Bently Nevada 330101-00-16-05-02-00 3300 XL 8 mm Proximity Probe

Product information

The 3300 XL 8 mm Proximity Transducer System provides an output voltage that is directly proportional to the distance between the probe tip and the observed conductive surface and can measure both static (position) and dynamic (vibration) values. The system’s primary applications are vibration and position measurements on fluid-film bearing machines, as well as Keyphasor reference and speed measurements. The 3300 XL 8 mm system delivers the most advanced performance in our eddy current proximity transducer systems.

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12 months warranty for all products
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Frequently Asked Questions (FAQ)

Q: What are the strict hardware requirements for threaded installation of the fully threaded 330101-00-16-05-02-00 probe in the field?
A: As a fully threaded (“00”) 1.6-inch probe, it must be aligned perpendicular to the shaft and locked with the bracket or double nuts at 4.5 N·m (40 psi). Care is required in long blind holes to prevent thread damage.

Q: This probe only has a 0.5-meter cable. How do I match the extension cable and preamplifier for the 330101-00-16-05-02-00 to assemble a complete measurement system?
A: For a 5-meter system, a 4.5-meter extension cable is required; for 9 meters, an 8.5-meter cable is required. Incorrect lengths can alter circuit inductance and capacitance and distort the 200 mV/mil output.

Q: Does the "00" explosion-proof code at the end of the model number mean that the 330101-00-16-05-02-00 cannot be used in any factory environment with methane or flammable gases?
A: Yes. The "00" suffix indicates no IS or explosion-proof certification and is intended for general-purpose areas. Hazardous areas require a model ending in "05".

Q: Since the 330101-00-16-05-02-00 is a standard 8 mm probe, what is its maximum physical/mechanical clearance?
A: At 2.54 mm (100 mils), the maximum safe clearance is specified. At distances above this, approximately -22 Vdc and an OOR alarm may occur; below 0.25 mm, physical contact may occur.

Q: When installing multiple 330101-00-16-05-02-00 probes, what are the strict requirements for the physical spacing between adjacent probes?
A: A minimum centerline spacing of 40 mm (1.6 in) is required between two 8 mm probes to prevent electromagnetic crosstalk and false vibration signals.

Application

Natural Gas Processing Plants: Serving as critical protection sensors for centrifugal natural gas export compressors to prevent severe machine vibration caused by flow-induced excitation.

Steel Mills (Iron & Steel Plants): Applied to heavy-duty, high-speed rotating equipment such as blast furnace blowers, large rolling mill drive bearings, and high-power dust collection fans for lifecycle health monitoring.

Fertilizer Plants: Monitoring the critical high-pressure synthesis gas compressors and refrigeration compressors in ammonia production units to ensure continuous and safe operation under extreme pressure and temperature conditions.

Air Separation Plants: Monitoring the shaft condition of large air separation compressors, such as oxygen and nitrogen compressors, to prevent fires or explosions caused by mechanical friction in high-purity oxygen environments.

Water Treatment Plants (Large Waterworks / Wastewater Treatment Plants): Although generally smaller in scale than the above industries, these sensors are commonly installed on the bearings of high-power centrifugal lift pumps and large blowers for basic condition monitoring.

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