Control system for Steam sterilizer 's opportunity
Technical Specifications
Clientمكتب دلتا العلمى
Project CodeControl system for Steam sterilizer 's opportunity
CountryEgypt
IndustryBiomedical
Scope of Work
A. Electrical & Control Panel Design
Panel Enclosure : Enclosure attached directly to the autoclave body, including proper cooling/ventilation for internal components.
Hardware Selection & Integration:
PLC CPU and digital/analog I/O expansion modules.
HMI touch terminal mounted on autoclave body.
Main isolator switch, GV2, Contactor, fuses, and 24V DC power supply.
Panel Documentation: Detailed electrical schematics (power distribution, 24V DC control circuits, I/O mapping, and terminal block layout).
B. Control Logic & PLC Programming
Operating Modes: HMI-selectable operational profiles.
Configurable Cycle Parameters:
Target sterilization temperatures and holding timers.
conditioning parameters (number of vacuum pulses).
Fast or slow exhaust rates, drying times, and vacuum drying phases.
Safe door-release temperature and pressure thresholds.
Sequence Control (State Machine):
Door Lock Verification: Ensuring mechanical seal and pressure interlock before cycle start.
Air Removal: Pulsed vacuum displacement sequences.
Heating : Duty cycle temperature/pressure regulation during the sterilization hold period.
Drying & Unloading: Vacuum drying and safe release notification.
C. HMI Interface Design
Process Overview Screen: Animated live status of temperature, pressure, valve states, and active phase timer.
Recipe / Parameter Management: Screen for editing, saving, and applying operational setpoints.
Alarm System & Diagnostics: Real-time banner, active fault page, and sensor failure detection.
Multi-Level Access Control: Role-based password protection (Operator vs. Technician/Supervisor).
D. Safety & Interlock Systems
Door Interlock Circuit: Software interlocks preventing door unlock until chamber pressure drops to atmospheric level and temperature reaches a safe limit.
Over-Temperature / Over-Pressure Safety: Independent safety shutdown logic isolating heating elements and opening safety relief valves if set limits are breached.
Results & Improvements
Project Overview
Control system for Steam sterilizer 's opportunity