- Overview
- Quick Detail
- Description
- Applications
- Specifications
- Competitive Advantage
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
Bently Nevada |
Model Number: |
21508-02-12-50-02 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Quick Detail
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Product Type: |
Proximity Vibration Probe |
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Model Type: |
Reverse Mount Probe |
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Measurement Principle: |
Non-contacting |
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System Type: |
Gap-to-Voltage Transducer System |
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Measured Quantities: |
Static and dynamic displacement |
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Primary Application: |
Shaft position and vibration measurement |
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Typical Machinery: |
Gas turbines, steam turbines, compressors, pumps, centrifuges, motors, generators |
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Linear Measuring Range: |
80 mils (2.0 mm) |
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Calibrated Range Start: |
Approximately 30 mils (0.25 mm) from probe face |
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Frequency Response (DC): |
0 Hz (DC) to 10 kHz |
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Dimension: |
18x18x2cm |
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Weight: |
0.1kg |
Description
21508-02-12-05-02 is a Probe Proximity Vibration developed by Bently Nevada. It is a part of the Bently Nevada 7200 5mm / 8mm Series Proximity Transducer System. The Bently Nevada 7200 5mm / 8mm Series Proximity Transducer Systems are non-contacting, gap-to-voltage transducer systems that measure static and dynamic distances between the probe tip and the observed target. The general use is any circumstance requiring an accurate, non-contact displacement measurement. However, the most prevalent application is for shaft position and vibration measurements on rotating and reciprocating machinery. They are intended for use with nearly any machine type, including gas and steam turbines, compressors, pumps, centrifuges, electric motors, and generators. The system has an 80 mil (2 mm) linear measuring range and is API 670 compliant.
Applications
Mount 21508-02-12-50-02 Probe on Rotating Shafts for Vibration Measurement
The 21508-02-12-50-02 Probe Proximity Vibration mounts directly on turbines, compressors, pumps, motors, or generators to measure static and dynamic displacement up to 80 mils (2.0 mm). Its DC–10 kHz frequency response supports automated vibration monitoring and high-speed shaft position tracking in industrial automation systems.
Connect 21508-02-12-50-02 Probe to Proximitor Inputs for Data Collection
The 21508-02-12-50-02 probe transmits 200 mV/mil signals through its 0.5 m integrated miniature coaxial cable to Proximitor or data acquisition modules, enabling real-time analysis for automated diagnostics.
Monitor Industrial Machinery with 21508-02-12-50-02 Probe
The 21508-02-12-50-02 Probe Proximity Vibration continuously records displacement and vibration data from turbines, pumps, compressors, motors, and generators, feeding automated monitoring systems for predictive maintenance.
Trigger Automated Maintenance Alerts Using 21508-02-12-50-02 Probe Data
The 21508-02-12-50-02 probe allows automated systems to detect abnormal shaft movement or vibration deviations (up to 600,000 cpm) and initiate maintenance actions before equipment failures occur.
Specifications
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Frequency Response Deviation: |
-5% at 10 kHz |
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Speed Equivalent Range: |
Up to 600,000 cpm |
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Scale Factor: |
200 mV/mil (7.87 V/mm) |
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Scale Factor Accuracy: |
±4% when calibrated as a system |
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Overall Accuracy Including Interchangeability: |
Within ±29.5% |
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Linearity (System Calibrated): |
Within 0.8 mils (0.02 mm) |
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Linearity Including Interchangeability: |
Within 2.3 mils (0.06 mm) |
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Input Power Supply Range: |
-175 Vdc to -26 Vdc |
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Maximum Current Consumption: |
12 mA |
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Cable Length: |
0.5 metre (20 inches) |
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Cable Type: |
Integrated probe cable |
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Connector Type: |
Miniature male coaxial connector |
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Operating Temperature Range: |
-30 °F to +350 °F (-34 °C to +177 °C) |
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Temperature Sensitivity: |
Typically -3% scale factor change at +150 °F (+65 °C) at 50 mil gap |
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Relative Humidity Rating: |
Up to 95%, non-condensing |
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Corrosion Resistance (8 mm probes): |
Resistant to air, water, lube oil, ammonium hydroxide, sulfuric acid (10%), MEK, DMF |
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Compliance Standard: |
API 670 compliant |
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System Weight: |
1.3 lbs (0.59 kg) |
Competitive Advantage
Provide High-Frequency Accurate Signals with 21508-02-12-50-02 Probe
The 21508-02-12-50-02 Probe Proximity Vibration outputs precise DC–10 kHz signals with ±4% scale factor accuracy and 0.02 mm linearity, supporting automated vibration and displacement measurement for industrial machinery.
Install 21508-02-12-50-02 Probe Quickly on Shafts and Housings
With 0.5 m integrated cable, miniature coaxial connector, and reverse mount design, the 21508-02-12-50-02 probe mounts directly on turbines, compressors, pumps, motors, or generators without adapters, reducing setup time in automation systems.
Operate in Extreme Industrial Conditions with 21508-02-12-50-02 Probe
The 21508-02-12-50-02 Probe Proximity Vibration functions from -34 °C to +177 °C, resists corrosion from air, water, oils, and mild acids, and supports continuous automated shaft position and vibration monitoring on rotating and reciprocating machinery.
Integrate Seamlessly with Bently Nevada 7200 Systems
The 21508-02-12-50-02 probe connects directly to 7200 series Proximitor inputs, providing automated systems with real-time displacement and vibration data for diagnostics, predictive maintenance, and machinery performance tracking.