Bently Nevada 3300/53-03-02-00-40-20-00-00-00

3300 Series Two-Channel Vibration Monitoring Module

The 3300/53-03-02-00-40-20-00-00-00 offers dual-channel vibration measurement for two independent transducer signals. This device processes input from accelerometers or velocity sensors with high precision. It then compares each signal against user-defined alarm and danger thresholds. The monitor also activates a dedicated relay output when any channel exceeds its setpoint.

Key Technical Specifications

Parameter	Specification
Model	3300/53-03-02-00-40-20-00-00-00
Series	3300 Series
Input Channels	Dual independent transducer inputs
Transducer Type	Accepts accelerometer or velocity sensor signals
Power Supply	Operates on +24 Vdc at 180 mA nominal
Output Signals	Two buffered outputs plus three relay contacts
Alarm Relays	Includes two alarm relays and one danger relay
Frequency Response	Spans from 1.0 Hz to 10.0 kHz
Input Impedance	Offers 100 kΩ impedance per channel
Time Delay Range	Adjustable from 0.1 to 10.0 seconds
Operating Temperature	Functions from -20°C to +65°C
Storage Temperature	Withstands -40°C to +85°C
Dimensions	Measures 241.3 mm x 25.4 mm x 152.4 mm
Weight	Weighs approximately 1.2 kg
Mounting	Supports standard 19-inch rack installation
Termination	Uses plug-in screw terminal blocks
LED Indicators	Displays OK, ALERT, and DANGER per channel

Precision Signal Processing

This monitor employs a high-resolution analog-to-digital converter for accurate measurement. It filters out high-frequency noise to ensure stable readings. The device then routes the processed signal to both the display and the relay logic. Each channel operates independently, so a single fault does not compromise the other. The monitor also provides a buffered output for external data acquisition systems.

Installation and Configuration

Mount the 3300/53-03-02-00-40-20-00-00-00 securely within the equipment rack first. Connect the transducer cables to the designated input terminals next. After that, supply +24 Vdc power to the module and verify the LED status. You can adjust the alarm setpoints using the front-panel potentiometers. Subsequently, set the time delay to prevent false triggers during startup transients.

Reliability and Routine Maintenance

This module stores all alarm settings and configuration data in non-volatile memory. Therefore, you do not lose calibration values after a power interruption. We recommend you test both channels with a calibrated signal source annually. You should also check the relay contact operation to confirm proper switching behavior.