. Its introduction revolutionized user interfaces in dental labs by replacing mechanical dials with a numeric membrane keypad and a 7-segment display, which allowed for precise control over firing parameters. The furnace features 90 individual programs
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Use the keys to adjust the value to your material specification.
Maintain at least 25 cm (10 inches) of free space around and above the unit for heat dissipation.
The duration it takes for the furnace head to close fully. Ivoclar Programat P90 Manual
The P90 is exclusively designed for firing, staining, and glazing dental ceramic materials.
Because it is a legacy model, finding an official physical copy of the can be challenging. This comprehensive guide serves as an operational and troubleshooting manual, compiling critical setup steps, programming instructions, error codes, and maintenance workflows for dental technicians. 1. Technical Specifications and Initial Setup
Contact a certified technician to inspect and replace the heating element. Cooling phase was too rapid or opening time was too short. Increase the cooling time parameter ( ) or lower the opening speed. Porcelain appears milky/under-fired Firing temperature was too low or vacuum failed early. Increase target temperature ( ) or verify vacuum pump operation thresholds.
To ensure consistent firing results, regular maintenance and calibration are required: Calibration (Silver Test): Use the keys to adjust the value to
Keep the furnace away from air conditioners, open windows, or high-traffic drafts. Electrical Connections Plug the furnace directly into a dedicated wall outlet. Avoid extension cords or multi-outlet power strips.
Well structured with clear section headings (safety, installation, operation, maintenance). Step-by-step instructions for common tasks are easy to follow; however, some advanced procedures (e.g., furnace parameter tuning) assume prior technical knowledge.
, but manual calibration values are typically found in the "Settings" or "Configuration" menus of the furnace. Vacuum & Heating Tests
): The controlled temperature decline stage to prevent thermal shock. Running a Firing Cycle The P90 is exclusively designed for firing, staining,
If the wire is completely melted into a ball, the furnace is firing too hot.
Use the program selection keys to navigate to your desired program slot.
Never touch the hot furnace head or reach under it during operation; always use the provided tongs for placing objects in the firing chamber. Electrical Safety:
): The duration it takes for the furnace head to close fully, preventing thermal shock to the wet ceramic. The temperature rise per minute (measured in °C/min). Final Firing Temperature ( ): The peak temperature required to mature the porcelain. Holding Time ( ): How long the ceramic remains at the peak temperature. Vacuum On ( V1cap V sub 1 ) and Vacuum Off ( V2cap V sub 2
Operating the Programat P90 requires precise control over specific firing variables. Key Programming Parameters