Bently Nevada – 21508-02-12-90-02 – Reverse Mount Probe

Bently Nevada Proximity Vibration Probe 21508-02-12-90-02 – Industrial Vibration Sensor

What It Is

A new, original vibration probe by Bently Nevada. Factory-packed for reliable industrial use.

Model Suffix Breakdown (21508-02-12-90-02)

21508-02-12: Base model (7200 Proximity Transducer Systems).
90: Total cable length (9.0m / 351in; range: +1.0m/-0.9m).
02: Connector type (small male coaxial).

Key Tech Details

Main Specs

Probe size: 8mm diameter.
Measuring range: 80 mils (2.0mm), starts ~10 mils (0.25mm) from probe tip.
Output scale: 200 mV/mil (7.87 V/mm), ±4% (system calibration).
Linearity: Within 0.8 mils (0.02mm) of 200 mV/mil line (system calibration).

Power & Output

Power needed: -17.5Vdc to -26Vdc, max 12mA.
Frequency range: 0-10kHz (0-600,000 cpm); -5% at 10kHz.

Working Conditions

Proximitor temp: -51°C to +100°C (-60°F to +212°F).
Probe/cable temp: -34°C to +177°C (-30°F to +350°F).
Humidity: Up to 95% (no condensation).
Resists chemicals: Air, water, lube oil, 10% sulfuric acid, and more (8mm probes only).

Physical Features

Threads: 3/8-24 (reverse).
Weight: 0.59kg (1.3lbs).
Lead armor: None.

Install & Fit

Easy to install with 3/8-24 threads. Works in chemical-exposed industrial areas.

What’s in the Box

Factory-packed system: probe, 9m extension cable, and small coaxial connector.

Download PDF file here:7200 Proximity Transducer Systems