JingHong SHP-250 Biochemical Incubator

Overview

The JingHong SHP-250 Biochemical Incubator is a precision-engineered, forced-air laboratory incubator designed for stable, reproducible temperature control across life science and environmental testing applications. Operating on the principle of active air circulation via a centrifugal fan and optimized duct geometry, the SHP-250 ensures uniform thermal distribution throughout its 250-liter chamber—critical for sensitive biological processes including microbial cultivation, BOD incubation, seed germination studies, and long-term sample preservation. Its operational range of 0–60 °C accommodates both ambient and sub-ambient requirements typical in water quality analysis, pharmaceutical stability testing, and agricultural research. The unit complies with core design expectations for GLP-compliant laboratories, supporting traceable, repeatable incubation conditions under ISO 17025-aligned workflows.

Key Features

• Mirror-finish 304 stainless steel interior chamber with seamless, radius-rounded corners—resistant to corrosion and compatible with common laboratory disinfectants; facilitates rapid cleaning and minimizes microbial retention.
• Microprocessor-based PID temperature controller with dual digital LED display (setpoint and real-time chamber temperature), enabling intuitive parameter entry, auto-tuning functionality, and stable setpoint maintenance within ±0.1 °C accuracy.
• Dual-layer insulation system using high-density polyurethane foam (≥80 mm thickness) combined with an aluminum-clad outer shell—achieving low thermal leakage and energy-efficient operation over extended cycles.
• Full tempered glass inner door integrated within a double-door architecture—permits visual monitoring without significant thermal disturbance or condensation buildup during frequent access.
• Modular hermetic compressor refrigeration system with built-in safeguards: high/low pressure cut-off switches, delayed compressor restart (≥3 min), and overheat protection—ensuring system longevity and operational safety in continuous-use environments.
• Adjustable stainless steel shelving (standard configuration: 2 shelves, up to 4 optional); shelf spacing is tool-free and configurable to accommodate varied vessel heights (e.g., Petri dishes, Erlenmeyer flasks, BOD bottles).

Sample Compatibility & Compliance

The SHP-250 supports a broad spectrum of biological and environmental samples—including bacterial and fungal cultures (e.g., E. coli, Aspergillus niger), activated sludge assays, algal growth media, plant tissue explants, and biochemical reagent storage. Its temperature uniformity (±0.5 °C across working volume per IEC 61000-4-2 validation methodology) meets routine requirements for ASTM D5210 (BOD₅ testing), USP (microbial enumeration), and EN ISO 11731 (Legionella culture). While not certified to FDA 21 CFR Part 11 out-of-the-box, the device’s deterministic control logic and non-volatile parameter memory support audit-ready documentation when integrated into validated lab information management systems (LIMS).

Software & Data Management

The SHP-250 operates as a standalone instrument with embedded firmware—no proprietary software required for basic operation. All temperature settings, alarms, and system status are accessible via front-panel interface. For integration into centralized monitoring networks, optional RS-485 Modbus RTU output (available via accessory module) enables connection to SCADA platforms or building management systems (BMS). Data logging capability is supported externally using third-party USB or Ethernet-enabled data loggers compliant with IEEE 1451.2 transducer standards. Event logs—including door-open duration, temperature excursions >±1.0 °C, and compressor fault codes—are retained in non-volatile memory for ≥30 days.

Applications

• Environmental microbiology: BOD₅ incubation per APHA Standard Methods 5210B; coliform enumeration; wastewater treatment process monitoring.
• Pharmaceutical QC: Stability studies per ICH Q1A(R2); microbial limit testing per USP ; media fill simulation incubation.
• Agricultural & food science: Seed viability assays; mycotoxin-producing mold cultivation; fermentation starter culture propagation.
• Academic research: Cell line maintenance (non-CO₂ dependent strains); enzyme activity profiling at defined temperatures; photoperiod-independent plant growth staging.
• Public health labs: Pathogen isolation workflows requiring precise, unattended temperature maintenance over 24–168 hour cycles.

FAQ

What is the recommended calibration interval for the SHP-250?
Annual calibration against NIST-traceable reference thermometers is advised for GLP/GMP environments; internal sensor verification using a calibrated thermistor probe can be performed quarterly.
Can the SHP-250 maintain temperatures below ambient?
Yes—the compressor-based cooling system enables operation down to 0 °C regardless of ambient room temperature (rated for 15–30 °C ambient with ≤70% RH).
Is the chamber humidity controlled?
No—this is a dry incubator. Relative humidity is unregulated and will equilibrate with ambient conditions; for humidified operation, consider the JingHong MJ series or paired external humidification modules.
Does the unit include over-temperature protection?
Yes—a redundant mechanical thermostat (independent of the main controller) interrupts power if chamber temperature exceeds 65 °C.
What power supply is required?
Standard single-phase 220 VAC ±10%, 50 Hz, 16 A dedicated circuit with grounded outlet; surge protection is strongly recommended.