Product Overview
When selecting a velocity transducer housing for hazardous environments, the Bently Nevada 107770-02-03 delivers a factory-preinstalled combination of the 330500 Velomitor sensor and a 21128 housing. This unit is rated for CENELEC Zone 1, Group IIC hazardous area applications, making it a reliable choice for demanding industrial settings.
Technical Specifications
The 107770-02-03 model includes specific mounting and cable exit options:
- Mounting Thread Option: 02 = 3/4-14 NPT
- Cable Exit Fitting Option: 03 = 1/2-14 NPT explosion-proof with cable gland seal
These parameters ensure secure installation and compliance with hazardous area requirements. The housing is CENELEC approved, meeting ATEX/IECEx standards for Zone 0/1 and Zone 2 conditions.
Industry Applications
This velocity transducer housing is ideal for monitoring vibration in rotating machinery such as turbines, compressors, and pumps in oil and gas, petrochemical, and power generation facilities. Its CENELEC Zone 1, Group IIC rating allows safe operation in explosive gas atmospheres. For example, in a refinery, the 107770-02-03 provides reliable vibration data to protect critical assets.
Installation & Setup Guidance
Mount the housing using the 3/4-14 NPT thread option. Connect the cable via the 1/2-14 NPT explosion-proof fitting with cable gland seal. For Zone 0/1 installations, ensure the connecting equipment meets the listed entity parameters and use cable type A or B per EN 60079-25. For Zone 2, verify supply electrical parameters do not exceed the values in the provided tables.
Maintenance & Reliability
Regularly inspect the cable gland seal and mounting threads for signs of wear or corrosion. The factory-preinstalled design reduces assembly errors and enhances long-term reliability. Following manufacturer guidelines for periodic testing ensures continued safe operation in hazardous areas.
Selection Guide & Purchasing Advice
Before ordering, confirm your application requires a CENELEC approved housing for Zone 1, Group IIC. Verify the mounting thread (3/4-14 NPT) and cable exit (1/2-14 NPT) match your installation. SpareTechPLC supplies the Bently Nevada 107770-02-03 as new and original in factory packing with a 12-month warranty. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
Q: What is the difference between the 107770-02-03 and other versions?
A: The 107770-02-03 combines a 330500 Velomitor sensor with a 21128 housing, preinstalled at the factory, and includes a 3/4-14 NPT mounting thread and 1/2-14 NPT explosion-proof cable fitting.
Q: Is this housing suitable for Zone 0 hazardous areas?
A: Yes, it is rated for CENELEC Zone 1, Group IIC. For Zone 0/1, ensure the connected equipment meets the entity parameters and use appropriate cable types.
Q: What cable types are allowed 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: Does the 107770-02-03 comply with RoHS?
A: Yes, it complies with RoHS Directive 2011/65/EU.
Q: What warranty does SpareTechPLC offer?
A: SpareTechPLC provides a 12-month factory warranty on this new and original product.
