Description
Product Core Brief
- Model: 3500/93
- Brand: BENTLY NEVADA
- Series: 3500 Machinery Protection System
- Core Function: Provides local visualization of rack status, alarms, and channel data.
- Product Type: System Display Device I/O Module
- Key Specs: LCD Display | Max 15.5 W Power | API 670 Compliant
- Condition: New Original (New Surplus)

BENTLY 3500/93
Product Introduction
BENTLY 3500/93 is a system display device designed for the 3500 Machinery Protection System. It provides real-time visualization of system events, alarm lists, and channel data directly at the rack location.
Unlike the 3500/94 VGA or 3500/95 workstation units, this module features a compact LCD with integrated LEDs. It can be mounted directly on the rack front panel or remotely up to 4000 feet when using an external power supply.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | System Display Device |
| Typical Part Number | 135785-02C |
| Display Type | Backlit LCD (Graphics & Text) |
| Max Power Consumption | 15.5 W (Display Unit + DIM) |
| Standard Cable Distance | Up to 100 ft (30 m) |
| Extended Cable Distance | Up to 4000 ft (1219 m) with external power |
| External Power Options | 115 Vac or 230 Vac |
| Operating Temperature | -30 °C to +65 °C |
| Storage Temperature | -40 °C to +85 °C |
| Compliance | API 670 |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.

BENTLY 3500/93
Replacement Pitfall Guide
❗ Part Number Matching: The 3500/93 requires strict matching of the specific part number (e.g., 135785-02C). Even minor interface or configuration differences can cause compatibility issues with the Display Interface Module (DIM).
❗ Cable Distance Limits: Standard internal power supports cable runs up to 100 feet. If your installation requires remote mounting beyond this distance, you must use an external power adapter assembly to extend the range to 4000 feet.
❗ Rack Slot Allocation: The Display Interface Module (DIM) occupies one slot in the 3500 rack. Ensure you have an available slot and that it is installed in the correct position (typically slot 15 for full-height frames).
❗ Software Configuration: Display content, alarm thresholds, and interface layouts must be configured using the 3500 Rack Configuration Software. An unconfigured display will only show basic system status.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- 3500/93 → 3500/94 : Needs Adaptation — LCD Display vs. VGA Display Device
- 3500/93 → 3500/95 : Needs Adaptation — Local Display vs. Full User Interface Workstation
- 3500/93 → 3500/92 : Companion — Communication Gateway for remote data access
- Data Update Rate: < 1 second
- Display Capacity: Max 2 display units per 3500 frame


