Bently 3300 XL 8mm Proximity Sensor

Bently 3300 XL 8mm Proximity Sensor

System Overview

Component

The 3300 XL 8mm proximity sensor system consists of three parts:

3300 XL 8mm probe

3300 XL extension cable (1-meter system does not require extension cable)

3300 XL Proximitor Sensor

Core functions

The system output voltage is proportional to the distance between the probe tip and the measured conductive surface, and can simultaneously measure static (position) and dynamic (vibration) values. It is mainly used for vibration and position measurement of fluid film bearing machinery, as well as Keyphasor reference and velocity measurement.

Main advantages

Advanced performance, the 5-meter standard system fully complies with API 670 standards (mechanical configuration, linear range, accuracy, and temperature stability).

The components are completely interchangeable, without the need to match or calibrate probes, extension cables, and proximity sensors.

Backward compatibility with non XL 3300 series 5mm and 8mm sensor system components, including 3300 5mm probes.

Key component description

1. Proximitor sensor

Installation flexibility: Supports high-density DIN rail installation and traditional panel installation, sharing the same 4-hole installation footprint as the old model.

Anti interference capability: Strong resistance to radio frequency interference (RFI), can be installed in fiberglass enclosures, and can meet EU CE certification without the need for special shielding conduits or metal enclosures.

Convenient wiring: Using SpringLoc terminal blocks, no specialized installation tools are required, making wiring faster and more secure.

2. Approaching the probe and extending the cable

Structural improvement: The probe adopts the patented TipLoc molding method, which makes the probe tip more firmly combined with the probe body; The cable adopts a patented CableLoc design, with a tensile strength of 330N (75lbf).

Special option: Optional FluidLoc cable to prevent oil and other liquids from leaking from the machine through the inside of the cable.

Connector: Adopting corrosion-resistant and gold-plated ClickLoc connector, it only needs to be tightened with fingers (there will be a "click" sound when tightened), and the specially designed locking mechanism prevents loosening. Installation and disassembly do not require special tools.

3. Extended Temperature Range (ETR) component

ETR probe: Temperature rating up to 218 ° C (425 ° F).

ETR extension cable: Temperature rating up to 260 ° C (500 ° F).

Compatibility: Compatible with standard temperature probes and cables, but system accuracy is limited by the accuracy of the ETR system when using any ETR component.

Technical specifications

1. Electrical parameters

Power supply: -17.5Vdc to -26Vdc (non intrinsic safety circuit), -23Vdc to -26Vdc (with barrier), maximum power consumption of 12mA.

Output resistance: 50 Ω.

Linear range: 2mm (80 mil), starting from approximately 0.25mm (10 mil) from the target, ranging from 0.25 to 2.3mm (10 to 90 mil) (approximately -1 to -17Vdc).

Recommended radial vibration clearance setting: -9Vdc [approximately 1.27mm (50 mils)].

Incremental scaling factor (ISF):

Standard 5-meter or 1-meter system: 7.87V/mm (200mV/mil) ± 5%.

Standard 9-meter system: 7.87V/mm (200mV/mil) ± 6.5%.

Extended Temperature Range (ETR) 5-meter and 9-meter systems: 7.87V/mm (200mV/mil) ± 6.5%.

2. Mechanical parameters

Probe tip material: Polyphenylene sulfide (PPS).

Probe housing material: AISI 303 or 304 stainless steel (SST).

Cable specifications:

Standard cable: 75 Ω three-axis, fluorinated ethylene propylene (FEP) insulation, probe total length of 0.5, 1, 1.5, 2, 3, 5 or 9 meters.

Extended temperature range cable: 75 Ω three-axis, perfluoroalkoxy (PFA) insulation, probe total length of 0.5, 1, 1.5, 2, 5 or 9 meters.

Minimum cable bending radius: 25.4mm (1.0 inch).

Weight:

Total weight of the system (typical value): 0.7kg (1.5lbm).

Probe: 323g/m (11.4oz).

Extension cable: 34g/m (0.4oz/ft).

Armored extension cable: 103g/m (1.5oz/ft).

Proximitor Sensor: 246g (8.67oz).

3. Environmental parameters

Probe temperature range:

Standard probe: -52 ° C to+177 ° C (-62 ° F to+350 ° F).

Extended temperature range probe: probe tip -52 ° C to+218 ° C.