Skip to product information
1 of 3

Bently Nevada 8mm Proximity Probe | 21504-12-28-10-02

In stock (23 units), ready to be shipped
  • Vendor:

    Bently Nevada

  • Type:

    Proximity Probe

  • Country of Origin:

    USA

  • Dimensions:

    25*25*4cm

  • Weight:

    590 g

  • Tags: Probe Proximity probe

Bently Nevada 21504-12-28-10-02 Proximity Vibration Probe

Physical Dimensions & Configuration

  • Full Model Number: 21504-12-28-10-02
  • Tip Diameter: 8 mm for focused measurement.
  • Unthreaded Length: 12 (120 mm)
  • Case Length: 28 (2.8 inches)
  • Cable Length: 10 (1.0 meter / 39 inches) Tolerance: +0.25 m, -0.10 m
  • Connector: 02 (Miniature male coaxial connector)

Electrical & Output Specifications

  • Power Supply: Requires -17.5 to -26 V DC with a maximum current draw of 12 mA.
  • Measurement Range: 80 mils (2.0 mm), with a detection start point near 10 mils (0.25 mm).
  • Scale Factor (Sensitivity): 200 mV/mil (7.87 V/mm), with an accuracy of ±4% when calibrated.
  • Linearity: High precision within 0.8 mils (0.02 mm) of the ideal line.
  • Frequency Response: 0 to 10 kHz (600,000 CPM), maintaining performance across the range.

Environmental Operating Conditions

  • Ambient Temperature (Probe & Cable): -30°F to +350°F (-34°C to +177°C)
  • Ambient Temperature (Proximitor): -60°F to +212°F (-51°C to +100°C)
  • Humidity: Operates in up to 95% non-condensing humidity.
  • Corrosion Resistance: Suitable for use in air, water, oil, ammonium hydroxide, 10% sulfuric acid, MEK, and DMF.

Model Number Breakdown

  • 21504: Base model for the 7200 Series Proximity Probe system.
  • 12: Denotes a 120 mm unthreaded section.
  • 28: Specifies a 2.8-inch overall case length.
  • 10: Indicates a 1.0-meter integrated cable.
  • 02: Defines the miniature male coaxial connector type.

Shipping & Support Information

  • Condition: New and Original Bently Nevada part.
  • Availability: The 21504-12-28-10-02 is available from stock.
  • Shipping: Fast dispatch via FedEx, UPS, and DHL within 5 business days.
  • Returns: We provide a hassle-free 30-day return policy.

Frequently Asked Questions (FAQ)

  • What is the unthreaded length of this probe?
    This model has a 120 mm (12 cm) unthreaded length, specified by the '12' in the part number.
  • What power supply does this vibration probe need?
    It requires a negative DC voltage between -17.5V and -26V to operate correctly.
  • Can this probe withstand wet or corrosive environments?
    Yes, it is designed to resist corrosion from water, oil, and several chemicals including dilute acids.
  • What is the actual cable length tolerance?
    The 1.0-meter cable has a +0.25 meter / -0.10 meter manufacturing tolerance.
  • Where can I find the installation and system manual?
    Download the complete technical guide here: 7200 Proximity Transducer Systems PDF

For compatibility checks or to order the Bently Nevada 21504-12-28-10-02, contact our sales team today.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner: NexAuto Technology Limited

Fast & Reliable Shipping

Quick worldwide delivery

keeps your automation projects on schedule.

Genuine & Trusted

All components are 100% authentic

ensuring reliable performance for your systems.

  • Express Delivery
  • 12 Months Warranty
  • 30 Days Easy Returns
View Product Details

Customer Support

Get Help When You Need It Most