Manufacturer: Bently Nevada

Model : 21504-012-032-10-02

Type: Series Sensors

Probe Diameter: 8 mm standard mount

Unthreaded Length Code: 012 (interprets part of model length configuration)

Overall Case Length Code: 032 (interprets case length variant)

Total Cable Length: 1.0 m (10 option)

Output Type: Analog voltage proportional to displacement

Linear Measurement Range:  80 mils (~2.0 mm)

Operating Voltage: −17.5 V DC to −26 V DC

The Bently Nevada 21504-012-032-10-02 Series Sensors are high‑precision proximity probes designed to provide non‑contact measurement of shaft position and vibration in industrial rotating equipment. These sensors utilize eddy current sensing technology to monitor minute changes in distance between the probe tip and a metallic target (typically a rotating shaft), generating an analog output proportional to the displacement. They are widely deployed in critical condition monitoring and machinery protection systems in industries such as power generation, oil & gas, petrochemical, and heavy manufacturing. Compatible with Bently Nevada 7200 and 3300 Proximity Transducer Systems, 21504 series probes are ruggedized for harsh operating environments and support predictive maintenance strategies by detecting early indications of imbalance, misalignment, or bearing wear in machinery before failure occurs.

Frequently asked questions：

Q1. What is the purpose of the 21504-012-032-10-02 sensor?

A: It measures the distance (gap) between the probe tip and a shaft, providing vibration and position data for machinery protection.

Q2. How does the 21504-012-032-10-02 work?

A: It uses eddy current technology to convert shaft displacement into a voltage signal.

Q3. Which systems is 21504-012-032-10-02 compatible with?

A: Bently Nevada 7200 and 3300 Proximity Monitoring Systems.

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