Q1: How to choose between models?
A: Select by capacity and temperature range: SPL-80 to SPL-500 support 0-65°C for general cultivation; SPL-1000 is 4-60°C, designed for large-volume BOD testing. Internal volume ranges from 80L to 1000L—choose based on sample load.
Q2: How are temperature accuracy and uniformity ensured?
A: Uses fuzzy PID control with ±0.3°C fluctuation and 0.1°C resolution. Unique centrifugal fan duct design ensures uniformity, with three adjustable airflow speeds for different experimental needs.
Q3: What are the key design features?
A: Main features:
Mirror stainless steel chamber with rounded corners for easy cleaning
30mm test port on left side for wiring or sampling
Built-in UV sterilization lamp
External power outlet for connecting internal devices
Q4: Is the refrigeration system eco-friendly?
A: Uses a green fluorine-free refrigeration system (refrigerant R134a), meeting environmental standards. The system includes a removable dust filter for easy maintenance.
Q5: What safety functions are included?
A: Three-layer protection:
Independent over-limit temperature alarm (audio-visual)
Abnormal temperature (too high/low) alarm
Leakage protection switch
Q6: Is programmable control available?
A: Base models operate at set values. Optional upgrades:
Intelligent programmable controller: 30-segment temperature programming
True color touchscreen controller: large display with real-time curves
Micro printer: timed data printing
485/USB interface: remote monitoring and data export
Q7: What is the shelf load capacity?
A: All models have standard 15kg per shelf. SPL-80/150: 2 shelves; SPL-250/350/500: 3 shelves; SPL-1000: 6 shelves.
Q8: What are the installation requirements?
A: Key requirements:
Power: AC220V/50-60Hz
Ambient temperature: 5-40°C (performance tested at 20°C, 50%RH, no-load)
Ventilation space: ≥20cm clearance on all sides
SPL-1000 delivery: 30 days after order
Q9: How to clean and maintain?
A: Recommendations:
Monthly cleaning of chamber and door seals
Quarterly cleaning of refrigeration system dust filter
Regular calibration using temperature correction function
Power off and clean chamber when not in use for extended periods
Q10: What are typical applications?
A: Designed for:
Water analysis and BOD testing
Bacteria, mold, and microorganism cultivation/preservation
Plant cultivation and breeding experiments
Environmental, disease control, drug testing, agricultural research
