Zhicheng ZXJP-A0230 Ten-Stage Programmable Mold Incubator

Overview

The Zhicheng ZXJP-A0230 Ten-Stage Programmable Mold Incubator is a precision-engineered environmental chamber designed specifically for controlled fungal cultivation, microbial preservation, and long-term stability testing under regulated temperature and relative humidity conditions. It operates on a dual-parameter fuzzy logic control architecture, enabling synchronized, high-fidelity regulation of both thermal and hygric environments across programmable time segments. Unlike standard incubators limited to static setpoints, this unit implements curve-based environmental profiling—supporting up to ten independent stages with up to eighteen total steps per program, each configurable for duration (1–999 minutes), target temperature (−10 °C to +65 °C), and relative humidity (40–95 %RH). Its design complies with foundational requirements for GLP-compliant microbiological laboratories, particularly in applications demanding reproducible hygrothermal stress protocols—such as ISO 8513 (fungus resistance testing), ASTM G21 (synthetic polymer fungal resistance), and USP / microbial enumeration validation workflows.

Key Features

• Fuzzy logic microprocessor control system with real-time adaptive compensation for ambient load fluctuations and door-opening disturbances
• Integrated high-stability capacitive RH sensor and platinum RTD (Pt100) temperature sensor—both factory-calibrated and field-adjustable for display offset correction
• Active frost-free refrigeration using R134a refrigerant with variable-speed compressor modulation, eliminating manual defrost cycles and ensuring uninterrupted operation
• Two-tier water reservoir system with secondary storage tank and capillary-fed humidification—enabling unattended operation for ≥72 hours at 95 %RH
• Forced-air circulation via backward-curved turbine blower and optimized baffle-guided airflow path, achieving ≤±1 °C uniformity at 37 °C and ≤±6 %RH spatial homogeneity across the 230 L chamber volume
• Dual-door construction: outer insulated steel door with magnetic seal + inner tempered glass door with low-emissivity coating—minimizing radiant heat loss while permitting non-invasive observation
• Comprehensive safety architecture including independent overtemperature cutoff (adjustable 30–80 °C), phase-loss/overcurrent circuit breaker, earth-leakage protection (30 mA), and self-diagnostic alarm triggers for low water level, sensor failure, and power interruption

Sample Compatibility & Compliance

The ZXJP-A0230 accommodates standard microbiological sample formats—including Petri dishes (up to 150 mm diameter), test tubes (16 × 150 mm), multiwell plates, and sterile culture flasks—on two standard stainless-steel electropolished shelves (expandable to four). Its interior features seamless mirror-polished 304 stainless steel walls and rounded corners to facilitate cleaning and reduce biofilm retention. The chamber meets IEC 61010-1:2010 safety standards for laboratory equipment and incorporates design elements aligned with ISO/IEC 17025:2017 clause 6.4.2 (environmental condition monitoring). While not certified to FDA 21 CFR Part 11 out-of-the-box, its RS-232 interface supports integration with validated LIMS or ELN systems for audit-trail-capable data capture when paired with compliant software.

Software & Data Management

The built-in LCD interface provides intuitive navigation through program setup, real-time parameter monitoring, and historical event logging (last 100 alarms with timestamps). Optional embedded thermal printer enables hard-copy generation of start/stop logs, calibration verification reports, and deviation alerts. RS-232 serial output permits bidirectional communication with external PCs running terminal emulation or custom SCADA scripts; raw data streams include timestamped T/RH values, stage transitions, and fault codes. All user-modifiable parameters—including PID tuning coefficients, alarm thresholds, and display calibration offsets—are password-protected (four-digit numeric code) to ensure configuration integrity during shared-lab use.

Applications

This incubator serves critical roles in pharmaceutical quality control (e.g., accelerated stability studies per ICH Q1A(R2)), environmental microbiology (BOD₅ incubation, activated sludge testing), agricultural pathology (spore germination assays, host-pathogen interaction studies), and bioburden validation for medical device packaging per ISO 11737-1. Its precise humidity ramping capability makes it suitable for simulating seasonal moisture cycling in material degradation studies, while its −10 °C cooling capacity supports psychrophilic mold isolation and cryopreservation pre-conditioning. Regulatory users routinely deploy it in AOAC-approved methods for mycotoxin-producing strain maintenance and EPA Method 1682 (fungal spore viability assessment).

FAQ

What is the maximum allowable ambient operating temperature?
The unit is rated for continuous operation within ambient temperatures of 5 °C to 35 °C; operation above 35 °C may compromise humidity control stability and compressor longevity.
Can the incubator maintain humidity below 40 %RH?
No—this model is engineered exclusively for humidification; dehumidification or dry-air operation requires supplemental desiccant or nitrogen purge systems.
Is the RS-232 interface compatible with modern Windows/Linux systems?
Yes, using standard USB-to-serial adapters and industry-standard ASCII command protocol documented in the technical manual.
How often does the water reservoir require refilling during continuous 95 %RH operation?
With both primary and secondary tanks filled, typical runtime exceeds 72 hours before refill is needed—actual duration depends on ambient temperature and door-open frequency.
Does the unit support validation documentation packages (IQ/OQ/PQ)?
Zhicheng provides factory-as-tested calibration certificates and mechanical drawings; full qualification protocols must be developed in-house or by third-party service providers per client SOPs.