21504-08-32-10-02 Bently Nevada 8 mm Probe Proximity Probe
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21504-08-32-10-02: Precision Vibration Proximity Probe
Product Overview
New & Original Bently Nevada vibration monitoring solution with 12-month factory warranty. Designed for industrial machinery protection with ±0.8 mils system linearity and chemical-resistant construction.
Key Specifications
| Part Number Breakdown | 21504 (Base)-08(80mm)-32(3.2")-10(1m)-02(Coaxial) |
| Probe Diameter | 8 mm |
| Measurement Range | 0.25-2.0 mm (10-80 mils) |
| Scale Factor | 200 mV/mil ±4% |
| Frequency Response | 0-10 kHz (±5%) |
| Temperature Range | Proximitor: -51°C to +100°C Probe: -34°C to +177°C |
| Power Requirement | -17.5 to -26 VDC (12mA max) |
| Cable Length | 1.0m (+10"/-4" tolerance) |
Performance Data
- Chemical Resistance: Withstands direct contact with lube oil, sulfuric acid (10%), and industrial solvents
- Temp Sensitivity: -396 ppm/°F at 65°C
- Humidity Tolerance: 95% non-condensing
- Weight: 0.59 kg (1.3 lbs)
Model Comparison
| Model | Length | Cable | Threads | Key Difference |
|---|---|---|---|---|
| 21504-00-08-10-02 | Standard | 1m | None | Shorter unthreaded section |
| 21505-00-20-10-02 | Extended | 1m | M20x1.5 | Different mounting thread |
| 21504-00-08-05-02 | Standard | 0.5m | None | Shorter cable |
| 21504-08-32-10-02 | 80mm | 1m | 3/8-24 | Extended unthreaded section |
Installation Notes
- Mounting: Requires 3/8-24 threaded installation
- Gap Setting: Optimal range 0.25-2.0mm from target
- Orientation: Install perpendicular to vibration surface
Compatibility
Works with Bently Nevada 7200 series monitoring systems. Compatible with all 24VDC-powered industrial control systems.
Package Contents
- 21504-08-32-10-02 probe
- Miniature male coaxial connector
- Installation manual
FAQs
Q: What's the key advantage of the 80mm unthreaded length?
A: Allows installation in deep bearing housings where standard probes can't reach.
Q: Can it monitor high-speed turbines?
A: Yes - 10kHz frequency response covers most turbine applications (up to 600,000 RPM).
Q: Is calibration required after installation?
A: Factory-calibrated, but field verification recommended for critical machinery.