21000-28-10-30-050-03-02 | Bently Nevada 8 mm Proximity Probe Housing Assembly

Introduction to the Bently Nevada 21000-28-10-30-050-03-02

When industrial machinery demands precise vibration monitoring, the 21000-28-10-30-050-03-02 delivers robust performance. This proximity probe housing assembly from Bently Nevada is engineered for hazardous area applications. It combines an aluminum body with a 304 stainless steel sleeve for durability. The housing supports a 3300 XL 8 mm probe with selectable hazardous area approvals. This model ensures accurate shaft displacement measurements in rotating equipment.

Key Features and Technical Specifications

• The 21000-28-10-30-050-03-02 includes a 1.0 m (39 in) probe cable length for flexible installation.
• It features a 3 in standoff adapter to position the probe correctly.
• Probe penetration is 5 in, allowing deep insertion into the housing.
• Mounting thread option 02 uses 3/4-14 NPT for secure attachment.
• The assembly includes one 3/4-14 NPT plug and one 3/4-14 to 1/2-14 NPT reducer.
• A cable seal grip with grommets accommodates cable sizes from 1/8 to 3/8 inches.
• Typical weight is 1.1 kg (2.4 lb) without fittings.
• Maximum probe cable length plus dimension (C+D) is 32.9 in (83.5 cm) with visible probe.

Applications and Use Cases

This housing assembly is ideal for monitoring vibration in turbines, compressors, and pumps. It meets API 670 standards for externally mounted proximity probes. The CSA Type 4 enclosure rating makes it suitable for harsh industrial environments. Additionally, it supports intrinsically safe applications when paired with hazardous area approved probes.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread option for a secure fit. Ensure the standoff adapter length matches your installation requirements. The cable seal grip must be tightened to prevent moisture ingress. Always follow the manufacturer's manual for proper probe positioning and wiring. Verify that the probe cable length does not exceed the maximum dimension of 32.9 in.

Maintenance and Reliability

Regular inspection of the housing and seals helps maintain explosion-proof integrity. Check for signs of wear on the O-rings and cable grommets. The aluminum body resists corrosion, while the stainless steel sleeve provides additional protection. For long-term reliability, follow Bently Nevada's recommended service intervals.

Compatibility and Integration

The 21000-28-10-30-050-03-02 works with Bently Nevada 3300 XL 8 mm proximity probes. It is compatible with monitoring systems that accept standard proximity probe inputs. The housing can be integrated into new or existing vibration monitoring setups. Its CSA certification ensures compliance with North American hazardous area requirements.

Frequently Asked Questions

What is the cable length of the 21000-28-10-30-050-03-02?

The probe cable length is 1.0 m (39 in).

What mounting thread does this housing use?

It uses a 3/4-14 NPT thread option.

Is this housing suitable for hazardous areas?

Yes, it is CSA certified for explosion-proof applications in Class I Divisions 1 and 2 Groups C and D.

What is the weight of the housing without fittings?

The typical weight is 1.1 kg (2.4 lb).

Product Support and Availability

The 21000-28-10-30-050-03-02 is available as new and original in factory packing. Petro Auto Tech offers this item with a 12-month factory warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.