Hebei Jihepu MJX-250B-Z Mold Incubator

Overview

The Hebei Jihepu MJX-250B-Z Mold Incubator is a microprocessor-controlled, forced-air environmental chamber engineered for stable, long-duration cultivation of filamentous fungi, yeasts, and other humidity-sensitive microorganisms under precisely regulated thermal and hygroscopic conditions. Designed in accordance with standard laboratory incubation requirements for mycological work—including ISO 7218:2017 (Microbiology of food and animal feeding stuffs), USP and , and CLSI M22-A3—this unit integrates dual-mode temperature control (refrigeration + heating) with independent humidity regulation to eliminate thermal drift and condensation-related contamination risks during extended BOD testing, fungal isolation, or antibiotic susceptibility assays. Its sealed chamber architecture, combined with an R134a-based refrigeration system and low-noise axial circulation fan, ensures continuous operation over 72+ hours without performance degradation—a critical requirement for mold growth kinetics studies and regulatory-compliant stability testing.

Key Features

• Forced-air convection system with rear-mounted high-efficiency centrifugal blower for uniform temperature distribution (±1.5 °C across full working volume)
• Dual-stage microcomputer PID temperature controller with 0.1 °C resolution, real-time digital display (dual LED screens), and programmable ramp-hold profiles
• Independent humidity control via ultrasonic humidifier and integrated desiccant-assisted dehumidification, maintaining 20–95 % RH with ±3 % RH accuracy
• UV-C germicidal lamp (254 nm) mounted in ceiling panel for chamber sterilization between cycles, compliant with ISO 14644-1 Class 8 cleanroom pre-use protocols
• Four-tier adjustable 304 stainless steel shelving system; all trays removable and autoclavable (121 °C, 20 min)
• Power failure recovery function with non-volatile memory preserving setpoints, elapsed time, and alarm status; automatic restart upon power restoration
• Insulated double-wall construction with vacuum-sealed tempered glass observation window (≥70° viewing angle) and magnetic door seal ensuring minimal thermal leakage

Sample Compatibility & Compliance

The MJX-250B-Z supports standard microbiological sample formats including Petri dishes (up to 150 mm), test tubes (16 × 150 mm), multi-well plates (6–96-well), and Erlenmeyer flasks (up to 1 L). Its interior geometry accommodates stacked culture racks and humidity-tray configurations required for ASTM D3273 (Resistance to Fungal Growth on Building Materials) and EN 15282-1 (Biological evaluation of medical devices). The unit meets CE marking requirements for electrical safety (EN 61010-1) and electromagnetic compatibility (EN 61326-1). While not certified for GMP manufacturing environments, its data logging capability, parameter lockout mode, and audit-ready event history support GLP-compliant documentation per OECD Principles of Good Laboratory Practice (ENV/MC/CHEM(98)17).

Software & Data Management

This incubator operates as a standalone instrument with embedded firmware supporting local data retention for up to 30 days of continuous temperature/humidity logs (sampled every 2 minutes). Optional RS-485 interface enables integration into LabVantage, Thermo Fisher SampleManager, or custom SCADA systems via Modbus RTU protocol. All parameter changes are timestamped and user-ID tagged (where external authentication is enabled), satisfying traceability requirements under FDA 21 CFR Part 11 when paired with validated third-party electronic lab notebook (ELN) software. No cloud connectivity or proprietary vendor software is required for basic operation.

Applications

• Mycological culture maintenance and sporulation induction (e.g., Aspergillus spp., Penicillium spp., Fusarium spp.)
• Biochemical Oxygen Demand (BOD₅) incubation per APHA Standard Methods 5210B
• Pharmaceutical stability testing of excipients under ICH Q1A(R2) intermediate storage conditions (25 °C / 60 % RH)
• Agricultural seed germination and phytopathogen challenge assays (e.g., Botrytis cinerea on detached leaf assays)
• Environmental monitoring of indoor air quality using settle plate methods (ISO 14698-1)
• Validation of antimicrobial efficacy against molds per CLSI M38-A3 and EUCAST E.Def 9.3

FAQ

Does the MJX-250B-Z comply with FDA 21 CFR Part 11 for electronic records?

It supports Part 11–aligned workflows when connected to a validated ELN or LIMS; however, native electronic signatures and audit trails require external software integration.
Can this incubator operate continuously at 30 °C and 85 % RH for 168 hours?

Yes—its R134a refrigeration circuit and PID-driven humidity modulation enable uninterrupted operation under these conditions, verified by internal 168-h validation runs per ISO/IEC 17025 clause 7.8.2.
Is the stainless steel interior electropolished or passivated?

The 304 stainless steel chamber is mechanically polished to Ra ≤ 0.8 µm and citric acid passivated per ASTM A967, ensuring corrosion resistance against routine disinfectants (e.g., 70 % ethanol, 0.5 % sodium hypochlorite).
What is the maximum load weight per shelf?

Each shelf is rated for 15 kg uniformly distributed load; total chamber capacity remains 250 L regardless of loading configuration.
Are calibration certificates included with shipment?

Factory calibration reports (temperature and humidity) are provided; NIST-traceable field calibration is recommended annually and may be performed using accredited third-party service providers.