Labotery GSP-45 Water-Jacketed Constant Temperature Incubator
| Brand | Labotery |
|---|---|
| Origin | Tianjin, China |
| Model | GSP-45 |
| Temperature Range | RT+5–65°C |
| Temperature Resolution | 0.1°C |
| Temperature Uniformity (Stability) | ±0.2°C |
| Heating Method | Water-jacketed |
| Power Consumption | 0.4 kW |
| Timer Range | 0–999.9 min/h |
| Chamber Dimensions (W×D×H) | 350×300×400 mm |
| External Dimensions (W×D×H) | 500×520×710 mm |
| Standard Shelving | 2 shelves, 15 kg/shelf |
| Net Weight | 43 kg |
| Gross Weight | 50 kg |
| Power Supply | 220 V / 50 Hz |
Overview
The Labotery GSP-45 Water-Jacketed Constant Temperature Incubator is an engineered solution for stable, uniform thermal environments in cell culture, microbiological growth, enzyme assays, and long-term biological storage applications. Unlike forced-air incubators, the GSP-45 employs a passive water-jacket heating system—where a sealed outer chamber circulates heated water around the inner working chamber—to deliver exceptional thermal inertia and minimal temperature fluctuation. This architecture ensures high reproducibility across extended incubation cycles, particularly critical for sensitive eukaryotic cell lines, primary cultures, and low-metabolism organisms. The unit operates within a controlled range of RT+5°C to 65°C, with a resolution of 0.1°C and stability maintained at ±0.2°C under no-load conditions (20°C ambient, 50% RH), meeting baseline performance expectations for GLP-compliant laboratories conducting routine biological maintenance and qualification studies.
Key Features
- Double-layer tempered glass observation window with anti-fog coating for uninterrupted visual monitoring without thermal disturbance.
- Mirror-polished stainless steel interior chamber (304 grade) — corrosion-resistant, non-porous, and compliant with ISO 14644-1 Class 8 cleanroom-compatible surface requirements.
- Independent water jacket design eliminates risk of internal leakage; integrated water-level sensor provides real-time visual indication and automatic acoustic-optical alarm at low level, halting heater activation until refilled.
- Dual-mode air circulation system: selectable “low-velocity centrifugal airflow” mode for uniform heat distribution without desiccating samples, and “static mode” (fan-off) for ultra-low shear environments required in embryoid body formation or soft-agar colony assays.
- Microprocessor-based PID controller with adaptive self-tuning algorithm — eliminates manual parameter tuning, minimizes overshoot, and achieves thermal recovery <15 minutes after 30-second door opening (tested per ASTM E1228-22 Annex A1).
- Tactile recessed door latch with adjustable tension mechanism ensures consistent gasket compression and maintains chamber integrity across repeated access cycles.
Sample Compatibility & Compliance
The GSP-45 accommodates standard tissue culture flasks (T25–T175), Petri dishes (up to 150 mm), multi-well plates (6–96-well), and glass culture tubes. Its water-jacketed architecture inherently suppresses condensation on vessel surfaces and reduces relative humidity gradients — a key advantage over air-jacketed units when culturing moisture-sensitive strains or performing prolonged static incubations. While not certified to IEC 61010-1 Ed. 3 for hazardous location use, the incubator conforms to general laboratory safety standards for Class II equipment. It supports documentation workflows aligned with FDA 21 CFR Part 11 (when paired with validated external data loggers) and facilitates audit-ready records through its built-in timer with non-volatile memory retention.
Software & Data Management
The GSP-45 operates via an embedded LCD interface with intuitive navigation and real-time display of setpoint, actual temperature, elapsed time, and water level status. Although it does not feature Ethernet or USB connectivity, its timer function logs duration with 0.1-minute precision and retains settings after power interruption. For regulated environments requiring electronic record integrity, integration with third-party compliant data acquisition systems (e.g., Omega iSeries or Testo Saveris 2) is supported via analog 4–20 mA output (optional accessory). All firmware operations comply with IEC 62304 Class B software lifecycle requirements.
Applications
- Mammalian and insect cell line propagation under CO₂-free conditions.
- Bacterial and fungal cultivation for antibiotic susceptibility testing (AST) per CLSI M07-A10 guidelines.
- Enzyme activity profiling at defined thermal setpoints (e.g., Taq polymerase validation, restriction digest optimization).
- Seed germination and plant tissue culture where humidity stability outweighs gas exchange needs.
- Quality control incubation of diagnostic reagents and reference standards per ISO 17025 clause 5.9.2.
FAQ
What is the thermal recovery time after door opening?
Typically ≤12 minutes to return within ±0.2°C of setpoint following a 30-second door opening event at 37°C, verified per internal protocol TR-GSP-03.
Can the unit be used for mycobacterial culture at 37°C?
Yes — the water-jacket design ensures minimal temperature deviation during extended operation, satisfying CDC-recommended incubation stability for acid-fast bacilli isolation.
Is calibration traceable to NIST standards?
The factory calibration uses PT100 sensors traceable to CNAS-accredited reference standards; users may perform field verification using a calibrated thermistor probe per ISO/IEC 17025 Section 6.6.
Does the incubator support continuous temperature logging?
Not natively — however, analog output (4–20 mA) enables connection to external compliant loggers for ALCOA+ data integrity.
What maintenance is required for the water jacket?
Deionized water must be replenished monthly; annual inspection of jacket seal integrity and heater element resistance is recommended per maintenance schedule MS-GSP-01.
