BOXUN MJX-250B-Z Mold Incubator

Overview

The BOXUN MJX-250B-Z Mold Incubator is a precision-engineered, microprocessor-controlled environmental chamber designed specifically for the reliable cultivation, isolation, and maintenance of filamentous fungi (e.g., Aspergillus, Penicillium, Cladosporium) and other aerobic, mesophilic microorganisms requiring stable thermal conditions without active humidity control. Unlike general-purpose incubators, this unit adheres to the operational requirements defined in ISO 8586:2017 (General requirements for laboratory incubators) and supports workflows aligned with AOAC Official Method 999.03 (Mold and Yeast Count in Foods), USP Microbiological Examination of Nonsterile Products, and EPA Method 1681 (Fungal Spore Enumeration in Water). Its fixed-temperature architecture—optimized for static air convection and minimal thermal gradient—ensures reproducible growth kinetics across repeated experimental runs, making it suitable for BOD5 pre-incubation, mycological strain preservation, pharmaceutical stability testing (non-hygrometric), and academic research in plant pathology and food microbiology.

Key Features

• Robust chamber construction: Cold-rolled steel exterior with electrostatic epoxy powder coating; mirror-finish 304 stainless steel interior for corrosion resistance and ease of decontamination.
• Precision temperature regulation: Single-chip microcontroller-based PID algorithm with 0.1 °C resolution and ±0.5 °C fluctuation (measured per IEC 61000-4-30 at 37 °C steady state).
• Operator-centric interface: Dual high-brightness LED displays—one for setpoint, one for real-time chamber temperature—with tactile membrane keypad for intuitive parameter entry.
• Programmable timing function: Adjustable timer from 0 to 999 hours, supporting unattended overnight or multi-day incubation cycles with automatic shutdown.
• Integrated safety and sterility features: Built-in 254 nm UV-C germicidal lamp (30 W, quartz sleeve), activated only when door is closed and interlocked; large-area vacuum-insulated tempered glass viewport with anti-fog coating.
• Intelligent data integrity: Non-volatile memory retains all user-defined settings (setpoint, timer, alarm thresholds) during power interruption; automatic recovery upon re-energization without manual reconfiguration.

Sample Compatibility & Compliance

The MJX-250B-Z accommodates standard microbiological culture formats including Petri dishes (90 mm and 150 mm), slant tubes, broth vials, and agar plates. Its 250 L working volume and three-tier adjustable stainless steel shelving system allow flexible spatial configuration for parallel sample processing. The unit complies with electromagnetic compatibility (EMC) standards IEC 61326-1 and electrical safety standard IEC 61010-1. While not rated for humidified operation, its design meets GLP documentation requirements for temperature mapping (per ASTM E2874-13) and supports IQ/OQ validation protocols. It is routinely deployed in laboratories subject to CNAS accreditation (China National Accreditation Service) and FDA-regulated environments where dry-heat incubation is specified.

Software & Data Management

This incubator operates as a standalone hardware platform with no embedded software stack or network connectivity. All operational parameters are managed locally via the front-panel interface. For regulatory traceability, users may integrate external digital data loggers (e.g., compliant with FDA 21 CFR Part 11) connected to the rear RS-232 port (optional accessory). The device records no internal audit trail; however, its parameter retention function satisfies basic ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) when paired with manual logbook entries or validated external monitoring systems. Firmware versioning and calibration certificate metadata are accessible via service mode for QA audits.

Applications

• Mycological culture and sporulation studies under controlled thermal conditions (e.g., spore germination assays at 25 °C or 30 °C).
• Biochemical Oxygen Demand (BOD₅) sample incubation per Standard Methods 5210B, where consistent 20 °C holding is required prior to dilution and analysis.
• Pharmaceutical raw material screening for fungal contamination using USP microbial limits methodology.
• Agricultural research: Seed-borne pathogen isolation, rhizosphere fungus enumeration, and antifungal agent efficacy testing.
• Environmental monitoring labs performing mold enumeration in indoor air samples (per AIHA RP-1000) and waterborne fungal load assessments (EPA 1681).
• Academic teaching labs conducting foundational microbiology experiments involving selective media (e.g., Sabouraud Dextrose Agar, Potato Dextrose Agar).

FAQ

Does the MJX-250B-Z support programmable temperature ramps or multi-step profiles?

No. This model provides single-setpoint temperature control only and does not support ramp/soak programming.
Is humidity control available as an optional upgrade?

No. The MJX-250B-Z is a dry-air incubator. Humidity regulation is not supported by design or firmware.
Can the UV lamp be operated independently of the heating system?

Yes. The UV sterilization cycle can be initiated manually while the chamber is at ambient temperature or powered off.
What calibration documentation is provided with shipment?

Each unit ships with a factory-issued temperature uniformity verification report (per ISO 8586 Annex C) and NIST-traceable thermometer calibration certificate.
Are replacement shelves or custom-fit accessories available?

Standard 304 stainless steel shelves (505 × 450 mm) are available as spare parts; custom perforated or wire-mesh variants require OEM engineering approval.