Where It Excels in Industrial Use

• Armored Velocity Sensor Signal Connection
The Bently Nevada 84661-25 Velomitor Interconnect Cable is designed to provide a rugged electrical connection between Bently Nevada Velomitor piezo-velocity sensors and machinery monitoring systems. It uses a two-conductor twisted, shielded 22 AWG armored cable with a moisture-resistant female socket connector at one end and terminal lugs at the other.

• Critical Rotating Machinery Monitoring
This cable supports vibration monitoring applications for turbines, compressors, pumps, motors, generators, and other rotating equipment where reliable velocity measurement is required for machinery protection and predictive maintenance.

• Harsh Industrial Environments
The armored construction provides additional mechanical protection against abrasion and physical damage, while the shielded design helps reduce electromagnetic interference and maintain vibration signal integrity.

• Direct Velomitor Sensor-to-Monitor Applications
The 84661 series is intended for use with Velomitor sensor installations and is not intended for use with the 21128 Velocity Transducer Housing Assembly (the 89477 cable series is used for 21128 housing applications). 

Key Strengths at a Glance

• 25 ft (≈7.6 m) Armored Interconnect Cable

• Two-Conductor Twisted Shielded 22 AWG Cable

• Armored Mechanical Protection for Industrial Installations

• Moisture-Resistant Female Socket Connector

• Terminal Lug Termination for Monitor Connection

• Designed for Velomitor Piezo-Velocity Sensor Systems

Technical FAQs

1. What is the primary function of the Bently Nevada 84661-25?
It provides a protected signal connection between a Velomitor velocity sensor and a compatible machinery monitoring system.

2. What does the "-25" suffix indicate?
The "-25" identifies the standard cable length of 25 ft (approximately 7.6 m).

3. What cable construction is used?
The cable uses a two-conductor twisted, shielded 22 AWG armored design for reliable industrial signal transmission.

4. What connector is installed on the sensor side?
It includes a moisture-resistant female socket connector for connection to compatible Velomitor sensor assemblies.

5. What is connected at the monitor end?
The cable terminates with terminal lugs for connection to monitoring equipment.

6. Why is the cable armored?
The armor improves resistance to mechanical damage, abrasion, and difficult field installation conditions.

7. Is the 84661-25 compatible with the 21128 Velocity Transducer Housing?
No. The 84661 series is for direct Velomitor sensor-to-monitor applications. The 89477 series is used when connecting through the 21128 housing assembly.

8. Does the cable contain electronic components?
No. It is a passive interconnect cable used for signal transmission.

9. What operating environment is it designed for?
It is designed for industrial vibration monitoring installations, with reported operating temperature capability around -40°C to +85°C.

10. What should be verified before replacement?
Confirm:

• Velomitor sensor compatibility
• Required cable length
• Connector style
• Armor requirement
• Monitoring system wiring configuration