Brookfield BAT70/150/250/360/460/600-MSH Intelligent Mold Incubator

Overview

The Brookfield BAT-MSH series Intelligent Mold Incubator is a precision-controlled, forced-convection environmental chamber engineered for reliable long-term cultivation of filamentous fungi, yeasts, and other microorganisms requiring stable, humidified, and contamination-minimized conditions. Designed in accordance with ISO 11133:2014 and CLSI M44-A3 guidelines for microbiological culture incubation, the system employs a balanced refrigeration circuit combined with adaptive PID temperature regulation to maintain setpoint integrity across extended operational cycles. Its core architecture integrates a high-stability PT100 platinum resistance thermometer with low self-heating coefficient (<0.05 °C/mW), ensuring rapid response (<15 s) to thermal transients while minimizing measurement drift. The incubator operates within a validated temperature range of 4–60 °C — encompassing both psychrophilic and thermotolerant mold growth requirements — and delivers ±0.5 °C fluctuation and ±1 °C uniformity (measured per ASTM E2234-21 at three horizontal points per shelf).

Key Features

• Full-color LCD controller with real-time parameter display, supporting both time-set and duration-based operation modes (0–9999 min or 0–999 h)
• Adaptive PID algorithm with anti-overshoot logic, dynamically adjusting heating/cooling duty cycles based on load mass and ambient drift
• Laser-welded, one-piece stainless steel outer chassis with electrostatic powder coating; interior chamber constructed from electropolished mirror-finish 304 stainless steel with radius-rounded corners for seamless cleaning and biofilm prevention
• Dual-pane insulated observation door with inner tempered glass layer — maintains thermal stability during visual inspection without compromising internal gradient integrity
• Integrated LED illumination (white spectrum, 3000 K CCT) and optional UV-C germicidal lamp (254 nm, 15 W) mounted on ceiling panel for routine decontamination between runs
• Front-mounted 220 V AC outlet (IEC 60320 C13) inside working chamber, enabling direct power supply to peripheral sensors or small-scale auxiliary equipment
• Multipoint safety architecture: compressor overheat protection, centrifugal fan thermal cutoff, independent overtemperature limiter (non-resettable fuse), high-pressure refrigerant switch, and motor overload relay

Sample Compatibility & Compliance

The BAT-MSH series accommodates standard Petri dishes (90–150 mm), multi-well plates (6–96-well), slant tubes, and liquid culture flasks up to 2 L volume. Its forced-air circulation system — driven by a backward-curved impeller fan — achieves ≥12 air exchanges per hour with laminarized flow distribution, minimizing thermal stratification and ensuring reproducible colony morphology across all shelf levels. All models comply with IEC 61010-1:2010 for laboratory electrical safety and meet EN 60529 IP20 ingress protection standards. Optional RS485 Modbus RTU or USB-to-serial interfaces support integration into centralized facility monitoring systems compliant with FDA 21 CFR Part 11 data integrity requirements when paired with validated third-party logging software.

Software & Data Management

While the base unit features standalone mechanical control, optional communication modules enable bidirectional telemetry via industry-standard protocols. The RS485 interface supports up to 32 daisy-chained units on a single bus, permitting synchronized scheduling and alarm aggregation in multi-incubator laboratories. When connected to a host PC running compliant GLP/GMP audit-trail software (e.g., LabArchives ELN or Thermo Fisher SampleManager), temperature logs retain immutable timestamps, user authentication metadata, and electronic signature capability. Optional thermal printer output (via built-in micro-thermal module) produces time-stamped strip charts traceable to NIST-traceable reference thermometers, satisfying ISO/IEC 17025 documentation mandates for accredited testing labs.

Applications

• Standardized mycological testing per AOAC 997.05 (mold and yeast enumeration in food)
• Pharmaceutical environmental monitoring (EM) programs per USP and EU Annex 1
• Antifungal susceptibility testing (AFST) using CLSI M38 methodology
• Biodegradation studies of polymers and textiles under controlled fungal colonization
• Production of spore suspensions for vaccine adjuvant development (e.g., Aspergillus niger conidia)
• Long-term stability assessment of probiotic formulations containing fungal strains

FAQ

What is the recommended calibration frequency for the PT100 sensor?
Per ISO/IEC 17025, annual verification against a certified reference thermometer (±0.1 °C accuracy) is advised; field checks using a portable dry-block calibrator are recommended before critical validation runs.
Can the UV lamp be operated simultaneously with temperature control?
Yes — the UV-C module is electrically isolated and interlocked with door position; it activates only when the chamber is sealed and temperature is stabilized above 15 °C to prevent condensation-induced lamp failure.
Is the incubator suitable for BSL-2 applications?
The unit itself is not rated for biosafety containment; however, it may be installed within a certified BSL-2 cabinet or anteroom environment when used with sealed culture vessels and appropriate PPE protocols.
How does the adaptive PID algorithm differ from conventional fixed-gain controllers?
It continuously recalculates proportional band, integral time, and derivative gain based on real-time deviation magnitude and rate-of-change, reducing settling time by up to 40% compared to static tuning — particularly beneficial during frequent door openings or large sample loading events.
Are spare shelves and UV lamps available as consumables?
Yes — stainless steel shelves (part no. BAT-SH-SS), quartz UV sleeves (BAT-UV-QZ), and 254 nm low-pressure mercury lamps (BAT-UV-LP254) are stocked and shipped globally with documented CoA and lot traceability.