Bently Nevada 21000-16-05-15-072-03-02 Probe Housing

Bently Nevada 21000-16-05-15-072-03-02 Proximity Probe Housing

Product Introduction

The Bently Nevada 21000-16-05-15-072-03-02 is a fully assembled proximity probe housing solution. This model integrates a 3300 XL 8 mm probe into a durable aluminum housing with a stainless steel sleeve. Specifically, it is designed for externally mounted applications where measuring shaft vibration and position is critical. Furthermore, its robust construction and hazardous area approvals make it a reliable choice for API 670 compliant machinery protection systems.

Technical Specifications

This section details the core technical attributes of the 21000-16-05-15-072-03-02.

• Housing Series: This unit belongs to the 21000 series of proximity probe housing assemblies.

• Probe Option: The suffix code 16 indicates that this assembly includes a 3300 XL 8 mm probe with a connector.

• Probe Cable Length: Option 05 signifies a probe cable length of 0.5 meters (20 inches) .

• Standoff Adapter: The standoff adapter length is 1.5 inches (38 mm) , as indicated by the 15 suffix.

• Probe Penetration (D Dimension): The probe penetration length is set to 072, which equals 7.2 inches.

• Mounting Thread: This model uses a 3/4-14 NPT mounting thread, designated by option 02.

• Fittings: The -03 option includes specific fittings: one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for various cable sizes.

Mechanical and Environmental Parameters

Understanding the physical limits and environmental tolerances of the Bently Nevada 21000-16-05-15-072-03-02 is essential for proper installation.

• Housing Material: The assembly features an aluminum body with a 304 stainless steel sleeve, offering a balance of lightweight design and corrosion resistance.

• Weight: It typically weighs around 1.1 kg (2.4 lb) without the fittings.

• Maximum Probe Extension: The maximum visible probe length, including the standoff, is 17.0 inches (43.18 cm). The total maximum dimension is 32.9 inches (83.5 cm).

• Design Notes: For probe penetrations between 1.0 and 2.0 inches, counter-boring the machine case might be necessary. Moreover, if the total penetration (C plus D) exceeds 300 mm (12 inches), you must add sleeve support near the probe to prevent resonance.

• Hazardous Area Approvals: The 21000 housing is CSA certified for explosion-proof applications in North America. It is rated for Class 1 Divisions 1 and 2 Groups C and D, and Class 2 Divisions 1 and 2 Groups E, F, and G. Additionally, it is an Enclosure Type 4 and has temperature classifications of T5 @ Ta = -50 °C to +40 °C and T4 @ Ta = -50 °C to +80 °C.

Installation Guidance

Proper installation ensures the longevity and accuracy of the 21000-16-05-15-072-03-02.

• Mounting: Secure the housing to the machine using the 3/4-14 NPT mounting thread. Ensure the mounting surface is clean and flat.

• Probe Penetration Adjustment: The adjustment range of the probe penetration option D is 13 mm (± 0.5 in). Therefore, you can fine-tune the probe's position for optimal performance.

• Cable Management: Use the provided cable seal grip with the appropriate grommet for your cable size to maintain a proper seal and prevent damage.

• Sleeve Support: As noted, if the total probe extension is long, install the necessary sleeve support to avoid mechanical resonance, which could affect measurement accuracy.

What’s in the Box

When you purchase the Bently Nevada 21000-16-05-15-072-03-02, your shipment will include the following items:

• One (1) Bently Nevada 21000 proximity probe housing assembly (Model: 21000-16-05-15-072-03-02).

• The assembly includes the dome cover, body, probe sleeve, O-rings, reverse mount proximity probe, and thread seal.

• One (1) 3/4-14 NPT plug.

• One (1) 3/4-14 to 1/2-14 NPT reducer.

• One (1) cable seal grip with grommets for various cable sizes.

Frequently Asked Questions (FAQ)

Q1: Can the Bently Nevada 21000-16-05-15-072-03-02 be used in hazardous areas?
A: Yes, it is CSA certified for explosion-proof applications. It is suitable for Class 1 Divisions 1 and 2 and Class 2 Divisions 1 and 2 environments, making it a safe choice for many industrial settings.

Q2: What is the probe penetration length for the 21000-16-05-15-072-03-02 model?
A: This model has a probe penetration (D dimension) of 7.2 inches. This length is adjustable by ± 0.5 inches, providing flexibility during installation.

Q3: What is included with the 21000-16-05-15-072-03-02 housing assembly?
A: The assembly includes the housing body, a dome cover, a 3300 XL 8 mm probe, a 0.5m cable, a 1.5-inch standoff adapter, and the necessary fittings for conduit connections and cable sealing.

Q4: Does the 21000 housing comply with industry standards?
A: Yes, the 21000 housing is fully compliant with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings.

Q5: What should I do if the total probe penetration is very long?
A: If the probe penetration (C plus D) exceeds 300 mm (12 inches), you must add sleeve support near the probe. This step is crucial to prevent resonance and ensure measurement accuracy.

Shipping Information

We ship this product via FedEx, UPS, or DHL to ensure fast and reliable delivery to your location.