Bently Nevada 3300/50 Tachometer Monitor Module

The Bently Nevada 3300/50 Tachometer Monitor Module is designed for high-precision monitoring of shaft rotational speeds, ensuring optimal machinery performance and safety. It is part of the trusted 3300 series, which is widely used in industrial applications such as power generation, oil & gas, and other heavy machinery sectors. The module is crucial for monitoring under-speed, over-speed, and zero-speed conditions, offering real-time alarms and protective measures to safeguard equipment.

General Info:

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Number: 3300/50
• Type: Tachometer Monitor Module
• Application: Speed and vibration monitoring for machinery protection
• Monitoring Function: Monitors rotational speed, triggers alarms, and issues shutdown signals to protect machinery from critical conditions
• Compatibility: Designed for use with Bently Nevada’s transducers, including proximity probes, velocity sensors, and accelerometers

Features:

• High-Precision Speed Detection:
  The 3300/50 provides accurate speed monitoring with a resolution of up to 1 RPM (Revolutions Per Minute), ensuring precise detection of any speed variations. This precision is critical for detecting speed anomalies in turbine shafts, compressors, and other rotating machinery.

• Customizable Frequency Range:
  The module features a selectable frequency range from 1 Hz to 10 kHz, allowing it to be configured for different machinery types, from low-speed fans to high-speed turbines. This makes the 3300/50 adaptable to a variety of industrial environments, ensuring optimal protection for machines operating at varying speeds.

• Analog Output Signal:
  Continuous 4-20 mA analog output that provides real-time feedback to control systems such as SCADA or DCS. This output is proportional to the monitored speed, enabling seamless integration into broader plant monitoring networks. The output is typically configured to monitor key machinery parameters and ensure early detection of any performance deviations.

• Digital Trip Signal Outputs:
  The module has two configurable relay outputs, which can be used to trigger alarms or initiate machinery shutdown in response to over-speed, under-speed, or zero-speed conditions. These outputs are typically rated at 5 A at 250 VAC or 30 VDC, ensuring robust and reliable protective actions when critical thresholds are breached.

• Broad Input Voltage Range:
  The 3300/50 supports a wide input range, typically ±10 V peak, accommodating a variety of transducers and sensor types. This flexibility allows the module to interface with different measurement devices, making it suitable for use in diverse machinery setups.

• Rapid Response Time:
  The module features a fast response time of less than 100 milliseconds, ensuring immediate action when abnormal speed conditions are detected. This quick response is essential for preventing equipment damage due to speed variations, especially in high-risk environments.

• Environmental Durability:
  Designed to operate in harsh industrial environments, the 3300/50 can handle ambient temperatures ranging from -30°C to +65°C and offers protection against dust, humidity, and vibrations. This ensures long-term reliable performance even in demanding operational conditions.

Technical Specifications:

• Input Voltage Range: ±10 V peak, compatible with a wide range of sensors
• Frequency Range: Selectable from 1 Hz to 10 kHz
• Analog Output: 4-20 mA current loop, proportional to rotational speed
• Digital Outputs:
  • Two relay outputs, rated 5 A at 250 VAC or 30 VDC, for triggering alarms or shutdowns
• Response Time: < 100 ms
• Power Requirements: 24 VDC typical
• Operating Temperature: -30°C to +65°C
• Transducer Compatibility: Proximity probes, velocity sensors, and accelerometers

Dimensions:

• Width: 5.1 cm
• Depth: 33.0 cm
• Height: 20.3 cm
• Weight: 1.5 kg (3 lbs)