The Bently Nevada 21504-00-16-05-02 is a 7200 series proximity probe (eddy current displacement sensor) used for rotating machinery condition monitoring.
It is commonly applied in:
- Turbines
- Compressors
- Pumps
- Generators
- Industrial rotating equipment
It works as part of a three-piece measurement system:
Probe + Extension Cable + Proximitor Sensor
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Bently Nevada (GE) |
| Model | 21504-00-16-05-02 |
| Series | 7200 Proximity Transducer System |
| Type | Eddy current proximity probe |
| Measurement | Shaft vibration / displacement |
| Probe Diameter | 8 mm |
| Mounting Thread | 3/8-24 UNF |
| Case Length Code | 16 = ~160 mm unthreaded section |
| Cable Length Code | 05 = ~0.5 m cable |
| Connector | 02 = miniature coaxial connector |
| Output | Linear voltage proportional to gap |
| Operating Temp | -40°C to +120°C (system dependent) |
Physical Characteristics
| Item | Specification |
|---|---|
| Length (overall configuration) | ~160 mm class probe body |
| Weight (probe only) | ≈ 0.88 kg |
| Shipping Weight | ~1.0–1.5 kg (with packaging) |
| Material | Stainless steel housing + insulated sensing tip |
| Installation Type | Radial shaft proximity mounting |
System Role
This probe is used for non-contact shaft measurement, including:
- Radial vibration
- Axial thrust position (system dependent setup)
- Shaft eccentricity
- Rotor dynamic movement
It sends a signal to a Proximitor driver, which converts it into usable vibration data for protection systems.
