72311-02-04-01-01-01-15
May 22, 2026

72311-02-04-01-01-01-15

Product Overview The Bentley 72311-02-04-01-01-01-15 belongs to the 3500/42M four-channel displacement monitoring module. It has a full-height card-type structure and is compatible with the 3500 system rack. It is equipped with an eddy current sensor to collect signals, capable of monitoring shaft displacement, temperature difference, and shaft eccentricity parameters. It features multi-level alarm interlock functions, supports parameter configuration and data upload, and is widely used in rotating equipment such as steam turbines, compressors, and generator sets for condition monitoring of equipment status.

Description

Technical Specifications

Powered by the chassis backplane, occupying the full-height installation slots of the entire machine

Four independent monitoring channels, compatible with the 3300XL series eddy current probes

Stable measurement accuracy, with a range that meets the requirements for monitoring the displacement and thermal expansion of the unit

Integrated alarm relays and communication interfaces, enabling remote signal transmission and parameter modification

Operating temperature range: 0°C to 60°C, storage temperature range: -40°C to 85°C, featuring dust-proof and shock-resistant performance

Installation and wiring

Align the module with the card slot, insert it into the chassis and lock it to ensure reliable contact of the backplane bus

Connect the sensor cables in sequence according to the channel to the corresponding ports, with the signal lines and power lines separated for wiring

Connect the alarm circuit and communication lines in accordance with specifications, and secure the terminals without loosening

Complete the installation and wiring, conduct a comprehensive inspection, confirm the wiring is correct, then power on and debug

Maintenance and servicing

Regularly check the status of the operation indicator lights, observe the monitoring values to be stable without abnormal fluctuations

Regularly tighten the connection terminals, check for any damage, aging, dust, oil stains in the cables

Time to calibrate the measurement accuracy, test the reliability of the alarm trigger action

Avoid damaging the interface by frequently plugging and unplugging the cards, store the idle components in a dry and ventilated environment Fault diagnosis

There is no monitoring data for the channel. Check the power supply status, slot contact, and sensor line connection and disconnection.

The numerical fluctuations have a large deviation. Adjust the installation gap of the probe and optimize the shielding and grounding effect of the lines.

The alarm start and stop are abnormal. Verify the threshold setting values, and check the conduction status of the relay contacts.

The communication connection is interrupted. Check the wiring of the lines, and verify the communication port and configuration parameters.


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