Product Overview
The Bently Nevada 107770-04-03 A or B (in compliance with EN) Housing is a pre-assembled velocity transducer unit designed for demanding hazardous environments. It combines the 330500 Velomitor Sensor with a 21128 Housing, factory-mounted for reliability. This CENELEC approved model is built for easy replacement or upgrade of legacy transducer setups, offering explosion-proof protection and compliance with ATEX/IECEx standards.
Real-World Applications
In oil and gas refineries, the 107770-04-03 monitors vibration on rotating machinery like pumps and compressors in Zone 1 and Zone 2 areas. Chemical plants rely on its CENELEC Group IIC certification for safe operation in explosive atmospheres. Power generation facilities use this unit to upgrade older transducer housings, reducing maintenance downtime and improving safety compliance.
Installation & Setup
Mount the 107770-04-03 using the 1/2-14 BSP mounting thread option (code 04). The cable exit fitting is 1/2-14 NPT explosion-proof with a cable gland seal (code 03). Ensure the unit is properly grounded per EN 60079-25 for Zone 0/1 or Zone 2 installations. For original factory instructions, contact UBEST Automation.
Maintenance & Reliability
Inspect the housing and cable gland for corrosion or damage quarterly in harsh environments. The RoHS-compliant design (Directive 2011/65/EU) ensures long-term environmental reliability. Replacing older transducer assemblies with the 107770-04-03 reduces spare parts complexity and extends service life.
Selection Guide & Purchasing Advice
When ordering, specify the mounting thread and cable exit options: 04 for 1/2-14 BSP and 03 for 1/2-14 NPT. Verify your zone rating (Zone 0/1 or 2) to ensure safe use. For detailed specifications not listed here, contact UBEST Automation at ubest101.myshopify.com for datasheets and technical support.