Bently Nevada 3300/53-03-02-00-60-20-00-00-00 Vibration Monitor

Dual-Channel Velocity and Acceleration Measurement Module

The Bently Nevada 3300/53-03-02-00-60-20-00-00-00 vibration monitor provides continuous surveillance of machinery vibration levels. This module accepts input signals from velocity transducers or accelerometers for comprehensive condition monitoring. It delivers real-time vibration data for steam turbines, compressors, and centrifugal pumps. The system enables early detection of bearing wear, unbalance, and misalignment issues.

Technical Specifications

Parameter	Specification
Model Number	3300/53-03-02-00-60-20-00-00-00
Brand	Bently Nevada
Category	Vibration Monitor
Channels	2 independent
Sensor Input	Velocity transducer or accelerometer
Input Range	+10.0 V to -24.0 V
Measurement Range	0–100 µm or 0–250 µm pk-pk
Frequency Response	10 Hz to 1 kHz
Amplitude Accuracy	±5% of reading or ±0.5% FSD
Power Consumption	5.0 W maximum
Input Impedance	20 kΩ minimum
Relay Output	4 Amp @ 24 Vdc resistive
Alarm Configuration	2-out-of-2 or 2-out-of-3 voting
Operating Temperature	-30°C to +65°C
Storage Temperature	-40°C to +85°C
Dimensions (HxWxD)	241.3 x 24.4 x 241.9 mm
Weight	0.82 kg
Country of Origin	USA

Dual-Channel Measurement Architecture

This vibration monitor processes signals from two independent sensor channels simultaneously. Each channel provides separate alarm and trip settings for flexible configuration. The module supports both velocity transducers and accelerometers for broad application coverage. This dual-channel design enables comparison measurements across different bearing locations.

High-Precision Signal Processing

The internal circuitry delivers ±5% reading accuracy or ±0.5% full-scale deflection. Its wide input range accommodates various sensor sensitivities commonly found in the field. The frequency response from 10 Hz to 1 kHz captures both low-speed and high-speed machinery vibrations. Consequently, you can apply this module across diverse rotating equipment types.

Configurable Alarm Logic

The system supports 2-out-of-2 or 2-out-of-3 voting configurations for enhanced fault tolerance. This voting logic significantly reduces nuisance trip events while maintaining robust protection. Each relay handles 4 Amps at 24 Vdc for direct control of external devices. You can program alarm setpoints individually for each channel.

Rugged Environmental Design

This monitor withstands extreme industrial conditions without performance compromise. Its wide operating temperature range from -30°C to +65°C suits most plant environments. The compact 241.3 mm height and 24.4 mm width simplify installation in crowded control panels. Additionally, the lightweight 0.82 kg design facilitates easy mounting and servicing.

Application Versatility

This module serves steam turbines, gas turbines, compressors, pumps, and fans. Its velocity and acceleration measurement capability covers both bearing housing and casing applications. Operators in power generation, oil and gas, and manufacturing facilities benefit from this monitor. The system’s proven reliability reduces unplanned downtime and extends asset service life.