1. High compatibility and interchangeability

Backward compatibility: 3300 XL 8mm components (electrical+physical) can be interchanged with non XL series 3300 5mm/8mm components to adapt to old system upgrades; However, when used in combination, system performance may be limited by the specifications of non XL components.

Flexible adaptation: When the installation space is limited and an 8mm probe cannot be used, it can be replaced with a 3300 series 5mm probe (refer to document 141605); If a narrow side view probe is required, the 3300 NSv system can be used (refer to document 147385).

2. Strong environmental adaptability

Structural durability: The probe adopts patented TipLoc molding technology (the probe tip is more firmly combined with the body), CableLoc design (75lbf/330N tensile strength), 8mm probe coil packaging is thicker, and the resistance to physical damage is stronger;

Protection and anti pollution: FluidLoc cable is optional to prevent oil and other liquids from leaking through the interior of the cable; The preamplifier has high immunity to radio frequency interference (RFI/EMI) and can meet EU CE certification without the need for special shielded conduits;

Wide temperature range and resistance to extreme conditions: Standard probe operating temperature -52~+177 ℃ (-62~+350 ℉), extended temperature range (ETR) probe tip can reach 218 ℃ (425 ℉), ETR cable can reach 260 ℃ (500 ℉), while resisting 50g impact and 30g vibration (10Hz~2kHz).

3. Convenient installation and maintenance

Flexible installation: The preamplifier supports high-density DIN rail installation or traditional panel installation (4-hole installation position compatible with the old model), without the need for additional isolation plates;

Simplified connection: The components use gold-plated ClickLoc connectors, which only require finger tightening (indicated by a "click" when in place), without the need for specialized tools; It is recommended to install a connector protective cover (or use accompanying silicone tape, but not recommended for use in turbine oil environments).

Key technical parameters

1. Electrical performance (standard conditions:+18~+27 ℃, altitude of 2000 meters, -24Vdc power supply, AISI 4140 steel target)

Parameter category specific specifications

Linear range of 0.25~2.3mm (10~90mil), corresponding to output voltage of -1~-17Vdc

Incremental scaling factor (ISF) standard 5/1-meter system: 7.87V/mm (200mV/mil) ± 5%; 9-meter system/ETR system: ± 6.5% (0~45 ℃)

Linear Deviation (DSL) standard 5/1-meter system: ± 0.025mm (± 1mil); 9-meter system/ETR system: ± 0.038mm (± 1.5mil)

Supply voltage -17.5~-26Vdc (with safety barrier -23~-26Vdc), maximum power consumption 12mA

Frequency response 0~10kHz,+0/-3dB (supports up to 305 meters/1000 feet of on-site wiring)

2. Mechanical and physical parameters

Key specifications of components

Probe material: PPS plastic at the tip of the probe, AISI 303/304 stainless steel casing; Cable: 75 Ω three-axis FEP/PFA insulation

Extended cable capacitance 69.9pF/m; 3-meter cable resistance: core wire 0.66 Ω± 0.10 Ω, outer conductor 0.20 Ω± 0.04 Ω

The material of the preamplifier is A308 aluminum; Weight 246g (8.67oz); Installation torque: maximum probe housing 11.2~33.9N · m

The typical total weight of the system is 0.7kg (1.5lb); Probe 323g/m, extension cable 34g/m (with armor 103g/m)

Applicable scenarios and compliance certification

1. Target application areas

Mainly used in industrial scenarios that require monitoring the status of rotating equipment, including:

Energy: Wind turbines;

Heavy industry: steel, aluminum equipment;

Manufacturing: Pressure machines, metal forming equipment;

Special scenarios: testing and simulation systems, chemical equipment, robots.

2. Compliance and Security Certification

Specific standards and levels for certification types

Electromagnetic compatibility (EMC) complies with EN 61000-6-2 (industrial immunity) and EN 61000-6-4 (industrial emissions)

Functional safety SIL 2 (HFT=0), SIL 3 (HFT=1)

ATEX/IECEx hazardous area certification: II 1 G Ex ia IIC T4/T5 Ga (Zone 0), II 3 G Ex nA IIC T4/T5 Gc (Zone 2); cNRTLus：Class I Zone 0/2、Div 2