Description
Product Introduction & Engineering Value
During startup or troubleshooting, maintenance engineers often need immediate access to machine status without connecting a laptop to the rack. The BENTLY 3500/93 System Display Unit (135785-01) provides a dedicated graphical interface for viewing operating data, alarms, relay status, and system events directly from the 3500 Machinery Protection System.
The display communicates with the Display Interface Module (DIM) and supports several mounting configurations, allowing installation directly on the rack front or remotely within a control cabinet. This flexibility makes it suitable for power generation, petrochemical, and other critical rotating equipment applications requiring continuous machinery supervision.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | BENTLY Nevada |
| Model | 3500/93 |
| Part Number | 135785-01 |
| Product Type | System Display Unit (Non-Backlighted) |
| Display Type | Graphical LCD |
| Display Function | Displays alarms, events, monitor values, relay status, Keyphasor and tachometer information |
| Compatible System | BENTLY Nevada 3500 Machinery Protection System |
| Configuration Software | 3500 Rack Configuration Software |
| Mounting Options | Face Mount, 19-inch Rack Mount, Panel Mount, Independent Mount |
| Communication | Via Display Interface Module (DIM) |
| Compliance | Designed to support API 670 machinery protection systems |
Field Application & The “Trench” Experience
A gas turbine package experienced intermittent vibration alarms during commissioning. Although the protection rack continued operating correctly, technicians repeatedly connected engineering laptops to review machine status, slowing the troubleshooting process.
Installing a 3500/93 135785-01 on the control cabinet door allowed operators to monitor vibration values, relay states, and alarm history in real time. During subsequent startup testing, the maintenance team identified an incorrectly configured alarm delay within minutes, reducing commissioning time and avoiding unnecessary machine trips.
Typical applications include:
- Steam turbine local machinery protection displays
- Compressor control room monitoring stations
- API 670 rotating equipment monitoring panels
3500/93 135785-01
3500/93 135785-01
Transparency SOP: QA & Testing
Every New Surplus or professionally refurbished 135785-01 is processed through a documented inspection program before shipment.
- Verify part number, hardware revision, and display version.
- Inspect LCD panel, keypad, enclosure, and connectors.
- Confirm communication with a compatible Display Interface Module.
- Verify screen functionality, menu navigation, and alarm display.
- Perform extended power-on observation to identify intermittent display faults.
- Package in anti-static materials with serialized inspection records.
The Veteran’s Tech Trap Guide
⚠️ Don’t confuse the Display Unit with the Display Interface Module (DIM). The 135785-01 is the display itself; it requires the appropriate DIM to communicate with the 3500 rack.
⚠️ Face mounting has a specific requirement. If you choose the face-mount configuration, the DIM must be installed in Slot 15 of a full-size 3500 rack. This option is not supported on the 3500 Mini-Rack.
PRO TIP: Before replacing the display, record the mounting configuration and cable routing. Remote-mounted displays can use extension cables, and replacing the display without documenting the existing installation may increase downtime during reassembly.
Dynamic FAQ
Q1. What is the function of the 3500/93 135785-01?
The 135785-01 is a non-backlighted System Display Unit that provides a graphical interface for viewing machinery protection data, alarms, events, and module status within the BENTLY Nevada 3500 System.
Q2. Can the display be mounted remotely?
Yes. The 3500/93 supports face mounting, 19-inch rack mounting, panel mounting, and independent wall mounting, allowing installation near operators or inside remote control cabinets.
Q3. Is 135785-01 a backlighted display?
No. 135785-01 is the non-backlighted display version. The 135785-02 is the corresponding backlighted display unit.
Q4. Does the display communicate directly with monitoring modules?
No. Communication occurs through the 3500 Display Interface Module (DIM), which exchanges data between the display and the 3500 rack.
Q5. How is New Surplus inventory verified?
Every display unit undergoes part number verification, LCD inspection, communication testing, keypad validation, connector examination, and power-on functional testing before shipment.
Q6. What should be checked before replacing the display?
Confirm the mounting option, DIM compatibility, extension cable length, power configuration, and rack installation type (full-size rack or Mini-Rack) before installing the replacement display.
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