DRETOP ZMJ-100-I Mold Incubator

Overview

The DRETOP ZMJ-100-I Mold Incubator is a precision-engineered, forced-air thermal chamber designed specifically for the controlled cultivation of filamentous fungi, yeasts, and other eukaryotic microorganisms under stable, reproducible temperature conditions. Unlike general-purpose incubators, this unit is optimized for mycological applications—supporting accelerated mold growth protocols (e.g., ISO 846, ASTM G21, IEC 60068-2-10), BOD testing, microbial strain preservation, and environmental stress evaluation of materials and electronic components. Its operation relies on a robust P.I.D.-regulated heating system coupled with an imported axial-flow circulation fan and multi-path air duct architecture to ensure uniform thermal distribution across the entire 100 L working volume. The absence of active humidity control reflects its intended use in standardized dry-heat mold susceptibility testing, where ambient RH is either externally monitored or maintained within laboratory-controlled environments per GLP-compliant workflows.

Key Features

• Microprocessor-based P.I.D. temperature controller with 0.1 °C resolution and programmable timer (1–9999 minutes); supports auto-recovery after power interruption with parameter memory retention.
• Forced convection system featuring a high-efficiency imported centrifugal blower and optimized internal airflow channels—validated to achieve ±1 °C uniformity at 25 °C (empty chamber).
• Double-door structure: outer magnetic door seal with nano-composite insulation gasket; inner tempered glass door enabling full-field visual monitoring without thermal disturbance.
• Electropolished mirror-finish stainless steel interior (SUS304), radius-cornered design, and adjustable stainless steel shelving for ease of cleaning and contamination control.
• Integrated UV-C germicidal lamp mounted at the top chamber ceiling—operates during standby to continuously decontaminate recirculated air, reducing airborne bioburden in non-sterile but microbiologically sensitive applications.
• Modular refrigeration system (for models with cooling capability; ZMJ-100-I operates in heating-only mode) with compressor protection logic—including startup delay, shutdown interval, and automatic defrost cycle—ensuring long-term reliability.
• Ergonomic mechanical button interface with large LCD display showing real-time temperature, setpoint, elapsed time, and status indicators—designed for glove-compatible operation in QA/QC labs.
• Four-position leveling feet with dual-function casters: omnidirectional mobility plus locking stability for secure placement in shared lab spaces.

Sample Compatibility & Compliance

The ZMJ-100-I accommodates standard Petri dishes (90–150 mm), slant tubes, culture flasks (up to 500 mL), and material test coupons (per ASTM D3273, ISO 846). Its temperature performance meets the requirements for routine microbiological incubation as specified in USP , CLSI M22-A3, and ISO/IEC 17025-accredited laboratories. While not certified for medical device sterility validation (ISO 11137) or pharmaceutical stability testing (ICH Q1A–Q1E), it is routinely deployed in pre-screening stages of antimicrobial efficacy studies, packaging integrity assessments, and environmental simulation per MIL-STD-810H Method 508.5 (Fungal Resistance). No integrated humidity control means compliance with dry-heat mold challenge protocols only; users requiring RH modulation must integrate external humidification systems validated per ISO 14644-3 Annex B.

Software & Data Management

The base ZMJ-100-I operates via embedded firmware without onboard data logging. Optional RS485 serial interface (with dedicated PC software) enables real-time temperature acquisition, time-series curve visualization, and CSV export for audit-ready records—fully compatible with 21 CFR Part 11-compliant electronic signature workflows when paired with validated third-party LIMS platforms. An optional 4.3″ color touchscreen (ZMJ-100-II variant) adds local graphing, alarm history, and up to 30-segment programmable ramp-soak profiles. All firmware versions support GLP-required features: user-accessible event logs (power loss, door open, deviation alerts), password-protected parameter modification, and timestamped calibration verification entries.

Applications

• Mold susceptibility screening of polymers, coatings, adhesives, and printed circuit boards per ASTM G21 and IEC 60068-2-10.
• BOD₅ incubation for wastewater analysis in accordance with APHA Standard Methods 5210B.
• Long-term storage and revival of fungal stock cultures (e.g., Aspergillus niger, Penicillium chrysogenum) at defined sub-optimal temperatures (4–25 °C).
• Accelerated aging studies evaluating hygrothermal degradation kinetics of composite materials under controlled thermal stress.
• Environmental simulation for defense electronics qualification, including fungus resistance testing per MIL-STD-810H.
• Teaching laboratories supporting undergraduate microbiology curricula—ideal for observing colony morphology, sporulation timing, and substrate utilization patterns.

FAQ

Does the ZMJ-100-I provide humidity control?
No. This model is a temperature-only incubator with no integrated humidification or dehumidification system. Relative humidity must be managed externally if required.
Is the UV lamp operational during incubation cycles?
The UV-C lamp is manually or timer-controlled and is typically activated only during idle periods to minimize photodegradation of sensitive cultures; it automatically deactivates when the door opens.
What safety certifications does the unit hold?
It complies with IEC 61010-1:2010 for laboratory electrical equipment and carries CE marking per EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. UL/cUL listing is available upon request for North American deployment.
Can the incubator be used for cell culture?
Not recommended. Absence of CO₂ regulation, HEPA filtration, and humidity control makes it unsuitable for mammalian or insect cell work; it is strictly intended for non-sterile, non-CO₂-dependent microbial applications.
What is the warranty coverage?
Standard 24-month parts-and-labor warranty from date of shipment, extendable to 36 months with annual preventive maintenance contract.