HC MINIB-100P Ethylene Oxide (EO) Sterilization Biological Indicator Incubator
| Brand | HC |
|---|---|
| Origin | Jiangsu, China |
| Model | MINIB-100P |
| Temperature Range | Ambient +5°C to 100°C |
| Temperature Accuracy | ≤ ±0.3°C |
| Heating Time | ≤6 min (20°C → 56°C) |
| Dimensions | 145 × 113 × 110 mm |
| Net Weight | 0.5 kg |
| Display Resolution | 0.1°C |
| Temperature Uniformity | ≤ ±0.3°C |
| Stability | ±0.3°C |
| Timer Range | 1 min – 99 h |
| Power Supply | AC 100–240 V, 50–60 Hz |
| Optional Modules | A (Φ10 mm, 15 wells), B (Φ12 mm, 12 wells), C (Φ15 mm, 8 wells), D (Φ16 mm, 8 wells), E (Φ12 mm conical bottom, 14 wells, compatible with Sihuan BI), F (Φ9 mm, 18 wells) |
Overview
The HC MINIB-100P Ethylene Oxide (EO) Sterilization Biological Indicator Incubator is a compact, microprocessor-controlled metal block heater engineered specifically for the standardized thermal incubation of biological indicators (BIs) used in sterilization process validation and routine monitoring. Designed in accordance with ISO 11138-1 (Sterilization of health care products — Biological indicators) and aligned with USP <1229> and AAMI ST33 requirements, this device maintains precise, stable temperature profiles critical for reliable growth-based detection of resistant spores—particularly Bacillus atrophaeus (for EO sterilization) and Geobacillus stearothermophilus (for steam sterilization). Its rapid thermal response, high uniformity across the heating block, and programmable incubation cycles support compliance-driven workflows in quality control laboratories, contract sterilization facilities, and medical device manufacturing sites operating under ISO 13485 and FDA 21 CFR Part 820 frameworks.
Key Features
- Compact footprint (145 × 113 × 110 mm) and lightweight design (0.5 kg) enable benchtop deployment, mobile lab use, or integration into cleanroom pass-through cabinets.
- High-precision Peltier-assisted heating system with digital PID control ensures temperature accuracy ≤ ±0.3°C and uniformity ≤ ±0.3°C across all well positions—validated per ISO/IEC 17025 calibration practices.
- Seven interchangeable aluminum heating modules (A–F) accommodate diverse BI formats—including 3M Attest™, Huaxin, Sihuan, Fuzee, and Aesculap vials—supporting diameters from Φ9 mm to Φ16 mm and conical-bottom configurations.
- Intelligent thermal ramp algorithm achieves 20°C → 56°C in ≤6 minutes, minimizing cycle start delay without overshoot—critical for maintaining spore viability during initial recovery phase.
- Transparent polycarbonate insulation hood permits real-time visual monitoring of BI color change (e.g., pH indicator transition in enzymatic or metabolic BIs) without opening the chamber or disrupting thermal equilibrium.
- Dual safety architecture includes overtemperature cutoff, open-circuit detection, and automatic restart after power interruption—certified to CE standards for Class II electrical safety and EMC compliance.
Sample Compatibility & Compliance
The MINIB-100P supports biological indicators compliant with ISO 11138-2 (EO-specific BIs) and ISO 11138-3 (steam-specific BIs), including spore strips, self-contained vials, and enzyme-based rapid-readout systems. Module E (Φ12 mm conical bottom, 14-well) is dimensionally matched to Sihuan’s standard EO BI format, while Module F (Φ9 mm, 18-well) accommodates high-throughput screening configurations. All modules are autoclavable (121°C, 20 min) and chemically resistant to residual EO, alcohols, and hydrogen peroxide vapors. The device meets essential requirements of IEC 61010-1 for laboratory equipment safety and supports GLP/GMP documentation through traceable temperature logging when paired with optional USB data export.
Software & Data Management
While the MINIB-100P operates via intuitive front-panel keypad navigation (no PC dependency), its embedded firmware supports time-stamped parameter logging (setpoint, actual temperature, duration) stored in non-volatile memory for up to 100 cycles. Optional USB-C interface enables export of CSV-formatted logs for audit trail generation—fully compatible with electronic lab notebook (ELN) platforms and compliant with FDA 21 CFR Part 11 requirements when used with validated third-party software. All temperature setpoints and timers are password-protected to prevent unauthorized modification during QA/QC audits.
Applications
- Routine incubation of EO-sterilized biological indicators at 56°C per ISO 11138-2 Annex A protocols.
- Validation of sterilizer lethality (F0 or D-value studies) requiring tightly controlled recovery-phase temperatures.
- Environmental monitoring labs performing spore challenge testing on packaging materials and medical devices.
- Contract sterilization providers conducting quarterly BI performance qualification (PQ) per AAMI TIR16.
- Educational institutions teaching sterilization microbiology principles with reproducible, low-footprint instrumentation.
FAQ
What biological indicators is the MINIB-100P validated for?
It is designed for ISO 11138-compliant EO BIs containing Bacillus atrophaeus ATCC 9372, as well as steam BIs with G. stearothermophilus. Module selection must match the physical dimensions of the BI carrier.
Does it support 24 V DC operation?
No—the standard unit requires AC 100–240 V input. A 24 V DC variant is not offered; portable use requires an external AC inverter.
Can temperature data be exported for regulatory submissions?
Yes—via USB-C, raw cycle logs (timestamp, setpoint, measured temp, duration) export as CSV files suitable for inclusion in 510(k) dossiers or EU MDR technical files.
Is calibration traceable to NIST or other national standards?
The unit ships with a factory calibration certificate. Users may perform in-house verification using a NIST-traceable RTD probe; HC provides calibration procedure documentation upon request.
How often should the heating block be cleaned?
After each batch if exposed to condensate or residual sterilant; wipe with 70% isopropyl alcohol and lint-free cloth. Avoid abrasive cleaners or submersion.
