Bently Nevada 21504-000-008-05-02

Ordering Information

Part Number: 21504-000-008-05-02

Series: 3300 XL Proximity Probe System

Probe Tip Diameter: 8 mm (0.315 in) sensing face

Probe-Nose Length Code (“000”): Standard short-nose configuration (nominal 5 mm)

Cable Length Code (“008”): 0.8 m (2.6 ft) PVC-jacketed, braided-shield cable

Jacket Variant (“05”): Standard PVC (unarmored)

Connector Kit (“02”): Factory-installed 10-pin mini-DIN

Mounting Thread: 3/8-24 UNF standard

Technical Parameters

Linear Range: 2 mm (80 mils) full-scale for Bently Nevada 21504-000-008-05-02

Sensitivity: 200 mV/mil (7.87 mV/µm) ± 5 % at –23 V DC excitation in Bently Nevada 21504-000-008-05-02

Output Span: –2 V to –18 V over linear range

Linearity: ± 1 % of full-scale

Frequency Response: DC to 10 kHz (–3 dB)

Operating Temperature: –35 °C to +125 °C (probe); –20 °C to +80 °C (PVC cable)

Environmental Seal: IP65 when mated to connector

Pressure Rating: Requires bulkhead or thermowell for pressurized service

Product function

Bently Nevada 21504-000-008-05-02 converts air-gap variations between probe tip and rotating shaft into proportional AC voltage. The short-nose unarmored design enables confined-space installation, delivering impedance-matched signals via Bently Nevada 21504-000-008-05-02 to Proximitor® modules for linearization and real-time analysis.

Application Areas

Steam & Gas Turbines: Clearance and rub-alarm sensing with Bently Nevada 21504-000-008-05-02 in compact housings

Compressors & Pumps: Short-range shaft-position feedback in control panels

Motors & Generators: End-winding clearance and imbalance detection

R&D & Test Benches: Flexible probe placement for lab-scale testing

OEM Skids: Internal probe harnesses in packages featuring Bently Nevada 21504-000-008-05-02