Overview
Configured for local display and operator access within the Bently Nevada 3300 DSDM system, the Bently Nevada 87900-01 (87900 Front Panel Display Module) provides a direct rack-level interface for viewing system data, parameters, and alarm information.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 87900-01 |
| Brand | Bently Nevada |
| Product Type | Front Panel Display Module |
| System Compatibility | Bently Nevada 3300 DSDM system |
| Display Type | Backlit LCD |
| Operating Voltage | 24 VDC nominal |
| Operating Voltage Range | 18-32 VDC |
| Power Consumption | <= 6 W |
| Operating Temp | -40 deg C to +70 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Humidity | 0% to 95% RH, non-condensing |
| Communication | Interface with the compatible 3300 system backplane architecture |
| Status Indication | Integrated status LEDs |
Mechanical Monitoring Data Interface
The 87900-01 presents monitoring information generated by the compatible 3300 DSDM system through a local front-panel interface. The LCD provides character-based visualization of available system values, parameters, and alarm information.
The module does not function as an independent proximity probe conditioner. Instead, it operates as a display interface within the existing monitoring architecture. Therefore, probe scaling, gap voltage validation, and rotor-dynamics processing remain functions of the associated monitoring hardware.
The integrated status LEDs provide local indication of defined system states. Operators can use the front-panel interface to inspect available information without depending solely on an external computer interface.
Frequently Asked Questions
Q: Does the 87900-01 provide direct eddy-current probe input?
A: No. The supplied data identifies the 87900-01 as a front panel display module. It does not specify direct probe input circuitry.
Q: What power supply does the module require?
A: The supplied specification states 24 VDC nominal operation with an 18-32 VDC range and power consumption of no more than 6 W.
Q: Can the module operate independently of the 3300 DSDM architecture?
A: The supplied data specifies operation through the compatible 3300 system backplane architecture. It does not define the 87900-01 as a standalone monitoring unit.
Field Installation Guidelines
Install the 87900-01 in the designated compatible 3300 DSDM hardware position and verify mechanical engagement before energizing the system.
Confirm the available DC supply before connection. Maintain the specified 18-32 VDC operating range and provide suitable industrial overcurrent protection according to the host system installation design.
Route power and signal wiring separately where practical to reduce conducted and radiated interference. Keep display and communication wiring away from high-current switching conductors and high-energy electromagnetic sources.
Connect the module only to the compatible system backplane architecture. Verify connector alignment and seating before applying power.
For shielded external wiring associated with the host monitoring system, terminate cable shields according to the system grounding design. Avoid creating unintended ground loops.
After installation, apply system power and verify the LCD and status indicators. Confirm that the module receives the expected system information through the backplane before returning the monitoring rack to service.
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