Zhicheng ZXJD-A1270 Mold Incubator with Observation Window

Overview

The Zhicheng ZXJD-A1270 Mold Incubator with Observation Window is a precision-engineered environmental chamber designed specifically for controlled fungal culture, microbial propagation, and long-term stability testing of biological specimens under regulated temperature and humidity conditions. It operates on a robust fuzzy logic control architecture—enabling adaptive response to ambient fluctuations while maintaining high reproducibility across extended operational cycles. Unlike general-purpose incubators, this unit integrates dedicated mold-specific thermal management, including intelligent frost-free refrigeration (R134a-based, power-modulated cooling), optimized air distribution via a high-efficiency turbine fan, and a geometrically refined internal cavity that minimizes thermal stratification and condensation risks. The tempered glass observation window—mounted within a dual-layer insulated door assembly—allows real-time visual monitoring without compromising chamber integrity or introducing thermal load disturbances. Its operational envelope spans 4–65 °C with ±0.5 °C fluctuation and ≤±1 °C uniformity at 37 °C, meeting foundational requirements for ISO 14644-1 Class 7 cleanroom-adjacent laboratory environments and supporting GLP-compliant microbiological workflows.

Key Features

• Fuzzy logic microprocessor control system with adaptive PID tuning for dynamic compensation of door openings, load changes, and ambient drift
• High-stability integrated temperature/humidity sensor with rapid response time (<3 s) and NIST-traceable calibration capability
• Dual-stage automatic water reservoir system eliminating manual refilling; supports continuous operation for ≥72 h under constant-humidity mode
• Stainless steel mirror-finish interior (electropolished 304 SS) and polished stainless steel shelving—non-porous, corrosion-resistant, and compliant with ISO 15223-1 labeling standards for medical device environments
• Programmable multi-segment operation: up to 10 user-defined segments, each containing up to 18 sequential steps with independent setpoint, ramp rate, and dwell time (1–999 min per step)
• Comprehensive safety architecture: three-tiered overtemperature protection (independent adjustable overheat limiter, fixed over-temperature cutoff, and electronic thermal fuse), plus leakage current detection and refrigeration compressor overload safeguard
• Self-diagnostic subsystem reporting low-water status, power interruption, sensor failure, and upper/lower temperature limit breaches via audible/visual alerts
• Front-accessible Φ50 mm test port with silicone gasket seal—enabling integration with external sensors, gas analyzers, or data loggers without chamber depressurization

Sample Compatibility & Compliance

The ZXJD-A1270 accommodates a broad spectrum of biological and environmental samples, including agar plates, liquid cultures in flasks or tubes, seed germination trays, and BOD bottles. Its 270 L working volume (600 × 600 × 750 mm internal dimensions), combined with modular shelving (2 standard, expandable to 4), ensures flexibility for both high-throughput screening and low-density long-term storage applications. The chamber meets structural and functional criteria referenced in ASTM E171 (Standard Specification for Environmental Chambers), ISO 8573-1 (compressed air purity for ancillary systems), and USP (Microbiological Control and Monitoring of Aseptic Processing Environments). While not certified to IEC 61000-4 electromagnetic compatibility standards out-of-box, its RS-232 interface (optional) supports audit-ready data export compatible with FDA 21 CFR Part 11–compliant LIMS platforms when paired with validated software.

Software & Data Management

The built-in LCD interface provides intuitive navigation of all operational parameters—including real-time temperature/humidity display, elapsed time tracking, and active program status. Optional RS-232 serial connectivity enables bidirectional communication with host PCs running third-party SCADA or ELN systems (e.g., LabArchives, Benchling). When equipped with the embedded thermal printer, the unit generates time-stamped hardcopy logs of temperature profiles, alarm events, and parameter modifications—satisfying documentation requirements for ISO/IEC 17025 accredited laboratories. All configuration settings—including password-protected parameter adjustments, temperature offset calibration, and clock synchronization—are retained through power loss via non-volatile EEPROM memory. The “power recovery” function automatically resumes the pre-interruption program sequence upon grid restoration, preserving experimental continuity.

Applications

This incubator serves as a primary platform for mycological research, pharmaceutical stability testing, environmental microbiology, and agricultural biotechnology. Typical use cases include Aspergillus and Penicillium strain maintenance, fungal spore germination kinetics, BOD₅ incubation per APHA Standard Methods 5210B, antimicrobial susceptibility testing (AST) under CLSI M38 guidelines, and plant tissue culture under defined hygrometric conditions. Its precise low-temperature capability (down to 4 °C) also supports psychrotolerant organism studies and cold-chain validation protocols. In regulatory contexts, it supports method verification for USP , , and , as well as OECD 209 biodegradability assays.

FAQ

Does the ZXJD-A1270 support humidity control as standard?
Humidity functionality is configurable: units may be ordered in dry-wet cycling mode or constant-humidity mode, but humidity generation hardware is not included by default and must be specified at time of order.
Is the RS-232 interface optically isolated?
No—the standard RS-232 port is electrically coupled; galvanic isolation requires an externally mounted signal conditioner or USB-to-RS232 converter with isolation rating.
Can the incubator operate continuously at 4 °C with full refrigeration load?
Yes, the R134a refrigeration system is rated for uninterrupted operation across the full 4–65 °C range, including sustained low-temperature holding under maximum internal load conditions.
What is the validation support documentation available?
Factory-issued IQ/OQ documentation templates are provided; PQ protocols must be developed in-house per site-specific SOPs and qualified using NIST-traceable reference thermometers and hygrometers.
Are replacement shelves and door gaskets available as spare parts?
Yes—Zhicheng supplies OEM-certified electropolished stainless steel shelves (part #ZX-SH-02), silicone door gaskets (part #ZX-GSK-01), and water reservoir assemblies (part #ZX-WR-03) with documented shelf life and material certifications.