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The Ibex Sciences LS-100HD (100L) Vertical Pressure Steam Sterilizer is the largest model in this specific series of top-loading, floor-standing autoclaves. It scales up the chamber capacity to 100 Liters, making it suitable for high-throughput institutional workloads, larger surgical packs, and bulk preparation of liquid culture media or biological waste management.
⚙️ Technical Specifications
The standard engineering footprint for the Chinese-manufactured 100L platform includes:
- Chamber Volume: 100 Liters (Internal dimensions approx. ∅400mm × 760mm).
- Maximum Working Temperature: 134°C (Adjustable range from 105°C to 134°C).
- Maximum Working Pressure: 0.22 MPa (32 psi).
- Heating System Power: 4500 Watts (4.5 kW).
- Voltage Requirement: AC 220V / 50Hz single-phase (Requires a dedicated heavy-duty laboratory circuit breaker due to high amperage pull).
- Timer Range: Digital micro-processing timer up to 99 hours and 59 minutes.
- Included Accessories: Ships standard with three removable stainless steel wire mesh baskets (utilizing the extra vertical depth compared to the 50L/75L models).
💡 Key Design Features & Physical Upgrades
- Deep Vertical Chamber: While it shares the same 400mm chamber diameter as the 75L version, the 100L model increases vertical depth to roughly 760mm. This allows for stacking three tiers of baskets or accommodating extra-tall volumetric vessels.
- Hand-Wheel Quick-Open Lid: Utilizes the heavy-duty mechanical hand-wheel locking lid. Rotating the hub extends structural lockpins outward under the chamber rim for positive mechanical pressure retention.
- Automated Cycle Management: The digital LCD microprocessor automates the entire run sequence: pre-heating ➔ cold air displacement/purge ➔ sterilization countdown ➔ exhaust cooling ➔ cycle-complete alarm.
- Self-Inflating Gasket Ring: Leverages internal pressure to naturally expand the heavy silastic lid gasket tight, eliminating physical micro-steam leaks under peak load.
- Dual Readout Verification: Features a digital display side-by-side with a physical, analog mechanical pressure-and-temperature gauge for manual cross-verification.
🛡️ Safety & Cutout Protections
- Anti-Dry Burn Assembly: An active fluid-level sensor cuts off electrical power to the 4.5 kW heating element instantly if water drops below the base coils.
- Mechanical Pressure Interlock: The door cannot be turned or unlatched if internal chamber pressure exceeds a safe baseline threshold of 0.027 MPa.
- Over-Pressure Safety Valve: A spring-loaded mechanical safety relief valve cracks open to vent pressure if the vessel steps over safe parameters.
- Over-Temperature Protection: Secondary thermal cut-outs shut down the machine if the chamber temperature spikes past its program limits.
🧪 Routine Maintenance Steps
- Water Fill Quality: Fill only with distilled or deionized water up to the internal grid line before initiating a cycle. Tap water will quickly build up calcium scale, burning out the high-wattage heating coils.
- Basket Load Configuration: Because the 100L chamber is deeply vertical, avoid densely packing the center basket with solid, non-porous materials. Ensure there are pathways for steam to circulate downward to achieve proper sterilization.
- Exhaust Settings for Liquids: When running large 100L batches of liquid agars or broths, ensure the machine is set to Slow Exhaust (or No Exhaust). Rapid venting drops the pressure instantly, causing liquids to boil over violently and ruin your batch.
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