Bentley 330101-00-48-10-02-05 Eddy Current Probe

I. Product Introduction

330101-00-48-10-02-05 is a 3300 XL 8mm standard non-armored eddy current probe from Baker Hughes Bentley, designed for TSI condition monitoring of rotating machinery. It must be used in conjunction with the same series of extension cables + preamplifier. Features: full-length threads, 4.8-inch short housing, 1-meter standard cable, explosion-proof type; suitable for shallow installation holes, full-thread locking throughout, medium-distance wiring, hazardous area scenarios. It is used for shaft vibration, axial displacement, eccentricity, key signal and speed monitoring, in accordance with API 670, with strong anti-interference, wide temperature range, and complete explosion-proof certifications. 

II. Model Code Interpretation (330101-AA-BB-CC-DD-EE)

330101: 3300 XL 8mm, non-armored, 3/8 - 24 UNF thread

00 (AA): No exposed optical rod, full-length thread

48 (BB): Total length of the housing 4.8 inches (≈ 122mm), short housing

10 (CC): Probe comes with a 1.0m cable

02 (DD): Miniature ClickLoc coaxial connector, standard non-armored cable

05 (EE): CSA/ATEX/IECEx explosion-proof certification

III. Mechanics and Materials

Thread: 3/8 - 24 UNF American standard fine thread

Housing: AISI 303/304 stainless steel, 4.8 inches long

Ends: High-temperature resistant PPS, integrated TipLoc

Cable: Non-armored, 1m, oil-resistant and aging-resistant

Connector: Miniature ClickLoc, tool-free insertion and removal

Protection: IP54; Explosion-proof: Zone 0/1/2

Installation Torque: 1.1–1.4 N·m

IV. Electrical Parameters (8mm Standard)

Sensitivity: 7.87V/mm (200mV/mil)

Linear Range: 2.0mm; Effective working range 0.25–2.3mm

Frequency Response: 0–10kHz

Output: In conjunction with the preamplifier, -1VDC ~ -17VDC

Resistance: 1m cable 7.59Ω ± 0.50Ω

Minimum Target Surface Diameter: 8.9mm; Recommended shaft diameter ≥ 50.8mm

V. Environmental Conditions

Operating Temperature: -52℃ ~ +177℃; Short-term +218℃

Storage Temperature: -52℃ ~ +260℃

Humidity: 5%–95%RH, no condensation

Area: Explosion-hazardous zone (0/1/2 zones)

VI. Core Functions

Non-contact measurement: Eddy current principle, no wear, measure vibration / displacement.

Short housing suitable for shallow holes: 4.8in full-length thread, suitable for shallow installation holes, good rigidity, anti-vibration.

1m standard cable: Medium-distance wiring, original factory length ensures impedance matching, cannot be cut.

Wide temperature stability + temperature compensation: -52℃ ~ +177℃ with small drift, data accurate.

Explosion-proof safety: Multiple national standards, can be used in flammable and explosive areas.

Fault self-check: Breaks / short circuits / loose connectors can be detected, rapid alarm.

VII. Typical Applications

Power: Steam turbine, feed pump, induced draft fan shallow hole vibration / displacement monitoring.

Petroleum: Compressor, gas turbine, pump type, explosion-proof area condition monitoring.

Metallurgy: Blast furnace fan, motor, rolling mill rotating component monitoring.

General machinery: Key phase, speed, eccentricity measurement of large rotating equipment.

VIII. Installation Tips

Initial Gap: Set at the linear midpoint, the output of the preamplifier is approximately -9VDC.

End face parallel to the shaft surface, avoid inclination error.

Cable and power line separated laying, minimum bending radius ≥ 6 times the outer diameter.

Explosion-hazardous area construction strictly in accordance with specifications, must not damage explosion-proof structure.