Bently Nevada 21505-00-32-10-02 7200 Probe Armored

Bently Nevada 21505-00-32-10-02 7200 Proximity Probe with Armor

Product Introduction

The Bently Nevada 21505-00-32-10-02 represents a robust solution within the 7200 Proximity Transducer Systems family. This 8 mm probe is specifically engineered for non-contact vibration and position measurement in demanding industrial environments. The key differentiator for this model is its stainless steel lead armor, which provides superior protection for the probe cable against mechanical damage and abrasion.

This configuration features an overall case length of 3.2 inches and a total cable length of 1.0 metre (39 inches) . The unthreaded length is set to 0 mm, making it suitable for standard mounting applications. It also includes a miniature male coaxial connector for straightforward system integration.

The probe operates on a power supply ranging from -17.5 Vdc to -26 Vdc. Its calibrated range extends to 80 mils (2.0 mm) , beginning at approximately 10 mils from the probe face. Consequently, it captures both static and dynamic displacement measurements with high precision.

Technical Specifications

The Bently Nevada 21505-00-32-10-02 offers exceptional measurement performance. Its scale factor is 200 mV/mil (7.87 V/mm) , achieving ±4% accuracy when calibrated as a system. Including interchangeability errors, the accuracy remains within ±9.5%. Furthermore, linearity is outstanding at within 0.8 mils for system calibration, and within 2.3 mils when considering interchangeability errors.

The frequency response spans from 0 to 10 kHz (0 to 600,000 cpm) , with only a -5% deviation at the upper limit. This broad frequency range captures both low-speed and high-speed machine vibrations effectively. The temperature sensitivity shows a typical -396 change in scale factor at +150°F and a 50 mils gap.

The probe tip is constructed with an 8 mm diameter and features standard 3/8-24 threads. The case configuration is standard, fitting most industrial mounting brackets. The inclusion of lead armor differentiates this model from its non-armored counterparts.

Environmental Limits

The 21505-00-32-10-02 operates reliably across extreme temperature ranges. The Proximitor functions between -60°F and +212°F (-51°C to +100°C) . Meanwhile, the probe and extension cable tolerate temperatures from -30°F to +350°F (-34°C to +177°C) . This wide range makes it suitable for both cold outdoor and high-heat processing applications.

Relative humidity tolerance reaches 95% non-condensing, permitting deployment in humid environments without performance degradation. For 8 mm probes, corrosion resistance is impressive. Direct contact with air, water, lube oil, ammonium hydroxide, 10% sulfuric acid, MEK, or DMF does not affect probe operation. Therefore, it works well in chemical plants and offshore installations.

Mechanical Protection Features

The stainless steel lead armor provides significant advantages in harsh environments. First, it protects the cable from cutting, crushing, and abrasion during installation and operation. Second, the armor prevents rodent damage, which is a common concern in many industrial facilities. Third, it extends the service life of the probe assembly.

Additionally, the armor adds mechanical strength without compromising signal quality. The miniature male coaxial connector remains exposed for easy connection. Therefore, this probe is ideal for applications where cable routing passes through tight spaces or areas with potential mechanical interference.

Installation Guidelines

Installing the 21505-00-32-10-02 requires careful attention to the armored cable. First, clean the mounting surface thoroughly to ensure proper seating. Next, thread the probe into the mounting bracket using the 3/8-24 threads. Apply appropriate torque to secure it firmly.

Then, route the armored cable to the Proximitor or junction box. Avoid sharp bends that could stress the armor or internal conductors. After that, connect the miniature male coaxial connector to the extension cable. Finally, set the initial gap and verify the output voltage to confirm proper operation.

Packaging List

• Bently Nevada 21505-00-32-10-02 Proximity Probe with lead armor (1 unit)

• Miniature male coaxial connector attached

Frequently Asked Questions (FAQ)

Q1: What is the advantage of the lead armor on this probe?
A1: The stainless steel armor protects the 21505-00-32-10-02 cable from mechanical damage and abrasion.

Q2: What is the case length for the 21505-00-32-10-02 model?
A2: This model features a 3.2-inch overall case length, specified by the 32 option.

Q3: Does this probe withstand chemical exposure?
A3: Yes, it resists air, water, lube oil, ammonium hydroxide, 10% sulfuric acid, MEK, and DMF.

Q4: What is the frequency response range of this sensor?
A4: It responds from 0 to 10 kHz (0 to 600,000 cpm) , with -5% deviation at 10 kHz.

Q5: What connector type does the 21505-00-32-10-02 use?
A5: It comes with a miniature male coaxial connector for easy system connection.