Overview
The Vorne Industries 77/712-0-H-3 is a compact, 3-digit LED display module engineered for industrial applications requiring BCD-to-decimal conversion. This display accepts parallel or multiplexed BCD input signals and converts them to a clear, red digital readout with 3.3-inch character height. The modular design allows integration into existing control systems, counters, and data acquisition platforms without requiring custom interfaces.
Key Features
- 3-digit discrete LED display with 3.3-inch high characters
- Parallel and multiplexed BCD input support with positive or negative true logic selectable
- Hex value display capability (A–F) for extended functionality
- Plugs directly into compatible Vorne display base units (e.g., 77/232)
- Low-power LED construction suitable for long-term panel mounting
- Industrial-grade reliability for manufacturing, test, and control environments
Technical Specifications
- Display Type: Discrete LED, red 7-segment digits
- Number of Digits: 3
- Character Height: 3.3 inches (8 mm nominal)
- Input Signal: Parallel or Multiplexed BCD
- Input Logic: Positive or negative true (selectable via wiring)
- Supported Values: 0–9, Hex A–F
- Operating Supply Voltage: +V/-V DC (typically 5 VDC or higher, per host base unit)
- Mounting: Plug-in module; mounts in 77/232 or compatible base
- Temperature Range: Standard industrial (verify with Vorne for exact range)
Typical Applications
- Event Counters: Track machine cycles, production runs, or maintenance intervals
- Test Equipment: Display measurement data from meters and analyzers
- Process Monitoring: Show real-time sensor values or setpoint adjustments
- Industrial Control Panels: Integrate into PLC or relay-based systems via BCD output modules
- Legacy System Retrofits: Replace worn or obsolete display modules in existing installations
Compatibility & Replacements
Compatible With
- Vorne 77/232 display base units (series 77 module host)
- Any controller or PLC capable of parallel BCD output (Allen-Bradley CompactLogix, Siemens S7-300, Mitsubishi, Omron, etc.)
- Industrial measurement and test equipment with BCD output
- Event counter and process control applications requiring 3-digit decimal display
Replaces / Drop-In Replacement For
- Other Vorne 77/712 series 3-digit display modules (same pinout and electrical interface)
- Compatible with related Vorne 77 series display options by model suffix
- Verify part number suffix (-0-H-3) matches your host unit and wiring requirements
Works With
- BCD output modules from industrial PLCs and controllers
- Parallel input signal conditioning electronics
- Reed relay output boards and transistor logic outputs
- Standard 24 VDC or 5 VDC control power supplies
- Multiplexed input timing circuits for dynamic scanning displays
