Product Overview
When monitoring critical rotating machinery in hazardous environments, the Bently Nevada 107770-03-02 provides a reliable, pre-assembled solution. This Velocity Transducer Housing combines the proven 330500 Velomitor Sensor with a 21128 Housing, factory assembled and tested. It carries CENELEC approval for Zone 1, Group IIC hazardous area applications, ensuring safe operation in explosive atmospheres.
Technical Specifications
The 107770-03-02 features a 1/2-14 NPT mounting thread (option 03) and a 1/2-14 NPT explosion-proof cable exit fitting (option 02). This configuration simplifies installation and maintains the integrity of the hazardous area enclosure. The unit meets RoHS Directive 2011/65/EU, confirming compliance with environmental standards.
Industry Applications
This transducer housing is ideal for vibration monitoring on compressors, turbines, pumps, and fans located in Zone 1 or Zone 2 hazardous areas. The CENELEC approval makes it suitable for oil and gas, chemical, and petrochemical facilities where explosive gases or vapors may be present. The factory assembly reduces field wiring errors and speeds up commissioning.
Installation & Setup Guidance
Mount the 107770-03-02 using the 1/2-14 NPT thread into a suitable mounting boss on the machine casing. Ensure the cable exit fitting is properly tightened to maintain the explosion-proof seal. For Zone 0/1 installations, connect to equipment meeting the listed entity parameters and use cable type A or B per EN 60079-25. For Zone 2, ensure supply parameters do not exceed the values in the entity tables.
Maintenance & Reliability
The factory-assembled design minimizes potential leak paths and reduces maintenance needs. Periodically inspect the cable exit fitting and mounting thread for signs of corrosion or damage. Verify that the hazardous area certification remains valid and that all connections remain tight. Routine checks help extend service life and prevent unplanned downtime.
Compatibility & Integration
This housing is designed to work with the Bently Nevada 330500 Velomitor Sensor, which is pre-installed at the factory. It integrates seamlessly with Bently Nevada monitoring systems and other compatible vibration monitoring equipment. The 1/2-14 NPT connections are industry standard, simplifying integration into existing installations.
Selection Guide & Purchasing Advice
Before ordering, confirm that your application requires the 107770-03-02 configuration: 1/2-14 NPT mounting thread and 1/2-14 NPT explosion-proof cable exit. Verify that the CENELEC Zone 1, Group IIC rating matches your hazardous area classification. SpareTechPLC stocks this unit as new and original in factory packing, backed by a 12-month warranty. Contact our team to check current availability and lead times.
Frequently Asked Questions
Q: What is the difference between the 107770-03-02 and a standard Velomitor sensor?
A: The 107770-03-02 is a factory-assembled combination of the 330500 Velomitor Sensor and a 21128 Housing, pre-tested and certified for CENELEC hazardous areas. This reduces installation complexity and ensures compliance.
Q: Can I use this housing in Zone 0 applications?
A: Yes, the unit is approved for Zone 0/1 when connected to equipment meeting the listed entity parameters and using appropriate cable types per EN 60079-25.
Q: What cable type is required for Zone 0/1 installations?
A: Cable type A or B in compliance with EN 60079-25 must be used, respecting the cable parameters listed with the entity parameters.
Q: Is the 107770-03-02 RoHS compliant?
A: Yes, it complies with RoHS Directive 2011/65/EU.
Q: What is the warranty period for this product?
A: SpareTechPLC provides a 12-month factory warranty on new and original units.
