21000-33-10-00-070-04-02 | Bently Nevada 1.0 m Cable Proximity Probe Housing Assembly

Introduction to the Bently Nevada 21000-33-10-00-070-04-02

When machinery vibration threatens uptime, the 21000-33-10-00-070-04-02 provides a robust solution. This Bently Nevada proximity probe housing assembly is engineered for hazardous area monitoring. It combines an aluminum body with a 304 stainless steel sleeve for durability. The assembly includes a 3300 XL 8mm probe with a connector protector. Its 1.0 m (39 in) probe cable offers flexibility in installation. This model is part of the trusted 21000 series, designed for critical rotating equipment.

Key Features and Technical Specifications

The 21000-33-10-00-070-04-02 delivers precise measurement capabilities. Below are its core specs:

• Probe Option: 3300 XL 8mm probe with connector protector
• Probe Cable Length: 1.0 m (39 in)
• Probe Penetration: 7.0 in
• Fitting Option: One 3/4-14 NPT plug
• Mounting Thread: 3/4-14 NPT
• Material: Aluminum body with 304 stainless steel sleeve
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm)

A standout feature is the 7.0 in probe penetration, which allows deep insertion into bearing housings. This ensures accurate vibration readings even in thick-walled machinery. The CSA Type 4 enclosure rating means it withstands harsh environments.

Applications and Use Cases

In petrochemical plants, the 21000-33-10-00-070-04-02 monitors compressor vibrations. It also excels in turbine overspeed protection systems. For pump condition monitoring, its 8mm probe detects early bearing faults. The explosion-proof rating makes it ideal for gas processing facilities. Additionally, it meets API 670 standards for externally mounted probes.

Installation and Setup Guidance

Mount the housing using the 3/4-14 NPT thread for secure attachment. Ensure the probe sleeve length matches the required penetration depth. Use the provided 3/4-14 NPT plug to seal unused conduit ports. Verify the cable length of 1.0 m suits your routing path. Always follow Bently Nevada's manual for proper gap setting.

Maintenance and Reliability Tips

Inspect the O-rings and thread seal annually to prevent moisture ingress. Check the dome cover tightness after any maintenance. The aluminum body resists corrosion in most industrial atmospheres. For long life, avoid exceeding the maximum (C)+(D) dimension of 32.9 in. Regular verification of probe output ensures consistent performance.

Compatibility and Integration

This housing works with Bently Nevada 3300 XL series proximity probes. It integrates seamlessly with 3500 monitoring systems. The CSA approval allows use in Class I, Division 1 hazardous areas. For intrinsically safe systems, pair it with approved proximity probes.

Frequently Asked Questions about the 21000-33-10-00-070-04-02

Q: What is the probe cable length on this model?

A: The probe cable length is 1.0 m (39 in), as indicated by suffix code 10.

Q: Is this housing suitable for hazardous locations?

A: Yes, it is CSA approved for explosion-proof use in hazardous areas.

Q: What mounting thread does the 21000-33-10-00-070-04-02 use?

A: It uses a 3/4-14 NPT mounting thread, specified by suffix code -02.

Q: What is the weight of this assembly?

A: The typical weight is 1.1 kg (2.4 lb) without fittings.

Q: Does it include a standoff adapter?

A: No, the standoff adapter option is -00, meaning no standoff adapter is included.

Product Support and Availability

Petro Auto Tech stocks the 21000-33-10-00-070-04-02 as new and original in factory packing. It ships with a 12-month factory warranty. Contact Petro Auto Tech for current lead times and lifecycle status.