Introduction

The Bently Nevada 990-05-XX-01-05 165335-01 is a loop-powered vibration transmitter engineered for reliable condition monitoring of industrial rotating machinery. It converts mechanical vibration signals into a standardized 4–20 mA output for direct integration into automation and protection systems.

Its compact integrated architecture eliminates the need for external signal conditioning modules, reducing system complexity while maintaining stable and accurate vibration measurement performance. This model is widely used in OEM applications where space efficiency, installation simplicity, and long-term reliability are essential.

Technical Specifications

Parameter	Specification
Product Model	990-05-XX-01-05
Configuration Code	165335-01
Full-scale Range	0–5 mils pp (0–125 μm pp)
System Length	5 m or 7 m (configuration dependent)
Mounting Type	DIN rail / bulkhead mounting
Output Signal	4–20 mA proportional vibration signal
Power Supply	2-wire loop powered
Input Voltage	12–35 VDC
Operating Temperature	-35°C to +85°C
Storage Temperature	-51°C to +100°C
Housing Material	Industrial-grade metal enclosure
Dimensions	100.1 × 73.9 × 53.3 mm
Weight	0.43 kg (0.95 lb)

Applications

The Bently Nevada 990-05-XX-01-05 165335-01 Vibration Transmitter is designed for continuous vibration monitoring of rotating machinery in industrial automation systems where reliable signal stability, compact installation, and long-term operational performance are required.

Typical applications include:

Centrifugal and reciprocating compressors
Industrial pump systems and booster stations
HVAC ventilation and air handling units
Electric motors and drive assemblies
Turbine auxiliary systems
Petrochemical and refinery rotating machinery
Marine and offshore mechanical systems

It is widely adopted in OEM machinery integration scenarios requiring standardized 4–20 mA output for control and protection systems.

Advantages

Integrated vibration sensing and signal conditioning in a compact loop-powered design
Direct 4–20 mA output for seamless PLC and DCS integration
Reduced wiring complexity and simplified installation
Stable long-term signal performance for continuous monitoring applications
High immunity to industrial electromagnetic interference (EMI)
OEM-optimized configuration for space-constrained equipment layouts
Supports predictive maintenance and condition-based monitoring strategies
Proven reliability in harsh industrial environments

Technical FAQs

Q1: What is the function of the 165335-01 code?
It is an internal OEM configuration or manufacturing identifier associated with a specific variant of the 990 vibration transmitter platform.

Q2: What does “XX” represent in this model?
It indicates configurable system length options, typically 5 m or 7 m depending on the assembly configuration.

Q3: What output signal does this transmitter provide?
It provides a 4–20 mA analog output proportional to vibration amplitude.

Q4: What does the “05” represent?
It indicates a 0–5 mils peak-to-peak full-scale vibration range.

Q5: Does it require external signal conditioning?
No, signal conditioning is fully integrated within the transmitter.

Q6: What equipment is it typically used on?
It is used on pumps, compressors, motors, fans, and other rotating machinery.

Q7: Can it operate in continuous monitoring mode?
Yes, it is designed for continuous vibration trend monitoring.

Q8: Is it compatible with PLC and DCS systems?
Yes, it directly interfaces with standard industrial control system analog inputs.

Q9: Does it support waveform diagnostics?
No, it focuses on overall vibration amplitude rather than waveform-level analysis.

Q10: Is it suitable for harsh industrial environments?
Yes, it is designed for vibration, humidity, and temperature variation conditions in industrial settings.

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