• Bently Nevada 3300/47-XX-03-01-00
  • Bently Nevada 3300/47-XX-03-01-00
  • Bently Nevada 3300/47-XX-03-01-00
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Bently Nevada 3300/47-XX-03-01-00 Differential Expansion Monitor

Bently Nevada 3300/47-XX-03-01-00 Differential Expansion Monitor

Description

The Bently Nevada 3300/47 Differential Expansion Monitor is a specialized rack-mounted module engineered to track the relative thermal expansion between a turbine rotor and its casing. By monitoring this critical...

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SKU: 3300/47-XX-03-01-00
Proveedora: Bently Nevada
tipo: Differential Expansion Monitor
Related Series:

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Description

The Bently Nevada 3300/47 Differential Expansion Monitor is a specialized rack-mounted module engineered to track the relative thermal expansion between a turbine rotor and its casing. By monitoring this critical clearance, the module helps prevent mechanical interference and potential damage in steam turbines and large rotating machinery. The unit provides continuous signal processing and compares real-time expansion data against pre-configured alarm setpoints.

Features

  • Designed for integration within the Bently Nevada 3300 monitoring system series.
  • Supports proximity probe inputs via Proximitor sensors for high-precision displacement measurement.
  • Includes dual relay outputs to facilitate Alert and Danger alarm logic.
  • Provides visual status indication via front-panel LEDs for OK, Bypass, Alert, and Danger conditions.
  • Configurable signal conditioning to match specific turbine mechanical requirements.

Technical Specifications

Model 3300/47-XX-03-01-00
Brand Bently Nevada
Series 3300
Power Consumption ~1.5 W
Operating Temperature 0 to 60 degC
Sensitivity 200 mV/mil (8 V/mm) or 100 mV/mil (4 V/mm)
Signal Accuracy +/- 0.33% typical (+/- 1% max at 25 degC)
Output Signals +4 to +20 mA, +1 to +5 VDC, 0 to -10 VDC

Installation Guidelines

  • Ensure the 3300 rack is powered down before inserting or removing the module to prevent electrical damage.
  • The module must be installed in a clean, dry environment within the specified operating temperature range.
  • Use shielded cabling for proximity probe inputs to minimize EMI interference.
  • Verify that the module is fully seated in the rack backplane to ensure reliable communication and power distribution.
  • Follow standard ESD handling procedures when touching internal circuitry or connectors.

FAQ

What is the primary function of the 3300/47 monitor?

This module is used to measure the differential expansion between a turbine rotor and the casing, which is essential for protecting rotating machinery from mechanical contact due to thermal growth.

Does this module include relay outputs?

Yes, the -01 option indicates the inclusion of dual relay outputs for Alert and Danger alarm conditions.

What type of sensors does this monitor support?

The -03 configuration is designed for use with standard Bently Nevada proximity probes and Proximitor sensors.